creeks

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

 

 

I’ve been inspired by the work many others have done to capture the qualities of coverage of waterways at national scale both in the US and the UK, and beyond the mapping, appreciate their investigations into the unique distribution of place names, or toponyms.  The language of the waterways informs more local hidden hydrology endeavors, and understanding regional vernacular variations provides a snapshot into our varied relationships with water.  While a glance at the Pacific Northwest via these other maps shows that the predominant name for waterways is probably going to be either creek or river, I wanted to dive a bit deeper to see what other names are used to denote waterways.  To accomplish this, I spent some quality time with the USGS National Hydrography Dataset (NHD) to unlock a bit of the secrets of regional variations.

For starters, the NHD is an amazing resource of information, pulling together a comprehensive collection of data on flowlines, watershed basins, and more and the ability to get data from a variety of formats for small to large basins and states.  From their site, the purpose of the data is to: “define the spatial locations of surface waters. The NHD contains features such as lakes, ponds, streams, rivers, canals, dams, and stream gages, in a relational database model system (RDBMS). These data are designed to be used in general mapping and in the analysis of surface water systems.”  The first steps are a bit daunting, as the State of Washington included data with over 1.3 million flowlines, seen below in aggregate. The flowlines aren’t any one single waterway, but are the individual segments that make up each creek.

While the data preserves local basins shapes by sprawling outside state lines, I wanted to make this unique to Washington, so needed to clip it to the state boundary.  This ended up being a bit of a task for my rather slow computer to crank out the clipping, so I had to think of some alternatives to simplify the dataset.  Interestingly enough, over 80 percent of the flowlines (around 1.1 million of them) are unnamed, and while I’m sure are perfectly lovely bits of creek and river, they don’t help in our purpose in terms of deriving place names.  Eliminating them also serves the dual benefit of reducing the size of our working dataset quite a bit.  After trimming to the state boundaries, we ended up with a nice workable set of around 170,000 flowlines that have names, seen below.

Per the NHD FAQ page, “Many features also are labeled with the geographic name of the feature, such as the Ohio River. The feature names must be approved by the Board of Geographic Names (BGN) in order to qualify for inclusion in the NHD.”  More on the BGN and the wonderful assortment of place names that exist in these lists beyond their descriptor (which is perhaps the fuller idea of toponyms), in this case we break down the list and see what comes to the top.   Not surprising, but the use of the terms Creek and River dominate the landscape of Washington, accounting for 98% of all named flowlines.

Of the totals, creeks truly dominate, with around a 75% chance that a trickle of water in the state will be referred to as a creek.  The larger, less numerous rivers make up 23% of all flowlines, and the map above paints a wonderful portrait of the density of waters.  Separated out by type, you see the branched structures of trunk and stem that pumps water through most of the mountainous west side of the state, with the larger, drier plains to the east more open.  All total the combined length of these equals over 30,000 linear miles.

1. CREEKS

2. RIVERS

So we live in a creek and river area of the world.  Amidst these dominating toponyms are a distributed layer of types of flowlines that make up the remainder of the story of Washington, that final 2 percent, emphasized in a darker blue below.

The secondary naming of these includes the most common, isolated and color coded, with a legend denoting the eight most common alternative flowline names.

The relative percentage as a portion of that slim 2% of state flowlines, include:

  1. Slough (30%)
  2. Fork (16%)
  3. Canal (16%)
  4. Ditch (9%)
  5. Wasteway (4%)
  6. Branch (4%)
  7. Run (4%)
  8. Stream (3%)

The remaining 14% are composed of small portions that include Lateral, Brook, Drain, Slu (a variation of Slough), Gulch, Channel, Siphon and it’s alternative spelling Syphon, Washout, Waterway, Swale, Glade, Pass, Gate, and Range.  Many of these as we see, are geographically located towards the center of the state where agricultural landscape has created larger modifications and creation of waterways (described in the NHD data under the names like Artificial Path, Canal Ditch, and Connector).  There’s a split between more traditional waterway name variations (i.e. Slough, Fork, Branch, Run, Stream) and those that mostly utilitarian, capturing the poetry of industrialization (i.e. Wasteway, Ditch, Canal, Siphon, Lateral).  Removing the background landform, you see the composite of the different stream types as a whole, with creek/river in blue and the remainder by color.

For a more local view, the NHD data is a bit less sparse, not capturing the same amount of complexity is smaller urban waterways, plus without the other water bodies like lakes the geography seems somewhat off.  The purple to the west in the Olympic Pennisula shows a density of flowlines referred to as streams, and the darker red denotes a number of local sloughs that exist in local river systems.  It’s harder to see, but you can catch the Ship Canal in this group, and the slightly lighter red fork in the center is the infamous Duwamish Waterway, the lower stretch that runs through Seattle and ‘lost’ its designation as a river – interestingly enough it’s the only flowline in the state with that moniker.

I was expecting the dominance of creeks and rivers in the nomenclature, but was also really surprised that these combined to make up so many of the collective flowlines. Perhaps early settlers and place-namers lacking a bit of creativity.  It was also a good surprise to find a wealth of other place names in Washington, albeit many used to describe man-made features, including the most poetic name of wasteway, but enough fun to find an occasional branch, fork, brook, and run, which are more common elsewhere in the United States, per the other US maps.

These are pretty basic graphics exported from GIS just to give a feel for the data, so I’d like to play around more with representation, perhaps some sort of heatmap.  Also I’m eyeing Oregon for a comparison, and maybe wanting to dive into the waterbodies as well beyond linear flowlines, so more fun to come.  Who knows, an atlas of the whole country with a top ten of their most common names of each state.  Or maybe not…


HEADER:  Excerpt of River and Stream Composite Map – data from ESRI, NOAA, USGS – Mapping by Jason King – (all maps in post same attribution, © Jason King, Hidden Hydrology, 2018)

An interesting project from Center for American Progress, The Disappearing West “maps a rapidly changing landscape, explores what is being lost, and profiles a new movement for conservation that is gaining ground.”  The project documents both land and rivers, with an eye on the impacts of development (urban, dams, mines, and more) on these systems, and provides data and maps on their current conditions.  From a water point of view, this information provides a new level of detail on river health in the Western United states.

Through the Disappearing Rivers project, the Center for American Progress is providing the first comprehensive snapshot of the condition of Western rivers. “

The documentation is compelling, and punctuated with some fun graphics, as seen in the amount of rivers modified from their natural states, including levels of headwaters, smaller rivers and streams, and major rivers. The results are staggering. “Often portrayed as continuous lines on a map, modern-day rivers are fragmented and impaired versions of their former selves. Waterways that once supported navigation and enabled adventurers to explore the West are no longer passable in their entirety. In fact, the average length of a river in the West has been reduced by 84 percent.”  

And some of the graphics have a bit of whimsy – highlighting the impacts of dams on fish… and reinforcing what we already knew, that it is oh, so very sad that they just wait, and wait for that dam to be removed.

The maps as part of this project are the focus of what I wanted to include, as they are compelling visually.  I first heard of this project via Twitter, from a link from the mapmaker John Gage from Gage Cartographics, (via Twitter @gageCarto) who described using 400,000 flowlines from the National Hydrography Dataset to create the mapping for the entire west coast (see header image above) with layers of embedded data using the amazing suite of tools from Mapbox GL.  Stream-level data, like this snapshot of the Portland area and extent of floodplain alteration, sit on a dark background for good contrast, and shift with a gradient from red (high degrees of alteration) to blue (low degree), and highlighting the impacts of urban development on rivers and streams in a beautifully tragic way.

The same view, again of Portland, showing flow restriction, which is less problematic, but is highlighted with some key spots, interestingly enough the outflow from the Sandy River east of Portland.

Larger, thematic maps provide watershed and other coverage, including extent of floodplain alteration. As you can see from the Seattle image below, the extent of alteration of urban floodplains, not surprisingly, is greatest in urban areas, and the Salish Sea coastal areas show up to 90-100% levels of alteration.

There’s also mapping of dams by size of their capacity, again with a dark background highlighting the point data.

The map functionality allows for selecting layers and different base maps, along with extracting specific information from map elements.

The use of hover pop-ups is great as well, conveying location-specific information such as stream info, or watershed-level data for impacts in Washington like the map below showing irrigated lands.

My focus is on some northwest zones, but the project spans the entire west, and there’s also an animated tour of the Colorado River, which employs some interesting story mapping techniques.  The animated slides take you through the story of what is “…Sometimes called ‘America’s hardest working river,'” and describes the conditions that cause “…over half (54%) of the Colorado River is dammed, diverted or otherwise altered from its natural state.”  Using a number of different maps themes, views, and animations, along with text and photos, it paints a compelling story of the impacts of the river, including a major impact, dams.

There’s a ton of info, including links to download the map data as well, via a site for the Disappearing Rivers of the Western United States, which “Disappearing Rivers is the culmination of an analysis by Conservation Science Partners, in association with the Center for American Progress, to investigate how human development has altered rivers in the eleven western states. The objective of Disappearing Rivers is to quantify the degree to which human activities have altered rivers in the western US. We separated this objective into two primary components: flow alteration and floodplain alteration. The Disappearing Rivers gallery contains river and stream flowlines data with associated flow and floodplain alteration attributes.”  The site is loaded with good info, and the maps and graphics help tell a compelling story that complements the data.  The power of maps, and the overall ability to convey tons of information on easy to use, online maps, still blows me away.  Check this out – worth some time.


HEADER: Snapshot of West Coast Flow Restriction – Disappearing Rivers

“Day Zero” is the tag line for troubling news from Cape Town, South Africa. The term marks April 21st, which is when they expect the city to run out of drinking water. A story from January 18th, via PRI’s The World, Cape town could be the first major city in the world to run out of water‘ offers some perspective.  Listen below:

There has been water rationing efforts for some time, and the news isn’t new, but the  including.  After ‘Day Zero’, residents will have to get water from city collection points, where they are limited to 25 liters per day.

A dashboard from the City of Cape Town provides information on efforts to combat the .  It also confronts with the harsh reality – as of writing this on 01/30, the date of Day Zero had been moved up to April 16th, five days earlier that originally estimated, along with an announcement that “Level 6b water restrictions are in effect from 1 February, which requires all to drop their daily use to 50 litres pp/day or less.”  

For some context, 50 liters is a little over 13 US gallons, which in terms of daily usage is quite low, for instance a page from Water Science School of the USGS estimated that average daily usage is around 80-100 gallons per person, and that a shower can use from 2-5 gallons per minute.  How long will 13 gallons last, when you also must use that for drinking water, cooking, and other daily necessities.

A post from today via The Map Room, provides some visual to accompany this, linking the NASA Earth Observatory, which includes this animate map, with a description from the site: “The animated image at the top of the page shows how dramatically Theewaterskloof has been depleted between January 2014 and January 2018. The extent of the reservoir is shown with blue; non-water areas have been masked with gray in order to make it easier to distinguish how the reservoir has changed. Theewaterskloof was near full capacity in 2014.”

The rapid depletion is driven by what’s been termed a 1000 year drought, which is also amplified by more development.  The cycle of reservoir levels at the dams show this trend since 2013.

There are new technologies being attempted, such as increasing capacity of dams, drilling to tap new aquifers, and desalination plants, all of which won’t be online in time to avert Day Zero, and come with costs that some are balking about, but could help future issues.  PRI also mentions some strategies employed beyond conservation, such as rainwater harvesting .

An article from March 2017 explored similar topics, via The Conversation “Stormwater harvesting could help South Africa manage its water shortages.” discusses strategies “ to adapt to and mitigate water insecurity threats,” including stormwater harvesting from building roofs, stored using ponds, which “can improve water security and increase resilience to climate change in urban areas. It can also prevent frequent flooding and provide additional benefits to society – such as creating amenities and preserving biodiversity.”

An image of one of these projects above shows the holding capcity and amenity. They seem small compared to the massive Cape Town reservoirs which collectively hold over 400 million cubic meters of water, but studies show that collectively “stormwater harvesting had the potential to reduce the total current residential potable water demand of the catchment by more than 20% if the stored stormwater was used for purposes like irrigation and toilet flushing.”  There are also residual benefits including value from amenity value, property values, and flood reduction.

COULD LOST RIVERS BE THE ANSWER?

Could the buried springs and creeks provide a supplemental source for drinking water to combat the Day Zero?  As far back as 2013 is an article from Cape Times entitled ‘Cape’s spring water wasted‘, which discusses the work of Caron von Zeil, and Reclaim Camissa “a project that uncovered and documented the vast amount of fresh water that flows underneath Cape Town.”  Identifying the springs and streams that have been paved over potentially provides opportunity to capture drinking water to supplement shortages.

From the article: “Von Zeil’s archive research showed that historically there were 36 springs in the City Bowl. She has uncovered 25 springs and four underground rivers. The City of Cape Town has only 13 springs on their records. Parliament is sitting on two springs and a huge underground reservoir.”

The above photo via their Facebook page is captioned: “This is NOT a riool (sewer) – 8.8million litres of Water flows through here to the ocean on a daily basis…lost to nature and humanity. This is HYDROCIDE.” which gives a taste of the tone.  This strong advocacy they attempt to raise awareness, coupled with  pilot projects, Reclaim Camissa such as a proposal called Field of Springs, which “was to be based on vacant council land in Oranjezicht where several springs were located. It would harness the spring water and be an outdoor water museum with natural ponds where people could see the water being cleansed. It would have an outdoor laboratory, education centre, bird hide and a bottling system where offices that used large glass water coolers could tap into the spring water.”

Von Zeil gave a TEDxCape Town talk in 2011 discussing Reclaim Camissa.  Via the intro it explains that “CAMISSA, meaning ‘the place of sweet waters’ is the ancient Khoi name for Cape Town. Embedded, lost and obscured within the city’s fabric this vital ecological and cultural link still exists….  The vision is one of a genuinely progressive dual water management strategy that offers opportunities for new models to transform the future wellbeing of the city into an equal society for all people; and allows for public integration and education through the recreational use of the system.”

Check out the full talk here:


On a related note, those locals can tour some of these sites via a web app “Cape Town’s Secret Tunnels and Lost Rivers“.  A summary: “Join Matt Weisse on a leisurely walk through the city, following in the path of the old underground rivers and tunnels to the Castle of Good Hope. Parts of the underground Canals and Rivers date back to 1652. They used to supply the passing ships with fresh water. Later these rivers became pleasant walkways shaded by Oaks with bridges going over them. As the years passed and the city expanded they were eventually covered up and forgotten.”

The app provides a map with audio clips of key sites, can’t vouch for the 5.99 price tag, but seems like a cool idea.


HEADER: Image of the ‘Cape Town’s main water supply from the Theewaterskloof dam outside Grabouw, Cape Town, South Africa’ (From the AP, retrieved from Spokesman.com)

 

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.

 

 

Jumping forward a bit,  the most recent of the books on London from June 2017 is another slim, exploratory volume, London’s Hidden Rivers by David Fathers.  Dubbed as “A walkers guide to the subterranean waterways of London’, this small book is extensive in scope and graphics.  From Amazon: “David Fathers traces the course of twelve hidden rivers in a series of detailed guided walks, illustrating the traces they have left and showing the ways they have shaped the city. Each walk starts at the tube or rail station nearest to the source of the river, and then follows it down to the Thames through parkland, suburbia, historic neighbourhoods and the vestiges of our industrial past. Along the way there are encounters with such extraordinary Londoners as William Blake, Judy Garland, Paul Robeson, Terence Donovan, Bradley Wiggins, Nelson, Lenin, Freud, and the great Victorian engineer Joseph Bazalgette.  Hidden Rivers of London contains over 120 km of walks, both north and south of the Thames. Winding through the hills, valleys and marshes that underlie the city, every page is a revelation.”

Fathers is an illustrator and map-maker, with a strong focus on walkiing guides, so this is in line with the other tour-specific guides, however, he visual and exploratory nature is inventive and really works with large, illustrated spreads (even in a small book), that highlight key points, while remaining focused on the route and the relation to the former waterway.  Text fills these empty spaces, in Fathers’ distinctive style.

There’s also a story beyond the story, not trying to get too much technical knowledge, but looking more at storytelling, for instance the Serpentine in Hyde Park, part of the route of the River Westbourne.  Some snippets of history, along with significant modern features, make for an interest mix.

I had seen snippets of his other books on the The London Thames Path and The Regents Canal, and really enjoyed encountering his work for the first time from this Londonist post, “The Lost London River With A Musical History“, which recounted one of the stories that eventually made it to the book, that of the River Westbourne, which “…like so many London streams over the past few hundred years, has been press-ganged by the demands of hygiene into becoming a sewer, and buried for the needs of ever more living space. And yet despite all this, the stream alone seems to have a mysterious, magnetic quality of attracting musicians to its banks.”  He recounts the experiences of a number of musical talents over history that were related to the hidden river, including below, where Judy Garland lived in 1969 (Site E) and Site G, which was the “site of the former Ranelagh Pleasure Gardens where a young Mozart gave a musical performance in 1764”  

A review from the Londonist mentions: “Each river is mapped in some detail, allowing the walker to follow closely, looking for clues: here a sloping side-road, there a gushing drain. The real joys are the little puddles of trivia that accompany each walk. Who knew that Lenin often frequented a fish and chip shop in the River Fleet valley? Or that Van Gogh fell in love on the banks of the Effra?”  Fathers had written often for the Londonist on the subject, with some great weekend walks along the routes of the Wandle, Lea, and Ravensbourne, with the expected maps and sketches, such as this from Ravensbourne.

You can follow him on Twitter @TheTilbury, and he’s also got some great info on all the books on his website, as well as this poster of the Thames, which “This full colour, illustrated poster, is packed with information about the architecture, bridges and monuments that line the banks of the River Thames as it flows through the capital city from Putney to Tower Bridge.”  

Following the early publication of ‘The Lost Rivers of London’ by Barton, there emerged in 2011 a set of compact, exploratory volumes by Paul Talling “London’s Lost Rivers” and by Tom Bolton “London’s Lost Rivers: A Walkers Guide”   Based on how they are listed on Amazon, it looks like Tallings book came out in June,  and Bolton’s arrived later in September, so i’ll start with the first.

London’s Lost Rivers by Paul Talling is a small pocket guide offers information on 22 lost rivers, and assorted other canals and water infrastructure.  There’s a companion website as well at www.londonslostrivers.com, which has info on the book as well as more details.  Paul Talling is a photographer and tour guide, so the book adopts that vibe, with great imagery and narrative focused on storytelling and exploration. A few images from the sample chapter on the website show the general format.

The maps are small but clean, with key highlights that reference back to the text, and the size warrants easy access via walks.

A review from May 2011 in the Londonist gives a good synopsis, “The format is spot on. Short bursts of text describe the tell-tale signs (look for ‘stink pipes’, sloping roads, and the sound of gushing water beneath manhole covers). Each watercourse is accompanied by an excellent selection of photos taken by the author.”

The text highlights some stories around the history and use, along with timelines for when the rivers were.  They vary as much as the rivers themselves, with anecdotes on things like the origins of the name, in this case the Effra“There are two possible explanations for the name Effra. The first is that it is derived from the Celtic word for torrent (given by the pre-Roman tribes) and the second is that it comes from an old London re-pronounciation of Heathrow, as the river flowed through the Manor of Heathrow in Brixton.”

There are lots of info on the site, including recent photos as well as a link to the a poem by U. A. Fanthorpe – “Rising Damp”, which was the 2nd place poem in the 1980 Arvon International Poetry Competition, included below:

Rising Damp by UA Fanthorpe.
A river can sometimes be diverted but is a very hard thing to lose altogether.’ (Paper to the Auctioneers’ Institute, 1907)

At our feet they lie low,
The little fervent underground
Rivers of London

Effra, Graveney, Falcon, Quaggy,
Wandle, Walbrook, Tyburn, Fleet

Whose names are disfigured,
Frayed, effaced.

There are the Magogs that chewed the clay
To the basin that London nestles in.
These are the currents that chiselled the city,
That washed the clothes and turned the mills,
Where children drank and salmon swam
And wells were holy.

They have gone under.
Boxed, like the magician’s assistant.
Buried alive in earth.
Forgotten, like the dead.

They return spectrally after heavy rain,
Confounding suburban gardens. They inflitrate
Chronic bronchitis statistics. A silken
Slur haunts dwellings by shrouded
Watercourses, and is taken
For the footing of the dead.

Being of our world, they will return
(Westbourne, caged at Sloane Square,
Will jack from his box),
Will deluge cellars, detonate manholes,
Plant effluent on our faces,
Sink the city.

Effra, Graveney, Falcon, Quaggy,
Wandle, Walbrook, Tyburn, Fleet

It is the other rivers that lie
Lower, that touch us only in dreams
That never surface. We feel their tug
As a dowser’s rod bends to the surface below

Phlegethon, Acheron, Lethe, Styx.”

The tours are still happening, a recent attendee posted photos of a Croydon Canal Walk, and the Lost Rivers Brewing pays homage to Talling as well in coaster (or shall I say ‘beermat’) form, via.

His other book/passion is Derelict London where he showcases his photography, which you can also see more of via the book of the same name. where he: “blending photographs with accounts of how particular buildings and sights fell into disrepair and what is likely to happen to them.:  He’s on Twitter @derelict_london


Tom Bolton (@teabolton) is a London-based researcher, walker and photographer, and his book London’s Lost Rivers: A Walker’s Guide, is also a small format, aimed at an audience on the go.  As mentioned on the publisher’s site Strange Attractor, “London’s Lost Rivers takes the reader on a series of walks along the routes of eight lost rivers, combining directions for walkers with richly detailed anecdotes outlining the history of each river’s route, origins and decline. Tom Bolton reveals a secret network that spreads across the city, from picturesque Hampstead in the North to the hidden suburbs of South London, and runs beneath some of London’s most iconic and historic sites.”  A great quote also mentioned, from The Great Wen its, “a terrific mix of history, topography and practicality…”  

A foreword by Christopher Fowler sets the scene, as he explains some of the history and demise, summarizing the change in the mid 19th century from a city with vital, flowing waters to “…the water of the common sewer which stagnates, full of … dead fish, cats and dogs, under their windows” (vi).  He ends with the following:

“”This, in a nutshell, is the paradox of the lost rivers. Despite the fact that mere proximity to them eventually became enough to kill you, their mystical significance was once so strong that the Romans floated gods upon their waters. Now, with walking maps to guide us, the journal of the hidden rivers becomes clearer.”

Bolton’s introduction is more succinct, setting the scene by discussing the 50 tributaries of the Thames, and that “Of these, two thirds are partially or wholly lost, buried beneath houses and streets, channelled away in underground tunnels, their flows diverted away by the sewer system.  London lost most of its rivers in less than 100 years, testament to the wave of change that transformed it from a city of 650,000 in 1750 to an industrial metropolis with a population peaking at 8.6 million in 1939.” (vii.)

The rivers are the “veins and arteries” (vii), and were crucial for the development and growth of the city, but the growth led to the eventual demise and disappearance.  Yet, “Today the rivers have a strong symbolic presence, encompassing every aspect of human existence…” describing the connections with birth, healing, renewals, death, religion, and more, concluding (along with the Fanthorpe quote as well), “Such fundamental elements of culture and landscape are not easily dismissed, and do not disappear just because they have been culverted.” (viii)

A typical spread has a image and a pithy quote, followed by what amounts to turn-by-turn directions for a route.

These are complemented with some simple and effective maps, showing the river course as a meandering gray flowline, adjacent with a dotted path that shows the closest walking route.  Key areas are identified with symbols and context is kept pretty spare to aid in legibility.  Tough to pull off with all black & white, these work well, and the pages aligning with the adjacent text, rather than cramming it all on one map, works well.

The text and maps could, with little augmentation, become a GPS enabled tour app that directs you where to go while overlaying the experience with the voice over text, and perhaps some historic maps and photos.  A review of this book in the Londonist gives a summary as well as a comparison to its predecessor: “Tom Bolton’s handbook to the buried tributaries of the Thames offers a very different take on the subject, however. Where Talling’s book surveyed almost 40 watercourses with a punchy combo of colour photos and scatter-gun trivia, his confrere offers a more detailed geographic account of just eight rivers; broad and shallow versus deep and narrow, to put it in riverine terms.”

The review contines, mentioning that the 8 walks highlighted in the text are “…backed up with endearing home-made maps, which match the text’s precise directions. The text itself is more buoyant than your typical guide book, puddled with allusions to folklore and quoting everyone from Norwood News to Coleridge to the Book of Common Prayer. The cultural magpie approach reflects both the author’s sideline in leading tour groups, and the fondness of the publisher, Strange Attractor, for arcane, unusual and ‘unpopular culture’. This makes for a cracking read even if you have no intention of pounding the pavements. Fleet, Tyburn, Neckinger, Wandle…you’ll lap them up.”

The format is similar in nature to Talling’s book, and while the former included the authors own photos, this book includes photos by SF Said (@whatSFSaid), which were part of an exhibition in 2011.  Again from the Londonist “A collection of distinctive photos by SF Said captures the Westbourne, Walbrook, Effra, and others. The photographer pulls some clever Polaroid tricks to give his subjects a murky, subaquatic hue.”  The best resource a post here is this flickr set from Said, and some more pics are on the Time Out London blog Now.Here.This. There’s also a PDF of the gallery show at Maggs, which show these great images.

It looks like 2011 may have been a banner year for London lost rivers and hidden hydrology resources in general, as it was also the year that our next blog topic, ‘Walking on Water’ by Stephen Myers came out (also in June 2011).  Would love to know the unique set of conditions that was happening in London at the time to spawn three books on Lost Rivers in the span of a few month. Something in the water, perhaps?


HEADER:  “Depth marker at (the now blocked) entrance to Hermitage Basin at the London Docks in Wapping”  From London’s Lost Rivers, Paul Talling