A quick visit to Portland this weekend didn’t feature much in the way of exploration, but it was a pleasure to stumble upon the Tanner Creek Tavern, a new restaurant in the Pearl District (corner of 9th and Everett) with a nice connection to hidden hydrology. The name says it all, but the spot has the distinction of housing some notable historical remnants celebrating Tanner Creek, including some maps and photos of the creek, which ran nearby for many of the early years of Portland’s history before being encased underground in the early 1900s.
The far wall of the restaurant contains a 1870s aerial lithograph of downtown, viewed from the east across the Wilamette River, with the ‘route’ of the creek highlighted in a faint blue. Some questions arise about the fidelity of the tracing of the mouth of the creek, but it does aid in reinforcing Tanner Creek.
photo – Jason King
Oddly enough, I’ve collected other versions of this map that are not as crisp of a reproduction (it typically comes with a chunky border and is oddly cropped on both sides, but hadn’t seen this particular one, via a link on their website gallery as well., which is beautifully shaded with the wooded West Hills up from the nascent downtown grid and a sparsely filled in east side.
Birds-eye view of the City of Portland, Oregon. Photo file #1924-b
There’s some references to the creek history on the menu, and a bit of a longer text via the website, a sidebar on the Legend of Tanner Creek:
“Tanner Creek was named after the tannery established in 1845 by Kentucky settler and Portland founding father, Daniel Lownsdale. With its headwaters originating in the West Hills, the creek traced its surface path down Canyon Road and through Goose Hollow before emptying into Couch Lake and the surrounding wetlands that now make up the modern Pearl District. Portland’s heavy storm runoff would often cause the creek to overflow, damaging property on the expanding Westside. City fathers tackled this problem in the late 19th century by burying the creek in an enormous brick-lined culvert excavated at some points to a depth of 50 feet. Today this subterranean public works project still functions much the way it did over a century ago. The creek meanders below the Pearl on its final destination to the Willamette River where it empties somewhere between the Broadway Bridge and the Portland Police Horse Paddock.”
A few other views show the space, an airy semi-industrial central bar surrounded by open seating with some wood accents. A really loved the central visibility of the map as the focal point.
Image via Tanner Creek TavernImage via Tanner Creek Tavern
Another wall visible from outside has photos of the demise, a set of 1920s era construction photos of the installation of the pipes that took the surface waters underground.
photo – Jason Kingphoto – Jason King
While I am probably same in assuming I was the only one in the place geeking out on a giant wall map of a hidden stream, it’s a decent attempt at connecting a place to place and imbuing a story into what are often sort of hollow legends that are crafted for bars and restaurants in lieu of real context. And, hidden hydrology nerdiness aside, the food and drinks are pretty good as well.
A fascinating history of hidden hydrology (of a sort) are the mysterious infrastructure traces often in plain sight. We may do a double take, or wonder about some random pattern on the surface, but often dismiss this as legacies of historical cycles of building and erasure. Those on the lookout and with an inquring spirit may discover, if you’ll pardon the pun, a deeper story.
A recent article in May 2017 from CityLab shows “The Sublime Cisterns of San Francisco”, and offers some clues to the origins, namely “Subterranean vats were an emergency response to the city being repeatedly and savagely burned to the ground.” The circles exist at a number of intersections throughout the city, noted with a circle of brick or stone.
“To date there are 170 to 200 of the tanks stashed around town—the city’s numbers varyquite a bit—functioning as emergency watersources apart from the water mains and suction stations pumping saltwater from the Bay.”
The first reference to this urban feature traces back to the always prescient Burrito Justice, who first unlocked the story in 2011, in a post link “Cole Valley Alley Solves Cistern Mystery”, and expanded on this in the 2013 post “What’s Underneath Those Brick Circles”, both of which highlight the origins of the stone circles, some dating back as far as the 1850s.
The original Cole Valley Alley post got some info from the SF Department of Public Works, including the “original 1909 plans for the 75,000 gallon cistern on Frederick & Shrader”
The original CityLab post links to a few more pics from Robin Scheswohl/San Francisco Public Utilities Commission, showing the amazing interior of these spaces:
The CityLab article also mentions the map by Mapzen’s John Oram (Burrito Justice himself), who built a fantastic interactive map of the cisterns available here – a few screenshots of which are found below – which reveals more info when zoomed in, such as location and size.
The significance of fire that created this system of cisterns that folks are discovering is driven by several major fires in the 1850s. Thus the distributed reservoirs have been installed since the original founding of the City, seen in a key plan from July 1852 – from Burrito Justice (linking to a David Rumsey map of San Francisco 1853) and identifying intersections where these existed.
The fires culminated in the most notable fire is the aftermath of the 1906 Earthquake, discussed in this April 2017 CityLab story “The Ultimate Photo Map of the 1906 San Francisco Quake” which identifies photographs documenting the event.
Market Street on fire. Looking east to the Ferry Building from Fremont Street, April 18, 1906. (Willard E. Worden photograph. Glass negative courtesy of a private collector). via Open SF History
“One hundred and eleven years ago, in the early morning of April 18, San Francisco shook and trembled through a massive earthquake. Stone buildings shed their skins. Chimneys and brick walls collapsed on streets and adjoining buildings. Roadways split and sunk. People were gravely injured or killed by crumbling boarding houses, apartments, and warehouses…
The disaster became much worse as fires broke out from the Embarcadero to Hayes Valley and, aided by wind and inept attempts to create fire breaks with explosives, joined into larger maelstroms that gobbled up almost 500 city blocks of cottages, factories, tenements, hotels, stores, banks, and government buildings over the next three days.”
The extent of the fire is captured in this view from Oakland, via CityLab, showing “A view of the San Francisco earthquake’s aftermath from Oakland” (Credit – Oakland Museum of California)
There’s a pretty extensive history of the SF Fire Department via the SF Museum site (published in 1925) for some historical perspective and some illustrations of these early 1850s fires.
The City of San Francisco Fire Departments page drops a link to the cisterns as well as a video via the exploratorium, ‘The Science of Firefighting: Cisterns’ which has some FD folks “discuss the history and function of these cisterns, and demonstrate the drafting procedures used to access the water.”
While the focus of investigations in Hidden Hydrology are often around the lost, buried and disappeared, the true nature of the hidden comes up in some interesting ways. A recent article via the CBC discusses a new find “‘This is a major discovery’: Explorers find massive ice-age cavern beneath Montreal” and discusses a hidden “Cathedral-like chamber, formed more than 15,000 years ago, [which also] features underground lake”.
The spot was found by cavers who busted through a wall in the popular the Saint-Leonard Cavern, The cavers, “Le Blanc and Caron said they were able to pinpoint the location of the passageway using a dowsing rod, similar to the wooden divination tools sometimes used to find groundwater. The two men, who first got into caving as a hobby, said they’ve been searching for an unknown branch of the Saint-Léonard cavern for years.”
A video of the exploration:
While groundwater and aquifers are well known to exist in cities, the relationship of surface and subsurface geology and hydrology makes for some interesting interactions with hidden hydrological regimes – in this case subterranean interface with the aquifer. Perhaps few examples as extreme as this in modern cities, but interesting to see something hidden for years emerging after so long.
The margins of history, ecology, and culture overlap in stories about hidden hydrology. This is evident in a 2016 article by Putsata Reang in Oregon Humanities, entitled ‘The Farmers of Tanner Creek’ that looks at this convergence in Portland and the history in the Goose Hollow area to the southwest of downtown.
The article investigates the shadow economy of Chinese immigrants that gardened on the fringes of the city of Portland around the turn of the century. Alternatively referenced as “Vegetable Man” or “Chinaman”, Reang leads with the legders of the Mills family, who “likely hefted his produce in wicker baskets hung from a pole and slung across his shoulder, trekking uphill from the gulch along Tanner Creek in Southwest Portland where his garden grew and along the hill to the Mills’ mansion every day, faithfully, for much of 1907.”
The story also notes that around 1910 that these gardens and “vegetable men” started to disappear from life, a combination of urban expansion and racism which made the land more valuable and more likely to lead to displacement. Perhaps something we can learn from again with massive growth and gentrification that is occuring in Portland and many other cities. As Tracy Prince is quoted:
““It was real estate that was once undesirable and became desirable that disbanded the vegetable garden community,” says Tracy J. Prince, professor emeritus at Portland State University. “The same pressures are gentrifying Northeast Portland, having the black community move out.”
The draw for Chinese immigrants to the area may have been the location adjacent to the creek, which Reang mentions “the lure of that wild land and an interest in cultivating crops that many had brought from their homes in the agrarian Pearl River Delta of China, an area known for terraced farming,”
The land was considered less desirable by settlers, but for immigrants aligned with floodplain food production, using the rich soils to maximize yields. The first removal of the natural channel of Tanner Creek was also the reason for the gardens to exist:
“When a wooden bridge over the creek that connected the burgeoning neighborhoods from 14th Street to 17th Avenue North collapsed during a flood in 1873, the city used the calamity as an opportunity not only to repair the bridge, but also to tame Tanner Creek. That summer, the City of Portland contracted Chinese workers to build a 115-foot cylindrical culvert to pipe the creek sixty feet below Burnside Street, a solution that both controlled and ultimately prevented flooding in the area.”
The workers stayed and cultivated the areas, eventually growing on 20 acres of land, with many gardeners avoiding the perils of other urban jobs and selling their produce to local residents, many who employed Chinese cooks, according to the article. While the land was undesirable, there was no issue, even without ownership, to using it for production. The dark history of racism in Portland started early, as mentioned, and this was directed specifically at Chinese, as “Oregon’s state constitution of 1859 barred anyone of Chinese descent from owning property, which meant that the Chinese gardeners could be evicted from their farms at any moment.”
Eventually expansion and development led to the demise of both Tanner Creek and the gardeners that capitalized on the floodplains, land was taken for building the Multnomah Athletic Club in 1893, moving gardeners south, until eventually they were move out completely, as populations spiked around the turn of the century.
Ironically for a town that prides itself on food carts, the other mechanism, the adoption of policies limiting street vending – as the article mentions, quoting Marie Rose Wong, who wrote about the Chinese gardens in her book, Sweet Cakes, Long Journey:“In 1897, the Portland Common Council adopted an ordinance requiring street vendors within city limits to obtain a license—a move that angered white owners of several fish companies that were affected by the law. The white business owners protested and by 1910, the city adopted an additional ordinance limiting the area of downtown where street peddlers could sell their wares to an area that effectively covered most of downtown Portland. Those who sold meats, fish, ice, bread, and newspapers were exempted from the ordinance, which effectively banned only the Chinese vegetable peddlers from operating.”
The crux of the story is that there are hidden stories of people embedded in the narratives of hidden hydrology, in this case the fates of Tanner Creek intertwined with those that helped to literally build grow Portland, attempting to use the creek to cultivate a life amidst forces of racism and development.
A tintype depicts a Chinese cook named Ho posing on the corner of Sixth Street and Ankeny Street in Portland, circa 1870. Photo by JW Applegate, courtesy of Gholston Collection
The article is a great reminder of the layers of history that exist, from native peoples that occupied spaces these places prior to European settlement, as well as the diversity of those, many often overlooked in white washed histories, that contributed to the early life of these cities, and continue to contribute today. It also is a tale about development, and marginal spaces that seem worthless until pressures make them desirable, and that impulse to remove impediments to development.
A great additional narrative of Goose Hollow, and where I remember first seeing these images of farms, is the book “Portland’s Goose Hollow” by Prince, worthy of a good summary on the site as well, as it does unlock some mysteries about “how Goose Hollow got its name and how Tanner Creek Gulch was filled.” Another photo from the Oregon Encyclopedia history of Goose Hollow shows a slightly different view, capturing the view, circa 1890s, of the creek running under the trestle bridge, with the Chinese vegetable gardens in the lowlands and Portland High School in the distance.
Courtesy Oregon Historical Society Research Library
Another from the same source shows the Chinese truck gardens sprawling around Tanner Creek Gulch a bit earlier, from the 1880s.
Many thanks to my Portland friend and hidden hydrology contributor Matt Burlin for this link.
Quick post to show the installation by artist Cristina Iglesias, ‘Forgotten Streams’ which is located at Bloomberg’s new European Headquarters in London. The revelatory landscape is woven through three different plaza spaces, evoking the Lost Rivers of London, namely the Walbrook.
London’s “lost” river Walbrook, which the Victorians built over, appears to have been uncovered this week. The Spanish artist Cristina Iglesias’s Forgotten Streams (2017) now flows gently through the heart of the capital’s financial district, appearing in three places in the pavement outside financial media giant Bloomberg’s new £1 billion ($1.3 billion) headquarters. It is her first public work in London.
While obviously a metaphorical interpretation, the proximity to the actual route (not exact but close) to the Walbrook activates the historical ecology of place. And I was surprised, actually shocked as I was looking at the original images trying figure out the material used, that it is cast in bronze, developing layers of matted shoreline along with differing water flows and pools. As abstracted ecology, the integration of this type of artwork into a high-visibility project is great, and while providing minimal ecological value, the historical value is a positive.
Photograph: Guy Bell/Rex/Shutterstock
I think they are pretty beautiful, but it was funny to read the review from the Guardian on the Norman Foster designed building, and a specific reference to this work: “In a civic-minded gesture, there are three new public spaces at the corners of the site, adorned with water features by Spanish artist Cristina Iglesias, although her green-patinated bronze layers of matted foliage resemble fetid swamps – perhaps a sly comment on the financial services industry.”
The theme is not a new one for Iglesias, who has tackled similar water-centric themes in previous work (amidst one of the most confounding web interfaces I’ve encountered in some time) and uses the cast bronze as a medium for waterways in other projects in her native Spain, as well as Belgium. More to come on her work as I dive in a bit, but a cool project to encounter. An image of Iglesias, working with a similar material in the swamp, if you will via CNN:
In my journeys investigating hidden hydrology I stumble upon some interesting side projects that fit nicely as a complement to the idea of buried creeks and lost rivers. While the main thrust of the project is on these lost rivers, the parallel of the unseen in terms of infrastructure systems led me to the work of photographer Stanley Greenberg. A short interview as part of Urban Omnibus series Unseen Machine entitled Stanley Greenberg: City as Organism, Only Some of it Visible piqued my interest.
The interview, which is from 2010, discusses some origins of Greenberg getting into photography, as well as the way of looking at the city in new ways.
“I think the city is a huge organism, only some of it visible, and we inhabit it, change it, get changed by it. But there is so much of it that I don’t know. I have mental maps of some neighborhoods; others I still need to explore. There are New Yorkers who never leave their home neighborhood. I try to get out and see as much as I can; walking, on my bicycle, in the subway. And I am always reading about the city, present and past. I suppose I treat it more like a tourist would, always looking for new things and hidden old things. I’ve learned to look for different kinds of subtle landmarks; where are the water tunnel shafts, for example, and how they affect a particular landscape. Or how different eras are marked by manhole covers, lampposts, width of the streets, other urban artifacts. I’m a birder, so I’ve trained myself to look at details. But it’s the same with the city; you always need to be looking. I think it’s important not to take it for granted. That’s what I try to do with my pictures; convince you that it’s worth your time to look at the city, maybe in a way you hadn’t before.”
The concepts of infrastructure also is juxtaposed with discussions of access and security of these system.
Greenberg mentions that he had good access at the time, but that the ideas have changed: “I’m saddened that so many of the places I photographed for the first two books have been removed from the public’s eye. I still think that when there’s more public access, places are safer, for a number of reasons. Neighborhoods, for example, are always safer when more people are outside and active. You can’t possibly police all sensitive locations, and you have to have the public take ownership of its property seriously. I haven’t trespassed (much) to get pictures, since my equipment doesn’t allow for it — and in most of my projects, I haven’t needed to. But I support the idea that sometimes the public’s right to know trumps rules of access.”
The photographs are, as you can see, typically black and white, and tend to focus on the architectonic, which is perhaps more about the subject than the photography itself. One interesting photo is from Fresh Kills Landfill in Staten Island, taken in 1993 before the eventual design competition and ongoing multi-phase redevelopment into Fresh Kills Park
Greenberg mentions: “I photographed Fresh Kills landfill for the book (though the pictures were not included) and then again as a commission just before the design competition started. Some places are transformed while using their history in an interesting (and often more subtle) way. Others become simulacra of what was there before, and are much weaker because of it.”
There’s also some interesting recent work on Button Agreement (a project that includes walks of Manhattan, water tunnels in NYC, and explorations of water and cities) which incorporates some earlier work on Water Log, which looks at “Water infrastructure: water supply, aqueducts, dams and dam removals, canals, locks, and other related structures and sites”
Again, the content is diverse, but includes some color photography, and delves a bit into . The photo below is from work on the “Lake Superior, Part 1″ and is captioned: “Storm Sewer (and trout stream, Duluth, Minnesota” connecting squarely to hidden hydrology.
The more subtle, comes in the form of walks (with some simple hand-sketched route maps included) following infrastructure systems, such as “City Water Tunnel No. 3 Ventilation Towers”, which has multiple shots of towers woven through the city, highlighting the subterranean path by pointing out features that would probably go unnoticed by the average urban dweller.
And closer to my neck of the woods, the photographs of the Elwha Dam removal on the Olympic Peninsula, “Elwha River, 2010-2014″ are great, showing some evolving imagery of areas as the dams were decommissioned.
Lots more exploration here, but the concept of hidden hydrology has orbits that transect the infrastructural is embodied in Greenberg’s photography. By looking deeper at cities and the subsurface elements, we can provide a beautiful connection (often even just the mundane becoming visible) to these lost, buried, hidden, yet still vital systems.
Lost River Walks is a long-standing resource in Toronto, “The objective of Lost River Walks is to encourage understanding of the city as a part of nature rather than apart from it, and to appreciate and cherish our heritage. Lost River Walks aims to create an appreciation of the city’s intimate connection to its water systems by tracing the courses of forgotten streams, by learning about our natural and built heritage and by sharing this information with others.” They include a number of Stream Pages, accessible through the Site Map, which provides history of individual streams, in this case, The Market Streams, which highlights a series of streams and provides some overlay mapping of the current sewer network.
Location of Lost Rivers
Location of current sewer system
The engagement is a key part of the group, as the name implies, through a series of guided walks, which highlight lost rivers and creeks in the context of the urban fabric, as well as focusing on topics like water quality. There are also self-guided tours ‘Thirsty City Walks‘, provides opportunities to follow the former and current routes of waterways. A map below shows the route of the walk with key points and audio commentary as one follows the route.
A great bonus article I found on the Geohistory-Géohistoire Canada Project, authored by John Wilson entitled “The Lost Rivers Project: The Case of Holly Brook“. This post outlines some of the process, in particular the need for ground truthing, as he mentions, “I have spent many hours travelling the city’s streets and laneways looking for signs of lost rivers and ravines. My street-level observation of Holly Brook’s course was simple – whatever the City Engineers may have drawn on 1890s maps, water doesn’t flow uphill!” Lots of great stuff at Lost River Walks, so check out the website, and follow them on Twitter @LostRiversTO and also via founder and lost rivers force Helen Mills at her account @HMMLostRivers
Vanishing Pointis the brainchild of Michael Cook, a resource of which “…emerged from a decade of underground research and photographic practice”. The varied topics include topics of Daylighting Creeks,Parks and Stormwater Spectacles, Lost River Activism, and Celebrating Infrastructure Projects . Cook continues, describing the work as ” a form of citizen geography, it has informed community groups, academic projects, and the official work of planners, landscape architects, engineers and archaeologists.” This sort of comprehensive resource adds to the work of Lost River Walks with information and a wealth of interesting photography. Lots to check out here, and also worth following Michael on Twitter @waterunder
The Don River Valley Historical Mapping Project is (was) a robust exploration of the Don River, “This project documents historical changes in the landscape of the Don River Valley. Drawing from the wide range of geographical information available for the Don River watershed (and the Lower Don in particular), including historical maps, geological maps, fire insurance plans, planning documents, and city directories, the project uses Geographic Information Systems software to place, compile, synthesize and interpret this information and make it more accessible as geospatial data and maps.” It’s hard to tell if it’s still active or just the website hasn’t been updated, but most info stops in 2010, but still some great geospatial data, resources, maps, and other information related to the Don and larger Toronto hydrology.
A new? interactive map of the project provides spatial information to complement the work to date, and offers a way to interact with the data in new ways.
Another interesting take on how to use different methods for displaying the subject matter comes from Alex Meyers project “Uncovering the Creek“, a timeline that provides a “…study of the city’s changing landscape through a close examination of Trinity-Bellwoods Park and the Crawford Street bridges. This project is a virtual excavation of a hidden Toronto landmark that has been almost erased by the process of city building.” A nice method of using a linear timeline with links to graphic resources and maps.
Additional Resources
The group Human River was featured in the Lost Rivers documentary, and was featured doing an interactive walk, “during the annual story telling parade, participants wear blue becoming a human river and bringing the Garrison Creek back to life”. It’s a cool way to use event to raise awareness plus looks like a lot of fun. It also looks like their website is both abandoned and hacked with lots of spamming links – so i grabbed this image quickly and then ran. Not sure the current status.
Also mentioned in the Lost Rivers documentary, the Garrison Creek Demonstration Project by Brown & Storey Architects (from 1996!) envisions the use of the Garrison Creek zones for green infrastructure, positing that “… the existing natural watersheds, like the Garrison, can be used as sites for stormwater management pond systems. Not only can these connected pond systems serve to collect, treat and re-use stormwater locally, they can also act as a catalyst in the creation of a series of connected open spaces knitting both an urban and green infrastructure back to the waterfront to Lake Ontario. The study documents several aspects of the Garrison watershed: the considerable amount of open spaces, their area and type, geological formations, existing storm water infrastructure underground, the areas of fill along the ravine path, and an abstracted locational plan for water retention ponds.”
A walking map of Garrison Creek evokes the story of the plans above, and multiple posts about Garrison Creek and a Discovery Walk also focus on Garrison Creek,
The Garrison Creek route is also referenced with some cool markers, as seen below:
Some additonal links include the Taylor Massey Project and Lost Creeks of South Etobicoke both smaller scale projects highlighting areas of Toronto lost creeks. Also, more recently, Trevor Heywood posted a long series of walks on Twitter, with his explorations around the Yellow Creek, showing that the passion for exploration of Toronto hidden creeks is alive and well. On that note, few more interesting images in the form of murals, first posted by @SheilaBoudreau of a Lost Rivers mural I’ve seen a bit; the second a map, posted by @tashmilijasevic both locations unknown to me but i’m sure folks in the area know where they’re at.
A Photographic Abundance
Photographers become drainers seems to be a theme in many cities. In addition to Michael Cook from The Vanishing Point mentioned above, another photographer focusing on underground Toronto is Jeremy Kai, (Twitter @RiversForgotten From his site: “His underground photography explores the concepts of urban watersheds and the methods in which cities interact with water and waste water. These processes go mostly unobserved by the general public. Kai hopes that by documenting the city’s lost rivers and overlooked spaces beneath the streets, he can awaken a new sense of mystery and mythology in the minds of urban dwellers everywhere. His first book, Rivers Forgotten, is published by Koyama Press. It was released December 2011 and features his underground photography”
In a different bent is a recent exhibit entitled ‘Nine Rivers City’, From the site: “From west to east, nine rivers feed into Lake Ontario. View a map of the rivers here. Harbourfront Centre has commissioned six contemporary visual artists to capture the complexities of each of these waterways that run throughout our urban landscape. Situated against the shoreline of Lake Ontario, NINE RIVERS CITY showcases how these extraordinary waterways connect us, attract us and mystify us.” A clickable map showcases photographs spatially, such as Aaron Vincent Elkaim’s HWY 401 below:
The Don River East branch flows below the King’s Highway 401, also known by its official name as the Macdonald–Cartier Freeway, near Leslie Street by Havenbrook Park. The Don is formed from two rivers, the East and West Branches, that meet about 7 kilometres north of Lake Ontario.This section of Highway 401 passing through Toronto is a near constant river of cars, and is considered the busiest highway in North America.
Another take on this is Kathy Toth, who formerly had a page on her website ‘Watercourse (Buried Creeks)’ which seems to have been taken down, but does delve into the subject matter with her Hidden Toronto work, which aims to be reprinted soon. Per her page: “The first edition of Hidden Toronto featured a selection of hidden infrastructure locations in Toronto, including bridges, drains and rooftops where graffiti has sprung up. Many of the locations are off the map and can be found with some searching or luck. Some of them are right downtown under foot, others are on the edge of greater Toronto area. I decided to showcase these spaces, and the artwork painted on them because they exist in an extremely narrow circle of composed of graffiti artists, a few photographers, and the odd individuals who either live in the surrounding areas. These environments have a unique character and the artists who work here take advantage of the serenity and isolation afforded by these surreal landscapes sometimes just 100m away from busy roadways.”
Can massive computing power and artificial intelligence crack the code of deep history of places? This is a fundamental question of a project discussed in an article on nature.com “The ‘time machine’ reconstructing ancient Venice’s social networks”. Frédéric Kaplan plans to “…scan documents including maps, monographs, manuscripts and sheet music. It promises not only to open up reams of hidden history to scholars, but also to enable the researchers to search and cross-reference the information, thanks to advances in machine-learning technologies.”
The Venice Time Machine can link citizens and businesses with historic maps of Venice, such as this sixteenth-century view of the city. Credit: EPFL/Archivio di Stato
The goal is to crunch enough data to outline the connections that emerged in historical societies including “social networks, trade, and knowledge”. While of interest to historians, it could also inform economists and epidemiologists, as well as other disciplines. Much like Rome, Venice, mentioned as “The Serene Republic“, is a good for this endeavor due to the wealth of knowledge and its organization, aided by its protected lagoons and it’s desire for documentation.
“As Venice’s empire grew, it developed administrative systems that recorded vast amounts of information: who lived where, the details of every boat that entered or left the harbour, every alteration made to buildings or canals.”
While there was been study over the years, much of the archive “…predominantly written in Latin or the Venetian dialect, has never been read by modern historians. Now it will all be systematically fed into the Venice Time Machine, along with more unconventional sources of data, such as paintings and travellers’ logs.”
Kaplan’s interest has been to employ AI for lingustics, so the concept of using machine learning to study patterns in language is fundamental to the work, along with digitization of many thousands of pages of documents, building on work already done by the Italian Ministry of Cultural Heritage.
There’s a lot more about the linguistic ‘hacking’ of documents, as illustrated below, but the concept also involved diving into the archival cartography. “In 2006, a huge, purpose-built scanner began to digitize the archive’s precious store of more than 3,000 maps of Italian towns, including many commissioned by Napoleon. These ‘cadastral’ maps delineate property boundaries and record the ownership of small parcels of land; some of the documents are as large as 4 metres by 7 metres.”
The result is the ability to create some amazing detail with overlay of multiple sources:
“One cadastral map of Venice that he commissioned in 1808 has provided a backbone of reliable data, allowing historians to add geographical context to a 1740 census that lists citizens who owned and rented property in the city. By combining this with 3D information about buildings from paintings such as those of Canaletto, the time-machine team has produced an animated tour through Venice, showing which businesses were active in each building at the time.”
A video on YouTube outlines the ambitions of the project. From their summary: “The State archives of Venice contain records stretching back over a thousand years. The vast collection of maps, images and other documents provide an incredibly detailed look into Venetian history. This could be used to create a kind of virtual time machine for historians and the public to explore the city.”
What implications does this have for hidden hydrology? To me, the overwhelming task of both digitizing information and determining patterns is something that is daunting for a team of professionals, much less individuals looking to glean discoveries from their local place. The sheer effort and technology in digitization and analysis could be employed to discover key linkages and patterns that may illuminate historical hydrology, topography, and other clues. An example mentioned in the article highlights the concept, using animations to look at spatio-temporal change , in fact “One is a dynamic video of the development of the Rialto from AD 950 onwards, using diverse sources of information at different time points. The simulation shows how the buildings — and the iconic Rialto Bridge — sprung up among the salt marshes, along with the area’s periodic destruction by fires and subsequent reconstructions.”
The possibilities with large data sets is intriguing, and the article mentions cross-disciplinary opportunities, as well as larger connections to other ‘time machines’ in cities, such as a new effort in Amsterdam and possibilities in Paris. It adds a dimension of big data as a potential avenue for exploration, yet is tempered by age-old techniques and cautions of the next shiny object.
“The unbridled ambitions of the time-machine project are a concern for some researchers, not least because many of its core technologies are still being developed. “The vision of extending digital representation into different time slots is absolutely, self-evidently right — but it might be better to develop things more in a lot of different, small projects,” says Jürgen Renn, a digital-humanities pioneer and a director at the Max Planck Institute for the History of Science. Nevertheless, Daston suspects that the time machine heralds a new era of historical study. “We historians were baptized with the dust of archives,” she says. “The future may be different.”
The distant fourth and final part of the Waterlines class featured the work of Eric Wagner and Tom Reese for their book Once and Future River: Reclaiming the Duwamish. I unfortunately was out of town for work during this session, so don’t have the specifics on their actual presentation but wanted to close the loop on the class and explore this last resource through looking at the book itself (although they may have talked about something totally different).
The Duwamish is a fitting addition to the discussions of Geology, Archaeology, and the Ship Canal previously discussed, as it is the one and only river in the City of Seattle. It, much like the Duwamish people, also best signifies the history of manipulation, exploitation and degradation, and the current challenges to restore both culture and ecology along this urban waterway. It’s also in sharp juxtaposition to the current boom, as summaried by Duamish Tribal member and director of the Duwamish River Cleanup Coalition, James Rasmussen: “We need to always remember that the wealth of Seattle was created on the backs of the Duwamish River and the Duwamish People.”
Wagner discusses this evolution of the Duwamish River and people along with the greater City of Seattle through multiple essays. They cover the inevitable growth leading the dispossession of the lands, the straightening and polluting of the river, the erasure of ecology and culture. It uncovers the long truth for Seattle about conquering nature, as has been discussed in the previous Waterlines lectures, here with Wagner mentioning it in the context of the Duwamish, “…to conquer something at least implies a respect for it… The Duwamish River cannot claim such dignity.”
Now not even a river (classified a “waterway”) and a toxic Superfund site, the idea of restoration is difficult to imagine. There is lots of hope and much work outlined in the book on the potential, in the words of William Jordan, to “heal the scars or erase the signs of disturbance.”
There are a few maps early in the text, showing the 1856 Map of the region prior to the mass of European settlement, next to the 1958 Map, which shows development and channelization and virtual obfuscation of the natural systems. As Wagner mentions, in the concept of restoration “In seeking such a reversal restoration becomes a question of time, and therefore a historical exercise as much as it is a moral or a spiritual one. What point in a river’s past should we aim for? When was it the best version of itself? What processes from that period can we bring back now?”
A theme of the book then is put at the beginning of the introduction:
“We strive for a past we have never known, having only read about it, or seen in in faded pictures, or heard of it in stories about an old, shadowed river that once ran so full of life and magic that it filled the people who lived on it with awe, terror, and love. When we arrived at that place — if we are capable of reaching it, if we can recognize it should we get there — we will have found a way of seeing something that has until now been ignored, dismissed, and very nearly lost: a river from end to beginning.”
Subsequent chapters cover the history of the River through a Salish parable called the “Epic of the Winds”, and the importance of this place in the life cycle for Chinook Salmon; land erasure and land making, the industrial heritage, large scale camouflage to win World War II (seen below, the ‘streetscape of a village draped on top of Boeing Plant 2 along the Duwamish, the facility constructing B-17 Bombers, to throw off potential attacks.
This patriotic and economic value of the altered Duwamish in Plant 2, Terminal and hundreds of other comes with a legacy of toxicity the persists and will continue for millenia. In further essays we learn about poet Richard Hugo‘s regionalist riffs on the Duwmaish, and learn about John Beal‘s tireless work to save Hamm Creek, and modern day restoration efforts including hatcheries. Will the River rebound? How long will it take? Who knows, but as Wagner mentions:
“…the Duwamish River has always been a place to test the surprising range of the possible. Settlers looked at acres of mud flats and forest and saw a city. City engineers looked at a floodplain and saw a waterway. Businessepeople looked at a waterway and saw a waste management system. Now, we look at a Superfund site and see a healthy river filled with fish that are safe to seat. All those earlier versions came to pass. Why should this latest not as well.”
While the first half is well illustrated with Tom Reese’s photos, the second part of the book is exclusively devoted to the photographs, capturing the range of themes, including the river itself, as well as the degradation and activities around its restoration. Bolstering the text, this beautiful, damaged place offers sorrow as well as hope. As Reese mentions in the Coda, “The Duwamish also informs our subconscious desire for connection and our intensifying undercurrent of worry. it can transport us to places within and beyond our own lives, reminding us what is precious, asking for our devotion.”
Some of the photos from the book are peppered through this post are also on his website, so peruse on over there to catch more imagery, or just buy the book because it’s a great addition and has even more images that you’ll come back to more than once.
An extended video probably will help fill in some of the blanks also – from about a year ago at Town Hall “…featuring Tom Reese and Eric Wagner, co-authors of “Once and Future River: Reclaiming the Duwamish”; James Rasmussen, Director of the Duwamish River Cleanup Coalition; and Lynda Mapes, Seattle Times Environmental Reporter”
Header image Copyright Tom Reese – “Last natural bend in lower Duwamish at Kellogg Island” – all other images, unless noted, are by Reese as well.
The idea of using art to express historical stream routes is a powerful and simple method for connecting people with hidden hydrology. There are many such precedents, but a recent version I thought I’d mentioned comes from environmental artist Stacy Levy, as part of a workshop at Hunter College sponsored by NYC H20. I noticed this first on the site untapped cities, and it was covered in the New York Times the following day.
Levy took folks on a tour with some bonus artistic endeavors: “On Friday afternoon, using blue chalk paint, Stacy Levy plans to palpate a few sidewalks on the Upper East Side of Manhattan to visualize the path of a stream, now out of sight, that has been running since ancient times.” She used the 1865 Viele map of Manhattan, a much documented source of hidden streams in New York, as inspiration of the flows of the walk. A snip of one of the portions of the map, and a closeup of the 1865 map (which are probably somewhat close in content but somewhat stylistically different).
1874 Viele Map – via David Rumsey
As the NY Times mentioned, “Searching for the city’s vanished waterways has become a form of specialized detective work, much of which begins with the Viele Map.” From untapped cities: “Water is one of our favorite substances, yet we know very little about its ways,” says artist Stacy Levy. She explores hidden patterns of hydrology, drainage and microscopic life forms, from tiny microorganisms to large watersheds, using art to reveal the natural processes. This event will explore Levy’s collaborations with urban nature that meld art, engineering and ecology.”
Excerpt of 1865 Viele Map – showing location of tour – via David Rumsey
There’s also a bit of history from long-time buried creek explorer (both on the surface and as a drainer down in the pipes) Steve Duncan, who has documented this at his expansive Watercourses blog. He is quoted in the NY Times: “The stream being traced made its way along the east side of Manhattan, with some of it captured in a pond in the southeast corner of Central Park, and other branches eventually flowing into the East River at 47th Street. Historical texts show that a “kissing bridge” crossed it around 50th Street, and the name of the waterway appears to have been De Voor’s Mill Stream”
“A woman who was walking by, who works on the block, alerted us to the persistent nature of the puddle,” Matt Malina, founder of NYC H2O, told us. “I also overheard a mother say to her daughter as they walked by, ‘That’s why this is the mosquito block!’”
Photo courtesy NYC H20
The mystery was solved, again quoting ThisEastSide: “The building of Manhattan paved over many primeval brooks and streams. But some, like the De Voor Mills Stream under 64th Street, just want to be free. The puddle is a spring that feeds the stream. During heavy rains, it fills nearby basements with water. (A superintendent at one of the nearby buildings told Malina that he keeps a sump pump in the basement for such occasions.)”
Photo courtesy NYC H20
Part of Levy’s tour, where “…she recently took a group of volunteers to the site of the puddles (actually, there are two) and supervised their drawing of swirls representing the turbulent water under the sidewalks.” Seen below, tour goers and passersby joined in the fun, marking swirly water flow patterns on the old path of the buried stream. In typical urban fashion, the police were called, “concerned that the group was defacing the sidewalk. Their worries were dispelled upon learning that the medium was chalk. As it happened, the weekend rains washed away most of the drawings.” As author Froma Harrop concludes, “So the E. 64th Street puddle is actually a spring feeding the De Voor Mills Stream. Henceforth, let’s call the puddle a “spring.” A lot more elegant, don’t you think?”
The chalk paint is an interesting idea to engage without permanently marking – perhaps just to avoid getting the police called on you. The recent work in chalk is a more ephemeral version of Levy’s 2004 work Streamlines, which used permanent paint, glass beans, stone and bronze to mark 400 feet of waterway along paths at the North Carolina Zoological Park, Greensboro, NC
Photo Courtesy Stacy Levy
From her site:
“The hydrological patterns of the nearby stream were enlarged and painted onto the meandering path with road striping paint. Patterns of vortices were painted where the path curved or went past a manhole cover. Parallel lines of laminar flow depicted the straight portions of the path. These amazing patterns are invisible to the eye, but present in all flowing streams.”
Photo Courtesy Stacy Levy
From Levy’s website, it looks like there are plenty more inspirations for us to tap into, including one of her projects I’ve used countless times as a precedent for project, the fantastic Ridge and Valley at the Penn State Arboretum, with a stunning etched bluestone plaza with “a 924 sq. ft. map shaped like the Spring Creek watershed” fed by rainwater.
A quick visit to Portland this weekend didn’t feature much in the way of exploration, but it was a pleasure to stumble upon the Tanner Creek Tavern, a new restaurant in the Pearl District (corner of 9th and Everett) with a nice connection to hidden hydrology. The name says it all, but the spot has the distinction of housing some notable historical remnants celebrating Tanner Creek, including some maps and photos of the creek, which ran nearby for many of the early years of Portland’s history before being encased underground in the early 1900s.
