Tag Archives: pedestrians

What is a Bridge? Pittsburgh Edition II

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When I wrote the first “What is a Bridge?” post, I felt confident that Merriam-Webster’s definition of a bridge, “a structure carrying a pathway or roadway over a depression or obstacle,” was sufficiently explicit to exclude ramps.  However, while crossing the Penn Avenue Bridge in East Liberty I found a new structure to challenge the definition of a bridge.

The former bus ramp from the former Penn Avenue (Bus) Station to the (not former) East Liberty Busway Station meets the above definition of a bridge as it carries a roadway over the obstacle presented by the railroad bordering the busway.  On the other hand, it also meets the definition of a ramp, “a slope or inclined plane for joining two different levels,” as the busway is significantly lower than most of the surrounding area.  So, is it a bridge or a ramp?  It almost feels like asking is a tomato a fruit or vegetable? or perhaps even which came first, the chicken or the egg?  Are these equally impossible questions to answer or is it rather the case that there are exceptions to every rule?  There aren’t always easy or straight-forward answers.  I suppose in this case the structure is both a bridge and a ramp.

Perhaps a way to answer the question a little more specifically is to look at the way it is used.  In its previous use, the point of the structure was to get buses down onto or up out of the lower busway level.  While it was used in this fashion, I’d say it was more a ramp than a bridge.  There is a future plan for it to be turned into a pedestrian bridge to transport pedestrians safely across the railroad and busway to the busway station (see Busway Bridges: East Liberty).  At that point, in function the structure will be more of a bridge, though I suppose the ramp end will still function as a ramp to provide an accessible route to the station.  Whether it is a ramp or a bridge, I did not walk it yet as it is not currently designed for pedestrian access.  After its conversion is complete in the next couple years, I will come back to walk it.

Additional Posts in Series:

Taking the Long Way Round

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This week while I was walking some more bridges, I witnessed a fascinating phenomenon. I had an architectural design class a few years ago where we had an assignment to create a theoretical “intervention” for an assigned two block area of Pittsburgh (which coincidentally included a bridge).  Several of my classmates noticed in observing the area a significant number of j-walkers and so designed interventions that were pathways going over or under the road to stop pedestrians from crossing the road dangerously.  The reaction that I, the professors and other reviewers had to these projects was the theory and design is nice, but no one is going to go out of their way to climb up or down just to cross the road.  Similarly to this was a conversation some classmates of mine had about the paths pedestrians created across the school’s lawn.  These paths were formed because the pedestrians recognized that the shortest distance between two points is a straight line, yet every year for many years the school insisted on replanting the grass on these paths. If I remember correctly the school eventually gave up on this and instead of replanting the grass they paved the paths.

The phenomenon I witnessed this week was a pedestrian contradicting all the observations above.  I was walking several of the bridges over the busway in the East End neighborhoods.  As I walked to the Highland Ave Bridge, I was behind another pedestrian who looked like he might have been on his way to work.  He continued straight on the road while I climbed the steps pictured above to cross the bridge.  After I crossed the Highland Ave Bridge I crossed through the EastSide parking lot to cross the new pedestrian bridge.  As I approached this new bridge, I crossed paths with the man I had been walking behind.  He had crossed the pedestrian bridge and was now doubling back to get to his location.  The shortest route for him would have been to cross the Highland Ave Bridge; instead he made the choice to go out of his way and cross the new pedestrian bridge instead.  Apparently my architectural design classmates were not as far off as I thought–given an attractive enough alternative pedestrians will go out of their way.

The new pedestrian bridge is probably the newest bridge in Pittsburgh, being less than a year old.  I had been waiting for it for over two years before it finally opened.  Shortly after it opened I took the opportunity to walk across it for the first time and was very disappointed.  I thought it looked incredibly ridiculous and with the planters on either side I didn’t feel like I was on a bridge.  I think I had imagined it as something a little closer to a swinging bridge that this heavy and solid construction.  However, the incident this week with the pedestrian has caused me to reconsider this bridge.  Comparing this bridge to the Highland Ave Bridge, I have to admit it does have many good points.  Though I still think the pedestrian bridge leans to the ridiculous, it is much more pleasant looking that the Highland Ave Bridge.  While crossing the Highland Ave Bridge, I can’t help wondering if the wooden planks that make up the sidewalk are still strong enough.  What if the wood has become rotten or termites have eaten away its integrity?

Given the proximity of these two bridges (they are about a block apart) I don’t blame the man for walking a little bit out of his way to cross the pedestrian bridge instead of the Highland Ave one.  The one complaint I have left about the new pedestrian bridge is the enclosed, caged feeling it has.  While it certainly is the most dressed up caged bridge in the city, it is still a cage.

Washington’s Crossing Bridge

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I walked the 40th Street Bridge last fall after having taken a tour of the Maxo Vanka murals at the St. Nicholas Croatian Catholic Church (pictured above).  Two years after having come up with the idea of walking all the bridges in Pittsburgh, this one was the first that I documented (side note: the camera I had at that time produced pictures of significantly less quality than my current camera).  While the bridge itself was fine for walking across, the approach to it was quite intimidating, so much so that if there was a bus easily accessible and going in the direction I wanted, I would have chickened out and taken it instead.  Between the church and bridge I had to cross through an active road construction zone, cross more than one fast past road, and then walk up a small strip of a highway exit ramp covered in debris and just barely wide enough for passing the people coming the other direction.

The other end of the bridge connects to Lawrenceville and is much more pleasant as it immediately connects to a residential area and there is a little parklet that is designed to encourage pedestrians at one corner.  The large building in the middle of the frame above is Arsenal school, behind which is Arsenal Park.  Both sites were named after the Allegheny Arsenal located on this site during the Civil War, which played a significant role in the war and where there was a major explosion that killed many of the female workers.

On the bridge itself are seals.  I did not look closely at them as on this, my first official walk across a bridge, I was mostly concerned with the views from the bridge and not the bridge itself.  According to PGHbridges.com these seals are the seals of Allegheny County and the thirteen original colonies repeated up and down the bridge.

The downstream view above looks out over the forested northern end of Herr’s Island toward downtown.  As I mention in the Converted Railroad Bridge post, Herr’s Island has been renamed Washington’s Landing, in honor of George Washington’s crossing of the Allegheny River.  Apparently the official name of the 40th Street Bridge is Washington’s Crossing Bridge, which I was not aware of until looking it up online.  In the cases of the other bridges with double names such as each of the Three Sisters Bridges (see June 14, June 21, and June 22 posts) and the R.D. Fleming/62nd Street Bridge (see July 24 post) both names are used interchangeably, but I have only ever heard this bridge called the 40th Street Bridge.  As the person who commented on the Converted Railroad Bridge pointed out, the island renamed Washington’s Landing wasn’t actually where Washington landed.  PGHbridges.com has a somewhat detailed account of what might have happened when Washington crossed the Allegheny according to which the island he and Christopher Gist landed on after Washington fell into the river was actually on the southern side of the river (Herr’s Island/Washington’s Landing is on the northern side).

Up until this point on the Allegheny River, both sides of the river are part of the City of Pittsburgh.  Now the right-hand side of the river in the upstream view above is Pittsburgh while the left-hand side belongs to other municipalities.

Pittsburgh Steps

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According to an article in today’s Post-Gazette, not only does Pittsburgh have more bridges than any other city, but it also has more steps (at least compared to US cities).  Pittsburgh has 712 flights of steps, while San Francisco only has 168.  After I walk all 446 of Pittsburgh’s bridges (at least all of them that are pedestrian accessible), perhaps my next goal should be to walk all of the steps.  I have considered doing this in the past, but have hesitated because of the condition of some of the steps.  The one pictured above is in good condition, but more often than not the steps are over grown, cracked, perhaps missing a step or two, and the railings are rusted and look like they’ll crumble to the touch.  The steps were frequently used in the past by mill workers who lived up or over the hill from the mill, but since cars became more common and the mills closed, they mostly sit vacant.  As there isn’t much demand for them, it is understandable that the city doesn’t spend the few dollars it has on their maintenance.  All the same it is a shame to see them deteriorate.

However, that may all be about to change!  Today’s article is about a group of young people who created an organization, Community Steps Cooperative to clean the steps and make them safe.  An eventual goal is to make them attractive destinations a side-effect of which may be that they rival San Francisco’s steps.  I am very excited to see a group take initiative on this and I hope to be able to participate in some of the volunteer events to help clean the steps!

Converted Railroad Bridge

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This is the bridge that I missed when identifying the river bridges to cross on GoogleEarth.  I missed it because it doesn’t cross the entire width of the Allegheny River.  About 2.5 miles upriver from Downtown Pittsburgh is Herr’s Island, also known as Washington’s Landing.  The name Washington’s Landing refers to the story that this was where George Washington spent the night after a crossing of the Allegheny River during which he fell into the river.  (The folk song “The Forks of the Ohio” describes the incident.)  Herr’s Island refers to one of the original landowners of the island, Benjamin Herr.

One of the names of this bridge is Herr’s Island Railroad Bridge.  While PGHbridges.com lists multiple names for the bridge, none of them refer to the new use of the bridge as a pedestrian bridge.  The bridge connects the northern shore of the Allegheny with Herr’s Island and I image was very well used while the island was covered with industry.  Now is it a very pleasant pedestrian bridge connecting the northern branch of the Three Rivers Heritage Trail with Herr’s Island, which now features a swanky residential area.

     

The view upstream shows the little stretch of the Allegheny that separates the northern shore from Herr’s Island, while the downstream view captures downtown.

At the Herr’s Island end of the bridge is a nice look-out space featuring this compass with the three rivers.  While this part is nice and seems to welcome the public, I always feel very awkward as I continue on the trail along Herr’s Island.  The way the island was developed, it feel like it’s a private, gated community and people like me who use the trail but don’t live there are interlopers and trespassers.

16th Street Bridge-Developments

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The southern end of the 16th Street Bridge soars over an area that is currently provoking controversy in the city.  It is a site where there are what feels like be miles of barren (although used) parking lots right up against the river on either side of the bridge.  It is a very un-pedestrian-friendly area and a very unattractive place.  Alongside these parking lots on one side of the bridge is the historically significant produce terminal building.  While a developer has put forward a plan to redevelop the area, connecting the existing Strip District to the Allegheny River and adding new mixed development in place of the parking lots, part of the plan requires a partial demolition of the produce terminal.  (A description of this intended development can be read in the article linked here.)

In the beginning of June, City Councilman Dowd began holding up funding for the project, saying he wanted more information about how the funding was to be used (see article).  Then about a week ago, two more councilmen voiced their wish for more information about the use of the funding as well as other aspects of the project such as how the community has been engaged (see article).  Another newspaper article from a few days ago, describes a lawsuit being filed about the property and the development.  This article explains, “The lawsuit alleges that the city is not following its own stormwater management program nor that of the federal Environmental Protection Agency in allowing the project.”

Based on what I’m learning in my internship this summer, this seems like the opposition against, or at least concerns, about the project are piling high enough to prevent the development from happening.  As I am not a fan of harsh, stark parking lots currently in place, it would be a shame for the project to fall through.  However, if the claims of the opposition are true, then it seems we need to find someone else to develop the site.  As awful as the parking lots are, their removal is not worth the price of poorly spent funds, no community engagement, and poor storm water management.  The last concern is the most significant given the fact that the city’s storm water management already causes problems.  (For more related to this issue seen my Heth’s Run Bridge post.)

One River Down!!

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This week I officially crossed all the pedestrian accessible bridges in Pittsburgh across the Allegheny River.  I still have a few more to post about, but I’m so excited about having reached this milestone, I had to share it with my readers.  I finished the legwork and now just need to complete the fingerwork to be geographically one-third of the way to reach my goal for the summer.

Of the 20 bridges I initially identified as pedestrian accessible over the three rivers in Pittsburgh (see May 30th post), 10 cross the Allegheny River.  It turns out one of these that I identified wasn’t actually pedestrian accessible, though I posted about it anyway (see June 24th post).  However, it turns out that I missed a bridge on the Allegheny when picking them out on the map.  So I still crossed 10 out of 20 bridges.

I have been using the term pedestrian accessible because not all of the bridges I crossed were necessarily pedestrian friendly.  From the Point downtown up to the 31st Street Bridge (see July 19 post) the bridges were mostly pedestrian friendly.  The 31st Street Bridge begins to get a little dubious.  Farther upriver, while the bridges remain accessible, they are not particularly pedestrian friendly.  See Highland Park Bridge, Washington’s Crossing Bridge and The Last Allegheny River Bridge posts.

16th Street Bridge

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Pittsburgh’s 16th Street Bridge was quite interesting.  I was surprised by how many people were crossing it.  As there is only one pedestrian in my picture above, there obviously weren’t crowds of people, but compared to the other bridges upriver that I’ve crossed there were a lot.  I thought this bridge was far enough out from downtown that the sidewalks wouldn’t be used much.  Also there didn’t seem to me to be much development on either side of the river that would promote walking across the river.  For all the bridges downriver from this point, one side is connected to downtown and the other is connected to a sports stadium and/or large office buildings.  While at the 16th Street Bridge there are some offices near the southern end and some apartments near the northern end, there didn’t seem to be enough for people to be using the bridge so much.  One explanation I came upon was that it was lunch time and both ends of the bridge connect or almost connect with the Three Rivers Heritage Trail.  It seemed like it would be a nice loop for downtown workers to walk the trail on one side of the river, cross the 16th Street Bridge, and return to work on the other side over lunch break.

      

The view on the left of downtown fascinated me.  It looks like there are two clumps of tall buildings (the yellow post doesn’t block any tall buildings).  However, the view on the right supports something I heard in one of my classes which I sort of scoffed at at the time.  I don’t remember exactly how it went, but it was something like the US Steel building (now labeled UPMC) was the center point of a triangle of downtown buildings and as such had to be the tallest.  I think part of the reason I had an issue with it was because the building is located in the middle of a side of the triangle and so the term “apex” or “center point” or whatever the teacher used didn’t fit my sense of geometry.  Actually, regardless of the term used, having the center of the base of a triangle as the focal point doesn’t match my sense of geometry.  However, in the view from the 16th Street Bridge, I can accept the US Steel building as the tallest and therefore a focal point because from this view, the buildings gradually increase in height until reaching it.

This graffiti symbol was painted on the sidewalk of the 16th Street Bridge.  I will not go into a discussion about it here, as I have come across it somewhere else that provokes a much more interesting conversation about it.  I was very surprised and intrigued to see it on this bridge as well, as I have only noticed it in one other place in the city, which isn’t exactly next door.  Although now that I’ve spotted it twice, I will be keeping my eyes open for it.

Westminster Bridge

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I mentioned in my post on Battersea Bridge that the traffic on the bridge was low, but that this was probably in part due to the fact that I crossed it on Sunday afternoon.  I was so excited about walking all the bridges in London that I walked half of them first thing that Sunday afternoon when I arrived.  The traffic condition on most of the bridges was similar to the Battersea Bridge–not much.  I did pass several other pedestrians as I walked along the Thames River Path to get between the bridges, but the volume of the pedestrian traffic changed significantly when I reached Westminster Bridge.  Crowds of people were crossing the Westminster Bridge, enough that an ice cream truck parked at one end to attract customers from the passersby.

      

Going back to the mysterious tower under construction next to the St Georges Wharf Apartments (see Lambeth Bridge post and Battersea Bridge post), my favorite view of these buildings was from the Westminster Bridge.  The way they appear in a cluster with other buildings along the river soothes my sense of harmony, as the tower doesn’t stick out so abruptly in this view.  This is one of my favorite things about walking bridges–seeing how the appearance of a particular location can change drastically when viewed from different locations.  The Thames River is particularly good for this as it twists and turns quite a bit as it passes through London.  This causes the incomplete tower to look like it is right next to the other tall building, when in reality they are separated by a fair distance and are on opposite sides of the river (again refer to the Lambeth Bridge post for a different view of these buildings).

Istanbul Bridges

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I decided it was time to add some variety to my bridges post.  Last year I spent two weeks in Istanbul.  While I was not as absorbed in my bridges quest at that time, I found that thinking about the bridges in Pittsburgh and London caused me to reflect on the bridges in Istanbul.  Considering how much water there is in Istanbul, there are very few bridges.  I can only recall seeing three: the Galata Bridge, Ataturk Bridge, and the Bosphorus Bridge.  (Apparently my memory is a little rusty as I just looked up a map of Istanbul which shows there were four bridges that I would have seen, this obviously reflects the fact that I was not in my bridges phase at that time.)  Of these four bridges, I only crossed the Galata Bridge, but I walked under the Bosphorus Bridge and took some pictures of it.

The Galata and Bosphorus bridges are very different in age and use.  There has been a Galata Bridge since the middle of the 19th century and a bridge over the Golden Horn (the body of water the Galata Bridge spans) since at least the 6th century.  The Galata Bridge has many uses.  There are wide sidewalks that accommodate pedestrians, three lanes in each direction for cars, and tracks down the middle of the bridge for the trams.  While I worked very hard not to get any of them in the picture above, the bridge is usually lined with fisherman and street vendors sell freshly caught and cooked fish.  Below the street deck are numerous restaurants.  One day, we had fish sandwiches for lunch at one of these, which were surprisingly good (I’m not much of a fish fan).  The line of one of the fisherman on the street deck above can be seen in my picture from the restaurant.  The Galata Bridge not only provides access between two points, but also provides people access to their livelihoods and to decent meals.  This shows that bridges do not have to be just about funneling traffic from one place to another; they can be a lively and interactive space in the city.

     

On the other hand, the Bosphorus Bridge, built in the 1970s as the first bridge to span the Bosphorus strait, is purely a funnel (as far as I observed).  It looks like it could be in New York or almost any other US city.  The purpose of the Bosphorus Bridge is like that of most of Pittsburgh’s river bridges–to provide vehicular access across a body of water.