• This website includes dozens of videos, hundreds of essays, and thousands of drawings created over the past twenty years. Search to learn more about the history of buildings, places, prisons, Newark, New York City, and my PhD research on spatial inequality.

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A Drop of Water

Walking along Newark’s Pequannock Aqueduct from source, to tap, to sewer

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The general public views rural, suburban, urban, and industrial areas as being separate with different land uses, populations, and landscapes. The rural reaches and forests of northwestern New Jersey exist outside the imagination of Newark residents, as if these green mountain lakes with WASPy names have nothing to do with their lived urban experiences in the concrete and asphalt jungle. For the suburban and rural residents of West Milford, Ringwood, Wanaque, Bloomingdale, Kinnelon, Rockaway, Jefferson, Hardyston, and Vernon where Newark’s water supply originates, the experiences and troubles of Newark seem similarly distant, as if the quality of their forest oasis has nothing to do with the health outcomes of Newark residents. However, Newark’s century-old system supplies a half million people with clean water and invisibly knits together the fates of diverse communities along its buried path.

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Handmade drawing of Newark’s Pequannock water supply system, dated December 1892
The red line traces the path of the aqueduct from start at the Macopin Intake to end at South Orange Avenue. Green is the area of the watershed. The red graph beneath charts the relative height of the aqueduct above sea level at each point in the route. The aqueduct does not flow in a continuous downhill slope. Rather it hugs the ground just below the surface.

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Map of Newark water supply system in 1946, showing the Pequannock system opened 1892 (lower left) and Wanaque system opened 1930 (upper left). View full size map from Newark Public Library website.

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Over winter 2021, I documented the route of the Newark aqueduct from its origins in West Milford Township to its terminus in Newark Bay. I trace the path of Newark’s 26-mile-long aqueduct and 63-square-mile Pequannock Watershed and 94-square-mile Wanaque Watershed on the interactive map below.

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Click on water features to display details of name, dimensions, or volume.

■   Watersheds
■   Reservoirs (7 total)
~~ Aqueducts (~55 miles total)

■   Towns supplied with Newark water (~10)
■   Towns relying on Newark sewers (48)
~~ Main sewer interceptor (~ 28 miles total)
      Along path of Passaic River from Paterson to New York Harbor via Newark

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Notre-Dame of Paris Construction Sequence

Created with architectural historian Stephen Murray
As featured in:
1. Notre Dame’s official website
2. Open Culture, May 2021
2. Rebuilding a Legacy, hosted April 2021 by the French Embassy, view recording
3. Restoring a Gothic Masterpiece, hosted May 2021 by the Los Angeles World Affairs Council and Town Hall, view recording
4. Visual investigations of architecture by the French daily paper, Le Monde, December 2024, view film

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1. Construction time-lapse

This construction time-lapse illustrates the history of Notre-Dame from c.1060 to the present day, following ten centuries of construction and reconstruction. Model is based on actual measurements of the cathedral and was peer reviewed for accuracy by scholars at Columbia University’s art history department and at the Friends of Notre-Dame of Paris.
The film was created in the computer modeling software SketchUp, based on hand-drawn image textures. The ink drawings of nineteenth-century architect Viollet-le-Duc were scanned and applied to the model surfaces, so as to transform the two-dimensional artwork into the three-dimensional digital. I believe computer models should preserve a certain handmade quality.

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Music: Pérotin, Viderunt Omnes

View animation with music only.

Read text of Stephen Murray’s audio narration.

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2. Virtual reality computer model

Explore the interior and exterior of Notre-Dame in virtual reality.
Give thirty seconds for browser to load. Link opens in new window.
Complete model of Notre-Dame inside and out. Download includes simulation of cathedral construction sequence.

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Fire on 15 April 2019

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3. Research method and work flow

Learn how this model was created – and how to create similar models of your own – with my series of online tutorials shared to this page.

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4. Computer model and construction sequence sources

– Dany Sandron and Andrew Tallon. Notre-Dame Cathedral: nine centuries of history.
– Eugène Viollet-le-Duc. Drawings of Notre-Dame. From Wikimedia Commons.
J. Clemente. Spire of Notre-Dame. From SketchUp 3D Warehouse.
– Eugène Viollet-le-Duc and Ferdinand de Guilhermy. Notre-Dame de Paris. From BnF Gallica.
– Caroline Bruzelius. “The Construction of Notre-Dame in Paris” in The Art Bulletin. From JSTOR.
– Michael Davis. “Splendor and Peril: The Cathedral of Paris” in The Art Bulletin. From JSTOR.

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5. Exterior still images from model

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6. Interior still images

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7. Dynamic angles

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Homesteads to Homelots

The history of New Jersey suburbs as told through five data visualizations

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View of the city from the suburbs, author’s panoramic drawing of suburbs with urban skyline in the distance

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“The state of New Jersey offers an ideal setting in which to analyze the distinctive residential landscape of mass suburbia. [….] In time, 70 percent of the state’s total land area would qualify as suburban, so that by the turn of the twenty-first century New Jersey and Connecticut shared the distinction of being the nation’s most suburbanized states.”

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– Lizabeth Cohen, “Residence: Inequality in Mass Suburbia” in A Consumer’s Republic, p. 197.

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Northern New Jersey has long been central to the history of America’s suburban growth. From America’s oldest suburban developments to its most homogeneous to its most diverse, New Jersey’s 565 municipalities span the full portfolio of suburban living arrangements. New Jersey is unique in the sheer number of municipalities, each with its own elected leaders, school district, police, fire, and land use policies. As a result of inefficient and often duplicate public services in competing suburbs, New Jersey has some of the highest property taxes and cost of living in the country. This problem is not unique to New Jersey; it affects the country at large in dozens of other places. So the story of New Jersey makes for a powerful and revealing case study of larger trends in American suburban history.
This analysis examines New Jersey census data from 1940 to 2010. It is not the end point or a full analysis. Instead, each of these data visualizations plots a direction for future research. Telling history through maps and data reveals the history of a larger region and country, in ways that granular analysis of individual places cannot.

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Method

With data from the US Census Bureau, I extracted details on the population of every New Jersey municipality from 1940 to 2010, the period of greatest suburban growth. With spatial data on municipal boundaries from the NJ Office of GIS, I plotted the census data onto the map of municipal boundaries. This allowed me to see spatial patterns and to produce heat maps of population change over time. The spatial data also revealed the surface area of each municipality, which allowed me to calculate the historical population density of each municipality as a function of municipal population divided by municipal surface area. You can browse all the data visualizations or download the open source data here from Tableau. These data visualizations represent analysis of about 13,560 data points for 565 municipalities over eight censuses.

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Book Review of “Saving America’s Cities”

Lizabeth Cohen. Saving America’s Cities: Ed Logue and the Struggle to Renew Urban America in the Suburban Age.
New York: Farrar, Straus and Giroux, 2019. 547 pp.

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The memory of mid-century urban renewal will always evoke images of the bleak brick towers and windswept plazas of crime-ridden public housing. Urban renewal projects airdropped into the city fabric caused demolition and dislocation. This colossal failure has been epitomized by Robert Moses’ automobile-oriented vision of New York City. The Power Broker by Robert Caro described Moses stubbornly going alone to remove 1,500 families and pave the Cross Bronx Expressway through their vibrant neighborhood.[1] By contrast, in The Death and Life of Great American Cities, Jane Jacobs vividly described a sentimental city life with lively streets of safe neighborhoods. Pedestrians stroll along short city blocks while residents watch from brownstone stoops in her quaint Greenwich Village alleys.[2] The two polarized visions of activist Jacobs vs. authoritarian Moses have set the terms of the debate on city design and, by extension, about the government’s role in structuring urban life. Lizabeth Cohen, a Harvard historian of twentieth-century America, critiques the current dichotomy: “The lack of subtlety that I have lamented in current historical understanding of postwar American urbanism stems partly from its frequent framing as a monumental battle between the clashing visions of the villainous Robert Moses and the saintly Jane Jacobs.”[3] Between these two schools of thought, Cohen introduced the largely forgotten “Master Builder” Ed Logue to dispel misconceptions about urban renewal.
Logue serves a curious alternative to the polarity between Jacobs and Moses. Despite her biographical focus, Cohen does not lionize Logue’s dedication, but recounts his lifetime of successes, false starts, and imperfections. Logue came from a Philadelphia working-class family with an Irish Catholic background. Serving as a bombardier during WWII, he first experienced a top-down city vision from the air above Berlin and Dresden. Trained at Yale with a full scholarship, Logue was committed to the New Deal idealism of government serving the public good. His life, however, demonstrated how even the best of planners could not get the ill-conceived legal framework behind urban renewal to work most of the time. One reviewer of Cohen’s book asks in Architect Magazine: “How could such a clear-eyed, honest, and progressive guy, talented at getting lots of money from the federal government, oversee so many disastrous projects?”[4]
Through New Haven, Boston, and New York City, Cohen traces Logue’s city planning career of working against far larger anti-urban political and social forces. During his time in New Haven (1954-60), Logue planned to rescue the falling city by bringing suburban shoppers downtown. He built the Oak Street Connector for shoppers’ automobiles. This highway stub severed the urban fabric with an asphalt band of parking lots and uprooted a largely low-income Black community. However, Logue’s Chapel Square Mall in downtown New Haven, with indoor shopping and garage parking, never brought in enough enthusiastic suburbanites to survive against competing forces of anti-urban decentralization. What Logue called a “pluralist democracy” in New Haven planning actually relied more on experts’ work than on input from affected citizens.
Touting his approach of “planning with people,” Logue worked in Boston (1961-67) to break the city’s thirty-year economic stagnation. Unlike in New Haven, Logue created a “negotiated cityscape” of old and new in Boston and preserved some of the oldest architecture, such as Quincy Market. However, his ambitious Brutalist inverted ziggurat of the Government Center, next to a desolate brick-paved plaza, evoked an oppressive aura. His successful housing projects, particularly in the African-American Roxbury neighborhood, defied James Baldwin’s characterization that “Urban Renewal means negro removal.”[5]
Logue’s next career move (1968-75) landed him in New York City to lead the Urban Development Corporation (UDC) for 33,000 residential units, including thousands of affordable housing. After the “long, hot summer of 1967” with riots in 159 cities, President Nixon formulated his “suburban strategy,”[6] by appealing to suburban Whites’ fears of the inner city and Black insurrection. In a hostile climate, Logue encountered his political match from suburban residents. The wealthy Westchester towns vehemently opposed Logue’s attempt to place middle income and affordable housing in their backyard. The downward spiral of urban America became unstoppable. Neither urban renewal, nor affordable housing, nor highway construction could restrain the core middle urban tax base from driving away to the alluring American dream of “little boxes on the hillside,”[7] with “a chicken in every pot and a car in every garage.”[8]
Ousted from UDC, Logue settled for the final stage of his career (1978-85) at the South Bronx Development Organization. To revive the South Bronx with affordable housing, Logue no longer turned to demolition, as the urban fabric had already been devastated by arson, blight, and White flight. Logue recognized that the government had ceased investing in shopping malls, city halls, or intensely designed architecture. Instead, as if admitting the defeat of high-density urban development, Logue worked with residents to rebuild formerly urban Charlotte Street along suburban models of prefab homes with white picket fences. In a thriving nation of suburbs, the suburb had now come to the city.
Logue’s career capstone in the South Bronx was not polished architecture that he preferred, but the development that people desired. Community participations brought all stakeholders to the table, as Logue increasingly practiced. Over time, he realized that the top-down approach taken by urban redevelopment experts had serious limitations. People in the affected neighborhoods deserved to realize their vision of urban communities diversified with respect to income, race, and age. Their voices were the best insurance for equitable services for schools, transportation, retail stores, and affordable housing.
As Cohen asserts, Logue and urban renewal defy fast judgments. Across each decade, and in each of those three cities, Logue’s urban renewal had shifting goalposts, developed at various scales, and involved different levels of community participation. To attribute the flaws of urban renewal to arrogant individuals or to austere designs for “towers in the park” is to ignore the larger picture. As Logue’s battle for affordable housing in suburban Westchester revealed, the problem rests less with urban renewal itself and more with the nation’s social, economic, and political agenda against cities.
Throughout his career, Logue’s honorable goals proved impossible. With the Cold War fever in the ‘50s, the erosion of social tenets in the ‘60s, and post-Watergate suspicions against authority in the ‘70s, American public ceased to believe government had a mandate to bring about a just and equitable society. In his 1981 inauguration address, President Reagan expressed the core of the conservative belief: “In this present crisis, government is not the solution to our problem; government is the problem.”[9] During his final years, Logue watched helplessly as America increasingly turned to private investments for deteriorating infrastructure, eroding affordable housing, and shrinking essential services. Contemporary cities are defined by accumulated wealth, racial disparity, and privileged consumption. Even with Section 8 vouchers and “inclusionary” zoning, affordable housing is largely unavailable to diverse communities.[10]
The intriguing story of Logue’s life suggests that the fate of cities cannot be left solely to top-down developers or government bureaucrats or market forces. A process of negotiation is needed in order to bring all interests to the table. A spirit of experimentation defies an authoritarian way to remake cities. Paradoxically, to respond to a national emergency, Logue, a lifelong New Dealer, believed that the federal government’s pivotal role is essential for successful negotiations and experimentations. This would be the legacy of urban renewal, as Cohen concludes, that “the master builder” would want us to honor.

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Endnotes

[1] Robert Caro, Robert Moses and the Fall of New York (New York: 1974).

[2] Jane Jacobs, The Death and Life of Great American Cities (New York: 1961).

[3] Lizabeth Cohen, “Saving America’s Cities: Re-evaluating the complex history of urban renewal,” Public Seminar, October 1, 2019. https://publicseminar.org/essays/public-seminar-excerpt-and-interview-lizabeth-cohen/

[4] Elizabeth Greenspan, “Ed Logue and the Unexpected Lessons of Urban Renewal: A biography of the forgotten ‘master rebuilder’ challenges established truths about city planning,” Architect Magazine, January 29, 2020. https://www.architectmagazine.com/design/ed-logue-and-the-unexpected-lessons-of-urban-renewal_o

[5] James Baldwin interview with Kenneth Clark, 1963. https://www.youtube.com/watch?v=T8Abhj17kYU

[6] Matthew D. Lassiter, The Silent Majority: Suburban Politics in the Sunbelt South (Princeton: 2006).

[7] From the song “Little Boxes” written by Malvina Reynolds in 1962, sung by Pete Seeger in 1963

[8] From Herbert Hoover’s 1928 presidential campaign slogan

[9] “Ronald Reagan Quotes and Speeches,” Ronald Reagan Institute. https://www.reaganfoundation.org/ronald-reagan/reagan-quotes-speeches/inaugural-address-2/

[10] Kenneth Jackson and Lizabeth Cohen, “Urban Renewal in the Suburban Age: The Struggle to Redefine the American City,” Brooklyn Public Library: Center for Brooklyn History, October 23, 2019. https://www.brooklynhistory.org/events/urban-renewal-in-the-suburban-age-the-struggle-to-redefine-the-american-city/

Imagining a world after the coronavirus

Co-created with the Architectural League of New York

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The converging and ongoing crises of COVID-19, climate change, radical economic inequality, pervasive racism, and racist violence require that all systems, infrastructures, and institutions, including architecture, space, and cities, be reimagined. This reimagining must include how and to what ends architecture, landscape architecture, and urban design can act in the world.
This workshop, organized by The Architectural League of New York, brought architects, planners, and historians in conversation to listen to each other, identify critical issues, and develop ideas about what might and should be done.

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After the virus ends, millions will become used to – and even prefer – work from home. Employers downsize offices. Fewer people commute by car. Our now overbuilt highways and airports will be restored to nature.
Now thousands of vacant offices and buildings will be too expensive and energy inefficient. Abandoned towers, malls, airports, and arenas will become ruins, a modern Acropolis.
Instead of flying to Europe, eco-friendly tourists visit this new “Museum to American Civilization.”
Demolished highways and buildings in flood zones will become landfill. The sedimentary layers in these landfill mountains will be a geological history of American civilization in the Anthropocene.

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Credits

Directed by Tak Ying Chan
Written by  Myles Zhang
Narrated by Natsume Ono
Image credits
Tak Ying Chan (NYC Subway)
Tal Fuerst (Little Italy, Manhattan)
Natsume Ono (Ann Arbor, Michigan)
Hayden Bernhardt (Birmingham, Alabama)
Myles Zhang (NJ Meadowlands)
Special thanks
Julio Salcedo-Fernandez
The Architectural League of New York

The time-lapse history of Manhattan in two minutes

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This two minute time-lapse reconstructs the 400 year evolution of Lower Manhattan’s skyline. Watch as the city evolves from a small village into a glistening metropolis.
This is also a film about the history of technology. Changing methods of representing urban space influence our perception of time and the city. When New York City was founded, Dutch settlers captured their town’s appearance through seventeenth-century drawings and paintings. As the city grew, people started using printing presses to reproduce images of the city in the eighteenth and nineteenth centuries. In the twentieth century, photographers started capturing their city from above through aerial photos. For the first time, New Yorkers could view the entire city in a single panoramic photo.
In tribute to this long artistic tradition, this film constructs the city as each generation of New Yorkers would have represented it: through the subsequent technologies of drawing, printing, photography, and film.
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New York City: Past and Present, 1870 and 2017

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Sound effects from Freesound
Water and cloud effects from YouTube

Demolishing Public Space at New York Penn Station

What does old Penn Station’s loss reflect about the evolution of public space in New York City?

Written with Evander Price, recent PhD student in American Studies and chronocriticism at Harvard. Thanks also to Adam Brondheim for his insights about historic preservation in NYC.

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Download this essay as a PDF file

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The old waiting room, [1] once the largest indoor public space in New York City, is now a parking lot. [2]

Demolition crews began hacking away at the limestone walls, stone eagles, and thirty-foot tall Doric columns of old New York Penn Station in October 1963. In a construction industry where architects typically quote projects as lasting eighteen months, the demolition and rebuilding of old Penn Station lasted five years. At its 1910 opening, old Penn Station was the largest and most expensive infrastructure project ever built in New York City. The station’s associated service tunnels stretched 5.5 miles under the Hudson and East River. At 350 feet long and 150 feet high, old Penn Station’s waiting room was the city’s largest internal space. Construction cost $100 million, or $2.7 billion in 2020 adjusted for inflation. By 1963, this was the largest and most expensive structure ever demolished in New York City.[3]
In a 1963 conversation with The New York Times, the developer justified demolition as “putting passengers first” and then clarified: “The outside is the only thing of artistic value as far as I’m concerned. The handling of 200,000 passengers is much more important to me. […] In some areas the land is just too valuable to save anything that doesn’t fully utilize it.”[4] The developer’s aspirations for Penn Station’s replacement, however misguided, were no less monumental in their imagination: to construct a profitable office skyscraper and Manhattan’s largest arena for sporting events and conventions. Office workers and event spectators could move directly from trains to their seats without stepping outside, or engaging with the public space of the city streets.

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1968 advertisement for the new station [5]

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“The fact is that the redevelopment of the Pennsylvania Station into a $90 million building complex will transform the area from a static uneconomic burden on the railroad into a viable commercial and recreational center of benefit to the entire West Thirty-fourth Street neighborhood and the public at large.” – Allen J. Greenough, Pennsylvania Railroad President.[6]

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Architects have long positioned the demolition of monumental old Penn Station as a key moment in the discourse on historical preservation. This was, to quote leading New York City historian Kenneth Jackson, the moment when: “Human beings, myself included, have an unfortunate tendency to appreciate people and things only after they are gone. Pennsylvania Station is the catalyst for the historic preservation movement.”[7] The public realized that even a monument as expensive and permanent as Penn Station could vanish with no mechanism for the public to object. Activists pressured the city government to pass New York’s first ever landmarks preservation law in 1965.[8] Some historians, like Anthony Wood, have posited that the movement toward landmarks preservation began years before Penn Station’s demolition, and that this demolition was not critical in motivating landmarks preservation.[9] Nonetheless, in the following decades, the city protected over 120,000 historic buildings (comprising about 14% of New York City’s built environment).[10]
Less cited and discussed is how Penn Station’s loss parallels a larger late-twentieth-century trend to erode and privatize the commons. The demolition and rebuilding of old Penn Station is a lens to examine the competing tensions of economics vs. aesthetics and private vs. public interests. The demolition and reconstruction of old Penn Station mirrors the larger abandonment of government and corporate responsibility for maintaining and upholding public space.

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Although Midtown’s largest building in this c.1911 photo, skyscrapers soon surrounded Penn Station.[11]

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Excavating Old New York Penn Station

Also published by Viewing NYC in May 2019

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“Through Penn Station one entered the city like a god. Perhaps it was really too much. One scuttles in now like a rat.”
– Vincent Scully

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View of Penn Station from roof of Macy’s department store c.1910

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“Human beings, myself included, have an unfortunate tendency to appreciate people and things only after they are gone. Pennsylvania Station is the catalyst for the historic preservation movement.”
– Kenneth Jackson

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The accompanying audio is accurate to what the place sounds like from the locations shown. The audio for old Penn Station is my imaginative reconstruction of how the original station might have sounded like, based on recordings from MoMA. My project was also inspired by this 2015 New York Times article about the subtle influence of sound on how we experience urban space: “Penn Station’s low ceilings suppress sound, which becomes hard to make out, an audible metaphor for its rat’s maze of architecture.”

 

“You feel that your life is being lost in a room where sound dies. We need reverberation.”
– architect Renzo Piano on the design of the current Penn Station

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When New York Penn Station opened in 1910, the Pennsylvania Railroad boasted in advertisements that their vast new station was built of travertine marble from the same ancient Italian quarries as the Coliseum and Pantheon. Old Penn Station was rich in the architectural language of Greece and Rome. The façade comprised a colonnade of massive, Doric columns that stretched almost 450-feet end-to-end; it was inspired from temples on the Greek Acropolis. The main waiting room, at 314-feet-long, 109-feet-wide, and 150-feet-high, was modeled on Rome’s Baths of Diocletian. The project was as much an aesthetic gesture to the emerging City Beautiful Movement as it was a political statement: The Pennsylvania Railroad was here to stay, as permanent as the Penn Station it built.
The finished station, however, was an architectural contradiction. The Neoclassical exterior concealed what was, belowground, an extensive and, at-the-time, hyper-modern system of tunnels, electric trains, and communication systems that conveyed millions of people, baggage, and mail from street-level to each of 21 platforms. Aside from the solid stone columns of the main façade, most of the interior was of thin limestone, marble, and plaster sheets mounted on a metal structural frame. The seeming permanence of the stone walls was a cover for the steel frame and modern technology within on which this Neoclassical stage-set rested.

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Just over fifty years later, on October 28, 1963, demolition began. The Pennsylvania Railroad, burdened with debt and aging infrastructure, was selling off its most profitable real estate assets – its land, buildings, and equipment – to stay afloat until it declared bankruptcy by 1970. Through the same two Hudson River tunnels that building materials for the original Penn Station were delivered, some of the same rubble now passed. Much of this rubble was carted off and dumped in the New Jersey Meadowlands adjacent the tracks where commuter trains still pass. The Pennsylvania Railroad used, quite literally, the station’s technology to cannibalize itself, and as the foundations for the new, and current, Penn Station.
Searching for remnants of old Penn Station, I found historic photos from the New York Public Library, Historic American Buildings Survey, and Library of Congress. I returned to the same locations in fall 2019 to re-photograph these images from the identical camera angles. The resulting and visible ghost of the lost Penn Station presents a strong-clear vision of what Penn Station used to be, and by extension, what it could return to, given financial commitment and political will.

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Train concourse: past and present from the same location

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The current subterranean warrens represent a clean break from what was here before. As long as Madison Square Garden chokes Penn Station for air and light from above, the current lightless and oppressive Penn Station is here to stay. The current station’s cheap ceilings of corrugated metal, garish electric signage, and exposed concrete floors ironically proved more durable than the Roman marble and limestone of old. The current station is not so fleeting and has, in fact, existed longer on this site than the station before it.
Surprising still is how, for many New Yorkers, it seems inconceivable that the permanent and imposing appearance of the original station could, one day, vanish without a trace. This old station is more dream than reality, and it seems almost impossible to imagine the current arrangement as having anything to do with what came before. So little of the original station – and the pride in civic life and New York City this station stood for – remains visible. Interestingly, more of the original architectural fabric survives belowground than meets the eye aboveground.

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View from corner of 31st Street and 7th Avenue in 1962 and 2019. The structure is unrecognizable aboveground.

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32nd Street entrance to waiting room in 1962 and 2019
The southeast corner of the still-standing General Post Office is in both frames, in the far left hand distance.

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In the five years that demolition and rebuilding lasted (from 1963 to 1968), Penn Station remained in active service. While builders demolished the old station above, commuters continued to pass by on the platforms and corridors below. For this brief moment, the two buildings lived side-by-side, until the present building swallowed almost all visible traces of the past. In spite of this loss, the confusing floor plan of the current Penn Station has much to do with remaining traces of the original. Column for column and void for void, the current Penn Station is built within the fabric of the original. The old Penn Station, completed 1910, had 21 tracks on 11 platforms. The new Penn Station has 21 tracks on 11 platforms. In the demolition process, not one track or platform moved. In the five-year re-construction process, none of the tracks and platforms were moved, and most of the stairs between concourse and track-level survived. This similarity enables us to situate parts of the old structure in relation to the new.

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Frame of new Penn Station rises simultaneous to the demolition of the old c.1963-68
Passengers in train concourse as new structural frame divides them from the soon-to-be-demolished glass canopy of the old station.

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Train concourse before and after insertion of the new structural frame, from the same camera angle

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The above cross-section of old Penn Station’s waiting room shows the extent of change. The orange line indicates the elevation at ground-level to which the architectural fabric of the old building was demolished. Above this line, nothing of Penn Station survives. Below this line, most of the original structure, tracks, infrastructure, stairwells, and the general contours of the original rooms survive, except now hidden.
After the Roman Empire collapsed, its architectural monuments to empire and power fell into disuse; many were repurposed for more humble and practical purposes. The Coliseum became a stone quarry, the Roman Senate House a humble church, and the Theatre of Marcellus a medieval fortress. New purposes were developed in the shells of old monuments. When a building is reused and altered but still bears visible traces of its earlier form, architectural historians call this creation a palimpsest. A palimpsest is neither of the present nor of the past; it is a mixture of both. For instance, the two square fountains of the 9/11 Memorial in Lower Manhattan mirror the locations of the now-vanished Twin Towers. For a modern and young city in world terms, Penn Station is New York City’s largest palimpsest.

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Shopping arcade in 1911 and 2019

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View from 7th Avenue shopping arcade into the waiting room in 1911 and 2019

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“Cutaway illustrating the principle of adaptive reuse.” Drawing by architectural children’s book illustrator, David Macaulay, proposes to discard the “non- functional” spaces of the medieval cathedral by erecting a Styrofoam drop ceiling just above the floor. Everything above – light, soundscape, and ornament is “superfluous” to the cathedral’s function.

The oppressively low ceilings of the current station are the structural division between the public areas belowground and the now private (formerly public) areas aboveground. These ceilings also align to the border between the infrastructure of the original station that survives and the architectural fabric that was lost.
The Pennsylvania Railroad made the decision that made the most economic sense: to keep the infrastructure beneath and decapitate the “non-functional” aesthetics of the soaring ceilings and open spaces aboveground. This was valuable land that could be put to more profitable use. Into these empty “air rights,” the corporation could insert Penn Station’s new functions of Madison Square Garden and office towers that would, at last, generate additional income. While exploring the station, I discovered this palimpsest valued the practical and made absolute economic sense: Who needs to enter the city on the scale of a titanic-sized god when humans require spaces no higher than 8-feet-high to pass through?

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A cathedral with a drop ceiling

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The shopping arcade in 1911 and 2019
Statue of Samuel Rea is in the shadows.

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President Samuel Rea

The nuances of this palimpsest become clearer from inside the building. Passengers entering the old station proceeded down a long shopping arcade to the waiting room and platforms. What was once public space is now the private lobby of the commercial offices aboveground. On the right hand side, in the shadows of the private lobby, stands a statue of Samuel Rea, president of the Pennsylvania Railroad. A century ago, Rea stood at the entrance and welcomed passengers and the public; he now stands and watches the corporate clients and office workers. In old Penn Station, an inscription beneath announced his name and title. In the current location, Rea is out of place and has no relationship with his surroundings; the once prominent inscription is almost invisible on the new tablet behind him.

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Statue of Samuel Rea is in the left hand niche.
Almost stone for stone, the location of the current waiting room escalator mirrors the location of the original.

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Main entrance to waiting room: The left hand niche contains the statue of Alexander Cassatt, Pennsylvania Railroad president during construction.

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The waiting room, once the largest indoor public space in New York City, is now a parking lot.

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From the street-level arcade, passengers descended into the cavernous waiting room, sunken a few feet belowground. While the room itself is gone, the contours of this room survive in the general footprint of the sunken parking lot that now occupies the site. What was once public space is now private and patrolled by Madison Square Garden security guards who forbade me from standing at this location with my camera.

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Perhaps, beneath this asphalt parking lot, fragments of the original waiting room floor remain.

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Train Concourse

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Train concourse, past and present.
White cutouts on the drop ceiling mirror the former locations of the demolished skylights.

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This part of the train concourse is now the VIP entrance for spectators at Madison Square Garden.

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The design problems with the current Penn Station are similar to those of old Penn Station: too few tracks, too many passengers, confusing circulation, and outdated infrastructure. After all, it is not the engineering and infrastructure that set these two buildings apart, as brick-for-brick and beam-for-beam, the 1960s rebuilding did not generally alter the areas belowground. This early-twentieth-century infrastructure was, after all, designed to handle no more than 200,000 passengers-per-day, and yet now struggles under the burden of 650,000-per-day. Instead, it is the envelope around this infrastructure that was rebuilt in the 1960s, and whose loss the public and historians now mourn.

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At track-level, the railroad ties, location of the third rail, and support columns are original to 1910. The columns in the foreground were added in the 1960s to support the weight of Madison Square Garden. The columns in the distance are original to 1910. The 1960s modernist buildings above conceal below what is, in essence, early-twentieth-century infrastructure.

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View from Track Six

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Generations of New Yorkers hoped Penn Station would one day be restored with an architectural monument befitting New York City and the Western hemisphere’s busiest train station. In addition to rebuilding the General Post Office next door, other proposals over the years have called for rebuilding Penn Station exactly as it appeared before, or imagining a futuristic Penn Station emerging from the structural shell of the current Madison Square Garden, entitled “Penn Station Palimpsest.” Precedent exists for both proposals. Some post World War II cities rebuilt their monuments and bombed out city centers as they appeared before (such as Dresden and Warsaw), while others incorporated the rubble of the lost buildings into a modern building (such as Coventry Cathedral in England and Kaiser Wilhelm Memorial Church in Berlin). What we miss about old Penn Station was not the infrastructure, operations, or even the building itself, but rather the way this architecture made us feel dignified, and which we feel no longer.

All New York City in one drawing

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The scan above is suitable for viewing but not for large-format printing. Please request access to the full-size scan at ~400dpi

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This ink on paper drawing represents 800 hours of work over several months. The dimensions are 45 inches high by 79 inches wide (114 cm by 201 cm).
This panorama shows NYC looking northwest from above Governor’s Island and Red Hook. The Statue of Liberty, Ellis Island, and Staten Island are outside the frame. The view is accurate as of summer 2017 and does not include buildings built after this time.
View on Google Earth where this image is taken from.
The image features ~4,493 buildings. For the largest and most important buildings, more attention is paid to detail. All of Manhattan’s bridges and major parks are included. Any buildings excluded were done so because they were either too small, too distant to include, or not visible from the angle this image is taken.

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Image Inventory

● 1,769 buildings in Manhattan
● 436 buildings in Brooklyn
● 1,072 buildings in Queens
● 76 buildings in Bronx
● 1,140 buildings in New Jersey
● 9 construction cranes
● 25 water features
● 28 churches
● 47 ships
● 56 bridges
● 74 water towers
● 348 cars
One metropolis
5,080 features of the built environment shown

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Riding Professor Kenneth Jackson’s all night bike tour through Gotham’s history inspired this image. Traced in orange below is the route of Jackson’s bike tour: starting at Columbia University’s Low Library, through Central Park, across Midtown to Washington Park, along the Hudson River to Wall Street, and then across the Brooklyn Bridge.

Drawing with route of Kenneth Jackson’s bike tour

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What gave me the idea for this project?
My goal in ten years is to research and teach about art history and urban studies. Unfortunately, most aspiring professors do not get to choose the city where they work. Because I might not have the privilege of working near New York City, I wanted to draw a keepsake of all my youthful memories and experiences here. I have a photographic memory walking through the city. So I have memories that relate to all the buildings shown. I plan to frame this on the wall above my desk.

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What was the most difficult part?
Because the image is ink on paper, there is no way to erase a mistake. At the later stages, any slip of the pen might have destroyed several months of work.
I am delighted with the result, but the process was tedious and required drawing thousands of windows. I never counted how many. I could only work a few hours per day before becoming exhausted. I will never attempt a drawing like this again because it is so time-consuming, and I am unlikely to ever find myself trapped again at home for such a long period of time. Fortunately.

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Has the current pandemic changed how I think about NYC?
The pandemic is forcing me to appreciate NYC from a distance. Even if I am afraid to ride public transit, this drawing – and the experiences it represents – will always be a part of me.
I can see this pandemic slowing down some gentrification and keeping the built environment similar to my drawing for a good few more years. I am just afraid that, with so many businesses closing, the city might emerge from this pandemic unfamiliar to how I remember it in this drawing.

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Annotated Map

Click red label to view detail area in detail.

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St. Paul’s Cathedral Dome: a synthesis of engineering and art

Developed with James Campbell, architectural historian at the University of Cambridge
Inspired by taking George Deodatis’ lectures on The Art of Structural Design
at Columbia University’s Department of Civil Engineering

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In 1872, Eugène-Emmanuel Viollet-le-Duc, the French author and architect celebrated for restoring Notre-Dame of Paris, wrote in his Lectures on Architecture that the form of the Gothic cathedral was the synthesis of the early Christian basilica and the Romanesque three-aisled church. In this analysis, Viollet-le-Duc reasoned that a thesis (early Christian) plus an antithesis (Romanesque) produced the synthesis (Gothic).

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Animation from Stephen Murray

Although the history and origins of Gothic are more complex than Viollet-le-Duc’s formula, this formula provides a method to dissect the Renaissance and Enlightenment counterpart to the medieval cathedral: the Greco-Roman basilica, as embodied by St. Paul’s Cathedral, constructed from 1675 to 1711 by Christopher Wren (1632-1723). St Paul’s is a symbol of Enlightenment-era London, built to rival its medieval counterpart of Westminster Abbey.
In this essay, and in my analysis of this neoclassical cathedral, I will parallel Viollet-le-Duc’s analysis of the medieval church. The thesis is that St. Paul’s is a work of techno-scientific engineering. The antithesis is that this building is a work of art that speaks to the larger cultural moment of Enlightenment London. The synthesis is the dome of St. Paul’s that merges these two forces of engineering and art into a unified and impressive creation.

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Thesis: ENGINEERING
The engineering of this dome is more complex than meets the eye.

In this animated construction sequence, view how the dome was engineered.

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Music from the organ (William Tell’s Overture) and bells of St Paul’s (recorded 2013)

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St. Paul’s Cathedral features an innovative triple dome structure. On the circular drum, the inner dome rises and is visible from the cathedral interior. Above this inner dome, a brick cone rises to support the 850 ton lantern. This brick cone also supports the wood rafters and frame of the outer dome, which is covered in wood and lead. This three dome system allows the cathedral to support such a heavy lantern, all the while maintaining the great height needed to be a visible London landmark.
  • Inner dome – visible from inside and purely for show; height 225 ft (69m)
  • Middle brick cone – a brick cone that is invisible from below but supports the 850 ton lantern above; height 278 ft (85m)
  • Outer dome – a wood and lead-roofed structure visible from the cathedral exterior; height 278 ft (85m)
  • Lantern – an 850 ton stone lantern and cross, whose weight is carried to the ground via the middle brick cone 365ft (111m)
The inner and outer domes are decorative, while the brick cone is the true weight-bearing support. The model below is created from measured plans and is accurate to reality.

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Virtual Reality Model
(click to play)

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