I have dealt with the question of what is a bridge multiple times in the last decade. Buffalo adds to this philosophical conversation by combining the questions “what is a bridge?” and “what is the purpose of a bridge?” I’ve previous walked through what is the difference between a bridge and a ramp (Pittsburgh Edition I and Edition II), this time the nuance is “what is the difference between a bridge and an overpass?”
In Buffalo, the structure that carries Route 5 over what used to be largely industrial areas with some residential parts reads to me like an overpass. But sitting down to think it through, I realized that I may have to call it a bridge as well. It has all the structural components that are found in bridges: roadbed, spans, support. Yet, its purpose does not feel like a bridge.
While in Pittsburgh bridges divide the residents of the city, more typically bridges are about making connections. We use the term “bridge” metaphorically for building a connection. I see physical bridges as a structure that connects two (or more) points.
But Route 5 is not about connection, it is all about passing over. So can I call it a bridge?
I think an engineer would say yes. Since I started this philosophical debate of what is a bridge, the Fern Hollow Bridge in Pittsburgh collapsed, which led me to discover the Federal Highway Administration’s bridge database. It took a minute to figure out which dot on their map referred to Route 5’s structure, but I’m pretty sure it’s the one that is 1.38 miles long with 112 spans. The FHA, therefore, considers it a bridge.
From a structural viewpoint then, an overpass is a bridge; but from a philosophical one, an overpass may not be a bridge unless it is also a path of connection.
Three years ago, Pittsburgh’s Fern Hollow Bridge collapsed on a cold and icy morning. Since then, I have periodically checked in on the status of the new bridge, the fallout from the collapse including the Mayor’s new Commission on Infrastructure Asset Reporting and Investment, and the condition of other bridges, particularly those closed for safety reasons since the Fern Hollow Bridge collapsed.
At my last check-in one year ago, the National Transportation Safety Board’s investigation was still on-going with the latest update on their website a year old. The investigation wrapped up shortly after and the NTSB’s final report was issued in March 2024 (WTAE, March 22, 2024). Unsurprisingly, the report found that the City’s failure to act on the maintenance and repair recommendations from years of inspections led to the structural failure of the bridge. Specifically:
On Friday, January 28, 2022, about 6:37 a.m. eastern standard time, the Fern Hollow Bridge, which carried Forbes Avenue over the north side of Frick Park in Pittsburgh, Allegheny County, Pennsylvania, experienced a structural failure. As a result, the 447-foot-long bridge fell about 100 feet into the park below. The collapse began when the transverse tie plate on the southwest bridge leg failed due to extensive corrosion and section loss. The corrosion and section loss resulted from clogged drains that caused water to run down bridge legs and accumulate along with debris at the bottom of the legs, which prevented the development of a protective rust layer or patina. Although repeated maintenance and repair recommendations were documented in many inspection reports, the City of Pittsburgh failed to act on them, leading to the deterioration of the fracture-critical transverse tie plate and the structural failure of the bridge.
Immediately after the Fern Hollow Bridge collapsed, the City created a Commission on Infrastructure Asset Reporting and Investment. However, it took Mayor Gainey about 18 months to nominate any commissioners and another 5 months for the commission to have its first meeting on December 5, 2023. Despite finally existing, it still hasn’t been added yet to the city’s website listing all Boards and Commissions. It does have an official city website though. The first report from the Commission to City Council was issued on June 5, 2024. In the cover letter, the Commissioners acknowledge that they are charged with reporting to council at least twice a year.
The Charles Anderson Bridge was immediately closed to vehicular traffic on February 1, 2023. On November 4, 2024, the bridge was closed to bicycle and pedestrian traffic as construction was finally underway for rehabilitation of the bridge (the process started in 2019). The Panther Hollow Overpass is also being improved while the traffic is detoured. (Pittsburgh Engage project page)
Pittsburgh’s Swindell Bridge, which closed initially from July to September 2022 due to falling debris. The expectation was that repairs that summer would enable the bridge to fully reopen to traffic. Instead the latest repairs seem to have uncovered more issues. The bridge will eventually undergo a full rehabilitation, which will require another closure during construction. However, that will not be for some time as the bridge is still in the preliminary design phase. (Pittsburgh Engage page)
The “complete overhaul” of the South Negley Avenue Bridge announced in 2022 (CBS, February 25, 2022). The city still does not have a project page for this bridge, though both sidewalks have been closed for safety (Mayor’s Press Release, June 6, 2024; Mayor’s Press Release, June 17, 2024). The obvious deterioration on this bridge and lack of movement on repairs leaves the way open for speculation on whether we will have another bridge disaster in our city sooner rather than later.
Rehabilitation on the Swinburne Bridge remains on pause until after the Charles Anderson Bridge is reopened as the Swinburne Bridge is part of the detour route. (Pittsburgh Engage page)
Preliminary engineering remains ongoing for the rehabilitation of the 28th Street Bridge. (Pittsburgh Engage page)
Preliminary engineering has started for the California Avenue Bridge rehabilitation. (Pittsburgh Engage page)
While the number of “Engage pages” about Pittsburgh bridges has grown in the last year (full list below the map), it still does not align with all the bridges closed fully or partially. In addition to the bridges mentioned above, the most recent addition to the list of bridges with issues, but no Engage page is the Panther Hollow Bridge that closed to vehicles October 2024 due to the results of its most recent inspection (see 2024 Bridge Disasters Actual and Pending for more).
In national bridge news, Congress fully funded the reconstruction of the collapsed Francis Scott Key Bridge before the end of December (Governor Moore’s statement, December 21, 2024), contrary to my prediction on Funding Bridges (December 15, 2024).
Photos: Other Bridges
Historic Pittsburgh Bridge Disasters
According to Bob Regan’s 2006 book “The Bridges of Pittsburgh,” Pittsburgh is no stranger to bridge disasters:
1845 – The original Smithfield Street Bridge burned down
1851 – The 16th Street Bridge burned down
1865 – Two spans of the 16th Street Bridge was washed away in a flood
late 1880s – The 6th Street/St. Clair Street Bridge burned down
1903 – The Wabash Bridge collapsed during construction
1918 – The 16th Street Bridge burned down (again)
1921 – The 30th Street Bridge burned down
1927 – The Mount Washington Roadway Bridge collapsed during construction
Map of bridges discussed in the Bridge Collapse series:
One of my readers alerted me to last night’s collapse of the Francis Scott Key Bridge in Baltimore. While I’ve never walked that bridge, since the collapse of Pittsburgh’s Fern Hollow Bridge, which I have walked, the scope of my blog has expanded to highlight the fragile nature of the infrastructure we rely on daily in the United States (and across the pond). According to the reports coming in and the video of the accident, a loaded cargo liner crashed into a pier of the Francis Scott Key Bridge causing the structure to collapse. The Baltimore Sun (March 26, 2024) and Washington Post (March 26, 2024) articles are my primary sources for learning of the accident.
Unlike Pittsburgh’s disaster which was due to a deteriorated portion of the bridge finally giving way after years of deferred maintenance, no blame has yet been placed on any structural unsoundness of the Francis Scott Key Bridge.
The ship that ran into it is another story. Apparently, it recently was flagged as having questionable issues in its navigation system. The current understanding is that the ship lost power and control of steering, issued a mayday alert, and crashed into the bridge pier. In the early analysis of what happened, there are questions as to why various things were not handled differently to have prevented the collision. For example:
Why were there not more structures in the water to deflect any ships away from the bridge pier?
Why didn’t the tugboats continue with the ship until it cleared not just the harbor, but the bridge as well?
Why wasn’t the bridge built with redundancies so that even if one of the piers were knocked out, the bridge could still stand?
Much like deferred maintenance (of bridges and ships), I suspect that money is at the root of the reason why not for items one and three above. It may also be a factor in why the tugboats don’t travel farther down the river with the ships.
The City of Baltimore and State of Maryland have declared a state of emergency. Pledges are being made to rebuild the bridge quickly, including President Biden promising the money to rebuild. It may be interesting to compare the rebuilding of the Francis Scott Key Bridge against Pittsburgh’s Fern Hollow Bridge. While of significantly different scales, both bridges are considered major transportation arteries that the local region cannot afford to be without any longer than absolutely necessary. Will the Francis Scott Key Bridge rebuild include similar time saving measures of purely utilitarian design and of concurrent design/build phases?
Thirteen months ago, Pittsburgh’s Fern Hollow Bridge reconstruction was declared finished eleven months after the previous bridge had collapsed. I scoffed at this announcement at the time as the side walk wasn’t yet open and the new bridge was closed again for a month during the summer to “complete all remaining bridge work.” (Mayor’s Press Release, June 8, 2023). However, David McCullough in The Great Bridge points out that there is never a clear completion date for a new bridge. He notes that when the Brooklyn Bridge was “finished:”
There was no one moment, no particular day, when he [Washington Roebling] could have said as much, nor would there be. Bridges did not end that way. There was always something more to finish up, some last detail to attend to. The final touches at Cincinnati, for example, had dragged on for nearly six months after the opening ceremonies and it looked as though the same might happen here. (505)
David McCullough, “The Great Bridge”
The Fern Hollow Bridge, therefore, was simply following the pattern established by other greater bridges. The bridge itself now seems to be fully complete and operational: all the multi-modal options to cross are open, the trail underneath is also open, and people crossing over or passing under can experience the public art installations. However, while the physical infrastructure has been repaired, the human physical and emotional fallout from the collapse continues.
Some of the people injured in the collapse are working with attorneys to seek transparency and a way to move forward following their experience. This fall, a judge ordered the release of documents relating to the bridge and its collapse (TribLive, November 16, 2023; TribLive, November 28, 2023; WPXI, November 28, 2023; WTAE, November 28, 2023; CBS News, November 29, 2023). In December, PennDOT released hundreds of pages of documents related to the collapse (CBS News, December 23, 2023).
News
Below are the news updates on the Fern Hollow Bridge and other bridge maintenance and replacement efforts in Pittsburgh and Allegheny County.
A year and a half after the City created a Commission on Infrastructure Asset Reporting and Investment, Mayor Gainey finally submitted nominations for the board seats to City Council (WESA, July 18, 2023). Council approved 12 commissioners on July 25, 2023, one commissioner on September 19, 2023, and one commissioner on December 18, 2023. The commission had its first meeting on December 5, 2023, (City of Pittsburgh Tweet, November 28, 2023; WPXI, December 5, 2023) but it hasn’t been added yet to the city’s website listing all Boards and Commissions. Presumably it will be added soon so that the agenda and minutes of the commission will be publicly available the same as all other city commissions. There have been no press leases regarding the long-overdue formation of this commission. I’ve only found the commissioners names by searching the City’s Legislative Center for “Appointment-Requiring Vote.” The approved commissioners are:
Lisa Frank
Zachary Workman
Tyler Watts
Tom Melisko
Patrick Cornell
Greg Bernarding
Eric Setzler
Doris Carson Williams
Darrin Kelley
Councilwoman Erika Strassburger
Chief Darryl Jones
Andy Waple
Samuel Miclot
Michele Miller Beener
The final designs for the rehabilitation of the Charles Anderson Bridge and the Panther Hollow Overpass are nearing completion and bids are expected to be released this month. (Pittsburgh Engage project page)
Pittsburgh’s Swindell Bridge, which closed initially from July to September 2022 due to falling debris, continues to have problems and the city is providing little to no information at this time. The expectation was that repairs over the summer would enable the bridge to fully reopen to traffic. Instead the latest repairs seem to have uncovered more issues. There is no evidence of a plan yet for addressing the situation. (TribLive, July 7, 2023; WPXI, August 7, 2023; Pittsburgh Engage page)
The “complete overhaul” of the South Negley Avenue Bridge announced in 2022 (CBS, February 25, 2022) has not been mentioned since and there is no project page for it to indicate that plans are in the works for it. The obvious deterioration on this bridge and lack of movement on repairs leaves the way open for speculation on whether we will have another bridge disaster in our city sooner rather than later.
Construction began on the 30th Street Bridge rehabilitation in April 2023 and finished in August. (WPXI, August 21, 2023; Pittsburgh Engage page)
Rehabilitation on the Swinburne Bridge remains on pause until after the Charles Anderson Bridge is reopened as the Swinburne Bridge is part of the detour route. (Pittsburgh Engage page)
Preliminary engineering is ongoing for the rehabilitation of the 28th Street Bridge. (Pittsburgh Engage page)
Temporary repairs, including protection from falling debris, were done on the California Avenue Bridge. Preliminary engineering is scheduled to start this year. Residents remain concerned about the falling debris and the condition of the bridge. This bridge is another possible candidate for the next bridge disaster in the city. (CBS, January 2, 2023; WPXI, June 29, 2023; WPXI, December 5, 2023; TribLive, September 8, 2023; Pittsburgh Engage page)
Photos: Other Bridges
Historic Pittsburgh Bridge Disasters
According to Bob Regan’s 2006 book “The Bridges of Pittsburgh,” Pittsburgh is no stranger to bridge disasters:
1845 – The original Smithfield Street Bridge burned down
1851 – The 16th Street Bridge burned down
1865 – Two spans of the 16th Street Bridge was washed away in a flood
late 1880s – The 6th Street/St. Clair Street Bridge burned down
1903 – The Wabash Bridge collapsed during construction
1918 – The 16th Street Bridge burned down (again)
1921 – The 30th Street Bridge burned down
1927 – The Mount Washington Roadway Bridge collapsed during construction
Map of bridges discussed in the Bridge Collapse series:
As the first bridge collapse in nearly 100 years within the city limits of Pittsburgh, this remains a top story on urbantraipsing. In the six months since our last look at the bridge, there have been four important updates:
The preliminary findings of the National Transportation Safety Board’s investigation into the collapse have been released
The bridge is now fully open to vehicular, bicycle, and pedestrian traffic
The two art installations have been installed
My feet are back to being fully functional
Update 1: Unsurprisingly, the NTSB’s investigation found that a decade of ignoring the calls for maintenance in the annual bridge inspection resulted in the deterioration of the steel structure of the bridge. The findings reference the inspections of bridges of similar construction in Pennsylvania following the collapse of the Fern Hollow Bridge. It noted that while those bridges have also experienced deferred maintenance, none of them are exhibiting deterioration as bad as Fern Hollow’s. The report did express concern that the status of similar bridges outside of Pennsylvania is unknown.
Update 2: While all lanes, the sidewalk, and multi-modal path are now open, there is evidence of some more work to be done. A little beyond the western end of the bridge, there are the preliminary markings for a crosswalk. Also, a “stop here on red” sign was installed, though it currently faces the park, not the traffic. Both of these suggest that a new traffic light will be installed to create a safe pedestrian crossing.
Update 3: John Peña’s A History of Fern Hollow Creek was installed on the bridge and Carin Mincemoyer’s Trail Meander was installed under the bridge. Mincemoyer’s alternative concept of a rain arch that paid homage to the arch of the former bridge did not move forward as it was found to not be feasible within the time and budget constraints of the project. I enjoyed the historical timeline of the bodies of water on this site illustrated in Peña’s installation – it provides and opportunity to stop and think about the different bodies of water that have shaped the landscape of Pittsburgh over millennia. I haven’t yet cracked the pattern of the order in which they are displayed, if there is one.
Update 4: As I do not currently have any mobility limitations, I was able to take many more pictures from different angles.
Photos: Fern Hollow
Below are the news updates on the Fern Hollow Bridge and other bridge maintenance and replacement efforts in Pittsburgh and Allegheny County.
The artwork on the bridge was approved by the Public Art + Civic Design Commission in October 26, 2022 (Agenda, Application, Minutes). The artwork for the trail experience under the bridge was approved by the Public Art + Civic Design Commission in March 22, 2023 (Agenda, Application, Minutes).
PennDOT’s project page regarding the reconstruction of the bridge has not been updated since March 2022, except to add a sentence at the beginning to say that the bridge is now complete and operational prior to my last update in January, despite the fact that the bridge was fully closed again for a month in June 2023 to “complete all remaining bridge work.” (Mayor’s Press Release, June 8, 2023; WESA, June 8, 2023; Pittsburgh Magazine, June 9, 2023; Roads & Bridges, June 9, 2023; WPXI, June 11, 2023; WTAE, June 12, 2023)
Preliminary findings have been released in the National Transportation Safety Board’s ongoing investigation. Corrosion and deterioration of Fern Hollow Bridge’s uncoated weathering steel components is the key finding along. In addition, while the annual inspection of the bridge had identified maintenance activities that would have addressed these issues for over a decade, the maintenance was not completed.
The City created a Commission on Infrastructure Asset Reporting and Investment in March 2022, but no one has been appointed to the commission and it hasn’t been added yet to the city’s website listing all Boards and Commissions. Earlier this year, Mayor Gainey (WESA, June 26, 2023) and Councilwoman Strassburger (Pittsburgh Union Progress, April 3, 2023) both discussed the value of the commission – when it is operational. Neither discussed why the Mayor hasn’t appointed anyone to the board yet (Post-Gazette, June 8, 2023).
The temporary closure of the Charles Anderson Bridge turned into a long-term closure as expedited funding was negotiated to move the full rehabilitation forward sooner. The project may take until 2025 or 2027 and will include a new 2-way bike lane. The Panther Hollow Overpass will also be repaired while the Charles Anderson Bridge is closed because the overpass “is approaching the end of its functional life” and the road is already closed. (Mayor’s Press Release, March 16, 2023; KDKA, March 17, 2023; KDKA, March 23, 2023; WTAE, April 18, 2023; Patch, April 18, 2023; Post-Gazette, April 18, 2023; WPXI, April 19, 2023; WESA, June 1, 2023; Pittsburgh Engage project page)
Pittsburgh’s Swindell Bridge, which closed from July to September 2022 due to falling debris, closed for about a week in April to set-up platforms for future construction and then closed again in July to install new beams. One of the articles says that this will finish the work on the Swindell Bridge, while another says that a full rehabilitation project is yet to come. Pittsburgh’s Engage site only shows the public meeting from April. (Triblive, April 22, 2023; Mayor’s Press Release, April 21, 2023; WTAE, April 27, 2023; Mayor’s Press Release, April 27, 2023; KDKA, July 9, 2023; Pittsburgh Engage page; Mayor’s Press Release, July 7, 2023; Post-Gazette, July 10, 2023)
In searching for new news on the South Negley Avenue Bridge, I didn’t find anything new, but I found an article from 2015 that said the renovation of the bridge was scheduled to start 2 years from then – that has come and gone with no new start date in sight. In addition to not finding anything new about what is happening to this poor condition bridge, it’s not clear if the closure of the west sidewalk of the South Negley Avenue Bridge from 2022 officially ended or if pedestrians took matters into their own hands and moved the barriers aside themselves. (The Philadelphia Tribune, February 2, 2015)
Maintenance work on Swinburne Bridge was scheduled for May 2023. Full rehabilitation will happen later, after the Charles Anderson Bridge is reopened as the Swinburne Bridge is part of the detour route. (Mayor’s Press Release, May 19, 2023)
The Lincoln Avenue and Fremont Street bridges were closed indefinitely for repair January 2023 by PennDOT to the surprise of Millvale, PA – a small town across the 40th Street Bridge from Pittsburgh – the borough is seeking funding for the repairs (Borough’s Announcement, January 23, 2023)
Photos: Other Bridges
Historic Pittsburgh Bridge Disasters
According to Bob Regan’s 2006 book “The Bridges of Pittsburgh,” Pittsburgh is no stranger to bridge disasters:
1845 – The original Smithfield Street Bridge burned down
1851 – The 16th Street Bridge burned down
1865 – Two spans of the 16th Street Bridge was washed away in a flood
late 1880s – The 6th Street/St. Clair Street Bridge burned down
1903 – The Wabash Bridge collapsed during construction
1918 – The 16th Street Bridge burned down (again)
1921 – The 30th Street Bridge burned down
1927 – The Mount Washington Roadway Bridge collapsed during construction
Map of bridges discussed in the Bridge Collapse series:
From time to time, someone will ask me which Pittsburgh bridge is my favorite. I typically answer the Smithfield Street Bridge. The shape and color of its trusses are unique in a city of golden bridges. The lights gently rising and falling along the curves the the trusses create a soft reflection on the river. Walking over it placed the stress of work on the other side of the river. Walking over it, it’s best not to look down at the holes rusted through the sidewalk that reveal the rushing water underneath.
This question came up again when my family was visiting for the holidays. I had postponed my first walk across the new Fern Hollow Bridge about a week to share the experience with them. While we were walking across it, I was asked what bridge(s) I liked in Pittsburgh. While I answered that the Smithfield Bridge is probably my favorite, we had experienced that one multiple times in the past, so I started to think about what are the other bridges I find interesting that are less visible than the Smithfield Bridge. This spurred an impromptu driving tour of bridges in Pittsburgh.
We went from the Fern Hollow Bridge to the Greenfield Bridge, as the last time we were all in Pittsburgh together we watched the cloud of dust from the implosion of the former bridge through the trees of Schenley Park. We passed the Hot Metal Bridge, Birmingham Bridge, and South 10th Street Bridge before passing through the Armstrong Tunnel for the fun of it. That positioned us to encounter the CAP – which is one of those bridges that doesn’t look like a bridge – on our way toward the Allegheny River. I added an extra turn so that we could pass over the 28th Street Bridge – the only through truss bridge over the busway – before crossing the 31st Street Bridge (my other favorite bridge to walk, except for the fact that it is out of the way). We got out of the car at this point to walk the pedestrian/bike trail bridge to Herr’s Island. While that was the end of this unofficial tour, we did pass by the 40th Street Bridge and cross the R.D. Fleming or 62nd Street Bridge to complete our loop.
Your Choice
In March, you will have the chance to vote for your favorite Pittsburgh River Bridges in the 2023 Bridge Madness Tournament. Details will be announced on March 7.
Bridge Photos
Fern Hollow BridgeGreenfield BridgeHot Metal BridgeBirmingham BridgeSouth 10th Street BridgeCAP / Frankie Pace Park28th Street Bridge31st Street BridgePed/Bike Bridge40th Street BridgeR.D. Fleming / 62nd Street Bridge
Irony? Serendipity? A sign I’ve walked too many bridges? It’s been one year since Pittsburgh’s Fern Hollow Bridge collapsed into Frick Park and another important arterial bridge is now closed and I am once again unable to fully explore due to another foot injury.
Shortly after the Fern Hollow Bridge collapsed, photos of temporary wires holding up the Charles Anderson Bridge supplementing the original metal structure that had rusted all the way through in places peppered social media and made the news with the question of would this be the next bridge to collapse? On February 1, 2023, the Charles Anderson Bridge was “immediately closed” to vehicular traffic (press release). Those with fully functioning limbs are still able to walk or bike across or under the bridge – it passes over another one of Pittsburgh’s major parks (Schenley Park).
The bridge was closed to facilitate interim repairs that may take four months. The bridge has been slated for a full rehabilitation for several years (see the City’s project page for more). The original projection was that this project would be funded this year, but according to a press release from the Mayor’s office on February 2, the expected funds have been delayed until 2027 and the City is looking for ways to expedite the funding.
Also, along the lines of serendipity, I happened to be browsing my copy of Bob Regan’s “The Bridges of Pittsburgh” (2006) this week for unrelated reasons and came across the section “Bridge Disasters.” The section opens with the statement: “Although Pittsburgh area bridges are quite safe and there has been an absence of bridge problems in modern times, this was not always the case.” (page 50) After identifying several of the bridge disasters from pre-modern times (summarized below), he ends this section with “Since that time [1927] there has not been a bridge collapse in the Commonwealth of Pennsylvania and there has never been a collapse of an operating bridge. However, this record was somewhat blemished in late 2005 with the collapse of a portion (one side girder) of a bridge over I-70 near Washington, PA.” (page 51) Of course, any updated version of the book will now have to strike this claim due to the 2022 collapse of the operating Fern Hollow Bridge.
Driving over the new Fern Hollow Bridge this week, it looked in pretty much the same condition as in December with one lane of traffic in each direction and one shared path open. There were several bikers and pedestrians using it while we crossed during the latter part of rush hour.
Bridge disasters highlighted in “The Bridges of Pittsburgh:”
1845 – The original Smithfield Street Bridge burned down
1851 – The 16th Street Bridge burned down
1865 – Two spans of the 16th Street Bridge was washed away in a flood
late 1880s – The 6th Street/St. Clair Street Bridge burned down
1903 – The Wabash Bridge collapsed during construction
1918 – The 16th Street Bridge burned down (again)
1921 – The 30th Street Bridge burned down
1927 – The Mount Washington Roadway Bridge collapsed during construction
Charles Anderson Bridge, February 10, 2023
Below are the news updates on the Fern Hollow Bridge and other bridge maintenance and replacement efforts in Pittsburgh and Allegheny County.
The proposed artwork for the new bridge is among the elements not yet completed. I didn’t find any new information on this since the NextPittsburgh article of September 26, 2022, that I cited in the December update.
PennDOT’s project page regarding the reconstruction of the bridge has not been updated since March 2022, except to add a sentence at the beginning to say that the bridge is now complete and operational, despite the fact that it is not fully open yet due to ongoing work/finishing touches.
The National Transportation Safety Board’s ongoing investigation into the Fern Hollow Bridge collapse was updated on January 26, 2023, with details of what has been investigated to date including photos of some of the parts of the collapsed bridge. It also now contains a link to a preliminary docket of materials that have been gathered in the investigation. They are still working out the cause of the collapse and recommendations to prevent such incidents in future.
The City created a Commission on Infrastructure Asset Reporting and Investment in March 2022, but this commission has not been added yet to the city’s website listing all Boards and Commissions and I have not seen any announcements of any appointments to the new Commission.
Pittsburgh’s Swindell Bridge, which closed from July to September 2022 due to falling debris, is currently under lane restrictions and is expected to close for a month later this year for additional repairs. (Pittsburgh Union Progress, February 12, 2023)
The closure of the west sidewalk of the South Negley Avenue Bridge doesn’t phase some people as they by-pass the barriers and continue on their way, in fact one of the barriers had been completely moved aside the last time I drove across the bridge, presumably by someone who found it in their way.
The Lincoln Avenue and Fremont Street bridges were closed for repair January 2023 by PennDOT in Millvale, PA – a small town across the 40th Street Bridge from Pittsburgh (WPXI, January 27, 2023)
Map of bridges discussed in the Bridge Collapse series:
Six months after Pittsburgh’s Fern Hollow Bridge collapse, PennDOT and the Mayor’s office announced that the new bridge would probably open before the end of the year. The ribbon cutting for the new bridge was held on December 21 (Governor Tom Wolf News, WPXI, Pittsburgh Business Times) and the bridge opened to partial traffic the following day. There is one lane of traffic open in each direction and one “shared path” open on the south side of the bridge. Work on the bridge will continue through the spring.
The initial designs showed a bridge designed for highway vehicle traffic with pedestrian and bicycle access tacked on in a thoughtless way. Despite public outcry and professional push-back, the initial designs went primarily unchanged. As the bridge is not fully open, there is a chance that in execution it won’t be as bad as the initial design suggested, but it’s not off to a promising start.
The shared path on the south side – the one that’s now open – connects to sidewalk on the east side of the bridge and to the trails in Frick Park on the west side. There is no existing sidewalk to continue walking along Forbes Avenue to Squirrel Hill. While this path is unusually wide for a bridge, it appeared to be just a sidewalk when I visited it this week. I adopted the term “shared path” based on the videos of the ribbon cutting, which claimed that’s what it is. Perhaps there will be signage added eventually that bikes are also permitted, but I didn’t notice a way for bikes to get up onto this path from the road. While I’m clearly judging this bridge already and finding it wanting, I will continue to monitor its progress and will be open to finding it better than I do now once all the amenities are open and I’m no longer confronted with pedestrian dead end signs.
Below is a slideshow of photos from this month’s traipsing of the bridge followed by the news updates on the Fern Hollow Bridge and other bridge maintenance and replacement efforts in Pittsburgh and Allegheny County.
The City announced traffic pattern changes now that the bridge is reopening, breaking up one of the smooth travel paths for vehicles trying to cross the eastern neighborhoods on a north-south axis. (City Press Release, December 22, 2022)
The proposed artwork for the new bridge is among the elements not yet completed. (NextPittsburgh, September 26, 2022)
For whatever reason, PennDOT’s project page regarding the reconstruction of the bridge has not been updated since March 2022, making it a completely useless resource.
The City created a Commission on Infrastructure Asset Reporting and Investment in March 2022, but this commission has not been added yet to the city’s website listing all Boards and Commissions and I have not seen any announcements of any appointments to the new Commission.
The City of Pittsburgh’s 2023 Capital Budget includes limited funding for bridge repair and maintenance. (Public Source, December 5 & 22, 2022)
The bridge Port Authority closed to repair shortly after the Fern Hollow Bridge collapse, and then had to re-repair in July, seems to be okay now.
On July 1, Pittsburgh’s Swindell Bridge was closed due to falling debris. It reopened on September 1. (City Press Release, September 1, 2022; CBS, September 1, 2022; WPXI, September 1, 2022)
The Finland Street Pedestrian Bridge underwent an emergency demolition on October after being struck by a crane attempted to pass underneath. (City Press Release, October 7, 2022; City Press Release, October 8, 2022)
The City of Pittsburgh announced in November that it was going to close the east sidewalk on the South Negley Avenue Bridge (one of the bridges that the public is concerned about its highly deteriorate appearance) out of an “abundance of caution” to accommodate repairs, however, it was the west sidewalk that ended up closing. (City Press Release, November 23, 2022)
A public hearing was held on the Davis Avenue Bridge Reconstruction project in September. (City Press Release, September 28, 2022)
Additional Resources:
Both PennDOT and the Federal Highway Administration have interactive maps of bridges for the state and country respective, and their inspection statuses.
There was a lot of news about the bridge this month. PennDOT and the Mayor’s office held a press conference on Monday to announce that the bridge may be completed before the end of the year. This unusually fast pace is because construction is underway while the design is still being worked out. Inspired by the event, I went to Frick Park after work and explored the view of the bridge from the northern approach along the Tranquil Trail.
While the news is good for the Fern Hollow Bridge reconstruction, there were hiccups this month on the Swindell and Port Authority bridges.
Below is a slideshow of photos from my hike this month followed by the news updates on the Fern Hollow Bridge and other bridge maintenance and replacement efforts in Pittsburgh and Allegheny County.
Two artists were selected to provide artwork for the new Fern Hollow Bridge (City Press Release, July 25, 2022)
Despite the press conference, artist announcement, and beam delivery schedule, there are no new updates on PennDOT’s project page regarding the reconstruction of the bridge.
The City created a Commission on Infrastructure Asset Reporting and Investment in March 2022, but this commission has not been added yet to the city’s website listing all Boards and Commissions and I have not seen any announcements of any appointments to the new Commission. However, there was a press release this month asking for applicants interested in serving in any of the city’s boards and commissions.
WSP USA was selected to manage the City’s new Bridge Asset Management Program. (Tribune Review, July 19, 2022)
On Tuesday, Port Authority found a crack in one of the rails on the bridge that was just repaired. The inbound T service was discontinued for two days to enable the replacement of this portion of track.
On July 1, Pittsburgh’s Swindell Bridge was closed due to falling debris. The falling debris was noticed during the first phase of repairs, which was repaving the road. (City Press Release, July 1, 2022) The subsequent inspection found that the debris came from the repairs – material accumulated in one of the drainage troughs, putting unusual pressure on the trough and causing it to “tear open and spill” the debris onto route 279 – hours after I had driven under it. (City Press Release, July 5, 2022)
Additional Resources:
Both PennDOT and the Federal Highway Administration have interactive maps of bridges for the state and country respective, and their inspection statuses.
My foot is finally healed enough for me to begin to explore the site of the bridge collapse over Fern Hollow in Frick Park. I started at the Frick Environmental Center and explored the western slope into the hollow looking for gaps in the trees to see the progress on the bridge construction. The Clayton, Biddle, Bradema, and Tranquil trails all provided glimpses of the bridge site. According to the Hiking Project’s website, the elevation change between the highest and lowest points I encountered was 250′ and the steepest grades were between 13 and 16%.
It was pleasant hiking through the leafy forest, but the foliage hid most of the bridge site. From what I could see through the gaps in the leaves, construction seems well on its way with the four primary support columns erected. In future updates (barring further injury), I will explore the views from the park along the eastern slope and the northern trails.
Below is a slideshow of photos from this exploration followed by the news updates on the Fern Hollow Bridge and other bridge maintenance and replacement efforts in Pittsburgh and Allegheny County.
There are no new updates on PennDOT’s project page regarding the reconstruction of the bridge since my post last month.
The City created a Commission on Infrastructure Asset Reporting and Investment in March 2022, but this commission has not been added yet to the city’s website listing all Boards and Commissions and I have not seen any announcements of any appointments to the new Commission.
The RFP is now closed for the Bridge Asset Management Program that Mayor Gainey announced in early May. (Bidnet.com)
Port Authority’s bridge has been repaired and is back in service. The stop upgrades to the stations in Beechview and Dormont have reached a point where they have reopened to use, though repairs (including morning jackhammering) continue.
Earlier this month, Public Source published an article revisiting the first four months after the bridge collapse. From this article, I learned that the City has launched a separate investigation into the collapse, that the overworked and understaffed Department of Mobility and Infrastructure will need more staff and resources to implement better bridge management in the city, and that a table of the status of Allegheny County’s poor condition bridges was released in February shortly after the Fern Hollow Bridge collapse.
The Campbell’s Run Road bridge replacements identified in the County’s list of poor condition bridges are indeed happening this year. I have gotten caught up in traffic congestion caused by the detour for the work several times. (WTAE, February 3, 2022)
Pittsburgh’s Swindell Bridge is one that has been on the radar since the collapse of the Fern Hollow Bridge. The City announced this week that a first phase of repairs will be conducted over the next couple weeks. This initial phase consists of repaving the road surface. (City Press Release, June 24, 2022)
Additional Resources:
Both PennDOT and the Federal Highway Administration have interactive maps of bridges for the state and country respective, and their inspection statuses.
urbantraipsing 