history

Some news on the project front, which partially explains the slow output on this end lately in terms of hidden hydrology updates:  I’m moving from Seattle back to Portland.  As regular readers know, the project origins are firmly rooted in Portland, including plenty of documentation and expansion of ideas around Tanner Springs Creek (seen below), and maybe I will finally track down one of those elusive ‘I Kayaked Tanner Creek‘ t-shirts of legend.  Anyway, happy to announce this news, and Portland folks, let me know if you’re interested in some exploring in coming months.

There’s also a plethora of other areas to explore, and also to compare and contrast the unique dichotomy of Portland as a river city and Seattle as more of a ocean & lake city, and what that means/meant for development.  On that note, one item I’ve not announced is some of the work figuring out the best format for a Hidden Hydrology Atlas that will span both Seattle and Portland – so stay tuned for more of this as technology and funding aligns.  For now you can see the early version of the online example of interactive maps I’m testing out using a combination of Mapbox and my GIS database of information.  Early days, but the potential is there, and it will expand into something more comprehensive and multi-media.

While I did get to explore a number of Seattle hidden streams, there’s so much more to do and lots to document for Ravenna, Yesler, and Green Lake, and hopefully coming back up to do more investigations.  In the interim, one of my explorations I documented here in Seattle from last summer, Licton Springs, was the departure point for an essay I wrote recently for The Nature of Cities that was just published this week. Read ‘Map and Explore: Hidden Hydrology’ for some thoughts on exploring our places and connecting with our culture, geography and ecology.

So, stay tuned as projects, posts, and explorations will all pick up over the summer months.  And as always, thanks for reading.  See you all in Portland soon.

-Jason

The Atlas for the End of the World is a great model for a compendium of research and mapping on a focused topic, which has relevance to my endeavor here at Hidden Hydrology.  While the content, scale and goals are different, the structure of information in the format of the ‘atlas’ and the combination of mapping, data, and critical inquiry through essay all resonate as a great precedent.

The project was conceived by Richard Weller from The University of Pennsylvania (UPenn), with collaborators Claire Hoch and Chieh Huang.  A summary of the project, launching in 2017, comes from the site:

“Coming almost 450 years after the world’s first Atlas, this Atlas for the End of the World audits the status of land use and urbanization in the most critically endangered bioregions on Earth. It does so, firstly, by measuring the quantity of protected area across the world’s 36 biodiversity hotspots in comparison to United Nation’s 2020 targets; and secondly, by identifying where future urban growth in these territories is on a collision course with endangered species.  By bringing urbanization and conservation together in the same study, the essays, maps, data, and artwork in this Atlas lay essential groundwork for the future planning and design of hotspot cities and regions as interdependent ecological and economic systems.”

Some background on the project is found in both Précis which provides a roadmap to the site, as well as an essay “Atlas for the End?” which alludes to the first modern atlas of Ortelius, the Theatrum Orbis Terrarum (Epitome of the Theater of the World) and the dawn of a new, albeit already populated, world, ready for exploration and exploitation.  As mentioned: “In 1570, when Ortelius published his atlas, the European imagination could literally run wild with whatever might be ‘out there’. Now, a mere 450 years later, that vast, mysterious world of diverse peoples and species is completely colonized and irreversibly altered by the material and conceptual forces of modernity. Whereas Ortelius marked out modernity’s territorial beginnings, this atlas—by focusing on the remaining habitat in the world’s 36 biodiversity hotspots —rakes over its remains.”

The extensive essay lays a formidable foundation for the research, touching on the impacts of the past 450 years and the loss of biodiversity through urbanization, and the identification of hotspots, as well as how cities play a huge role.  As quoted:

“Although it is not yet well monitored, it is increasingly appreciated that the metabolism of the contemporary city, no matter how divorced it might feel, is interconnected with the sources and sinks of the broader landscape. It follows then that environmental stewardship is as much a matter of urban design as it is landscape ecology. As Herbert Giradet insists, it is in cities “that human destiny will be played out and where the future of the biosphere will be determined. There will be no sustainable world without sustainable cities”.7

The themes touch on the foundations of the shift towards the Anthropocene, and our changing ideas about nature, stewardship, and it’s relationship to the profession of landscape architecture, touching on McHarg’s environmental ethics of the 1960s and also discussing the work of biologist Daniel Janzen and work on restoration of biodiversity using a metaphor of the garden.  “Janzen’s ‘garden’ is not an idyllic scene constructed for contemplation, nor does it trade in images of pristine wilderness. Wildland “gardenification” as he refers to it, is just damn hard work. As Janzen explains, it involves “fencing, planting, fertilizing, tilling and weeding … bioremediation, reforestation, afforestation, fire control, proscribed burning, crowd control, biological control, reintroduction, mitigation and much more.”36 Janzen’s garden is a continual work in progress.”

The ideas continue in discussions on the role of protected and connected ecosystems, and metrics, in this case, using the Convention on Biological Diversity (CBD).  From the text: “The overarching framework for the project of protecting and reconstructing a biodiverse global landscape is provided by the United Nations Strategic Plan for Biodiversity 2011-2020. The key mechanisms of this plan are brokered and administered through the Convention on Biological Diversity (CBD), one of the three ‘Rio Conventions’ emerging from the UN Conference on Environment and Development (the ‘Earth Summit’) held in Rio de Janeiro in 1992. The primary objective of the CBD is that “[by] 2050, biodiversity is valued, conserved, restored and wisely used, maintaining ecosystem services, sustaining a healthy planet and delivering benefits essential for all people”.   To this end, the focus on hotspots provides a locus for where these values intersect globally, as represented with ideas of protection (and lack there of) and the ability to access massive quantities of data collected through remote sensing and being able to map it using available technologies (while cautioning against the objectivity of mapping as a practice).

A concluding essay “Atlas for the Beginning” talks about the shift to our new reality of the Anthropocene.  A globe view shows “What’s left: the world’s protected areas as of 2015” which illustrates a bleak view of the fragility of the worlds ecosystems.  The takeaway is a research agenda that includes more data and analysis, as well as developing methods of action, including a  “…longer term research agenda is to establish a knowledge sharing network of demonstration design projects across the hotspots which bring landscape architects, environmental planners, conservationists, economists and local communities together to focus on areas of conflict between biodiversity and development. These SEED (systemic, ecological and economic design) projects will show how landscape connectivity can be achieved and how urban growth can be directed in ways that support all forms of life.”

The use of data visualizations, or datascapes, allows for unique comprehensibility of issues, as seen above. “The datascapes show that if the global population were to live (in material terms) as contemporary Americans do, there would be a major discrepancy between levels of consumption and what the earth, according to today’s technologies, can reasonably provide.” One such visual on Carbon Forest (below) shows the theoretical sequestration potential and equivalent size of forest to accommodate current populations, or, in actual numbers, “The 216 billion metric tons of CO2 emitted by a hypothetical global population of 10 billion such Americans would require 9.9 trillion trees to sequester its emissions. 2

The series of world maps are both beautiful and informative, spanning a range of topics both physical and social… a wide array of topics.

Each comes with a short blurb and reference.  The map on Ecoregions is described as: “The World Wildlife Federation defines an ecoregion as “relatively large units of land or water containing a distinct assemblage of natural communities sharing a large majority of species, dynamics, and environmental conditions” 1. An ecoregion is a biome broken down even further. There are 867 ecoregions comprising the world’s terrestrial and marine ecology. Nearly half of the world’s terrestrial ecoregions (391) are within the hotspots.”

 

Another interesting subsection is a feature Flora & Fauna, with “the photography of Singaporean artist Zhao Renhui, Director of the Institute for Critical Zoologists, from his 2013 artwork Guide to the Flora and Fauna of the World 1. The guide presents a catalogue of curious creatures and life-forms that have evolved in often unexpected ways to cope with the stresses and pressures of a changed world.”  The species are both amazing and somewhat disturbing, such as the bionic AquaAdvantage salmon (below), “…a genetically modified salmon that can grow to its adult size in 16 to 18 months instead of three years. The AquaAdvantage salmon has been modified by an addition of a growth hormone regulating gene from a Pacific Chinook salmon and a promoter gene from an ocean pout.”

Read more on the project via this post on the ASLA Blog, as well as a relevant article by Weller from the innaugural issue of LA+ Journal, entitled ‘World Park

All images and text: © 2017 Richard J. Weller, Claire Hoch, and Chieh Huang, Atlas for the End of the World, http://atlas-for-the-end-of-the-world.com 


HEADER:   Hotspot Cities: cities of 300,000 or more people projected to sprawl into remnant habitat in the world’s biological hotspots

Today I picked up a copy of Richard Sennett’s new book ‘Building and Dwelling: Ethics for the City’. (Farrar, Straus and Giroux, April 2018).   From the website: “Building and Dwelling is the definitive statement on cities by the renowned public intellectual Richard Sennett. In this sweeping work, he traces the anguished relation between how cities are built and how people live in them, from ancient Athens to twenty-first-century Shanghai. He shows how Paris, Barcelona, and New York City assumed their modern forms; rethinks the reputations of Jane Jacobs, Lewis Mumford, and others; and takes us on a tour of emblematic contemporary locations, from the backstreets of Medellín, Colombia, to the Google headquarters in Manhattan. Through it all, he laments that the “closed city”—segregated, regimented, and controlled—has spread from the global North to the exploding urban agglomerations of the global South. As an alternative, he argues for the “open city,” where citizens actively hash out their differences and planners experiment with urban forms that make it easier for residents to cope. Rich with arguments that speak directly to our moment—a time when more humans live in urban spaces than ever before—Building and Dwelling draws on Sennett’s deep learning and intimate engagement with city life to form a bold and original vision for the future of cities.”

While the book aims to hit on a much broader range of topics that we typically cover, the first part resonated on the Hidden Hydrology front with some interesting analysis of the work of that prominent figure in the history, that of Joseph Bazalgette.  For a bit of a primer to the unfamiliar, check out this good post about Bazalgette as “Scientist of the Day” and also behold his amazing mustache below.

Sennett discusses this in Chapter 2, which looks at the evolution of cities in the mid-19th Century, which was a turning point for urbanization that was leading to overcrowding, pollution, and disease, many issues of which had been somewhat unprecedented in modern cities.  As he mentions, “Plague had always been a danger in cities — the Black Death wiped out a third of Europe in the late Middle Ages. As early modern cities became bigger and denser — and so more shit-and-urine filled — they became fertile gardens to feed rats and rat-borne disease.” (21)

Sennett mentions that the first actors in combating this trend were not doctors, but engineers.  Working to improve the quality of urban life, he mentions the ideas around paving of streets as a way to encourage cleaner urban areas, as well as the development of the pissoir  a simple yet seemingly necessary advance in urban sanitation.   The effect of these improvements were functional, but as Sennett points out, the ripple into more livable cities was a unique cross benefit.  As quoted:

“… a knock-on effect of removing shit and urine from the street was that it made the outdoors more usable as social space; the huge outdoor cafe fronting a boulevard was the sanitary engineer’s gift urban civilization.” (23)

The idea that engineering was the major driver for public health in the 19th century, and that it had the residual impact of creating better cities, was often “accidential and unintentional” as Sennett mentions, but often it did come with a direct purpose.  This action-oriented and experimental approach was best embodied by Joseph Bazalgette, and his engineers, working incrementally and often experimentally, invented technologies through trial-and-error:

“The engineers working for Joseph Bazalgette, for instance, when building London’s sewers in the 1850s to 1860s, invented such technology as solid-waste screens in the course of fitting sections of piping together, experimenting with several different filter designs, rather than knowing right away which size to use.  Bazalgette was what to do overall: the realm of the sewer — the realm of Les Miserables — had to be made into a network of pipes mirroring the streets above.”  (24)

The concept of experimentation was an interesting point, as he “often built sewers with pipes larger in diameter than seemed to be needed, saying that planning could not predict future needs,” (24) and as Sennett contends, “One of the truly admirable aspects of Bazalgette’s character is that he exuded Victorian confidence without claiming that he knew exactly what he was doing, believing only that he would get it right in the end.  This is more largely true of civil engineers in the city at the time; their technical knowledge was open-ended.” (25)

The simplified version of the Bazalgette plan shows the series of cross connected interceptors that are all funnelling pollution away from the Thames.

The other element brought up, which deserves more thinking is the “…experimental process required the engineer-urbanist to develop new visual tools,” and that “the messy compound forms along a dense, disordered street requires a different means of representation” (24).

Classical techniques such as plan and section worked to build the infrastructure, as seen above, however they failed to work to communicate concepts as “the infrastructures the engineers were building below ground were invisible” (25).

An image I did find that hints at these new techniques, via the Linda Hall Library, shows the use of cutaway section-perspective to outline the multiple layers of surface and subsurface systems working in tandem.

While I don’t purely think that Bazalgette was motivated by anything beyond doing the right thing, I think the idea of ‘what was the right thing?’ is perhaps the bigger question.  The fact that this ‘modernization’ is often times purely reflected as only a positive move, rubs me the wrong way, as it discounts all the other impacts.  Maybe there was a lack of understanding or lack of imagination at the time, and that burying urban rivers, creeks and streams was the only means available to solve the issues of pestilence, smells, and disease.

The implications, in London, but also world-wide, as these approaches were copies and applied often elsewhere around the globe, had such massive ecological consequences on the hydrology of cities that is, without hyperbole, impossible to reverse. A river or creek sacrificed into a pipe is not the same as a more holistic plan understood and valued the myriad benefits of urban streams and saved these waterways while protecting public health. Sennett’s take that the engineers, as mentioned in the photo caption “Joseph Bazalgette, the finest engineering of the modern city…” (Fig. 1) were saviors and their focus on public health saved many lives is indisputable.  But the cult of this benefit misleads about the cost, and it would be great to counterpoint this message with the worldwide implications of what he and many future engineers wrought on the urban ecology everywhere.

 


HEADER:  London Sewer Plan Map from 1882 – via Wikipedia 

An email from a reader of the site posed a few interesting questions about the two small lakes in the northern sections of Seattle, specifically discussing the current and historical outflows of these lakes.  I’ve discussed the small lakes in brief here, related maps of their bathymetry and tangentially in the context of Licton Springs. However, this was a good instigation to to focus on some more specifics of these urban water bodies.  I will refrain from my tendency to write another way-too-long post (of which this will inevitably turn into) and parcel this out in a few shorter ones, the first focusing on drainage questions (of which these are all connected) and then individual posts on Haller Lake, Bitter Lake, and Green Lake, as they are important parts of the hydrological history of Seattle.

To understand the overall configuration of water in Seattle, I did find this document by Seattle Public Utilities (SPU) titled ‘City of Seattle State of the Waters 2007‘. The first volume covers Seattle Watercourses, (which we will probably return to in the future), and in particular for our purposes here we look to Volume II: Seattle Small Lakes’  (both links above go to the PDFs – as I couldn’t find a page with a direct link) and it sounds like a great resource in need of an update.

For some general contents, a bit on lakes in general and their outfalls, from Vol. II, p.3:  “Lakes receive inflow from their surrounding watersheds through rivers, watercourses, overland and subsurface flow, and — in developed areas — from drainage pipes. Water typically exists a lake through a watercourse or river, although the outflows of most lakes in Seattle have been channeled into constructed drainage systems.”

HISTORIC DRAINAGE

In general, all three lakes are formed from Vashon glaciation, and as I mentioned previously, per geologist Stan Chernicoff, both Bitter and Haller lakes would be considered true kettle lakes, and Green Lake a hybrid, although still formed by glaciation.  The 1850s map locates the three Lakes, all of which are in the north portion of Seattle, but doesn’t offer too much in terms of drainage direction, aside from implying proximity between Thornton Creek drainage for Haller Lake, and Bitter Lake likely draining west due to proximity, neither show a visible outfall creek.

Green Lake it’s more obvious, with multiple inflows, including Licton Springs Creek, and the very distinct outflow that drains through Ravenna Creek southeast into Union Bay.

The 1894 USGS map offers us the aid of topography, along with a bit more more comprehensive creek coverage. Bitter Lake hints at the possibility of outfalls either direction, heading to the northwest down to ravines that skirt The Highlands and the Seattle Golf Club and outlet near Spring Beach, and also draining southeast towards a seasonal drainage. Haller Lake (titled Welsh Lake on the map) also has no visible outfall as well, but adjacent creeks that are part of Thornton Creek drainage nearby, and a wetland area to the south make me infer that these  would be like to be the natural drainage course of the lake.

Green Lake’s hydrology is a lot simpler to discern, with the similar inputs and outputs via the Ravenna outlet to the wetland zones near University Village and outlets into Union Bay.

TWO ALTERNATIVE THEORIES ON HISTORICAL DRAINAGE

One part I’ve always been a bit skeptical about in the USGS map is the location and extent of the drainage from Thornton Creek that looks to curve way west and intercept any south flow from the Bitter and Haller Lakes and direct it to the east to the larger Thornton Creek Basin.  Licton Springs Creek also flows south, and is in reality much further north than shown on maps, and the interface between the two basins if filled with springs and wetlands, so it’s likely there could have been some disconnect between what was there flowing south, and what was mapped flowing east.  However,  Alternative 1 uses the basis of the map as the correct flowline, so shows both Bitter Lake and Haller Lake draining towards a seasonal creek and wetland that exists in the South Branch of Thornton Creek, and a smaller drainage picking up Licton Springs Creek draining into Green Lake.  This mapped, overlaid on the 1894 map, shows an option for the lakes draining east, into Lake Washington. Dashed lines, for reference, are really basic watershed delineations, and the arrows show flow from lakes.

My gut is that both lakes flowed into Green Lake, via Licton Springs Creek, and then continued out to Ravenna.  Alternative 2 looks at a version of this where there is more of a distinct ridgeline separation between the Thornton Creek Basin and the drainage that flows north south, and that the survey misinterpreted the flowline that heads towards the east due to the aforementioned springs and wetlands.  The fact that the Licton Springs Creek is much further north than mapped, makes me posit that the upper lakes drained to this transfer point, and that instead of falling east, the flows kept going south into Green Lake, via the Licton Springs. Overlaid on the modern topography gives a bit of context to this configuration.

Both of these options are plausible, and the current outflows of the lakes (seen below) support this, with Bitter Lake draining to the Southeast and Haller Lake draining West.  This at least gives us the indication that these both flowed to the low north/south valley (where current Highway 99/Aurora Avenue runs), however, where they go after is still a bit of a mystery. My follow-up plan is to look at some Lidar or a DEM to provide a much clearer picture of the flowlines and ridgelines, which we can assume, much like the current topo, is mostly similar to its predevelopment configurations (i.e. places in Seattle where we didn’t move hills).  This will go beyond this back of the napkin approach above and see if that higher degree of detail unlocks any new info.

CURRENT DRAINAGE
While it’s hard to determine the exact nature of pre-development drainage on these lakes, we can infer much from these historic documents and topography.  The current system is more clear, although not visibly inherent due to the modernization and piping of drainage through large intercepter sewers – in this case the Densmore Avenue Drainage System, which runs north/south around the low flowline at Aurora Avenue (Highway 99).

The first hint of the split of drainage is in the State of the Waters, where both Bitter Lake and Haller Lake fall outside of their adjacent drainages going west to Piper’s Creek and east to Thornton Creek.  Figure 1 from the report shows a narrow band that is bisected by this linear north south zone, with both creeks located inside the boundary.

A search for the nature of this basin configuration is somewhat frustrating, mostly as it seems to be specifically not related to a creek so isn’t referenced as a watershed in the same way.  The SPU site on Urban Watersheds breaks down the city into four distinct areas of drainage, including the Puget Sound, Lake Washington, and the Duwamish River, as well as this uniquely land-locked zone we’re focused on, known as the Ship Canal/Lake Union basin

This is subdivided into some smaller sub-basins,including the Ship Canal Basin, the South Lake Union, and our zone, the North Lake Union Basin, which stretches up to the northern lakes, in that same narrow band, encompassing their drainages, then around Green Lake, and south to the interface with Lake Union.

The specific acrobatics that the Densmore Basin does to get down to Lake Union is hinted at but there’s not a lot of great maps, in particular the last section which .  This excerpt from the Seattle Comprehensive Plan Update Draft EIS from May 4, 2015 shows the ‘capacity constrained’ condition. but does highlight the basin and it’s

I dug a bit more and found another mystifyingly badly interfaced GIS portal, this time Drainage Basins layer from City of Seattle, embedded below.  Again, need to download the data and have a bit more freedom to sort it out in order to display it in a better way, but you get the idea from this map (especially if you zoom in on the areas below Green Lake, and can see the basin outline snaking in a thin, gerrymandered strip beside I-5.

 

The lakes themselves fit within the infrastructure systems, as seen below.  The City of Seattle Water and Sewer Map , which I thought would be helpful but really isn’t because you have to zoom way in to show pipes and so lose context, so it  doesn’t clearly articulate the drainage system elements enough to isolate (i included a few screenshots), so probably need to get some GIS files to draw these and separate mains, branches, etc. to isolate systems, but the narratives are pretty clear in explaining the outfall scenarios.

Haller Lake, which is around 15 acres of drainage, and has a maximum depth of 36 feet, get’s inputs from adjacent residential drainage areas (280 acre drainage), now drains via the Densmore system, as mentioned in State of the Waters, Vol II, the lake “…discharges through an outlet control structure on the western side of the lake, eventually draining to Lake Union via the Densmore storm drain system.”

Bitter Lake, measures 18.4 acres with a max depth of 31 feet, draining a smaller area (159 acre drainage). This lake is also being drained into the Densmore system, from the State of the Waters, Vol II, page 25: “At its southeastern end, Bitter Lake drains through a piped outlet that runs through a series of small ditches and culverts before entering the Densmore storm drain system on Aurora Avenue North.  The Densmore system is equipped with a low-flow bypass, which conveys runoff directly to Lake Union. Under high-flow conditions, runoff passes through Green Lake before discharging to Lake Union.”

Green Lake, has a surface area of 259 acres, and a shallow depth, maxing out at around 30 feet, drains a basin of 1875 acres of surrounding area, as well as getting inputs from the Densmore system, as mentioned above.  Alas, it now no longer drains into Ravenna Creek, but is diverted, per the State of the Waters, Vol II, and“now discharges to Lake Union through a single outlet located near Meridian Avenue North.  In the past, Green Lake also discharged to the combined sewer system via a number of outlets around the lake. However, these outlets were recently blocked and now are used by Seattle Parks and Recreation only during rainstorms of long duration when the Meridian Avenue North outlet is not adequate to maintain water levels in Green lake.”

 


HEADER: Haller Lake from above – via Windemere

 

 

A recent announcement that the Department of Interior is planning a massive reorganization has received a bunch of attention.  While Secretary Zinke has done a number of dubious things in his short time at Interior, this one at least, having some origins based on the concepts of John Wesley Powell, initially made me pause to consider if it may have merit.  If you can stomach watching Zinke talk for over five minutes, the video from DOI explaining the move is here. Or you can read this, where I first read about the concept, via an article Outside Magazine:  “Ryan Zinke’s Watershed Plan Is 140 Years Too Late”  To summarize the background:

“The latest object of the interior secretary’s affection is John Wesley Powell. A Civil War veteran who lost his right arm at the Battle of Shiloh, Powell is best known as a geologist and geographer who led expeditions in the American Southwest, including the first documented float down Grand Canyon. Those travels inspired Powell, in an 1878 report, to recommend the West be settled in a fashion that would organize the desiccated territory by watershed. Doing so, he argued, would make for a more collaborative and ecologically sound way of managing resources, especially in a region where the most precious resource is water. “

This basin map, seen below from an old NPR story about “The Vision of John Wesley Powell“, shows the “Map of the Arid Region of the United States showing drainage districts, 1890-91”, which is the impetus mentioned by Zinke, and explained per the article: “In 1878, Powell published his Report on the Lands of the Arid Region, which laid out a concrete strategy for settling the West without fighting over scarce water. Powell wanted to stall the waves of homesteaders moving across the plains and mountains. Instead, he wanted to plan settlement based in part on the cooperative model practiced in Utah by Mormon settlers, who tapped mountain snowmelt and the streams, lakes and rivers it created with irrigation ditches leading to crops. Powell wanted to organize settlements around water and watersheds, which would force water users to conserve the scarce resource, because overuse or pollution would hurt everyone in the watershed. Powell believed this arrangement would also make communities better prepared to deal with attempts to usurp their water.”

While some see it as pure politics, and view it with skepticism, others acknowledge some merit. Per Outside: ““Intellectually, the idea of organizing more in terms of the landscape in the West—that works,” says John Freemuth, executive director of the Cecil D. Andrus Center for Public Policy at Boise State University. “But the devil is in the details. The damage that could be done to relationships and how agencies do business, that doesn’t look like it’s been well thought out yet.”  There is mention of the complications of the current water system, where far away water is transported hundreds of miles to other locations, which perhaps makes basin boundaries obsolete, and is antithetical, in essence to Powell’s original notions, (thus the ‘too late’ tagline). As mentioned. ““For Powell, the water would not be taken out of the watershed or out of the basin and transferred across mountains…hundreds of miles away to allow urban growth to take place,” Donald Worster, a Powell biographer, told NPR in 2003. “So L.A., if it existed at all, would have been a much, much smaller entity. Salt Lake City would be smaller. Phoenix would probably not even exist.”

The Washington Post also weighed in, mentioning on January 10th the “Interior plans to move thousands of workers in the biggest reorganization in its history”, and some of the implications of “the largest reorganization in the department’s 168-year history, moving to shift tens of thousands of workers to new locations and change the way the federal government manages more than 500 million acres of land and water across the country.”  In short, the “…proposal would divide the United States into 13 regions and centralize authority for different parts of Interior within those boundaries. The regions would be defined by watersheds and geographic basins, rather than individual states and the current boundaries that now guide Interior’s operations”.

Skeptics are probably right to wonder if this is an effective change, but some of the criticism of it being hard to do, moving offices, costs, issues like splitting states into two zones sort of miss the point, if the goal is a broad basin-specific planning mechanism.  The concept that there’s a political agenda is obvious, and some of the talk of this being a covert way of downsizing government and eroding the mission are valid.  Other criticisms, such as removal of Bureau of Indian Affairs offices, as mentioned in the article are more troubling.  As quoted: “This proposal is concerning because it appears to eliminate the Navajo Regional Office of the Bureau of Indian Affairs,” said  Sen. Martin Heinrich (D-N.M.). “A change of this magnitude should only come after extensive, meaningful government-to-government consultation with the affected tribes.  On its face, this looks more like a dismantling than a reorganization.”

Environmental groups as well echo the idea that it may seem ok on the surface, but is at it’s root political.  As quoted: ““A regional approach to managing Interior might indeed make sense, but the jury is out on this reorganization,” Sharon Buccino, senior director for lands at the Natural Resources Defense Council, said in an email. “Virtually everything Secretary Zinke has done to date has been to advance fossil fuel interests — above the stewardship of our public lands, preservation of wildlife and protection of clean air and water.””

It’s dubious whether this would happen, but there’s some intriguing notions it brings up, perhaps in a less divisive political climate, as to where this could actually be beneficial.  The Washington Post article linked to the overlay of current bureau configurations and the proposed idea of ‘Common Regions’, as mentioned.  The patchwork of overlaid jurisdictional boundaries would obviously be a change, but fundamentally there’s some wisdom (perhaps Powell’s wisdom) at work in thinking about this

Whether it goes anywhere is dubious, as it’s an interesting idea wrapped up in massive government reorganization that brings with it so much baggage as to sink it before it starts. As Outside concludes, “Perhaps it’s best to think of Zinke’s watershed-based West as a thought experiment.”   Or possibly, it’s a question of being too soon, and that a more thought-out approach could possibly be implemented over the course of the next decade to address concerns but keep it from just being that unrealized concept.

BEYOND POLITICS

I’ve long been a proponent of the concept of transforming political boundaries more in line with hydrological ones, as the idea of connecting choices made with the impacts to watersheds, first presenting the concept in a presentation at the 2006 National ASLA Conference.  The genesis of the idea is the that these basins and watersheds are nested systems, with larger units encompassing many smaller elements, and in turn being encompassed by larger systems. The idea of neighborsheds (i.e. neighborhood watersheds) involve a small scale redrawing our local boundaries using subwatersheds instead of arbitrary street or orthagonal boundaries that we currently employ.  This provides an opportunity to reimagine our local places in alignment with nature, and also helps residents understand their place at a scale that is knowable.  The connection to local flows provides a context, and the nesting systems allow one to link thier actions to the larger whole.

There are some obvious organizational structures in place that adopt this nested, such as the idea of USGS Hydrologic Units (HU) that organize elements like the Watershed Boundaries used in the National Hydrography Database.  The map below shows the largest resolution, the regional scale, of which there are 21 in the United States, know by a system of codes, or HUCs.

Some info via a really good page on Wikipedia on Hydrological Codes, this scales down from the original 21 regional HUs, to 222 subregions, 370 basins, 2,200 subbasins, 22,000 watersheds and around 160,000 subwatersheds.   The range in scale is also interesting, with a Region averaging a size of approximately 177,560 square miles, a typical basin spanning 10,000 square miles, down to 220 square mile watersheds and 40 square mile subwatersheds.  The Pacific Northwest is HU-17 expands to grab most of the Columbia River basin flowing west from the Rocky Mountains (which also reaches far up into Canada but is not shown on this map).

This breakdown the the nested scales provides a nice summary of that breakdown.

 

The Water Resource Inventory Area (WRIA) structure in Washington is an extension of this idea as well, with the ability to delineate a watershed focus on conservation. An image of WRIA boundaries overlaid with county lines in Washington State is instructive as to the difference between political lines drawn.

These denote the smallest HU scale of subwatershed, which as we discussed are around 40 square miles each, which is still rather large, but at least somewhat more comprehensible than larger basins. The WRIAs for the Puget Sound show the very organic structure of basin-focused districts (which is also the final scale of the Hydrological Unit map showing Subwatersheds), with the only hard-line in this case being the Canadian border to the north.

An zoomed into the smaller scale around Seattle, the two districts include WRIA 8, the Lake Washington and the Cedar River Basin, which encompasses much of the City, and the WRIA 9, the Duwamish-Green River Basin which drains the south segment of the city.  While it may complicate things as a current city and a county boundaries and require some intergovernmental agreements from many parties, the ability to isolate hydrological areas makes planning for these watersheds in terms of impacts to ecosystems much easier.  In some sense these could be a reimagined county structure by these subwatersheds, which isn’t actually a bad idea, if only as a though experiment.


The nesting could continue infinitely and get down unit you get to the smallest drainage, which could encompass a few blocks in the city.  More on this to comes as I continue to expand on the neighborshed concept. While the politicized proposal from Interior seems doomed to failure, there is some merit to these types of proposals that transcend politics and assess the concept of watershed specific boundaries in terms of thinking outside the box, and inside the basin.


HEADER:  Image of Powell’s Arid Lands Map – via Outside Magazine

 

 

As I alluded to in the previous post on smaller lakes, the large Seattle lakes provide the form and contribute to the overall sense of place. River cities are shaped differently than coastal and lake cities, and the relationship with water differs due to this morphology. In either case, any urban waterway will exist in balance with many factors of urbanization, industrialization, influencing the ecological and social connections between hydrological and other systems.

In addition, because these larger water bodies exist in tandem with anthropocentric activities, they accumulate a mix of the odd and off-beat. And while I was excited about the idea of “Searching for the Mystery Sharks of Seattle”, those particular mysteries ended up a bit further outside the realm of our local water bodies. However, in Seattle, there is still evidence of some strange things in both Lake Washington and Lake Union, worth a bit of exploration.

LAKE UNION

Starting with Lake Union, which seems to have a bit less info, this article from Seattle Magazine from 2013, “Unlocking Lake Union’s waterlogged secrets — one sunken treasure at a time” is a good overview of some of the exploration.

One endeavor is the Center for Wooden Boats and their Underwater Archeology Project, starting in 2008. A good overview of this is the form of a post from 2011 by Dick Wagner “Beneath the Waters” recounts some of the finds, including a range of boats from back into the 1880s, as well as cars, motorcycles and even a Vespa scooter.

A video ‘Shipwrecks of Lake Union: Seattle’s Hidden History” the explorations from 2012:  “This short video documents the Lake Union underwater archaeology project that The Center for Wooden Boats Founding Director Dick Wagner has been helping lead for the last several years. CWB is working with the UW’s Burke Museum, The State Department of Ecology, and others to locate and document vessels and other historic artifacts. Using the latest in underwater technology, divers and amateur archaeologists have been scouring the 40-foot-deep lake, looking at more spots where sunken vessels lie.”

The Lake Union Virtual Museum also has a nice map of a few of the wrecks on their site, clickable with some photos of some of the 100s of wrecks in the lakes (go to the link to interact)

The wreck of the J.E. Boyden, which is one of the finds of the Underwater Archaeology Project above, is located in the south part of the lake, “One of the oldest and best documented wrecks in Lake Union, the J.E. Boyden was built in 1888 and has been on the lake bottom since 1935.”

The Global Underwater Explorers Seattle group, which educates divers.  From their site:  “our exploration projects will have the ultimate goal of gathering consistent observational data and documenting the degradation or appreciation of our submerged resources over time.  Through data analysis, we aim to drive policy-changing efforts to conserve, protect and create public awareness for our submerged resources”  They also maintain Project Baseline, which is an interactive online map which displays bathymetry of Lake Union and Washington, with documentation of these wrecks as well as unknown and unexplored underway element.  The Lake Union area in whole, which also shows the lake to be quite shallow, maxing out at about 40 feet at the deepest points.

A zoom in on the south section offers some interesting underwater topography, and the information about the Boyden, with a pop-up of info.  Go to the map and check it out and you can see the distinct shape of the boat on the surface.

There’s definitely some novelty to the concept of shipwrecks, and the information appeals to a certain geeky longing that seems visceral to the water.  As summed in the Seattle Magazine article there’s more to it that that:

“The effort to record these old wrecks is not simply a matter for scuba heads or boat geeks. Lake Union is the heart of Seattle’s maritime origins; filling in the story of its transformation from a pristine natural lake to a center for industry (including sawmills, brick making and boatbuilding) to a recreation hub through photos and film is of tremendous value.”

LAKE WASHINGTON

As for Lake Washington, the significantly larger water body, it doesn’t take much digging to uncover a range of good stories and mysteries.  A 2014 KUOW Story is a good starting point: “What’s On The Botton of Lake Washington? Planes, Trains And…” hints at the diversity of subsurface elements, including planes “ Lake Washington is like a treasure trove for old plane wrecks. There are at least seven at the bottom of the Lake. They’re a frozen piece of our wartime history, a time when mock air battles raged over these waters. Midair collisions would send airplanes crashing into the lake.”

SHIPS

One there’s no shortage of, much like Lake Union, are ships, many of them either lost in accidents, or purposely scuttled.  Per the KUOW story, “…there are about 400 boats beneath the surface: ferries, barges, three Navy minesweepers, mostly in the shallower waters off Kirkland, where the Lake Washington Shipyards used to be. Now, it’s a graveyard for wrecked boats. “These are full-on, full-sized ferries on the bottom, right underneath all the yachts that are parked there now,” said diver Ben Griner, also aboard.  As for the minesweepers, one day they were docked, the next they were gone.”

For as long as there’s been water and something staring into its depths, there’s been the desire to dive in and see what’s underneath.  Overlapping with the Global Underwater Explorers (GUE Seattle), is the Maritime Documentation Society, (link is to Facebook, as their original link is bad) is one of those groups that do this on a regular basis, with a mission.  From their page, it is focused on  “exploration and documentation of existing, undiscovered, and natural historic shipwrecks. Our goal is to create public awareness and expand the wealth of history for present and future generations.”  

Some good videos are also found via DCS Films, which is ‘Dedicated to Advanced Technical Diving and Underwater Cinematography’ is a good resource to see what its like submarine, and they have some info on Lake Washington Relics.  A clip from a story from “KCPQ 13 on the artifacts of Lake Washington A joint effort of the Maritime Documentation Society, DCS Films, and GUE Seattle” offers a bit of the footage.

Similarly the afforementioned GUE-Seattle has some great info about explorations on their blog, along with the maps shown before.  Some of the stories of the dives are a fun read, to understand that equipped with a bit of info such as a general location and some scans, the fun is in exploration.  One such as this exploration of LW250, an unknown object, seen here in the bathymetric view.

And the interesting perspective of the side sonar imagery, seen below.

From the post: “We found a well-preserved wooden sailboat in good condition and it was a pleasure exploring it. As is true with most fish stories and dive stories, this was the most spectacular boat even found. It had a hole in the deck with treasures of very old bottles, ledgers of misplaced bank funds, police ID badges, a revolver, and an attaché case chained to the railing…..actually it had none of that, but it was as exciting as if it did. Just to be there on this boat that no one had ever seen was thrilling. The boat actually had a Washington state registration number and the last year sticker on the side was 1983.”

A snip of the GUE-Seattle Bathymetry shows part of the Lake (it’s a really big lake) showing a range of underwater explorations, and also the relative depths, as you see see beyond the east side tidal zones, the edge of Lake washington falls off sharply from the Seattle shoreline (on the left side of the map).

And while the shipwrecks are cool, I’m really fascinated with the bathymetric info as an interesting exploration of hidden hydrology that goes beyond creeks and rivers – especially as there was so much manipulation of the Lake levels amidst the re-plumbining of the entire region, this information provides some great clues to a history unique to a lake-shaped city.

AN UNDERWATER FOREST

My interest in this topic in general was piqued by the May 2011 KUOW story “The spooky, underwater forests of Lake Washington and Lake Sammamish”, which describes 1000 year old forests off the edges of areas of both lakes. Remnants of an 1100 year old seismic event, areas of these forests were discovered   The caption helps explain this image : ” This image is a close up of the standing timber on the south end of Mercer Island. The image is generated using a side scan sonar towed behind a boat about 20 feet off the bottom. The trees are visible mostly from the shadows they cast.

There was a video I do recall seeing, but all the links now seem to be gone.  It was bit disorienting, so aside from a glimpse of something tree-like, it was alot of darkness and blurriness, which makes one thin.  Ben Griner of Coastal Sensing who explored the Lake via sonar and underwater is, quoted in the story “…describes the drowned trees off the southern coast of Mercer Island as a thrill to swim through (although he gets not everyone would see it that way). “It’s certainly a disorienting dive,” he said. “A lot of people call it really freaky. Other people describe it as exciting and interesting.” The lake is pitch black at that depth — and being underwater can mess with one’s sense of movement. Griner said it’s sometimes difficult to tell if the water is moving or he is, and divers often bump into things.  “Because of how long the forest has been under water and how busy the lake is, most trees are just the trunks now,” he said. “It can be a little creepy, but it’s really fun to swim through the trees.”

 

From the Wikipedia page, the location of the underwater forests are located in yellow, adjacent to Mercer Island to the south, and another segment.  Per the page, the earthquake from around 900 C.E. created “The landslides on heavily wooded land created “bizarre submerged forests” of old-growth timber, preserved by the cool water and low oxygen in the deep lake.[1][5] These sunken forests were known to early European settlers of the Seattle area, for whom the snags could be a hazard to ships on the lake, and as early as 1919, nearly 200 of the sunken trees had been removed from depths of 65–132 feet (20–40 m)”

David Williams, who does his usual engagingly thorough job of discussing this topic back in 2014 on a post “What Lies Beneath – the Secrets of Lake Washington” discusses ships, and these Submerged Forests as well, explaining a chapter in the story (also mentioned in the KUOW story).

“Mostly forgotten, the trees merited public attention in the 1990s. In 1994, John Tortorelli was caught salvaging wood from the submerged forests. Unfortunately for him the state Department of Natural Resources owns the trees, plus he damaged an underwater sewer line. Found guilty of three counts of theft and three of trafficking in stolen property, Tortorelli received a jail term of three and a half years”

The post includes this map, highlighting the locations of the souther sections identified above.

COAL CAR ENDNOTE

As many discussed the other submerged worlds of ships and forests, both the KUOW article and David Williams mention coal cars on the bottom of the Lake as well.  Williams elaborates on the the eastside coal connection, which saw  a constant stream of “… coal was loaded on railroad cars at Newcastle and lowered 900 feet by tram to Lake Washington, where the cars traveled on a barge to Union Bay and then on a tram over the narrow neck of land now crossed by SR-520. A second barge carried the coal cars across Lake Union to a train (Seattle’s first) that carried the coal its final mile to a final tram, which lowered the ore down to a massive coal bunker at the base of Pike Street. It was on one of these trips across Lake Washington that the barge dropped its load of coal cars now sitting at the bottom of the lake.”  

With that frequency, the accident was bound to happen. To verify this concept, a cool shot from Coastal Sensing shows the scattered remains of perhaps these same “Coal Cars in Lake Washington Seattle.  Lost in a storm while transporting coal from Coal Creek to the small city of Seattle.” (read more about this here).


HEADER: Lake Union and Lake Washington Bathymetry – via GUE-Seattle Project Baseline Map

There are some that shape Seattle, including Lake Washington to the east (see above header image), a massive 21,500 acres of lake area and a max depth of 214 feet, draining a watershed of over 550 square miles and defines the entire inland edge of the city.  In the medium size category is centrally located Lake Union, (below) which encompasses 580 acres, a max depth of 50 ft, and a similarly larger watershed.  These, along with the Salish Sea to the west, and the Ship Canal and locks, literally form the hourglass shape of the City of Seattle and make up much of the story of the city in terms of water.

Nautical charts aside, we will have plenty more to come on these in terms of history and form, as well as some new efforts that have unlocked some mysteries hidden in their depths.  For now, In addition to these large lakes, there are a number of small lakes that dot the landscape, remnants of the glacial action, namely in the form of kettle ponds. King County has a site for Lakes Data and Descriptions, which includes both, but of particular interest is the page for Small Lakes Data and Info, which allows access to information on these lake, including some simple yet compelling bathymetric maps.   Green Lake falls into the small lake category (and also has been plagued with water quality issues.  The bathymetry shows the current shoreline, which has a lake surface of 259 acres with a contributing watershed (although no contributing streams anymore) of 1875 acres.

For a slightly different visual,this 1938 W.P.A Sanitary Survey map (via the Seattle Municipal Archives page) shows a color coded look “Showing Depth Contours of Green Lake as of 1936”.

Those familiar with the story will know that the shoreline of the lake was changed a bit around the turn of the 20th century, and the addition of the waterfowl named island by said WPA also was not an original, but more on the historic manipulation of the shoreline of Green Lake at a future date.

For now, another interesting resource on the King County Lake site charting of various lake metrics, including water quality.  As I mentioned, water quality issues, mostly in the form of toxic algae growth, have been problematic in Green Lake, with a peak issue in 2013 and a spike in 2016   Some historical data shows the situation in 2016, which shows a spike in Chlorphyll-a, which is an indicator of algae growth, and subsequent nutrient and temperature charts.

The smaller lakes in North Seattle also appear, including the smallest (yet deepest) Haller Lake, which has a surface are of 15 acres, with a max depth of 36 feet.

Bitter Lake has a surface area of 19 acres with a depth up to 31 feet.

 

 

Both are probably similar in size today as they were in the 1800s, based on the historical maps.  The land uses and while the land use has changed, also probably have similar catchment zones.  Maps on the site outline these watersheds, for instance the 331 acre drainage of the lake.  As mentioned on the site: “This map shows the area of the watershed relative to the area of the lake. Generally speaking, the larger a watershed is relative to a lake, the greater the influence land use practices on lake water quality.”

An interesting tidbit on this was discovering the amazing Lakes of Washington by Ernest E. Walcott published in the early 1960s which was the basis for much of the bathymetric info included on the King County site and other resources.  I’ll expand on at a later date, but in that vein, while outside of the city proper, the range of bathymetric maps, so I snipped a few pages out of this document, which includes lakes in King County that are part of the Lake Stewardship Program – just for a flavor of different lake forms in comparison (at least formally, as they do vary in scale) – all of which are derived from the work of Wolcott.

And if you still need your Lake Washington bathymetry fix, one I did find, for the more artistic (or looking for a gift for that special map nerd) are these fun wood fun maps (found amongst other local and national water bodies) sold on Etsy by ‘Beneath the Sail’

 


HEADER: Nautical Chart of Lake Washington

So much London – and time to wrap up the comprehensive overview and move on to other things.  For the last post, similar to New York, I’ve compiled a fun summary of the maps, depicting hidden hydrology and others, that existing in London.  Some maps and mapping projects have already been discussed in the previous posts, either in the plethora of books, as well as some of the art & explorations.  The article from the Londonist entitled “The Best Old Maps of London” is a good starting point, which highlights the quintessential map, John Roque’s map of 1746

Close ups reveal the detail of this map, which is widely cited as a resource of locating lost rivers.  For locating these historic maps, there’s no better resource that Locating London’s Past, which “This website allows you to search a wide body of digital resources relating to early modern and eighteenth-century London, and to map the results on to a fully GIS compliant version of John Rocque’s 1746 map.”

Going back a bit is a great Agas Map depicting “Civitas Londinum is a bird’s-eye view of London first printed from woodblocks in about 1561. Widely known as the “Agas map,” from a spurious attribution to surveyor Ralph Agas (c.1540-1621), the map offers a richly detailed view both of the buildings and streets of the city and of its environment. No copies survive from 1561, but a modified version was printed in 1633…”   An online version of the map, offers the ability to zoom in and highlight specific features.  An excerpt of the map shows the level of detail (and lots of boats).

And while not a historical map, this creation and update by the Londonist of Anglo-Saxon London take us in a time-machine “…showing the London area in Anglo Saxon times (roughly speaking, 500-1066AD). It’s pieced together from many resources, showing our guess at the roads, rivers, forests and marshland that characterised the region. The main purpose was to highlight the many villages, hamlets and farmsteads whose names are still part of modern London.”  A snipped below shows the idea, and a high-res download is also available.
And similarly illustrative, I really love this sketch (although I’ve yet to find what it is from) from a Twitter post by Poly-Olbion, captioned “Where the Thames and the Isis marry.”  Anyone help me out on a source, would be grateful.
A post on “London Maps You Should Know” from the London Historians’ Blog, has a long list of additional historic maps, including another old one, coming soon after the Agas map, by the Civitates Orbis Terrarum I by  Braun and Hogenberg depicts London circa 1560, published first in 1572.
The London Sound Survey has tons of great resources including their Sound maps, as well as amazing historical maps of London.  The 1849 Cruchley map has a pleasing aesthetic, as seen below:
This one via JF Ptak Science Books, is of “A Great Map of the “Other” London Underground: the Sewer System, 1990“, which shows the snarl of underground and some great history. “The map appears in the Report of the Results of an Examination Made in 1880 of Several Sewerage Works in Europe, by Rudolph Hering, in the Annual Report of the National Board of Health 1881 (Washington: Government Printing Office, 1882), pp. 99-223.”

A fun and more clear version is this map Underground London, which does include items like “Underground River” and Sewer, takes a different graphical style.  “This light-hearted map, originally produced for Heritage magazine, charts the secrets under London’s streets in the style of Frank Beck’s famous tube map. It has since been taken up by Metro, the Independent on Sunday and thetube.com.  Illustrative rather than definitive, it includes the (now-closed) Post Office Railway, a selection of the capital’s buried rivers, Joseph Bazalgette’s sewer system and some of the curiosities of the Northern Line. In a similar style is a Beck-style map of London’s canals and navigable rivers, currently not publically available pending discussions between British Waterways and Transport for London.”

The hand-drawn versions are also fun, including this one of the Fleet River, via Londonist, shows a version involved “…a bit of research to trace the path of the lost River Fleet as it meanders under the streets of London. As you can see the map is completely hand drawn in pencil as well as the street indicators. The river is indicated by the rubbed out streets.”

As I’ve mentioned previously, the aerial perspectives are fun, and this on from the British Library of a “Balloon View of London, from the North” from 1851 provides a nice snapshot of the rapidly industrializing city.

Other locations for online maps come in a diversity of sources, including Subterranea Britannica,  Layers of London,  from the National Library of Scotland, (NLS) In the broader context, the Ordnance Survey (OS) is a great resource for modern and historic maps, and also check their GB1900 site that is an effort to “We need help in collecting all the names of places and features in Britain from the Ordnance Survey’s six-inch to a mile maps of around 1900”.  A version of London here from the NLS site, shows a highly detailed OS map from 1888-1913 timeframe, and below a 1:25000 version from the 1937-1961 range, depicting a similar level of detail as USGS maps.

And the realm of climate change would not be complete without one of Jeffrey Linn’s Spatialities view of sea-level rise inundated transformation of the Thames into “London Bay”.

A few outside the realm of hidden hydrology, but worth a reference, you can read about British maps and map-makers    as well as check out some other maps.  An interesting initiative for London National Park City, which is an interesting endeavor that hits on corridors and green spaces.  Some background via Geographical “‘The only difference really between a national park and a national park city,’ explains Daniel Raven-Ellison, Chief Exploration Officer of the National Park City Foundation, ‘is the acknowledgement that the urban environment, the urban habitat, the urban landscape, is just as important as rainforest, or polar regions, or a desert area. It’s not more important, it’s not less important, but we shouldn’t alienate ourselves from nature just because we are the dominate species within this landscape. “

Another that’s pretty interesting is London North/South, which shows a color coded split at the Thames, along with some reference points like stations. Not sure the usefulness, but it’s a beautiful map.

Another resource is the London Tree Map “This map is an initial attempt to visually present London tree data. The majority of the data is for street trees but also includes some park trees. The map shows the locations and species information for over 700,000 trees. The recent London iTree report estimated that there are over eight million trees in London, so the map is only a partial illustration of trees in London.”

An interesting bit of history, in terms of practical mapping, and a precursor to our handheld maps we use today, a post from The National Archives, a  “…leather glove painted with a map of London landmarks and was designed to help fashionable ladies find their way to and from the Great Exhibition held in London’s Hyde Park in 1851.”

 


HEADER:  The Agas Map of Early Modern London 

 

 

As January is quick turning into London month, we’re wrapped up on the summaries of available books on the subject, including works by Barton, Myers, Bolton, Talling, and Fathers, running a gamut of approaches to walking, studying, and mapping Lost Rivers.  I’d also be remiss if I failed to call back a 2016 post on another take on the subject, Iain Sinclair’s 2013 book ‘Swimming to Heaven: London’s Lost Rivers‘ which rounds out my collection on the subject.  The amazing amount of hidden hydrology literature provides a solid foundation, however, it is merely the tip of a massive iceberg visible layer of a vast and sprawling underground complex of content, and a starting point for discussing many of the other resources and discussion around the subject, including art, history, exploration, and maps.

A quick search of London and Lost Rivers or something along those lines yields plenty of material, including additional resource from the sources as diverse as London Geezer, which contains an extensive amount of information, to city specific hidden hydrology projects such as the Lost Rivers Project in Camden. A lot of ink (at least digitally) has been spent on this topic, with articles from BT like “8 of London’s lost rivers you probably didn’t know about” to BBC “The lost rivers that lie beneath London?“, the Telegraph (authored by none other than Tom Bolton, “The fascinating history of London’s lost rivers“, and perhaps the most prolific, the Londonist which covers this topic often, with titles like “The Secrets of London’s Lost Rivers” and info on specific rivers like “Counter’s Creek: In Search of London’s Unknown River” (authored by David Fathers) to a multi-part “Lost Rivers from Above: The Tyburn“.

Without going into extravagant detail and barrage you with too many links (there are over 100 I have at this point), it’s safe to say that London is by far the city with the most coverage, and it continues to emerge (such as this interactive virtual reality tour on the Guardian of London Sewers), showing that it’s a topic that continues to intrigue people.  For now, we’ll focus on some projects that work directly in the realm of these lost rivers, interpreting them directly through exploration and indirectly through art.

ART/EXPLORATIONS

Much of the interpretive work around hidden hydrology comes from art, in it’s various forms, and much of the art includes exploration, so I’m combining these two ideas in one here. We’ve previously featured artist Cristina Iglesias and her new installation Forgotten Streams in London as more of a site specific example, interpreting the Walbrook in water features outside of the new Bloomberg London HQ.

A spatial approach comes from Sandra Crisp, and her video project from 2010-2012 “Mapping London’s Subterranean Rivers”.  This work was “originally made as a site-specific installation for a group exhibition 2010 held in the semi derelict basement under Shoreditch Town Hall, London”  A soundtrack was added later and you can check out the full video at the link above.

A short blurb (with my one small edit) from the site: “The film allows the viewer to fly through a 3D map of London, revealing the sites of ancient and subterranean rivers based on research using old maps and books such as Nigel Nicholas Barton’s ‘The Lost rivers of London’. Evoking existing and long disappeared waterways that bubble unseen beneath our feet. Including; The Fleet, Tyburn, Westbourne, Quaggy, Counters Creek, Neckinger and more…..”

A detail shows the intricacy of the layering, in this case highlighting the River Wandle – but the stills don’t do it justice – check out the video for full effect.

Crisp also breaks down the research on the piece, where she shows a hybrid version of Barton’s map that was the basis for the piece, along with some of the ‘making-of’ info that’s pretty interesting.

Amy Sharrocks, a London based artist, sculptor and film-maker, created “London is A River City” from 2009.  As she mentions in her bioFor the last four years I have been making work about Londoners and our relationship to water, inviting people to swim across the city with me, floating boats to drift on swimming pools, lake and rivers, tying people together to trace lost rivers and re-create a memory of water.” 

The project included walks of lost rivers, which involved using dowsing as a methodology for walks of the Westbourne, Tyburn, Effra, Fleet, Walbrook, and Neckinger rivers.  Each of these are beautifully documented (with PDFs as well for download), and worth exploring in more detail.  Per her statement “Why I’m Doing it?“, she mentions:

“Tracing these rivers has been a process of layering: new stories over old, our footsteps over others, roads and railways over rivers. Uncovering a past of London I knew nothing about. Connecting to things submerged beneath our streets has uncovered a currency of the city, and enabled a kind of palm reading of London. 

The idea of walking is vital to this endeavor, coupled with the dowsing gives it a pyschogeographic slant. From her site:  “These rivers lost their claim to space in this city, long ago paved over, with their inconvenient tides and smells, to make way for faster roads and railways. These river walks have championed a human speed, that stumbles, stops to look at things, slows down when it is tired. There is a connection to the speed of water, a meandering dérive to battle the rising pace of modern life. We took the measure of London by our own strides, pacing out the city at our own speed.”   Flash-enabled website headaches aside, it’s a good project worth some time to dive in.  Read some coverage from the Independent on the Walbrook walk.  You can see more about some other work as well at SWIM .

Another project, this time with a poetic bent, comes from via ADRIFT, a project by poet Tom Chivers envisioned as a “…personal interrogation of climate through poetry.”, where he “sets out to explore climate as culture, mapping out the territory of climate science within urban space.”  The site has the full list of writings, and a nice archive of some related materials are also on the site.  It’s a project of Cape Farewell, which has a great mission of “bringing creativesscientists and informers together to stimulate a cultural narrative that will engage and inspire a sustainable and vibrant future society”, namely climate change.  An image from the ADRIFT site as part of a photoset “Walking the Neckinger: Waterloo to Bermondsey”

A graphic design work Hidden Rivers of London by Geertje Debets takes a different, more visual approach, as “A research on the letterpress technique, while developing the concept and design for the visualisation of the underground rivers of London.  London’s terrifying under half… Sometimes you can catch a glimpse of this underground life, but when you look better, you find the underground world everywhere, especially the underground rivers. The names of the underground rivers are used in street names, places, houses, companies, schools and orchestras. The locations of these places show you how the river floats.”

The work of Stephen Walter got a bunch of press a few years back, with this map of London that “…traces the lesser known streams, sewers, springs and culverts of the capital in intense, hand-drawn detail.”   Some enlargements of these maps, via the Guardian:

Another of Walter’s work that is worth seeing is the 2012  “London Subterranea“, which “…aims to shine a light on this clandestine infrastructure and it presents perhaps the first comprehensive map, open to the public, which places so many of its features alongside each other. It geographically tracks the routes of London’s Lost Rivers, its main sewers, the tube network and it’s ‘ghost’ stations including the Crossrail project. It also pinpoints archeological finds, ruins, known plague pits, secret governmental tunnels, the Mail Rail and the Water Ring Main tunnels. Epithets to the ‘underworld’ of crime, and the scenes of notable killings such as the acid-bath murders get a look in. So too does the site of the infamous Tyburn Tree and its many buried corpses that still lie in its wake undiscovered.”  

On the topic of the subterranean, photography as well plays a part, with many of the London area rivers featured in a National Geographic photo-essay, “11 Rivers Forced Underground“.  A book on the subject I’d like to pick up, Subterranean London: Cracking the Capitol (2014), is described via a blurb from Amazon:  “Bradley L. Garrett has worked with explorers of subterranean London to collect an astonishing array of images documenting forbidden infiltrations into the secret bowels of the city. This book takes readers through progressively deeper levels of historical London architecture below the streets. Beautifully designed to allow for detailed viewing and featuring bespoke map illustrations by artist Stephen Walter, this unique book takes readers to locations few dare to go, and even fewer succeed in accessing.”

The publication had some acclaim, with one of the images winning an architectural photography award, along with some controversy as noted in the CityLab article “The Photography Book London Officials Never Wanted You to See” which outlines some of the sticky issues of urban exploration, access, liability, and such. Content addresses more than just hidden waters, but does include some amazing photographs as seen below.

This resource on London sewers from 2011 that looks to no longer be actively maintained, is ‘Sub-Urban: Main Drainage of the Metropolis‘ which looks at the drainage via sewer exploration and photography: “Alongside more traditional study and research practices, such as access to archival materials and the use of other historic and literary resources, we apportion equal importance to the hands on scrutiny of our subject matter. Taking time to explore, investigate and photograph London’s sewers affords us a greater understanding of the often complex architecture and gives practical insight and knowledge that cannot be gained from any amount of time spent thumbing through books and documents.”  There’s a number of links on the site to other endeavors, as well as some great imagery, both current of their explorations, and some historical work, along with the timeless phrasing of the section “Close Encounters of the Turd Kind“.

And when you’re done exploring, you can always grab a pint at Lost Rivers Brewing Company and drink the range of available beers inspired by the rivers themselves, and perhaps peruse Ben Aaronovitch’s 2011 book “Rivers of London“, where he created a story around various water deities and river spirits on the Thames and areas of London.

HISTORY

The concept of hidden hydrology is intertwined with history, so threads weave through all of these art installations and explorations.  The history of the development of London is fascinating and overwhelming, but there are some great resources like British History Online, which has resources on the topic like the six volume “Old and New London” written in the late 19th century, to sites like Connected Histories, which provide timeline based search tools, or links from the London Historians’ Blog.

On the topic of Lost Rivers, the history of the Big Stink is pretty key historical moment, which was a vital impetus behind what became the modern sewage system and led to the demise of many urban rivers.  The idea of this also led to “a piece of Victorian science fiction considered to be the first modern tale of urban apocalypse”, William Delisle Hay’s 1880 novel “The Doom of the Great City”, which is covered in depth via this article in the Public Domain Review.

You can also access primary sources, such as  following along with Sir Richard Phillips as he explored the edges of London in 1817, in “A Morning’s Walk from London to Kew“.

Some visual history comes via ArchPaper “What a difference 400 years makes: Modern and medieval London contrasted in hand-drawn cityscapes” which takes historic drawing viewpoints and redraws them showing the current urban configuration.

A fascinating thread that came from some of the books was the legacy of Spas, Springs, and Wells that have been a long part of the history of London.  There are some good sites to engage with this history, such as London’s Holy Wells, or the resource Holy and Healing Wells, highlighting around around the globe, including London.  There’s some great documentation such as the book mentioned by Barton, Foord’s “Springs, streams and spas of London: history and associations” from 1910, and one mentioned to me by David Fathers, Sunderland’s “Old London’s spas, baths, and wells” from 1915, both great resources for hidden hydrology.  An illustration from Foord, showing a 1733 engraving of one of these places, Tunbridge Wells:

The history of the Thames River Postman is a bit more random but worth a read, outlining H.L. Evans who delivered mail along the Thames. “The Thames Postmen played an important role connecting people who lived on the river with the rest of the world. They also became something of a local celebrity being a constant in the fast changing landscape of the river. Considering that the job was not without its dangers, it was remarkable that the Evans dynasty managed to continue for over a century.”

A visual resource COLLAGE, is an image database of over 250,000 images from The London Metropolitan Archives and the Guildhall Art Gallery, and also includes a picture map so you can locate them spatially in London.  A quick perusal found me in the Serpentine in Hyde Park, which showed this 1795 “View of Cheesecake House, Hyde Park.

The concept of the larger regional picture is the website Vision of Britain over time, which is full of great information, and specific to the landscape is the book ‘Hidden Histories: A Spotter’s Guide to the British Landscape‘ by Mary-Ann Ochota which helps decipher the immensity of history through interpreting landforms and other traces.  From a review in Geographical:

“There is so much history to the British landscape. What with its stone circles, hill forts, mines and umpteenth century cottages, the land is marked with centuries of use. This can make it hard to read, like a blackboard written on hundreds of times and never erased”

As you can see, plenty of great work has happened and is still happening in London.  This is not an attempt to be comprehensive, and there’s tons more out there on specific rivers and locations, so consider this a teaser of sorts and google away for more.  I’m trying to find a simple way to share the mass of my resources and links online for further reading and reference, so stay tuned there, and future posts will likely expand on this rich history around hidden hydrology.  As a last reference to London, the last post in the series for now, following the lead of New York City, will be on maps.

 


HEADER:  Hand drawn map of the Rivers of London by Stephen Walter.

The final installment of books looking at London hidden hydrology is Walking on Water: London’s Hidden Rivers Revealed, by Stephen Myers.  As part of the parade of books on the topic published in 2011, this takes a very different approach than the tour/photo guides of Talling and Bolton, reflecting Myers’ background as an engineer.  If you’ve checked out the previous post on the Barton book, you’ll recognize some of this similar analysis, as the 2016 3rd Edition of ‘The Lost Rivers of London’ includes Myers as a co-author, and seems a hybrid of this book and Barton’s earlier versions.

On that note, Myers approaches the project from that engineering perspective, and its loaded with info.  A blurb from Amazon“London’s hidden – or lost – rivers are a source of fascination. This book concentrates on seven North London rivers – the Fleet, the Walbrook, the Tyburn, the Westbourne, Counter’s Creek, Stamford Brook and the Black Ditch. The author, a professional water engineer, describes their sources and traces their individual histories, setting out their influence on the development of London and their use and abuse by society, eventually leading to their disappearance. The original watercourses of each of the seven rivers are shown on London street maps to a detail never previously attempted. Research to enable this included extensive on-site analysis of their river catchment topographies and desk-top studies of numerous old maps and literary references. Walking on Water ends on an optimistic note. Drawing on his professional experience, the author proposes a practical, affordable and exciting approach to recreating riverside parks and walks in the London boroughs through which the hidden rivers passed, which uses their source waters to refresh the lakes of the Royal Parks.”

Myers breaks down the history of hidden rivers, discusses a good amount on geology and the form of the rivers, and discusses their ‘uses and abuses’, all info covered in other places, but again with a unique focus here.  The second half of the book includes specific rivers, an overall map shows some of the North Bank Rivers (click to enlarge) covered, including all the usual suspects from other books.

Also of interest is a comparative profile, showing the central London Rivers.  The relationship of the rivers in terms of altitude from headwaters to outfall is a complement to plan relationships, and particularly in the context of London where all the rivers flow into the same source, the Thames, it allow for some good comparison.

The development of the City of London is of great interest, named the chapter ‘A City Grows, Its Rivers Beggared’ and how this rapid urbanization impacted the rivers both in demand for fresh water and degradation due to pollution.  The diagram below (which would have aided with some color and texture) shows the expansion of the city, notably the sprawling growth between 1800 and 1900 (marked by the gray inner zone and outer black line).

And while the chapter on ‘Mapping London’s Hidden Rivers’ is helpful in outlining the methodology, the results that come from this work are less than stellar.  All the diagrams and maps here are black and white, using a base map derived from the Geographers A-Z Map Co (similar to Barton & Myers) which again offers legibility and usability issues that leave a lot to be desired.  While the maps in the 2016 book were in color, they seemed overly detailed and took away from the routes of the rivers. In this case, black and white flattens it all out and their small size makes the cramped and difficult to use.  A good hybrid would be a black and white base with the paths drawn in color, perhaps?

As Myers makes a point multiple times, “it was a considerable surprise to learn that there were no large-scale maps, readily accessible to the general public, which showed their routes through the metropolis.” (14)  Perhaps Barton’s original 1962 book insert doesn’t totally qualify as ‘accessible’, but it does, and much more successfully, provide a large scale map of the routes that Myers was missing. He does mention obviously using Barton, and also references a book I had not heard about previously, London Under London by a very appropriately named duo for the task, Trench & Hillman.  Another reference was to a future volume, “Walking on Water – the Hidden Water Walks” to follow this one, but I’ve not found any mention that that project came to fruition.  So perhaps that was going to be the vehicle for better, user friendly maps, that never materialized.

For each river chapter, he does include the sections of the routes, again in very small size, which I think are very helpful for visualizing the routes of streams.

The final chapter does offer a strategy for a project entitled the Hamstead Water Conduit, where he speculates on a proposal that could “recreate short, clean stretches of the Central London rivers – more particularly the Fleet, the Tyburn, the Westbourne, and possibly, the Walbrook, the City of London’s own river.” (200).  He goes on to mention that “the source waters for the Fleet, the Tyburn and the Westbourne rivers are the springs and surface water which drain naturally from Hampstead Health.  These are the only source water of the hidden rivers that have been protected from pollution and which remain eminently accessible today.” (201)

A diagram shows a proposed route, which connects existing daylit portions with new or reconfigured surface channels in places, fed by the springs mentioned above.  While not a continuous river, the result is a linear water course that works with the boundaries of the existing city fabric while taking advantage of opportunities to create surface waters.  A “…‘feel-good’ project” but one with environmental benefits, flood mitigation, recreation, tourism, and infrastructure reduction. As noted by Myers, the social benefits as well, allowing us to “lift spirits in depressing times, but also contribute a small stimulus towards better economic times.” (208)

A more technical diagram shows some of the interconnections between the old and new systems, as well as the make-up water using existing groundwater stores (a metaphorical routing) and creating a water balance that kept water uses constant while using excess flows to ‘restore’ river segments.

 

The strength of this book, as indicated in the above analysis, is a solid, technical background in both the formation of rivers, the geological and hydrological framework in which these waterways emerged, the development implications that drove them underground, and some realistic considerations on why it would be difficult to daylight them, as they have been so fully consumed into the existing sewer systems. But also, some defensible and plausible daylighting strategies that take these multitude of factors into play.

The glossary ‘Watery Definitions’ on page 20 is a good touch, and discussion of what is a creek, stream, river, etc. is one that few tend to delve into in any detail.  As he mentions, due to size and typology, “it might seem more approrpriate to make reference to London’s ‘Hidden Streams’ rather than to London’s hidden rivers, as the flows in them could not really be described as ‘copious’ and their water surface widths generally lay in the narrow band of between 2 and 6 metres.  However, these watercourses have been referred to historically and collectively as ‘rivers’, and so this book will perpetuate that possibly inaccurate usage.” (22)

The Disclaimer at the beginning was interesting as well, as it seemed appropriate for anyone with a background in design and engineering to include the cover-your-ass language about accuracy, liability and not using the information for specific purposes.  This shows up also in the later Barton & Myers version of Lost Rivers, but does bring up a point about representation and what it could mean.  The accuracy of old maps .  He also warns about sewer exploration, I guess as well a necessary caveat for disseminating this type of information.

Each book I’ve covered offers something unique to the conversation, and this provides a great resource for those interested in London, but also a wider context of the emergence of urban creeks and rivers which seem applicable to all places.  A level of technical rigor also makes this a valuable companion to other resources that focus on places, history, landmarks and culture.