Riverside Bridge: No Trespassing or else! Ordinance passed

The Christian County Commissioners on Thursday passed an ordinance barring anyone from entering and crossing the bridge. Those caught crossing the bridge will be fined $500. According to the County Commissioner Lou Lapaglia, the ordinance was justified for two reasons, which were for fear of liability in case anyone is hurt on the bridge and fear of vandalism to the bridge. Until further notice, the bridge will remained fenced off on both ends to ensure that no one enters or cross the bridge.

The ordinance does produce some mixed reactions on the part of many people including the author of the Chronicles. On the one hand, since the organization wanting to save the bridge and its director, Kris Dyer want to renovate the bridge for pedestrian use, fencing off the bridge does make sense in a way that it would keep potential vandals off the bridge. In the past, bridges closed to vehicular traffic but left open for pedestrians have witnessed various sorts of vandalism, stemming from spray painting certain bridge parts and the flooring to setting fire to the bridge deck destroying sections of it to even taking sections of the bridge, like in the case of a through truss bridge, ornaments, plaques and railings. An example of such an act occurred in 1996, when a group of teenagers set a wooden trestle bridge outside of Chaska, Minnesota (near Minneapolis) on fire, even though the structure was destined to become a pedestrian trail after the railroad company that owned it, Chicago and Northwestern (now part of Union Pacific) had abandoned it. The fire severely damaged 70% of the entire structure, including the trestles supporting the deck. It was unknown whether or not the arsonists were ever found, but the bridge was fenced off afterwards and is now facing being washed away by the upcoming floods destined to hit the Twin Cities in April. This incident was a fine example of how barricading a bridge is justified to avoid incidents like this and the liability that goes along with crossing the bridge.

Link to the bridge: http://pegnsean.net/~johnm/Chaska%20Trestle.html

Yet on the other hand, erecting an 8-foot fence at both ends of the bridge to keep people off the bridge and enforcing an ordinance is overexaggerating; especially in the eyes of those who wanted to keep the bridge open; even one suggested posting a sign saying ENTER AT YOUR OWN RISK, which was rejected for liability reasons by the county commission. Many bridges, like the Riverside Crossing were restricted to pedestrian traffic for many months or even years without any reports of litigation because of injury on the structure. Many people in Ozark use this bridge on a regular basis to walk or bike across the river. Unfortunately, this option can no longer be used and alternative crossings will have to be found and used until the bridge reopens again.

Such cases are no stranger, as a bridge in Jackson County, Minnesota for example suffered that particular fate, with the Petersburg Road crossing located in the southern end of its county seat, Jackson. Built in 1907 by Joliet Bridge and Iron Company, this single span Pratt through triss bridge was closed to traffic in 1985 due to structural deterioration, but a group managed to keep it open to pedestrians and bikers for another seven years until it was fenced off in November 1992. This served as an excellent shortcut for many living in the southern end of town; especially the children. But with the closing in 1992 and its removal just over two years later, people were forced to use the next crossing three miles upstream- by car only!

Petersburg Road Bridge in Jackson, MN (USA) Photo taken by the author in 1992

The future of the Riverside Bridge is now in the hands of the committee to save the bridge and its director, Kris Dyer. The organization needs enough money to make the necessary repairs and make it safe for use as a pedestrian bridge. While it is unclear how much this will all cost, estimates for making the repairs according to Matthews Engineering ranged from $130-180,ooo. The engineering consultant will present a full report on the bridge to determine the condition of the bridge and all eyes will be on not only the state of the structure, but also the estimates for fixing the bridge to reopen again and whether or not Missouri Department of Transportation will allow the bridge to be reopen period, as the agency, which is involved in the project, had recommened the bridge be closed to both vehiculars (which happened in September, 2010) and pedestrians (half a year later).  Also important is whether the county will help at all with the work- as it is $700,000 in debt according to Lapaglia- or will take advantage of cost-cutting measures and federal funding available by demolishing the bridge and replacing it with a current structure instead of looking for alternatives, like having a crossing on a different alignment. In either case, even if demolition is preferred, because the bridge is eligible for nomination on the National Register of Historic Places, it must go through the Section 106 process, which was introduced as part of the 1966 National Preservation Act and whose mission is to determine the environmental impact of altering or replacing the bridge as well as find alternatives to demolition. This process could take months to complete and perhaps by the time it is finished, there will be enough funds to rehabilitate and reopen the bridge.

More to come as the events unfold…..

If you are interested in donating to save the bridge, here are a couple links to help you. The second link is a facebook page which has some information on how to donate for the cause. Please preserve an important fabric of American history by making a donation. Every little bit does make a big difference.

Links:

1. https://ssl.4agoodcause.com/cfozarks/donation1.aspx?id=1

2. http://www.facebook.com/saveriversidebridge?sk=info

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Three Pennsylvania Bridges Coming Down


Venango Veterans Memorial Bridge- now gone

During the Historic Bridge Conference in Pittsburgh last year, I was reminded by a fellow pontist, Nathan Holth who runs the Historic Bridges.org website, of how important it is to photograph and document every bridge that is threatened with demolition to better imform the public of the importance of historic bridges in connection with US history and the history of industrialization, architecture, and other social aspects as a whole, when we discovered that an 1873 bowstring pony arch bridge in Ohio was removed before we could photograph it. Although angry with the fact that the bridge was gone, he and I were lucky to visit and photograph the other bridges in the vicinity, for three of them are coming down and one has been taken out already.  While the Venango Veterans Memorial Bridge in Crawford County was removed in November of last year with no plans of replacing it and its railroad overpass a mile up the road, three other bridges are facing the wrath of the digger and crane sometime this year or latest next, with others set to follow beginning in 2013, unless PennDOT streamlines these projects in order to begin the bridge replacement process earlier (more will come as the construction season starts in a couple months). Here are the bridges one must see before they’re gone forever:

Miller Station Bridge (Crawford County):

UPDATE: Should the bridge still be standing at the time of this article, it will not be for long. The 1887 Wrought Iron Bridge Company structure, consisting of a pin-connected Whipple through truss bridge with Town Lattice portal bracings and ornamental designs on the heel bracing and top chord is about to be replaced with three tunnel-like steel culverts, which will impede the flow of French Creek, a large stream resembling a river. The last update is that work on removing the road took place in the middle of February. If weather delays the demolition process, then it is not too late to get a pic. However, don’t count on it.

Miller Station Bridge- maybe gone already

Charleroi-Monessen Bridge (Washington County)

Spanning the Monongahela River southwest of Pittsburgh, bordering Washington and Westmoreland Counties, this three-span pin-connected Parker and Pennsylvania Petit through truss bridge built in 1905 by the Merchantile Bridge Company was suddenly closed in 2009 due to poor conditions on the bridge deck. Since that time, there was a lot of political wrangling due to the fact that the bridge was (and still is) listed on the National Register of Historic Places and therefore had to go through the mitigation process in order to find alternatives to replacing the bridge outright. This included Pennsylvania Senator’s Barry Stout’s comment of abolishing the National Preservation Act as it is time and cost consuming and impedes the progress of bridge replacement, which resulted in a clash between preservationists and the politicians. Although Stout is now retired, the end result of the Section 106 Mitigation Process was keeping the deck truss approaches, but dropping the three through truss spans into the Monongahela. This is the general plan for the contractor Joseph B. Fay Co. of Tarentum, while replacing them with a new span, which has not been revealed as of present, for a total of $26 million. The process will begin at the end of April of this year, making it a possibility for bridge enthusiasts to see the structure for one last time before it is dropped by implosion and cut up for scrap metal. Once this happens, questions will be raised on whether to keep the bridge listed on the National Register as this technically does not count as bridge rehabilitation as PennDOT sees it, but as an outright bridge replacement project according to preservationists. To the residents and business owners in Charleroi-Monessen areas, it does not matter as they will have their main structure back in service by 2012, eliminating the need to detour to the nearby bridges located over 30 miles (60 km) away in both directions and thus hurting business in the two communities, at the same time.

Charleroi-Monessen Bridge- still around until the end of April


Wightman Road Bridge (Crawford County)

Also known as Stopp Road Bridge, this single span pin-connected Pratt through truss bridge with Town lattice portal bracing and geometric shaped heal bracings represented a classic example of a bridge built by the King Bridge Company, which built the bridge in 1887. Unfortunately, as it can be seen with other structures, like the Mead Avenue Bridge in Meadville, the county commissioners made their point explicitly clear that despite the fact that the bridge is listed on the National Register of Historic Places and therefore has to go through the Section 106 mitigation process prior to replacement, that the bridge will be demolished and replaced no matter what alternatives to bridge replacement may be brought to the table. Should the stance remain, the county may risk losing federal funding for this project and the bridge will be taken off the National Regsiter list.  While the structure is located in some heavily forested areas, one could move the bridge over and convert it into a small park, like it is being done with the Quaker Bridge in neighboring Mercer County. However, the county has not thought that far yet and it is unknown whether they will think that far ahead. Good news is that the bridge is still standing and can be visited, but for how long?

Wightman Road Bridge- to disappear soon unless the county changes its mind

Potential Candidates:

At the present time, there are plenty of candidates out there that may be demolished as soon as possible. However for these bridges, the two variants working in their favor at the moment are: 1. No bridge replacement date has been set yet and 2. No decision on the bridge’s fate has been set yet. Who knows how long that might be the case, but as the lessons have been learned over and over again, one should visit the bridges before they’re gone as one will never have an opportunity to see what they look like. These candidiates include:

MEAD AVENUE BRIDGE IN MEADVILLE (CRAWFORD COUNTY)- While the community wants to see this unusual through truss bridge gone at the earliest possible convenience, there are still discussions as to what to do with the truss structure, let alone when the replacement will actually take place. More will come soon.

DONORA WEBSTER BRIDGE IN DONORA (WASHINGTON AND WESTMORELAND COUNTIES)- Spanning the Monongahela River, this six span through truss (5 Parker and 1 Pennsylvania Petit- center span and the longest in the state) has been closed since July 2009 and there are still discussions about the bridge’s fate still happening, even though most sceptics will claim that this bridge is doomed and it’s just a matter of time before it is removed.

CARLTON BRIDGE (MERCER COUNTY)- The future of this two-span Pratt through truss bridge over French Creek is in question as this Columbia Bridge Company structure is nearing its end of its useful life despite being rehabilitated in 1990. The question is should the truss bridge stay or should it go? Many claim that it should and will stay and some believe the structure can be rehabilitated again but for recreational and non-vehicular use. But the question is will it happen? We will see….

To summarize, that the bridges are disappearing fast does lead to two conclusions: 1. A person wanting to visit a certain historic bridge should do so before it is gone, as the replacement process can occur as quickly as possible and sometimes without notice and 2. If there is even the slightest hint of a historic bridge slated for replacement, one should take action as early as possible to ensure that it is preserved for future use, even if it means informing the media about it before the replacement plans are put on the table at a city council meeting. The Bridgehunter’s Chronicles will continue to present these bridges to the public (in addition to presenting the cities and regions that are rich in bridges and profiling historic bridges) to better inform the public on the importance of these bridges and their connection with history and culture, tourism and commerce, and preservation and reuse for purposes other than vehicular use so that people have a chance to either see them before they are gone, or take action and save them before they are gone.

Links:

http://www.observer-reporter.com/or/localnews/03-09-2011-Charleroi-Monessen-Bridge

http://www.historicbridges.org/bridges/browser/?bridgebrowser=pennsylvania/charleroi/

http://www.bridgehunter.com/pa/crawford/miller-station/

http://www.flickr.com/photos/69048450@N00/sets/72157625965379129/

http://www.bridgehunter.com/pa/crawford/wightman-road/

The Bridges of Magdeburg, Germany

Sternbruecke over the Elbe River Note: All photos in the article were taken in February 2011

Magdeburg! It’s fantastic! The Chronicles’ first European bridge profile takes us to the capital of Saxony-Anhalt, approximately 150 kilometers west of the German capital of Berlin, and with a population of approximately 340,000 inhabitants, Magdeburg is the third largest city along the Elbe River behind Dresden (517,300) and Hamburg (1.7 million). Founded by Charlemagne in 805, the city has many places of interest spanning over 1200 years that still exist today, including the Magdeburg Cathedral and as many as 17 klosters, many of which came from the age of the Holy Roman Empire, when Otto I ruled the empire (and is buried in the city at the Cathedral), as well as the Baroque Period. While most of Magdeburg was destroyed in World War II, the Soviets reconstructed the city using Stalinist style buildings which are still in use today and are in a way an attractive place to visit for tourist, especially those in the city center. While much of the city was in disarray during the Cold War, the revitalization efforts got started right after the Reunification of Germany in 1990. Modern day architecture, such as the Hundertwasser House built in 2005 is attracting tourists and architects alike.

However despite all the attractions that Magdeburg has to offer, the bridges serving this city are portrayed as a wild card as they vary in design and history and are becoming more integrated into Magdeburg’s city landscape than ever before. Of the 70+ bridges that serve Magdeburg in any shape or form, 19 bridges span the Elbe River and its tributaries, with the oldest dating as far back as 1846. 15 of them are located in the city center, right next to the river. Of these bridges, there are four steel through arch bridges, one suspension bridge, a vertical lift span, two truss bridges (one is a through truss), one cable-stayed suspension bridge, two steel beam bridges, three arch spans , and one cantilever beam span. All but a third of the number serve vehicular traffic. Three carry rail traffic and there are two serving pedestrians. Each of the bridges has a unique aesthetic design which impresses passersby when crossing them, regardless of when they were built but there is one major difference between them. All but four of them were either built brand new or were rebuilt for their predecessors were destroyed in the war. In either case, the only similarity among the number is their history which goes back at least 150 years for some of the spans. While it is impossible to profile all of the bridges, I decided to pick the top six bridges that are worth seeing, while nominating the honorable mentioned for another five bridges. All but three of the profiles are over the Elbe River. You can also find the bridges through another online source, whose link is at the end of this column.

JASON’S SIX BRIDGE PICS:

1. STERNBRUECKEN (The Bridges of Stars): This structure consists of two spans: a 69 meter steel through arch span crossing the parking lot and parts of the Klosterbergegarten on the west bank of the river and a 242 meter long combination of concrete arch and steel through arch over the Elbe River. Both were designed by Hermann Friedrich Proettel in 1914 and it took 8 years until the bridges were open in 1922. However, the Elbe River span was destroyed by the Nazis in 1945 as they blew up as many bridges as possible to slow the advancing Soviet troops marching in from the east. Ironically, the bridge was renamed in 1934 honoring the dictator Adolf Hitler. It was renamed the Sternbruecke after the war. However, from the time the bridge was destroyed until it was rebuilt 60 years later, all that remained of the bridge was the smaller steel arch span over the park and the concrete arch approaches. That changed in 2005 when the construction firm Meyer and Schubart from Wunstorf (near Hanover) in Lower Saxony constructed a beautiful blue through arch bridge over the Elbe River. With that plus the rehabilitation of the approach spans, the crossing is now open for pedestrians and taxis only. The smaller crossing still serves vehicular traffic, just like it did before.

Sternbruecke Elbe Crossing
Sternbruecke Park Span.

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2. MAGDEBURG LIFT BRIDGE

This bridge is one of two of its type that can be found in Magdeburg. The other span is located in the north harbor near the railroad bridge. The origin of the bridge goes as far back as 1846, when a seven span bridge was constructed over the west channel of the Elbe River. The purpose of this was to have a rail line go through the island located in the middle of the Elbe River enroute to Potsdam and neighboring Berlin both to the east. Therefore a 215 meter long span was erected. over the west channel. Three of these spans were replaced with a swing bridge span in 1890 and later the first vertical lift span in 1912. As part of the plan to deepen and widen the west channel for better navigation for ships, the 1912 span was replaced with a 90 foot long lift span, making it the longest span in Europe at that time. The bridge was one of four that survived the war unscathed but was made obsolete with the present railroad span located 4 kilometers north of the bridge. While the lift span, which also consists of a riveted Pennsylvania Petit through truss west approach span and four riveted Pratt pony trusses serving as the east approach spans, is now used for pedestrian traffic, it is currently being renovated as part of the revitalization project along the west bank of the Elbe to make it more attractive and safer. It is unknown how long this project will last, but at the time of visiting the bridge in February 2011, work was well underway. More information will come once the renovation project is completed.

Lift span
The east approach spans

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3. HERRENKRUG BRIDGE

Built in 1999 as part of the National Garden Show, this suspension bridge has a rather unique design that makes it attractive for anyone crossing the bridge. The approach spans on both sides of the Elbe River has a unique S-shaped approach with Y-shaped piers supporting the roadway. The towers are made of pylon and are leaning at an angle of about 70° towards the roadway. The cables supporting the roadway are draped over the leaning pylon towers. In the end one does not see a traditional suspension bridge like the Golden Gate Bridge but one that looks like it is leaning with the current of the Elbe River but in all reality, the suspension span is well supported by wider piers thus making it safe to cross. While this bridge is the northern most structure located within the city limits of Magdeburg, located even north of the railroad bridge, the span was needed to gain access to Herrenkrug and North Parks, located along the east bank of the Elbe River, plus all the bike paths that go along the river. The bridge is still a big attraction to the parks and the contractor to thank for making this happen is a company located in Dinslaken (near Hamburg) called Walter Hellmich Inc. However, the leaning pylon tower technique, albeit one of the first of its kind to be used for this bridge, can be found with a handful of other bridge spans, including one spanning a highway in Bayreuth in northern Bavaria, even though only one pylon tower is used to support the pedestrian route in this span.

Suspension span- 496.71 meters long.Â
West approach

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4. CRACAU BRIDGE

Designed by Juergen Langrock and constructed in 1997, the 232.5 meter long cable-stayed suspension bridge spans the east channel of the Elbe River connecting Magdeburg’s suburb of Cracau and Rotehorn City Park located on the island. Like its sister bridge the Herrenkrug, this bridge is unique as it too has an A-frame tower leaning at a 70° angle towards the river. However, the roadway and the tower are supported by stiffening cables which are accompanied with two approach spans, one on the east end and an C-shaped one on the east end. This bridge was built as part of the URBAN project initiative to improve access between Magdeburg’s city center, the park, and the suburbs on the east end of the Elbe River.

Cable-stayed span
A-frame tower and C-shaped park side appropach

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5. Toll House/ Anna Ebert Bridges

Anna Ebert Bridge: 

Location: East channel Elbe River

Span length: 191.1 meters

Type: Deck stone arch bridge

Toll House Bridge:

Location: Zoll-Elbe channel

Span length:  43.6 meters

Type: Deck stone arch bridge

Since 1882 these two bridges spanned the river and its tributary while connecting the island and the suburb Werder with Brueckfeld on the east end of the Elbe. A third arch bridge was constructed in 1936 to span the west channel connecting it to the city center. But the three arch bridges  survived only nine years as the west channel bridge was destroyed in World War II and the other two bridges were damaged in the bombing. Fortunately they were reconstructed to resemble their 1882 appearance. Unfortunately for the west channel span a cantilever deck span was built in its place. The Anna Ebert Bridge looks like a bridge that may have been built in the 1500s because of its appearance. However this is probably due to the fact that the bridge was built using sandstone only, plus it has seen its wear and tear  by traffic over the years. It seems unlikely that it was renovated recently unlike its sister bridge the Toll House Bridge. This bridge is perhaps the most ornamental of the bridges in Magdeburg as it features scupltures on each end of the bridge resembling the era of the Holy Roman Empire. In addition to that, six different coat of arms representing six cities can be found on the span: on the north side, Hamburg, Altona and Brandenburg; on the south side,  Dresden, Prague and Berlin. The use of brick and sandstone makes the structure a very appealing one to see. Both bridges are located next to the Toll House, which was built at the same time as the bridges and now serves as a museum and coffee house. All three bridges serve Berlin Chausee, a major artery connecting the city center with east end, where the university is located.

Anne Ebert Bridge
Toll House Bridge in Werder
Toll House in Werder

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6. MAGDEBURG RAILROAD BRIDGE (Abandoned)

Located right next to the Anna Ebert Bridge over the east channel of the Elbe River, this bridge is the oldest unaltered structure in Magdeburg. Built in 1846 by Hans Victor von Unruh, the bridge served the same rail line to Potsdam and Berlin as its western sister, the Magdeburg Lift Bridge. But unlike the Lift Bridge, this bridge has been abandoned since the new railroad bridge was built north of the city after the second World War and has been barricaded to keep people off. Unique about this bridge is the fact that the riveted connections on the 228 meter long, 9-span Pratt pony truss structure are one of the oldest of its kind ever built. Riveted connections were introduced at the turn of the century in the US and 20 years later in other parts of Europe, replacing the pin-connected truss spans which were too light to carry heavy traffic and too fragile because of wear and tear and weather extremities. One will find these types of bridges today on most rail lines as well as truss bridges built after 1900 and carrying either farm vehicles or if it is a primary highway, heavy traffic consisting of semi trucks and many cars. The future of this bridge is unknown as there are no talks about converting the structure into a bike path, like its western sister bridge. But should it be realized, the rail ties will have to be replaced with a concrete roadway as it is too dangerous to go across with 15-cm gaps between the tiles. More on the bridge’s future will come when the information is presented.

Oblique view of the bridge taken from the western bank of the east channel.Â
Inside the bridge- taken through the gaps from underneath the bridge as it was barricaded to keep pedestrians off the structure.Â
View from the Anna Ebert Bridge

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HONORABLY MENTIONED BRIDGES:

1. Magdeburg Railroad Bridge (new): This welded Warren through truss span was constructed after World War II to replace a bridge destroyed in the conflict. The tower and parts of the rail ties still remain. The bridge still serves long distance and regional train services to Berlin and points east.

2. Jerusalem Bridges: Spanning the western channel of the Elbe River, the steel through arches were built in 1952 (for eastbound traffic) and 1996 (for westbound traffic) respectively, replacing the multiple span arch bridge carrying the name Koenigsbruecke, which was destroyed in 1945. Today it carries Highway B1 out of Magdeburg heading east.

3. North Harbor Lift Bridge: Located along the Elbe River southwest of the new Magdeburg Railroad Bridge, this span consist of a riveted pony bowstring arch design as the main span as it was hoisted up to allow ships to enter and exit the shipping yard. Built in 1893, the bridge was decomissioned when the rail line was abandoned and converted to a pedestrian bridge shortly after that.

4. Ernst Reuter Allee Underpass: Located just north of the Central Railway Station (Magdeburger Hauptbahnhof), the underpass consist of 8 different bridges, one bridge per rail line and all but one consisting of a Pratt steel deck arch design. They were most likely built after World War II, with one of the spans replaced around 2000.

5. Magdeburg Water Bridge or Mittelland Canal Viaduct: This bridge, at 918 meters long is the longest bridge of its kind in Europe and located in the outskirts of the city, 4 kilometers north of the motorway A2. The welded Pratt deck truss span provides passage for ships travelling between the waterways in Berlin and the Rhein River region in North Rhine-Westphalia.

IN CLOSING: Magdeburg is transforming into a city where the past meets the future in the present time. The capital used to look like a poster boy with its Soviet style architecture during the Cold War, but at the expense of the ruins that existed after the city was bombed completely in World War II. The city is being revitalized so that it becomes more attractive for tourism and commerce in the years ahead. This also is the case with the city’s bridges as they are playing an increasing role in attracting more tourist and commerce in the region, regardless of type and history. While most of the bridges that had  existed prior to World War II cannot be replicated or repaired, the bridges that have filled the shoes of their predecessors have become an integral part of the city landscape, making them an interesting tourist attraction beside the Cathedral and the 17 klosters as well as the city center. And with revitalization still continuing along the Elbe River, the bridges of Magdeburg will become even more important to the city, whether they will be refurbished, like the Magdeburg Lift Bridge, or a new crossing is built to provide access to places in the east and south of the city. Should the latter be the case, one can be assured that the new structures will look as unique as the Herrenkrug and Cracau Bridges and bring a new face to a city which has had 1200 years of history that is worth looking at, when walking through the city and along the Elbe.

Bear Street Skyway in Magdeburg's City Center
The 1952 Jerusalem Bridge
North Harbor Vertical Lift Bridge along the Elbe River

Links:

http://en.structurae.de/geo/geoid/index.cfm?id=309

http://en.wikipedia.org/wiki/Magdeburg_Water_Bridge

http://de.wikipedia.org/wiki/Magdeburg