Category Archives: Bridges

Funding Bridges

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Bridges are a vital connectors that enable us to move around as we live our lives. Frequently, we don’t even realize there’s a bridge there…at least not until there’s a bridge disaster. Over the last few years, there have been several bridge disasters, some due to accidents, like the collapse of Baltimore’s Francis Scott Key Bridge in March 2024 after being struck by a malfunctioning container ship, and some due to deferred maintenance, like the collapse of Pittsburgh’s Fern Hollow Bridge on an icy, cold morning in January 2022.

We have seen recently that when there is motivation, the missing links caused by bridge disasters can be repaired in record time. Pittsburgh’s Fern Hollow Bridge was completely rebuilt and opened to traffic 11 months after collapsing, instead of the usual multi-year process to design and build a new bridge. In Philadelphia, when an elevated section of I-95 collapsed after an accident in 2023, the repaired section reopened to traffic 12 days later, compared to 26 days for a similar situation in Oakland, CA. (PBS News, June 23, 2023)

Despite President Biden’s repeated request to Congress to expedite funds to replace Baltimore’s Francis Scott Key Bridge, Republicans in Congress are possibly motivated to delay so that President-elect Trump will get the credit for rebuilding this crucial transportation link. (Fox News Baltimore, November 8, 2024; WCBM, November 8, 2024) Unfortunately, Trump does not have a good track record for funding bridges.

It can be easy to overlook during the buzz of election season that there is often a delay between when a law is signed or a policy adopted and when the effects of that law or policy are felt. Bridges encapsulate that well. The memorable moments are when a bridge closes or collapses (typically viewed negatively) and when a bridge reopens (typically viewed positively). The moment when funds are allocated, the moment enabling a bridge to reopen at a later date, is not often remembered.

For example, it was front page news when the new Greenfield Bridge reopened in 2017, when Trump was President, but the funding that constructed the bridge was allocated when Obama was President. Similarly, the Charles Anderson Bridge has been closed to traffic for most of President Biden’s term in office, to the annoyance of many, but that is also when the funds were found to rehabilitate the bridge expanding the life of this historic bridge by decades. However, the reopening is projected to be in 2026, in the middle of Trump’s second term as President.

Assuming two years as the average time from funding to reopening on bridge reconstruction and rehabilitation projects, I pulled the Federal Highway Administration’s numbers for bridge construction and rehabilitation in Pittsburgh that would have been funded under the leadership of Presidents George W. Bush, Barack Obama, and Donald Trump. (FHWA InfoBridge) Given the delay between funding and completion, it is too early to measure the impact of funding under President Joseph Biden’s leadership.

Bush: 36 bridges total = 4.5 bridges per year

Obama: 76 bridges total = 9.5 bridges per year

Trump: 9 bridges total = 2.25 bridges per year

Bridge maintenance and repair rarely happens without support from federal funding. When the bipartisan infrastructure bill passed under President Biden’s leadership runs out of funds, or those funds get diverted to Project 2025, I am skeptical that new funding for bridges will be found under the leadership of President-elect Trump. Therefore, I expect more bridge disasters or, at the very least, more indefinite bridge closures in the coming years.

Mid-Hudson Bridge – Bridge Music

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The Mid-Hudson Bridge has a unique additional feature. In 2009, Joseph Bertolozzi used the bridge as the sole instrument in his sound-art installation Bridge Music (see Bertolozzi’s official website for more information). There are two listening stations on the bridge, one at each pier, and those driving across the bridge can also access the music on their car radio. The full Bridge Music is available on CD and Bertolozzi has several YouTube videos of the music. Below is a sample of the music I captured in a video with views of the Hudson River and the two bridges (the Walkway Over the Hudson is the second bridge).

Mid-Hudson Bridge

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Half a mile downriver from the Walkway Over the Hudson (slightly closer as the crow flies) is the Mid-Hudson Bridge, so named for being halfway between New York and Albany. After being completely exposed to the noonday July sun on the Walkway Over the Hudson, I learned the relief of shade that can be had on a bridge, particularly when it incorporates some truss-like structure like the Mid-Hudson Bridge. I remember being completely in the shade while walking the Manhattan Bridge, but as that was in late December it had a completely different effect.

Taking in the Mid-Hudson Bridge added significantly to the length of my walk, but was worth it for the shade and the ability to add another bridge to my ever-growing list of walked bridges. I also encountered signs for “Bridge Music” on my way to this bridge which intrigued me and which I’ll explain further later.

Once again, additional fencing is provided on the portion of the bridge that crosses over the railroad tracks. Other than that pinch point and one or two other pinch points, my photographs suggest to me that this was a very pleasant bridge to walk. And overall, I think it was, but I was quite spooked by the number of signs warning pedestrians not to aggravate the nesting peregrine falcons on the piers. It wasn’t clear from these signs what behaviors would be sufficient to aggravate these predators, but I took the signs to mean that these birds were more sensitive than the ones found on tall buildings in Pittsburgh and curtailed my observations of and from the bridge accordingly.

I also tested out taking video of a portion of the walk of the bridge. This is something I have been considering as another way to share the experience of bridge walking with my readers. The video is below the sample of photographs. As I am holding my phone in my hand to take the video, there is a little bounce from my gait and some other slight stability issues.

Walkway Over the Hudson

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I don’t remember how I first heard about the Walkway Over the Hudson, but it was several years before I developed the habit of walking bridges. Even at that time it sounded like a cool place to check out. Once I became a bridge-walker, it became a must-experience site. Over a decade later, I finally walked the Walkway Over the Hudson.

The Walkway Over the Hudson crosses the Hudson River at Poughkeepsie, NY. It opened in 1889 as a railroad bridge. It closed in 1974 after being damaged by fire and reopened as a renovated pedestrian bridge in 2009. It is both a National Historic Civil Engineering Landmark and on the National Register of Historic Places. At 1.28 miles it claims to be the longest pedestrian bridge in the world.

It is also 212 feet above ground or river level. In discussing my experience of climbing to the top of St. Paul’s Cathedral in London, I glossed over the fact that I almost didn’t reach the top due to my discomfort with heights and instead focused on the fact that claustrophobia almost prevented me from coming back down. Proportions and railing heights have a significant impact on whether I can manage heights. The Whispering Walk inside the base of the dome in St. Paul’s was too narrow and enclosed for me to handle the height above the floor (98 feet). The Walkway Over the Hudson, on the other hand, was quite wide having once carried two railroad tracks side-by-side. And so despite being more than twice as high up as the Whispering Walk, I did not experience much trouble with the height. I was more concerned about the possibility of the wind tearing my phone/camera out of my hand and over the edge.

Despite the potential damage that objects falling off the side of the bridge could cause, extra high barriers to prevent that are only located over the railroad tracks. As I’ve discussed in previous posts, some bridges have extra fencing only along portions of their walkways, typically over railroads and sometimes over automobile roads. The extra fencing on the Walkway Over the Hudson is from a time after it was common to curve the top, creating a cage-like feel, but before the need for extra height was incorporated into the design of the bridge itself.

There is no shade on a deck-truss bridge 212 feet off the ground. On a hot, July day, you feel the full force of the sun when taking such an exposed 1.28 mile walk starting at 11:30. If I hadn’t discovered that there was another bridge that I could walk across, I probably would have opted to take the shuttle back.

Francis Scott Key Bridge Collapse

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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?

Washington Crossing Bridge

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Last week, I unexpectedly found myself driving across the Washington Crossing Bridge. Once I got over the initial shock of finding myself driving on such a small bridge, I was struck by the parallels with other bridges I’ve encountered.

There was an immediate sense of deja vu having stumbled upon and walked across a similarly old and narrow bridge in 2017. The Market Street Bridge, Steubenville, bridges the Ohio River to connect Ohio and Pennsylvania; while the Washington Crossing Bridge bridges the Delaware River to connect New Jersey and Pennsylvania. Relying solely on my memory, I thought these two bridges were of the same design. However, looking back at my pictures, Market Street Bridge appears to be a hybrid suspension-truss bridge with the trusses painted yellow. The Washington Crossing Bridge is solely a truss bridge, with blue trusses. This leaves me with an unresolved sense of deja vu of having encountered a blue truss bridge of similar design somewhere once before.

The second parallel appeared when I stopped on the Pennsylvania side to figure out where I was and take more pictures of the bridge. A historic park made it easy to learn that this bridge and its surroundings were known as Washington Crossing. While I have a vague recollection of the story of Washington crossing the Delaware under the noses of the British Army, living in Pittsburgh, that crossing is eclipsed by his earlier crossing of the Allegheny River, when he fell in and had to spend the night on an island in the river before continuing on his mission on behalf of the British. The Allegheny River crossing is memorialized by the 40th Street Bridge‘s alternative name, Washington Crossing’s Bridge.

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.

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.

What is a Bridge? Bethlehem Edition II

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Looking back at the original intent of the Hill-to-Hill Bridge and comparing it to its use today, I find myself asking a new question: what is the purpose of a bridge? The word bridge is often used metaphorically to describe something that brings two things together. At the same time, there is a running joke in Pittsburgh (the City of Bridges) that if it involves crossing a bridge, people would rather stay home. This conflict of ideas between a bridge as a connector and a bridge as a divider is illustrated by the Hill-to-Hill Bridge.

The Hill-to-Hill Bridge started out as a connector. A Y at the north end linked West Bethlehem and Bethlehem to the main span which connected to South Bethlehem. The ramps in-between connected the neighborhoods to the businesses on the flats by the water.* Over time, the priority on connection disappeared as the bridge was modified. Of the seven original approaches, three were demolished, one was permanently closed to through traffic, and one was changed to one-way traffic.

The explanations I came across for alterations to the bridge seem reasonable, but they do not tell the whole story.

  • Reason #1: Industry changed and shut down in Bethlehem as with other Rust Belt cities. Some of the business destinations connected to the bridge were among those that closed, removing the need for the connection.
  • Reason #2: Cars became bigger, faster, and more numerous, making it harder to navigate the tight turns on some of the approaches.

The story that is overlooked by these explanations is that in the 1960s a new highway was built from the north directly tying into the bridge. The introduction of high-speed traffic to the bridge, or to any roadway, certainly makes it less safe for local traffic.

As a result of the addition of the highway, instead of connecting the neighborhoods of West Bethlehem, Bethlehem, and South Bethlehem, the bridge funnels traffic directly toward the former steel mill, Lehigh University, and other points south. In fact, the residents of West Bethlehem are practically excluded from using the bridge to get anywhere, as the western ramp is closed to through traffic (though open to parking). To use the Hill-to-Hill Bridge to reach South Bethlehem, a resident of West Bethlehem would have to drive north several blocks to get on the highway going south. Alternately, a resident could go south by taking Spring Street, a road parallel to the western and eastern wings of the bridge, (by)passing under the main span, then skirting around the hill of historic downtown, and taking the Fahy Bridge instead.

People living and working in the historic downtown area (the Bethlehem neighborhood) are also now limited in their use of the bridge. If coming across the bridge from the south, they can take the eastern viaduct to enter the historic downtown, but to leave the area by way of the Hill-to-Hill Bridge, they would have to drive north to the same highway access point as the residents of West Bethlehem. They could alternately take the Fahy Bridge for a more direct route south.

Use of the bridge is a little easier as a pedestrian, though it is still the most challenging for residents of West Bethlehem. For pedestrians to access the bridge from the west, they would have to use the sidewalks on Spring Street, walk under the main span, and climb a towering staircase up to the sidewalks on the bridge. If they are not able to use the stairs, they could keep going on Spring Street up the hill to the eastern end of the viaduct. Once on the bridge, both the historic downtown and south side are accessible. Given the history of the bridge, I imagine that there once was a time when there were crosswalks at the intersection of the main span and the east and west spurs so that pedestrians had full use of the structure just as drivers would have had.

The shift in the bridge’s focus from local to regional traffic seems like a classic case of the Urban Renewal efforts of the 1950s and 1960s. The discussion among planners and officials in recent years is how do they undo or erase the mistakes of Urban Renewal. Pittsburgh is trying to reconnect the local by returning some one-way roads to two-way traffic and by building a cap over the highway that divided downtown and the Hill District. As I watch these developments in Pittsburgh, I wonder if there are ways to return the Hill-to-Hill Bridge to a focus on the local.

For example: The highway has to end at some point, which is currently at the southern end of the bridge. What if it were moved to the north end of the bridge? If a traffic light were introduced there, the western branch could be reopened to through traffic and the eastern branch could be restored to two-way traffic. Pedestrians would also be able to then use all the remaining approaches. Thus, West Bethlehem, Bethlehem, and South Bethlehem would be reconnected for the enjoyment of pedestrians and drivers.

This suggestion is based upon the assumption that the local community would want to be better connected by way of this bridge. Perhaps the question that should come before “what is the purpose of a bridge?” is “who gets to decide the purpose of a bridge?”

*By prioritizing connections, Clarence W Hudson, the bridge’s designer, was forced to develop a one-of-a-kind truss design to accommodate the railroad tracks beneath the bridge and the connections coming into the bridge. There is no record of this truss design being used on any other bridge.

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