There is no shortage of articles written on the Los Angeles River, and I’ve covered some of the broader hidden hydrology work being done there in a previous post here, Beyond the LA River. I do however have a special affinity for the quality of scholarship on Places Journal, and an essay from May 2018, Willful Waters by USC’s Vittoria Di Palma and Alexander Robinson doesn’t disappoint.  This longform essay provides a great background and historical framework for anyone wanting to understand the river and it’s long and contentious history, as well as recent efforts of revitalization and reconnection.   It also comes with a great collection of historical imagery, which elevates our thinking out the past, present, and future river beyond the concrete ditch we tend to associate with the Los Angeles River.

I’d recommend the essay in its entirety, so I’ll just include a few snippets and comments I thought were compelling.  At first I was a bit confused about their allusion to the Thomas Cole series The Course of Empire in this context, but after some explanation, it’s an interesting framework in which to think about hidden hydrology, in terms of binaries such as life/death or sin/redemption, and as a “cyclical” journey from wildness through some sort of apex and back through destruction and desolation.  That narrative begins another cycle of  “revitalization” and “restoration”.  As the authors mention: ” If not for the galvanizing effect of a set of historical ideas — the belief that a site, destroyed and degraded by human industry, could be transformed into something evocative of its original condition through the power of “nature” guided by enlightened design — Los Angeles might have continued to forget that it ever was a river city.”

Los Angeles River in the early 20th century. [Security Pacific National Bank Collection, Los Angeles Public Library] – via Places
From a historical viewpoint, the idea of a soft, meandering river is hard to comprehend, but also is the origin of the city itself, supporting described as “…a stream trickling through a wide sandy bed.”  with “The river basin was overspread with springs, marshes, and shallow ponds (the very name of La Cienega Boulevard recalls the landscape’s original swampy character), and the debris from the mountains, deposited over centuries, created a layer of alluvial silt that in some areas lies 20,000 feet thick.”  This lack of structure meant lots of variability, which created unpredictable volatility during storms and “rain events” in which “…waters would rush down from the mountains, carrying gravel, silt, boulders, and trees.”  This factor would ultimately lead to the demise of the river itself.

Edward O.C. Ord and William Rich Hutton, Plan de la Ciudad de Los Angeles, 1849. [Los Angeles Public Library] – via Places
The other interesting idea was the concept of zanjas (irrigation ditches), in which there were miles built as shown in the above map:  Quoting John Shertzer Hitell, “The “zanjas, or irrigating ditches, run through the town in every direction.” They “vary in size, but most of them have a body of water three feet wide, and a foot deep, running at a speed of five miles an hour. They carry the water from the river to the gardens, and are absolutely necessary to secure the growth of the fences, vines, and many of the fruit trees.”   The image below showing how these canals were parts of the fabric of the city, enclosed but still open and visible, and enlivened the place, as mentioned in a reference to visitor Emma Adams, who commented on “…the soft murmuring of water as it glides through the zangas [sic] in some of the beautiful suburbs of the city is sweet music to the ear, a happy voice sending out joy and gladness. Wherever it is heard are sure to be seen verdure, flowers, and fruit.” In this way, the wild and unpredictable Los Angeles River was remade into a tractable urban water source.”

A canal, or zanja, on Figueroa Street, Los Angeles, ca. 1892. [Security Pacific National Bank, Los Angeles Public Library] – via Places
The manipulation of the river for utilitarian purposes followed many others before it, but foreshadowed larger interventions of control.  As the authors point out, “Los Angeles was shaped by a dual need to be at a safe distance from its unpredictable, flood-prone river, and in close contact with the river’s highly controlled, artificial reincarnation: the zanja madre and its network of ditches. This relationship between city, river, and ditch is illustrated by the map drawn up by Ord and the surveyor William Rich Hutton in 1849.  Agricultural lands occupy the area between the river and the city up on the Elysian Hills, with the southerly extension of both fields and city closely conforming to the route of the zanja madre. At the same time, the problematic nature of the flood-prone river is indicated by this inscription: “sand over which the River spreads its waters which are wasted.”  They go on to conclude that,“The zanja madre was, in other words, the Los Angeles River tamed and perfected by the improving force of human culture.”

Los Angeles River and the Fourth Street Bridge, 1931. [Herald-Examiner Collection, Los Angeles Public Library] – via Places
The river at the time was still natural in most places, but the canals soon depleted water levels, and created a trickle, which was the impetus for Mulhollad’s hyperbolic yet apt “Titanic Project to Give [the] City a River”.  After this change to more consistent supply, which included piped water from the Owens Valley some 233 miles away via aqueduct, the Los Angeles River only emerged during rain events, those “… “intermittent moments when it flowed with a violence that only intensified as galloping urbanization further hardened the city’s watershed. No longer valued as a natural resource, the ever-wilder river was now feared as a “predator,” able to roam and strike wherever it wished.”  This unpredictability and ensuing series of floods changed how people thought, thinking of the river as a “menace” and thus “perceptions of the river were changed irrevocably.”

Los Angeles River at Griffith Park, ca. 1898–1910. [California Historical Society Collection, USC] – via Places
The flooding was the final impetus to use new technology to “train” the “unruly dog” of a river, which seemed to be the particular bailiwick of the Army Corps of Engineers, and creating what amounted to a “water freeway” that we know today. In a few short years, the Corps …systematically transformed the Los Angeles River from an intermittent, meandering stream bordered by willows and cottonwoods into the concrete storm drain we see today.”  The authors point of the lesson of this today.

“In a textbook example of the triumph of reason and human agency over willful nature, the Corps created the ultimate Los Angeles fantasy of a river: a “water freeway.” That a drought-prone region would celebrate the speed at which water could be drained off to the ocean was an irony not then appreciated by either the military engineers or the public.”

Los Angeles River, San Fernando Valley, 1949. [Valley Times Collection, Los Angeles Public Library] – via Places
Perceptions changed in the 1970s, and the media, politicians, artists, and environmentalists rediscovered the river in a variety of ways.  A series of articles in the Los Angelse Times by Dick Roraback in 1985 entitled , ” “Up a Lazy River, Seeking the Source: Your Explorer Follows in the Footsteps of Gaspar de Portola.” provided a poignant story about the forgotten waterway, where “… the  author narrated his expedition from the river’s mouth to its putative source, chronicling the riparian habitats of its flora and fauna. Roraback’s picaresque tale turned the Los Angeles River into an incongruous backdrop for a cast of quirky urban characters (the blonde waitress, the salty sea dog, the mussel gatherer, the dog-walking divorcée) engaged in various activities, both licit and illicit, in the river and along its banks. By presenting the river as a neglected urban feature, the series brought its paradoxical charms to the attention of a large new audience, and, crucially, positioned the river as a postindustrial terra incognita — an attractive, slightly dangerous, and alluring urban landscape.”  

Further work by artists and others who started exploring the waterway, and ultimately went on to found the Friends of the Los Angeles River, started to think about the area in different ways, and through exploration,  began as a “…characterization of the river as a paradise lost, a place of discarded things and marginalized people, served to ignite a potent landscape imaginary. It also introduced the idea of the river as a space for environmental action. ”  This was aided by the Donald C. Tillman Water Reclamation Plant which added 20 million gallons of water per day, which had an effect of revitalizing the ecology of the river.  “This infusion of wastewater generated a verdant riverscape, which in turn, and somewhat improbably, inspired comparisons with the earlier paradise described by Father Crespí and sparked talk of a riparian rebirth. As the changing river increasingly evoked that lost, idealized waterway (particularly in the unpaved eleven-mile stretch known as the Glendale Narrows), it also inspired residents to take up walking, bike riding, bird watching, horseback riding, and even kayaking and canoeing…”

Los Angeles River, Glendale, with a bicycle path along the banks. [Creative Commons] – via Places
The kayaking wasn’t always for pleasure, as it was interesting to learn that a waterway has to be navigable to be eligible for the Clean Water Act, so a group of people in 2008 kayaked the length of the river to provide its navigability.  This meant that maybe “The fantasy of transforming the flood control channel into an arcadian waterway began to seem real. Kayaking has also become a powerful means of introducing visiting dignitaries to a vision of a newly green and civic river.”  The final part focuses on the long and winding road of Revitalization, including master plans in through the 1990s and more recently efforts by interdisciplinary design teams, government agencies, and non-profits.  These focused on ecology, hydrology, and recreation, amongst other factors, either as technical studies but more often than not art intervetions or designs.  One such example is the Piggyback Yard Feasibility Study (image below), done by Mia Lehrer + Associates, which “…integrates economic and hydraulic modeling with community design considerations, but such efforts such are still few in number and small in scale.”

Piggyback Yard Feasibility Study, Mia Lehrer + Associates. [Mia Lehrer + Associates] – via Places
The mix of design, art, tours, and other creative methods of interpretation, often using minimal intervention, hint at “…the remarkable activity generated by the Los Angeles River — which as yet remains largely a concrete channel bisected by a thin course of water — testifies to the profound power of the city’s desire for ecological redemption and urban rebirth, and to ways in which civic or even poetic acts have found purchase within a byzantine network of managerial interests.”

Endnote:

The post in Places referenced above is an excerpt from what sounds like a great book, River Cities, City Rivers published by Harvard University Press and edited by Thaisa Way.  Will track down and report on at some point on this book, but here’s a summary from the site:  “Cities have been built alongside rivers throughout history. These rivers can shape a city’s success or cause its destruction. At the same time, city-building reshapes rivers and their landscapes. Cities have harnessed, modified, and engineered rivers, altering ecologies and creating new landscapes in the process of urbanization. Rivers are also shaped by the development of cities as urban landscapes, just as the cities are shaped by their relationship to the river.  ¶  In the river city, the city river is a dynamic contributor to the urban landscape with its flow of urban economies, geographies, and cultures. Yet we have rarely given these urban landscapes their due. Building on emerging interest in the resilience of cities, this book and the original symposium consider river cities and city rivers to explore how histories have shaped the present and how they might inform our visions of the future.”

 


HEADER:  Los Angeles River, view from 6th Street Bridge, 2010. [Ian Rutherford] –  image via Places

 

 

 

 

The most recent October issue of Landscape Architecture Magazine (LAM) has a great story on hidden hydrology inspiration Anne Whiston Spirn, FASLA, titled Where the Water Was, which highlights the “long arc” her work in West Philadelphia, namely the “water that flows beneath it.

The aha moment is recounted in the article, the inspiration for the poem linked above “The Yellowwood and the Forgotten Creek“, as recounted in the article, she “was on her way to the supermarket, when she was stopped at a gaping hole where the street had caved in over the Mill Creek sewer.  “I looked down and saw this big, brown rushing river, and all this masonry that had fallen in. I thought, ‘My God, there are rivers underground. We’re walking on a river.'” (122)  Sprin’s work spans decades since that story in 1971, predominately around Mill Creek which was “buried in the brick sewer pipe in the 1880s”, morphing into the West Philadelphia Landscape Project (WPLP) [covered in brief on our post on Philadelphia here].  While I was inspired as a student and professional by her work on books like The Landscape of Landscape and The Granite Garden, her work on hidden streams was perhaps the most powerful for me, both as an object of study but more broadly to leverage this research into a vehicle for positive change.  As mentioned, the WPLP website “contains maps, historical documents, reports and studies.” including an updated interactive timeline, and some newer updated interactive mapping which is good to see, as much of the interface until late was a bit dated.

A long way from the preliminary maps in CAD as part of the early mapping in the late 1980s and early 1990s.  The sophistication and breadth of this work at the time is telling thought, and I remember seeing these for the first time in college and being amazed.  The article shows what many of us know, which is how much of what we take for granted in technology of mapping that’s available to us today, and how hard it was, physically and sometimes politically to get good information.  As Spirn mentions “You had to literally go out and field check.” (134)

The takeaways of this early work was to both connect the above ground with what was underground, both historically in predevelopment hydrology but also with sewer routing and burial of waterways.  As mentioned, the idea that is a constant with Spirn of “reading the landscape” was instilled as a way to understand the full picture of a site or district.  The connection of the physical features with the social is also evident as Spirn is quoted: “It’s a pattern of eastern old cities and across the U.S., where lower-income folks are living in the bottomlands… Many are literally called the Black Bottom.” (126)  From this analysis, the idea of mapping and using vacant lands was a way to solve the hydrological problems of flooding or sinkholes, but also to revitalize communities.

The Buried River from Anne Whiston Spirn on Vimeo.

How to do it was an issue, as recounted in the article, ideas where one thing, but changing minds into action was another.  McHarg’s Design With Nature inspired her writing The Granite Garden, not as an academic treatise, but rather “…to fill a void.  Scientific journals, historical documents, topographic maps, all sorts of materials contained a wealth of information for ecological designers, but no one had pulled it together in a comprehensive, understandable book that could guide designers as well as the public.”   (127)  This book influences generations of landscape architects in many ways beyond merely historical ecology, but in how we think and communicate.  For the project itself, Adam Levine (who is the mind behind the PhillyH20 project which i documented previously) found the 19th Century maps “that showed Mill Creek and its tributaries before the land was developed. Spirn’s students digitized those surveys and overlaid them on the city’s topographic maps, finally getting an accurate depth of fill along the floodplain. “We found it’s buried up to 40 feet in some areas…”” (134)

The actions were part of this research as well, and many interesting strategies came from the Vacant Lands report (see here), as well as a number of other projects, many of which took a long time to become reality, or came with ups and downs of poor implementation or.  The successes came, owing to the persistence of Spirn and her local compatriots in West Philadelphia, summed up in the article simply:

“Change is a bit like a buried creek. It’s hard to remember its origins. Its many branchings are invisible.” (137)

The legacy locally is a series of activists still working on landscape and community building.  Beyond that, there’s an army of landscape architects inspired by this project and her writings, and her life-long spirit of advocacy.  A great homage to a wonderful teacher and landscape hero.  Lots of great info in the article – which unfortunately isn’t available digitally at this time.


HEADER:  Snapshot of Interactive Map of Mill Creek – via

Our understanding on the arc of history around hidden hydrology is informed with maps and accounts from early explorers and settlers to areas, augmented with records, diaries, and oral histories. Often this neglects and misses the valuable stories of indigenous inhabitants of areas, and leaves us with a significantly shorter timelines for reference. The role of archaeology is vital to unlocking the layers of hidden hydrology that don’t emerge from these illustrative written histories, so I was really intrigued with a recent tweet from the Museum of London Archaology (MOLA) (Twitter: @MOLArchaology) that told of their current work, called London’s lost river: the Tyburn.  From their site, the project is the result of “…a team of expert geoarchaeologists  whose work is helping us to understand London’s lost rivers. As an educational charity, we want to share what we’ve learnt, so please join us to explore the story of this long-lost river.”   

Using the interactive ESRI Story Map, MOLA developed a narrative to describe the process and some of the key findings.  Much of the work is conducted along with construction sites, which gives an opportunity to look below the surface while excavation is happening.  The River Tyburn flowed on the north bank of the Thames, and most famously, was routed and defined the space called Thorney that Westminster Abbey was located, seen in this view circa 1530.

The origins of the river are tied to the longer history of the Thames, which is illustrated (see header image) and reaches back to the last glacial period of 11,500 years ago.  From there in, “…this new epoch, known as the Holocene, the Thames began to take the shape we know today, but many channels still criss-crossed the river’s floodplain within the wide gravelly valley. One of  these channels was the Tyburn, which flowed into the Thames.”   In this zone, there are hundreds of sites, or ‘deposit logs’ that are recorded, and these are modelled to create a snapshot, particularly focusing on the depths of land (depicted below as green – high ground and purple – low ground.  From this model, “projected possible courses for the River Tyburn, following the lowest-lying areas of the modelled 11,500-year-old topography.” with a caveat that “the river would have migrated over time.”

Drilling down (literally) into the specificity of the deposits shows the ranges of material and how it can inform, looking at “ancient flora and fauna” and focusing on things like Diatoms, Pollen, and fossils of things like “Ostracods, the remains of small crustaceans, can indicate salinity, water depth, temperature, water acidity/alkalinity”.

Below is “…a cross section, or transect, running north–south from Westminster to Vauxhall Bridge, along the north bank of the Thames. This connects deposit sequences recorded in trenches and boreholes, and helps us look at these sequences over wide areas.”

They also connect their study with the work of Barton and Myers 2016 book ‘The Lost Rivers of London‘ (see here for a post on the same), which speculated on a number of scenarios for the Tyburn, and various routes.  There’s some graphic things I’d change here (namely it’s hard to read the Barton and Myers layers) but the concept is interesting, to overlay varying studies and ‘proof’ the concepts of routing. In essence, does the data reflect the speculation on routes, either reinforcing or disputing what was speculated?  The below map is a composite of this

There’s links to some coverage in London Archaeologist, such as a 2014 article in which “… Tatton-Brown and Donovan used historic documents and maps to suggest that the medieval waterways separating Thorney Island from Westminster were man-made and that the Vauxhall Bridge route was the original and only course of the river.”  The 3D views of the route and the illustration of the provide a speculative view of the area.  From the site:  “Our topographic model supports Barton and Myers’s suggestion that discussing two distinct branches (towards Westminster and towards Vauxhall Bridge) is an over-simplification of what was probably a more complex delta-like network, as shown [below] (artist Faith Vardy).  This geoarchaeological study provides a baseline for reconstructing the evolving landscape; when combined with historical records and archaeology, even more detailed models could be created. The research done by others, such as Tatton-Brown, which focuses on later periods, may be supported by geoarchaeological work undertaken in the future.”

The concept of geoarchaeology is pretty fascinating as well, and worthy of some further exploration.  In the interim, you can check out the MOLA site for what their team does, which focuses on using “…auger or borehole surveys and interpret the archaeological soils and sediments retrieved, allowing us to reconstruct past landscapes and environments.”  The reason for this particular subset is to pick up “…where the archaeology is too deeply buried for traditional excavation techniques to succeed. It is also a cost-effective archaeological evaluation tool and geoarchaeological deposit modelling, which maps buried landscapes and deposits.”  This is relevant as the surface remnants of these, but the underground deposits, so they work in a “…wide range of depositional environments, including alluvial floodplains, fluvial environments and estuarine/intertidal zones. Using palaeo-environmental proxy indicators, such as pollen and diatoms, we reconstruct past environments. Our specialists also use a range of sedimentological techniques.”

These techniques don’t answer every questions, but coupled with expertise and interdisciplinary research, enables us to see further, and deeper than previousl.  The role of archaeology and geoarchaeology in hidden hydrology is vital, as shown above. While we often rely on maps, photos, sketches, and written histories to reconstruct places,


HEADER:  Artist’s reconstruction of a cold climate, braided river, such as the Late Glacial Thames (artist Faith Vardy) – via

A few months back, I posted part one of this dual post on sensory ways of interpreting spaces and art with a focus on the amazing work around Smellscapes. Part two, as advertised, will shift gears a bit, to think about Soundscapes, and how audio can be used to illuminate places, tell stories, and engage the senses in new ways.  And there’s a lot of exciting stuff happening in this space, and this will barely scratch the surface of what people are doing, but I am focused mostly on that which is relevant to the agenda of hidden hydrology, or in ways that are not directly relevant, could inspire some new methods of intervention and interpretation.

The idea of sound is expressed in a number of interesting ways, and more importance is placed on soundscapes in design, or the larger urban sphere, and the impacts of things like noise and how it impacts humans and other species.  Or conversely, it may just be confronting the dilemma posed by White Noise, in their article about innovative sound artists “The Trouble With Sound Is That It’s Invisible.”  New ways of thinking about these topics more holistically show up under terms like Acoustic Ecology, or Sonic Ecology, which thinks about it from a broader way of thinking.  From the abstract of a introductory paper on Soundscape Ecology , the idea for the authors is that:

“The study of sound in landscapes is based on an understanding of how sound, from various sources—biological, geophysical and anthropogenic—can be used to understand coupled natural-human dynamics across different spatial and temporal scales.”

A great resource on the topic I’ve found is The Acoustic City, which is a book/CD and website focused “on sound and the city…  The book comprises five thematic sections: urban soundscapes with an emphasis on the distinctiveness of the urban acoustic realm; acoustic flânerie and the recording of sonic environments; sound cultures arising from specific associations between music, place, and sound; acoustic ecologies including relationships between architecture, sound, and urban design; and the politics of noise extending to different instances of anxiety or conflict over sound. This innovative essay collection will be of interest to a wide range of disciplines including architecture, cultural studies, geography, musicology, and urban sociology.”  

INTERACTIVE SOUNDSCAPES/WALKS

There’s a number of leaders in the field, but I will lead off with one of the rock-stars of this sub-genre that is doing inspired work around water is Leah Barclay, who seems to be everywhere doing amazing work.  From her bio: “Leah Barclay is an Australian sound artist, composer and researcher working at the intersection of art, science and technology. She specialises in acoustic ecology, environmental field recording and emerging fields of biology exploring environmental patterns and changes through sound. Over the last decade her work has focused on the conservation of rivers, reefs and rainforests through interdisciplinary creative projects that inspire communities to listen.”   One such installation is called Hydrology, which is a collection of sounds “…recorded using hydrophones (underwater microphones) in freshwater and marine ecosystems across the planet.” and River Listening, which is “an interdisciplinary collaboration designed to explore the creative possibilities of aquatic bioacoustics and the potential for new approaches in the conservation of global river systems.”   Her work is also available at this interesting site 100 Ways to Listen, from Queensland Conservatorium Griffith University, which has a ton of great soundscape info, focusing on “exploring the art and science of sound and documenting a decade of innovative music-making.”

The idea of interactive sound around water has a few specific precedents worth focusing on hidden hydrology directly.  A project I mentioned a few years back is relevant, SCAPE’s work in Lexington, Kentucky. which featured that of a series of listening stations and a self-guided ‘Water Walk‘ for their project around Town Branch Commons, to tell the story giving users:  a broad understanding of the biophysical area around the Town Branch, reveals the invisible waters that run beneath the city, and demonstrates some of the impacts each resident of Lexington can have on the river and its water quality. By sharing how water systems and people are interrelated—both locally and globally—the Town Branch Water Walk makes stormwater quality relevant, linking it with the history, culture, and ecology of the city.”

Another project that really embodies the potential of this is a School of the Art Institute of Chicago (SAIC) project from professor Linda Keane and artist Eric Leonardson called  RiverWorks, which is described as “…an interactive transient sound mapping and community engagement series of classes that reimagines and visualizes the sustainable world above and beneath the surface of the Chicago River. Challenging engagement with water, water habitats, water conservation and water quality, students activate new connections and thinking about the Chicago River as a healthy, working and recreational ecology. Inspired by John Cages’ 1978 Dip in the Lake series of acoustical experiences throughout Chicago, the course captures sounds of water, water use and misuse in the city.” 

Students explore and create art, around walking, sensing, and as a project called River Listening, which is exciting as an “interdisciplinary collaboration examines creative possibilities for marine bioacoustics and the potential for new approaches to the conservation of urban global river systems…  students fabricate hydrophones for listening for wildlife diversity below the river’s surface. Connecting invisible riverine life with urban water infrastructure, River Listening activates familiar places with unfamiliar information creating immersive spaces. Students experience interactive listening labs and document field recordings in preparation for sound maps, spontaneous performances, and installations that creatively use everyday technologies.”

An article in Open Rivers Journal from 2017 by Christopher Caskey provides a fascinating context for this work.  “Listening to a River: How Sound Emerges in River Histories” which posits that environmental historians could use sound more to develop inquiry into environments.  Drawing from Peter Coates article “The Strange Stillness of the Past: Toward an Environmental History of Sound and Noise”, in which Coates “argues both for “knowing nature through sound” and “picking up nature’s voices” in his case for analyzing sound in environmental history”, the article focuses this idea on rivers, ending with this important conclusion:

“Rivers are particularly auditory places. They make their own sounds and they have played important roles in influencing aural culture. Whether as a storytelling device, as part of an analysis, or even as an inclusion for the sake of posterity, the sounds of a river, both past and present, are worth documenting as part of the historical record.”

SOUND MAPS

An interesting strategy is to provide maps of sounds, which tie the auditory with the spatial, as mentioned in this abstract “growing research initiatives that take up soundmapping as a way of inquiring into pressing spatial, geo-political and cultural issues primarily in cities and also in the endangered wilds.”  This happens in a few ways, but can include modern soundscapes, where there are no shortage of maps and sites documenting the sounds of places, including global maps, such as this one from Cities and Memory, or Locus Sonus and to cities as diverse as Charlottesville, Virginia, Florence, ItalyShanghai, China, and  Montreal, Canada (below)

Each map comes with its own agenda, which ranges from nature sounds, biodiversityurbanization, transit, social spaces, art or even places of quiet.  The key, is that these maps have to have some agenda or viewpoint and have some innovative delivery method, otherwise, they will be boring, as pointed out in this great opinion piece on the subject, “Sound Maps in the 21st Century: Where Do We Go From Here?

The idea of mapping historical sounds does have a viewpoint, as it allows ways of connecting to the past, and appreciating the changing nature of urban environments.  One of my favorites is The Roaring Twenties, which gives an extensive spatial overview of NY City by coupling noise complaints and newsreels with places and sounds – giving a hint of a place, more focused on the man-made than natural sounds, but the section ‘Harbor & River’ connects a bit with the hydrology, along with some info on Sewer/Water Construction.

Another extensive example is the London Sound Survey, which is a really ambitious project (more here).  There’s interesting maps of a range of topics both contemporary and historical, including the hydrological, focusing on both exportation of the Thames Estuary, and a  map of London’s waterways “An auditory tribute to Harry Beck’s Underground map, the skeleton which has long lent shape to the city in the minds of Londoners. Here sounds were collected from along London’s canals and lesser rivers.”   

MUSIC

A number of interesting projects focus on music, which can be used to creatively engage with the environment.  Re:Sound is an experimental music series which explores the relationship between forgotten spaces, sound abstraction and the natural environment.

The ClimateMusic Project is another sort of endeavor with a larger mission to “…enable the creation and staging of science-guided music and visual experiences to inspire people to engage actively on the issue of climate change.  As an analogy for climate, music is familiar, accessible, and—for most people—much easier to relate to than articles or lectures. We created The ClimateMusic Project to harness this universal language to tell the urgent story of climate change to broad and diverse audiences in a way that resonates, educates, and motivates.”

The use of apps is an interesting option as well, melding GPS and music to orchestrate unique experiences that change and evolve as one moves through space.  One I’ve always been excited about is by Bluebrain from 2011 and their installation“‘Central Park (Listen to the Light)’ … a site-specific work of music that responds to the listeners location within the stretch of green of the same name in New York City…  work by tracking a users location via the iPhones built-in GPS capabilities. Hundreds of zones within the landscape are tagged and alter the sound based on where the listener is located in proximity to them. Zones overlap and interact in dynamic ways that, while far from random, will yield a unique experience with each listen. The proprietary design that is the engine behind the app stays hidden from view as the melodies, rhythms, instrumentation and pace of the music vary based on the listeners’ chosen path…. The app is the work itself. A musical ‘Chose-Your-Own-Adventure’ that does not progress in a linear fashion but rather allows the listener to explore the terrain and experience music in way that has never been possible before now. “Read more about this in a NY Times article ‘Central Park, The Soundtrack‘ from when it was released as well, and check out a short video here.

Phantom Islands is an interesting work that exists in the peripheral vision of Hidden Hydrology.  Developed by experimental musician Andrew Pekler, which was part of an oddly intriguing show called Fourth Worlds, Imaginary Ethnography in Musical and Sound Experimentation.   From the site: “Phantom Islands are artifacts of the age of maritime discovery and colonial expansion. During centuries of ocean exploration these islands were sighted, charted, described and even explored – but their existence has never been ultimately verified. Poised somewhere between cartographical fact and maritime fiction, they haunted seafarers’ maps for hundreds of years, inspiring legends, fantasies, and counterfactual histories. Phantom Islands – A Sonic Atlas interprets and presents these imaginations in the form of an interactive map which charts the sounds of a number of historical phantom islands.”   

A screenshot of it is below of one of the ‘entries’, but you really have to go experience it, let loose and have fun.

And, closing the loop on the musical side, there’s a fun Billboard article ‘10 Songs About Rivers‘ which, I feel, focused a bit much on the contemporary and missed some classics, but fun to think about. The BBC has plenty of interesting music, such as the session on Playing the Skyline, in which “musicians look at how the land meets the air and imagine it as music.”  And if we’re getting fully into the influence of environmental on music, a series of works by composer Tobias Picker inspired by Old and Lost Rivers, and even a Lost Rivers Opera from the Czech Republic, which i had a link to in the past but is now no longer working (anyone help there?)

So much more to explore, but this at least provides a primer on sound, and I’m excited to see more about how people are using this media to explore and expand our awareness, specifically focused on hydrology.  Any ideas in that realm, please feel free to comment.


HEADER:  Franz Max Osswald, contact print of sound photographs in architectural models, from Osswald’s applied acoustics laboratory at ETH Zurich, 1930–33 – taken from “A Visual Imprint of Moving Air – Methods, Modles, and Media in Architectural Sound Photography, ca. 1930 – Sabine von Fischer

There’s a plethora of early maps of Portland, many of which I’ve recently included and cataloged here for reference.  One of those maps I’d never seen before recently, oddly, is this sketch-map made by William Clark (yes, he of Lewis & Clark expedition fame) from April 3, 1806, featuring a sketch of the Multnomah River, “given by several different Tribes of Indians near its entrance into the Columbia.”  The original link comes from this Oregon Encyclopedia article on the Wapato (Wappato) Valley Indians, found whilst researching native settlements in Portland, notably those around the important confluence of the Willamette and Columbia but getting a feel for pre-settlement use of waterways. The map is found in Volume Four of the Original Journals of the Lewis and Clark Expedition, 1804-1806, which constitutes the return trip of the Corps of Discovery from Fort Clatsop on the Oregon Coast back towards the east.  The entry and fold-out map includes a remarkable amount of information including natural and hydrological features, as well as references to many of the tribes as alluded to in the title.

It’s amazing to see the detail of the map and density of information, in what I assume was field drawn, probably in a canoe, fending off bears while simultaneously collecting plant samples.  I jest, but I’m constantly amazed at the ability of early explorers to represent places quickly and with much    For me, at least, it was much easier to conceptualize graphically if you rotate the map so north is facing up, so the subsequent enlargements flip this over.  This enlarged view shows the key features at the confluence, perhaps not drawn to scale, but remarkably accurate, including to the east, both the Washougal River (noted as Teal) and the Sandy River (noted as the Quick Sand). There are also notes on the various encampments on river banks, such as the Nechacolee and Nechacokee around Blue Lake in Portland on the south bank, Shoto up around modern day Vancouver Lake to the north and many more smaller encampments of the local Multnomah and Kathlamet tribes. To the west, around Wappato Island (modern day Sauvie Island) which was home to Multnomah, Clannahqueh, Cathlahcommahtup and others on Sauvie Island on the Columbia River, and around the other side of the island, known as the Multnomah Channel. See this additional post from the Oregon Encyclopedia for Lewis & Clark’s estimate of the Portland Basin Chinookian Village tribal populations here as well for more detail.

The same zone taken from a Google Earth image shows the general location of and features. The fidelity of the geography is a bit off (it’s a sketch map) but it’s all there.

Further south, the geography is a bit more sparse, but does include the upriver span of the Willamette (called here the ‘Multnomah River’) and it’s connection to the Clackamas River (heading east) including encampments of Clackamas along that river, and perhaps mis-estimating a bit how far away Mt. Jefferson actually was (see below)… and ‘The Falls’ which denotes Willamette Falls, which was an important settlements along this important confluence,  and Charcowah, and Cushhooks near the Falls….

The same view of current day area, again with a bit of misalignment of the rivers, which probably comes from the map being adapted from a drawing done by a local tribal elder, but the general features there.

The text supplements the map somewhat, with stories of meeting a group of Shah-ha-la Nation and showing them the Multnomah:

“we readily prevailed on them to give us a sketch of this river which they drew on a Mat with a coal, it appeared that this river which they call Mult-nó-mah discharged itself behind the Island we call the image canoe island, as we had left this island to the south in decending & assending the river we had never seen it.  they informed us that it was a large river and runs a considerable distance to the south between the Mountains.”

Clark takes a party to explore, and encounters huts from various tribes, along with harvesting of wappato and roots via canoes along the rivers, and found the hidden entrance to the Willamette (which he refers to as the Multnomah River, along with the tribes on Wappato Island and noted the depth of the.  He mentions that he “…can plainly see Mt. Jefferson” which may allude to it’s proximity on the one map.  As he continued to explore he mentions being “satisfyed of the size and magnitude of this great river which must water that vast tract of Country between the western range of mountains and those on the sea coast and as far S. as the Waters of Callifonia…” which if not totally true, does allude to the size of the Willamette drainage in at least draining a fair portion of NW Oregon.  He continues by visiting a long house, and learns the constant refrain of deaths from small pox and starvation. He asks for a map of the area and the people from one of the elders.  “I provailed on an old man to draw me a sketch of the Multnomar River and give me the names of the nations resideing on it which he readiliy done, and gave me the names of 4 nations who reside on this river two of them very noumerous. The first is Clark-a-mus nation reside on a small river… the 2.d is the Cush-hooks who reside on the NE side below the falls.”

They note the entrance to the Multnomah river being “142 miles up the Columbia river” from the Pacific, include the sketched map, and then are off, up-river, continuing eastward.

An excerpt of the journal, the specific passage of which is available via this Oregon Encyclopedia post here as well.

A simple yet evocative project, Below the Surface is a catalog of objects found when a canal was drained in Amsterdam, creating a longitudinal timeline spanning from modern day to prehistory.  From the site:  “Urban histories can be told in a thousand ways. The archaeological research project of the North/South metro line lends the River Amstel a voice in the historical portrayal of Amsterdam. The Amstel was once the vital artery, the central axis, of the city. Along the banks of the Amstel, at its mouth in the IJ, a small trading port originated about 800 years ago. At Damrak and Rokin in the city centre, archaeologists had a chance to physically access the riverbed, thanks to the excavations for the massive infrastructure project of the North/South metro line between 2003 and 2012.”

The immensity of artifacts found in this hidden hydrology is amazing, and offer a rare chance to look below the surface (as opposed to underwater explorations, which has a range of limitations).  As mentioned:

“Rivers in cities are unlikely archaeological sites. It is not often that a riverbed, let alone one in the middle of a city, is pumped dry and can be systematically examined. The excavations in the Amstel yielded a deluge of finds, some 700,000 in all: a vast array of objects, some broken, some whole, all jumbled together.

The historical context spans a modern timeline going back many centuries, and the evolution of the site were important and provide context for what was found.  For the Rokin site, seen below, the area: “…served as an inland harbour for boats transporting goods and people from the hinterland. Both banks were densely developed with housing, workshops, shops and institutions, among which the Nieuwezijds Chapel (1347). The local urban fabric was constantly changing as major spatial interventions were implemented.”  

The site gives a detailed overview of the project and the archaeological challenges and opportunities, which include two sites, the Rokin and the Amstel. “For purposes of research, there were two intertwining strands: the city and the landscape. These revolved around the origin and history of Amsterdam. Finds from the river, consisting of (the remains of) ceramic, bone or metal man-made objects (artefacts), afford an insight into the material culture of the city. Ultimately, archaeological remains reflect the everyday activities of humans, in this case, of the inhabitants of Amsterdam and its visitors. As such, they are invaluable in the reconstruction of the historical picture of Amsterdam. The value of material remains as sources of urban history lies largely in their connection with the topographical structure of the city. Hence, the vital importance of the link between the deposits and their spatial origin in urban archaeology.”

The concept of streambed archaeology is well documented also, including the process of retrieval is aided somewhat by their submersion, as mentioned: “Another factor that makes streambed sites unique is their tendency to remain intact on account of the inaccessibility of the sunken objects. Once they had fallen in the water it was not easy to get them out. “  There are specific water focused objects, as well as giving clues to what was adjacent to the waterways: “Quite apart from the physical aspect of archaeological material sinking down in water, underwater depositions differ from deposits on land in the diverse origin and generally mixed nature of the finds. They are primarily associated with shipping activities and vary from items that have fallen overboard to complete shipwrecks and parts of ships. Archaeological remains can also be connected with activities ashore. As such, they can often be linked to objects associated with a building or structure, workshop or installation along the bank.”

The visuals of what has been found is provided in a grid, following chronological order, in order to sort from modern to ancient.  The recognizable debris from the modern era, such as credit cards in the 2000s, jewelry and china from the 1650s, pottery from the 1450s, and even fossiles and shells from early prehistory (listed as -119000).  A temporal snapshot of evolution, and an indication that, among their many urban uses, urban water bodies are a repository for our shared archaeological history.

xxx

 

Beyond this, each individual object is cataloged individually, such as this pocket knife.

There’s also a print version, called Stuff, which is available:

The cultural relevance of this detailed exploration hints at an expansive role of waterways in the urban context as containers for memories and, perhaps a time capsule for objects that can trace our lineage over millennia.


HEADER:   Excavation site at Ferdinand Bolstraat station, the cross-section shows the top of the Pleistocene (10,000 B.C.)

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

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)