Tag Archives: travel

Breaking News: Fern Hollow Bridge Collapse

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A bridge collapsed in Pittsburgh this morning. While not an iconic bridge, the Forbes Avenue Bridge over Fern Hollow was significant as the sole road link over Frick Park. With this link missing, motorists and those using public transit will have to travel several miles out of their way through some very congested roads. Pedestrians and bicyclists have some shorter options using the park’s trails.

The bridge was built in the early 1970s and as far as I know has not had any significant maintenance work done since then. It is owned by the City of Pittsburgh. Based on the National Bridge Inventory by the Federal Highway Administration, the bridge was in “Poor” condition, had an inspection frequency of 18-24 (units were not included, hopefully this is months), the structural evaluation was “Minimally Tolerable,” the substructure was rated “Satisfactory” while the superstructure was rated “Poor,” average daily traffic was 10,000-15,000, and the detour route would add 2-5 miles. In addition, this site estimates the replacement cost at $6.5 million. I could not find the date of the last inspection on the NBI site. Based on a summary of inspections on BridgeReports.com, which sites the NBI as its source, the bridge was inspected every two years between 1991 and 2017, so presumably there were additional inspections in 2019 and 2021.

There was a bus and some other vehicles on the bridge when it collapsed. The two passengers on the bus were taken to a hospital with “minor injuries” as was a third person. Seven other people are reported to have “minor injuries” that did not require a hospital visit. The City’s first official press release on this disaster says that rescue efforts concluded at 8:30am, but that underneath the bridge was still being checked for potential victims – some of the park’s well-used trails pass underneath. WTAE has videos from the scene; the Tribune Review has quotes from nearby residents on what they heard and saw this morning. This story has also made national news with coverage by on the US News and World Report website.

The coincidences: President Biden is scheduled to speak in Pittsburgh today about infrastructure, including bridge maintenance, the overnight snow may have limited vehicular and foot traffic over and under the bridge, and I just happened to be somewhere where the news was on this morning in time to see the first news report on WTAE (I never watch or read the daily news).

Mayor Gainey is quoted as saying “we were fortunate.” The people using the bridge were unfortunate that the bridge collapsed when it did, but given that it did collapse, they were fortunate in that it appears there are no serious injuries and no deaths. It was also fortunate that the collapse happened before rush hour and on a bridge that was over land. If this was one of our river bridges or if it happened during rush hour, serious injury and death seem impossible to avoid.

Deferred maintenance of bridges is a real and serious thing. Bridges are a crucial part of our daily lives (especially in places like Pittsburgh). Every time I walk over the Negley Ave bridge over the busway, I warily eye the rusted structure. The old Highland Ave bridge over the busway used to spark the same reaction, but it was fortunately replaced several years ago. The Smithfield Street bridge has holes through the sidewalk. How far do we push our “poor” condition bridges before investing in maintenance and repair?

Then & Now: 16th Street Bridge

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urbantraipsing turns 10 in May. To mark a decade of urban-traipsing and bridge-walking, I will be revisiting twelve of the Pittsburgh bridges I walked early on to see the changes 10 years brought to them and their surroundings.

I started walking and photographing bridges to get different angles and views of the city. In 2012, the 16th Street Bridge provided views of two major, controversial development sites: the Produce Terminal and the former St. Nicholas Croatian Catholic Church.

During the summer of 2012, the Produce Terminal seemed on the cusp of being redeveloped, and partly demolished. However, significant opposition to the demolition plans killed that proposal. For years there was no visible progress. Eventually, after extensive negotiations, a new development proposal was approved and implemented (see the first photo pair below). Simultaneously, several new developments popped up nearby, replacing much of the sea of parking I complained about in my original post on the bridge (see the second and third photo pairs below).

The former St Nicholas Croatian Catholic Church was visible from the 16th Street Bridge in 2012. Six months later, it was demolished to make way for the widening of Route 28 despite parishioners efforts to save their church (see a 2013 Tribune Review article for more). I followed the story of their fight for their building closely at the time, which is what I believe prompted me to take a photo of the church from the bridge (see the fourth photo pair below).

View of inland side of Produce Terminal (Smallman St)
June 2012
View of inland side of Produce Terminal (Smallman St)
January 2022
View of the riverside of Produce Terminal – June 2012
View of riverside of Produce Terminal – January 2022
Southwest view from 16th Street Bridge – June 2012
Southwest view from 16th Street Bridge – January 2022
View of the former St Nicholas site – June 2012
View of the former St Nicholas site – January 2022

A Structurally Unsound Bridge

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This year’s Architectural Dessert Masterpiece was inspired by a trip to Vermont where I explored 14 covered bridges within an hour’s drive of Rutland. I was surprised by the amount of variety in these bridges. Most were only wide enough for one car lane, but one was definitely made for two-way traffic and a couple had sidewalks incorporated. The colors and shapes varied from bridge to bridge. Some appeared to be based on a truss-type structure while at least one looked like it had an arch infrastructure. Ages also ranged from the 1830s (Taftsville Bridge) to 1970s (Quechee Bridge). You can view all 14 bridges in the slideshow below.

Sadly, shortly after construction, my covered bridge experienced a collapse. While the incident is still under investigation, an anonymous authority stated that the collapse is believed to have been trigged by a motorist exceeding the posted 5 mph speed limit.

I’m surprised that this is my first total collapse over the eight Architectural Dessert Masterpieces that I’ve created. My first, the Parthenon, experienced a partial collapse that actually made it look even more like the original. The next closest to disaster was the Marina Tower that merged into the Leaning Tower of Pisa.

The collapse highlighted several tips for future constructions. First, I confirmed that pretzels really do make excellent piers as I originally demonstrated in my Pittsburgh suspension bridge. Second, I learned that wheatless gingerbread still has the same (or similar) strength as traditional gingerbread as the roadbed remained secure throughout the disaster. Third, I found that wheatless gingerbread is more pliable than traditional gingerbread, which resulted in more warping when transferring the pieces to the baking sheet and during baking. However, the other side of the pliability is that it is easier to trim after baking than traditional gingerbread. If I use this recipe again, I will plan to make adjustments to the dimensions of the pieces post baking. I believe that will resolve the structural issues by creating straight edges that can support each other.

Vermont Covered Bridge Slideshow
  • Worrall Covered Bridge
  • Brown Covered Bridge
  • Cooley Covered Bridge
  • Bartonsville Covered Bridge
  • Depot Covered Bridge
  • Gorham Covered Bridge
  • Hammond Covered Bridge
  • Kingsley Covered Bridge
  • Lincoln Covered Bridge
  • Middle Bridge
  • Quechee Covered Bridge
  • Sanderson Covered Bridge
  • Taftsville Covered Bridge
  • Kissing Bridge

Hebron Snow People

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Pittsburgh dinosaur hunting is on pause this month. Instead, the public art feature of this month is from Hebron, CT. Hebron is a typical small Connecticut town built up at a crossroads. It was incorporated in 1708 and its current population is just under 10,000. In passing through on a recent trip around New England, my eye was caught by a public art display of snow people on the town green. I originally assumed that this was one of the fiberglass fundraisers like the Pittsburgh DinoMite Days dinosaurs, however these snow people are made of Styrofoam. However, like the fiberglass statues, each one is decorated by a different artist. They seem to be a new annual tradition of the town, having first appeared in the winter of 2020 then hibernating over the summer before returning this winter. Scroll through the slideshow below to see all eight of the snow folks (my favorite is the hula dancer).

Rutland’s Bridge

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While wandering around Rutland, Vermont’s third largest city coming in at around 16,000 residents, I found a bridge. Naturally, I walked across it. The bridge connects the worker housing on the flats to the cultural/civic center on the slope beyond which are the wealthier residences. In addition to overcoming the obstacle of the elevation change, the bridge spans the remnants of the formerly extensive rail yard much of which has been converted to a shopping center.

There was also a railroad bridge near the other end of the shopping center. By the time I found this bridge I was hungry, overcome by the humidity, and over a mile from where I was staying. A little farther on were some creeks that probably have bridges over them. I’ll have to look for those the next time I’m in town.

Rutland’s Public Art

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Rutland is a small town in Vermont of just over 15,000 residents incorporated in 1892. At one point, it was a major railroad hub for local marble quarries. Its past and present is clearly reflected in its public art.

Instead of the fiberglass sculptures I stumble upon in many cities, in Rutland, I discovered a series of marble sculptures featuring important people from Rutland. The people honored in the sculptures I found are Paul Harris, founder of the first Rotary club; Andrea Mead Lawrence, an Olympic skier; William G. Wilson, co-founder of Alcoholics Anonymous; the immigrants who worked in the quarries; and Martin Henry Freeman, an African American educator and abolitionist.

Today, Rutland has a strong environmental and arts focus. In my wanderings, I discovered two sculptures from the Trash2Art series, one from the HeART of Rutland series, and several murals. The mural of whales was particularly eye-catching given that the ocean is hours away. I wondered about the choice of subject until I saw the closest cross street was called Wales Street. The moose just up the street were almost as elusive as real moose – despite multiple trips to Vermont and one to Alaska, I have yet to see a live moose.

Beechview Bridges

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Beechview is a neighborhood built on the crest of a hill and spilling down all the sides of the ravines and runs. It claims the steepest paved car “accessible” street in the US, if not the world. Traveling in almost any direction around or through the neighborhood includes an uphill portion. It is a place where anyone driving without chains ought to call in sick or request to work from home after a snow or ice storm to avoid sliding back down the hill when attempting to leave the neighborhood.

Bridges are used to create more level routes, spanning hillsides, runs, and dips. However, none of the two and a half bridges in the neighborhood are for cars. (The half bridge crosses the city boundary into the neighboring borough of Dormont.) The bridges are for the “T”, the local light rail system. Cars are left to manage the ups and downs as best they can. Pedestrians have access to one of the bridges, but otherwise, they are also left to manage the slopes as best they can.

The bridge with pedestrian access was constructed in the era of cages (see post). I am noticing a theme of completely enclosed pedestrian walkways found in association with major transit lines (ex. Beechview’s bridge, Graham Street Bridge, and the former pedestrian bridges over the East Liberty busway) while partially enclosed cages are found in association with roads and rivers (ex. Highland Park Bridge and the pedestrian bridge over Bigelow Blvd).

New Bethlehem Memorial Bridge

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The New Bethlehem, PA, Memorial Bridge holds a special place in my heart. After going through the woods for hours on the way to grandmother’s house, New Bethlehem was a landmark that we were getting close. A few more wooded hills and a few more river crossings and we’d be there.

I wonder if in addition to the answer to “are we there yet?” changing from “no” to “almost,” I also enjoyed the intimacy of New Bethlehem after hours on the impersonal and distant freeway. In the previous five hours of diving, we crossed many bridges over many waterways including both the eastern and western branches of the Susquehanna River. But what little I remember of the bridges on Rt 80, they are distant from the water and between the speed and concrete barriers, there is not much to see. At New Bethlehem, the water is right there, almost within reach. Plus there’s a mini waterfall to enjoy.

In my new habit of taking “Sunday drives” (though usually on Saturday), I recently wended my way through the hills to drive across this bridge again for the first time since I was 12 (and first time across as the driver). Of course, I stopped the car to be able to get out and walk across. There is a nice riverfront park on the eastern side, which is either “new” or just not as noticeable when driving.

Kittanning Citizens Bridge

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Kittanning is a small town of just under 4,000 residents on the Allegheny River northeast of Pittsburgh. The name is from a Native American village destroyed in 1756 and is thought to mean “the place at the Great River.” It has a single bridge, the Kittanning Citizens Bridge, which was built in 1932 and renovated in 2010. According to historicbridges.org, “In a rare gesture of good faith to taxpayers and preservationists, PennDOT has made the logical decision to rehabilitate this bridge rather than demolish and replace it.” So while this bridge was an unplanned stop on my weekend wanderings and in my blog schedule, it fits nicely with the current theme of demolish & replace or renovate.

The northeastern shore (the Kittanning side) has a nice waterfront park with a boat launch, amphitheater, upper and lower walking paths, fishing and seating areas, and seasonal public restrooms. The southeastern shore (the West Kittanning side) has some houses set back across a road looking out toward the river.

London Bridge (and others) are Falling Down

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As if there weren’t already enough crises, London’s bridges were “falling down” in 2020. Three were closed for vital repairs. Hammersmith Bridge remains suspended in limbo while the other two, London Bridge and Vauxhall Bridge, reopened after months of work. Yet, none are totally in the clear. London Bridge’s reopening included significant daytime traffic restrictions. Traffic restrictions may be implemented for Vauxhall Bridge, if money cannot be found for more repairs. Financial straits threaten Hammersmith Bridge as well. It was first closed to vehicular traffic in April 2019 and closed to all traffic, pedestrian and bicycles over and boat traffic under, in August 2020 due to widened cracks feared to portend imminent collapse. The estimate to repair this bridge is £140 million and nearly seven years of work.

London Bridge is falling down,

Falling down, falling down,

London Bridge is falling down,

My fair Lady.

In my experiences walking bridges, it seems common to wait until a bridge is almost falling down to invest in it. It appears politically unappealing to direct funds to maintaining bridges, so we live in a world with a dire refrain of our collapsing infrastructure.

Build it up with bricks and mortar,

Bricks and mortar, bricks and mortar,

Build it up with bricks and mortar,

My fair Lady.

Bricks and mortar will not stay,

Will not stay, will not stay,

Bricks and mortar will not stay,

My fair Lady.

In Pittsburgh, bridges are often left to run the course of their lives without regular maintenance, then are replaced with a new bridge. The resulting demolition ceremonies and ribbon cuttings  make splashy political news stories. The river bridges are an exception. Probably because of their character and contribution to the city’s photogenetic downtown, they are occasionally partially or completely closed for maintenance.

Build it up with iron and steel,

Iron and steel, iron and steel,

Build it up with iron and steel,

My fair Lady.

Iron and steel will bend and bow,

Bend and bow, bend and bow,

Iron and steel will bend and bow,

My fair Lady.

London’s river bridges have more history and, sometimes, more character than Pittsburgh’s bridges. Hammersmith Bridge is one of the city’s unique and historical bridges. The steep price tag to repair this bridge, perhaps the result of mounting deferred maintenance, begs the question of at what point in the decades of non-investment is the threshold crossed beyond which repair is no longer an option.

Build it up with silver and gold,

Silver and gold, silver and gold,

Build it up with silver and gold,

My fair Lady.

Silver and gold will be stolen away,

Stolen away, stolen away,

Silver and gold will be stolen away,

My fair Lady.

The decades of neglect in Pittsburgh and London overlooks bridges’ frequent role as practical infrastructure built to assist in crossing an obstacle. Even temporary closings can cause extreme headaches and delays to those who rely on the bridge. Hammersmith Bridge was left to deteriorate so long, it had to be closed before a plan was in place. As funds and a repair approach are sought, the residents and businesses of Hammersmith continue to be seriously inconvenienced by not being able to cross the river close to home.

Note: Lyrics to “London Bridge is Falling Down” were taken from https://allnurseryrhymes.com/london-bridge-is-falling-down/.