Pop Quiz: How many bridges does Penig have?

penig bridges

A few days ago, I took advantage of nice weather here in Germany and embarked on a what I’ve touted as an Ironman bike tour through western Saxony. Starting at Hohenstein-Ernstthal, the tour lasted seven hours, going to Glauchau, then along the Mulde to Rochlitz, encountering steep hills with grades of up to 20% and heights of up to 400 meters. Then it was to Geithain before boarding the train for Glauchau before having biked the last seven kilometers to neighboring Meerane. All in all, 85 kilometers by bike and every bridge visited was worth every drop of sweat.

While I will mention more about the tour in a later article, I have a found a net of bridges worth posting. This is located in Penig, about 23 kilometers northeast of Glauchau along the Mulde. We have two major highways crossing over each other while crossing the Mulde, yet there are more crossings in this area than those two. Before giving the way the answer, here’s my guessing quiz question for you:

Look carefully in the picture. How many bridges at this site can you identify and can you find out how old they are? This includes the tunnel.

For the number, here are the options:

a. 2           b. 3            c. 4          d. 5           e. 6           f. 7

A map with the location of the bridges is enclosed here:

The answers will be provided when the article about bridge touring along rivers will be posted in a few weeks. This will include the tour of the Mulde plus a couple river examples. Stay tuned! 🙂

bhc logo newest1

Draschwitz Brücke

draschwitz1

Location: White Elster River in the village of Draschwitz, 7 kilometers north of Zeitz in the state of Saxony-Anhalt

Built: 1891-2; Damaged during World War II in 1945, Rebuilt in 1946, Restored in 1999/2000

Type: Parker Pony Truss with subdivisions

Length:  ca. 30 meters

Status: Open to traffic on a weight limit of 6 tons

During a recent bike tour along the White Elster from Gera to Leipzig (all 90 kilometers of it), I came across this unique structure. After passing through Zeitz and having revisited some of its historic bridges (see link), one would expect to see more of these historic bridges along the river, especially as Saxony-Anhalt has a wide selection of historic bridges worth visiting. One needs to see the towns of Halle (Saale), Magdeburg, Quedlinburg or even the bridges in the Saale-Unstrut River corridor in order to gather the impression that the bridges are being cared for by the state; this includes using funding provided by the European Union but also by the federal government to restore them to their original form while ensuring that cars and bikes can use the bridge.

draschwitz16

The Draschwitz Bridge is one of these structures that received this kind of care, as it was restored in 1999/2000, which included new wood decking plus paint on the superstructure, as well as work on the foundations. Given its location on a less used road that is occupied mainly by cyclists and locals driving their cars across, the restoration was worth it, as the bridge serves a local road and the White Elster bike trail, which connects Hof (Bavaria) and Halle (Saale), running parallel to the river until its confluence with the Saale River, between Halle and Leipzig.

draschwitz2

But what makes this bridge unique is its unusual truss design. The bridge was built using welded connections instead of pinned connections, as seen on truss bridges in general. Welded truss bridges, together with those with riveted connections were starting to come onto the scene at the time of its construction, as vehicular traffic- namely trains, but also later cars and trucks- had increased since the expansion of the railroad. This prompted the introduction of a network of roads connecting towns on the local level, but later expanded to cities on the regional and in the end national levels. While pinned-connected truss bridges were able to handle light traffic on local roads, as traffic increased and highway systems were introduced, they were replaced with truss bridges with riveted connections. Welded truss bridges were introduced in the 1890s to replace the pinned-connected bridges for despite its biggest asset of dismantling and reassembling the bridge at a different location, missing or broken bolts and cracked eye-bars made it difficult to impossible to relocate the bridge. With welded truss bridges, one has the advantage of relocating the bridge without having to take it apart. Plus with the beams fixed together and welded with bolts, there is more resistance to weight that is on the bridge. The Draschwitz Bridge has this on not only the trusses themselves, but also the outriggers that support the two center panels- an anomaly given the fact that truss bridges usually have outriggers on every vertical beam and panel, especially those in the US built after 1900.

draschwitz10

Another unusual feature is the upper chord itself. Normal truss bridges have upper chords that are of either squared shaped beams, V or X-laced or those whose shape resembles the letters I, L and C. They are supported by vertical and diagonal beams that are up to half its size and width. For this bridge, the upper chord and the vertical and diagonal beams are of nearly the same size. However, even more unique is the angled bracings that weave along the top chord, the points sticking outwards by up to 10 centimeters. While some truss bridges in the US and Germany built prior to 1885 may have had features like this bridge, the Draschwitz Bridge is the only known bridge to have an upper chord, decorated with such unusual bracing.

draschwitz8

Apart from the renovations, nothing has altered the bridge, even when villagers installed a plaque on the western wingwall, indicating the high water mark set by the flooding in 1954. Chances are, the White Elster may have been rechanneled after that, raising the bridge to prevent it from being swept down stream. Yet, a curved beam connecting that wingwall and the pier raised some eye brows as we don’t know what this serves, except to support the bridge in one way or another.

draschwitz12

The Draschwitz Bridge is really a gem in the field when it comes to finding historic bridges. The structure continues to serve local traffic and the Elster bike trail to this day. It’s one of the landmarks one should see when passing through Zeitz and the Elsterau, also the last one to see as one bikes north toward Leipzig, but one that the quiet village of Draschwitz should take pride in, one that Saxony-Anhalt has taken great care of, just like the state’s other historic bridges, and one that historians, pontists, engineers should study further to find out more on its history and structural features. It’s the one bridge that a person can spend lots of hours with the camera and a picnic blanket, sitting and indulging at its beauty, surrounded by a historic and natural landscape.

This slideshow requires JavaScript.

If you know more about this bridge, feel free to post your comment in the Chronicles’ facebook page or contact Jason Smith using the contact information in the About page.

bhc-logo-newest1

 

The Bridges Along the Baltic-North Sea Canal Part III: The Alt Eider Canal

This is a throwback article dating back to April 2011, when the author toured the bridges along the Grand Canal. Going in the opposite direction enroute to Kiel, this part focuses on the remnants of the Alt Eider Canal, which originally snaked its way across Schleswig-Holstein from Kiel to Tönning via Rendsburg and Friedrichstadt. While the western segment was converted into a river when the Baltic-North Sea Canal was built between 1890 and 1895, the eastern segment, running from Rendsburg to Kiel, was abandoned and as a consequence, many areas have become nothing more but ponds and small creeks with locks that no longer are in use. Using a map for this tour guide, here are some of the relicts worth visiting while on tour. 🙂

Lock at Rathmannsdorf minus the bridge removed. Photo taken in April 2011

After an hour of lunch, combined with a trek combing up along the west end of the Kieler Fjorde, passing the university and the state parliamentary building along the way, I ended up in the northernmost suburb of Holtenau, the starting point of the Grand Canal. Measuring about 95 km long and approximately 60 meters wide in many areas, it resembled the Panama Canal, which slices through the isthmus connecting North and South America. The only difference between the two is the landscape, which the Grand Canal goes through mostly flat land. Before the trip to Kiel to start on the journey, I bought a magazine bearing the name “Nord-Ostsee-Kanal” 2011 version from a book store in Flensburg and while staying at the hotel on the city’s east end of Mürwik, I learned about the canal’s history, let alone the origins, and decided to make a parallel bike tour  where I could find and photograph the bridges along both canals, although I would risk not getting from Kiel to Heide before sundown. While my prediction did come true, there was no regret doing what I did, for I would not have had the chance to share my experiences travelling along the Alte Eider and the Grand Canals at the same time.


The Alte Eider Canal had a width of about 30 meters and was 4 meters deep in many areas. While its starting point was in Kiel Holtenau, its path represented a long snake slithering quietly through the flat lands, as the canal made a lot of really sharp turns. Since many ships passing through the canal at the time of its completion had no engines (they would come in 1830s), most of them were pulled by horse and manpower to avoid any collisions with the banks. The canal swerved through many small present-day villages with many locks along the way. They include the villages of Knoop,  Pojensdorf, Rathmannsdorf and Schinkel northeast of the present-day canal and Kluvensiek, Bovenau, and Klein Königsförde located to the south and west of the Grand Canal close to Rendsburg.  And with each village, there were series of locks- more than that of the canal today in its entire length- many of whom are all but relicts today, where people can come and see what they looked like when the Alte Eider had its heyday.
Each canal lock consisted of a bridge, built using a bascule design which permitted traffic to horse and buggy and ships when necessary. There are many different types of bascule (or draw) bridges that were created and developed. The Scherzer rolling lift style was used on the Lindaunis Bridge over the Schlei. In Schleswig-Holstein, double leaf bascules were used most often to span narrow canals like the ones that existed along the Alte Eider. Originating from neighboring Holland (today known as The Netherlands), double leaf bascules consist of two half-bridge spans, each of them supported by cables or chains that are anchored by towers located on each end of the canal. For a textbook style, the cables or chains are connected to counterweight, located above each tower, which if lowered by manpower (or in today’s case machine), lifts the half-span to its vertical position to allow the ships to pass through. To lower the half-span, the weight is lifted up and back to its position above the tower, and the roadway is anchored down in a horizontal position, allowing horse and buggy to pass. An example of this bridge can be found in one of the pictures below.  These types are still being used today in Schleswig-Holstein for small crossings including those along the Eider River in the western part of the state. More on that in the second segment.   At least eight different locks had bridges of this type in service before the Alte Eider was made obsolete by the Grand Canal, one located in each village. This included the ones in Rendsburg, Kluvensiek and Klein Königsförde, which is profiled at the end of the column.

Example of the double leaf bascule bridge at Klein Königsförde Photo taken in April 2011

When the Grand Canal opened to traffic in 1895, the Alte Eider Canal lost its significance and was subsequentially put out of service. Much of the canal was filled up with silt, while other sections were dismantled and buried with dirt by farmers in an attempt to convert it into farmland. Some of the locks were dismantled with the bridges removed, while others were left as a landmark signaling the canal’s heyday.  One can see some of these landmarks today when trekking along the remains of the Alte Eider Canal. This includes a Toll house in Pojensdorf, which has since been converted to a museum dedicated to the history of this architectural landmark. There is a restaurant in Rathmannsdorf, located in front of the lock, which serves local delicacies. In Schinkel, a mansion-style hotel built in the early 1800s still exists today, despite being privately owned. Mills can be found in places like Kluvensiek and Bovenau. Parts of the Alte Eider were converted to harbor for yachts in Rendsburg. And one can find bridge relicts in Klein Königsförde and Kluvensiek, the former being a replica of the one that existed before the Grand Canal opened, the other partially filled in but has a history of its own, when looking at the tower’s portal bracings.
Of the eight bridges that existed, four have been profiled here, although one of them no longer exists. They are arranged in the order of direction of the canal, from Kiel to Rendsburg, starting with the first bridge at Pojensdorf.

Pojensdorf Bridge Built in ca. 1900 Photo taken in April 2011

Pojensdorf Bridge:  Spanning the Alte Eider Canal

Spanning the Alte Eider between Knoop and Pojensdorf, this steel stringer bridge may have replaced a lock and bridge that existed when the canal was in service. The bridge serves as the entrance to the village of Pojensdorf. While the bridge represents a typical short-span stringer bridge used on many roads in Germany, if one goes beyond the bridge and enters Pojensdorf, one will appreciate the landscape that was created by the old canal, let alone the Packhaus in Pojensdorf which was converted into a museum devoted explicitely to the history of this unique canal.

Towers of the Kluvensiek Bridge Photo taken in April 2011

Kluvensiek Drawbridge:

This (now former) drawbridge is probably the most ornamental of the bridges that spanned the Alte Eider Canal. The bridge was built in 1849/50 with the portal towers being designed by Carlshütte Iron Works in Rendsburg. Founded by Markus Hartwig Holler in 1827, the iron works company contributed a great deal with the construction of bridges and other forms of infrastructure along both the Alte Eider and the present Baltic-North Sea Canals up until the Grand Canal’s completion in 1895. However, the company’s heyday did not come until the Ahlmann family took over the business in 1909 and Kate Ahlmann took over the business when her husband Julius died in 1931. She had as many as 3000 workers at the iron works company by the 1950s and contributed a great deal to the economic growth in Rendsburg. Shortly before her death in 1963, a museum dedicated to the history of Carlshütte opened with numerous displays of artwork made of iron, which can be seen today. Sadly though, Carlshütte went into decline after her death and despite surviving one bankruptcy in 1974, the second one in 1997 led to the company’s liquidation. Carlshütte was named after Carl von Hessen, who governed Schleswig-Holstein at the time of the company’s founding.

When the canal was made obsolete by the Grand Canal, the lock was filled in with the exception of a small culvert to allow water to pass underneath. This included the bridge itself even though the two towers still remain standing and can be seen from the road heading to Kluvensiek from Bovenau and the Alte Eider bike trail.

Foundation with Carlshütte engraving. Photo taken in April 2011
Roadway fill over the lock remains Photo taken in April 2011
Portal view of the bridge at Klein Königsförde Photo taken in April 2011

Drawbridge at Klein Königsförde:

Coming up on Klein Königsförde, one will see a replica of a piece of history spanning the Alte Eider Canal on the old locks. Originally there was a bridge that was constructed in the mid-1800s using the double-leaf bascule design, and consisting of towers with an arch design. Yet before the Grand Canal was completed in 1895, the bridge was taken down and not replaced for over 100 years. In the early 1980s a replica of this bridge was constructed using mostly wood for the structure and steel chains for tower support as well as lifting the roadway, even though the crossing is in a fixed position. The purpose is to show the tourist what the bridge looked like during the days of the Alte Eider Canal. The bridge received the Europa Nostra award for its artwork in 1989 and is still in use for pedestrians and cyclists only. A park is located next to the structure on the west end to provide an opportunity to rest and view the village, located on the eastern side of the canal.

Photo taken in April 2011
Builder’s plaque for the rebuilt bridge. Photo taken in April 2011

Rendsburg Drawbridge:

Subtracting the city of Lübeck, located on the border to Schleswig-Holstein and Mecklenburg-Pommerania, if there is a city that can be considered the one with the most number of bridges worth seeing and learning about in Schleswig-Holstein, Rendsburg would be the place to look at. The city can pride itself for its High Bridge (which will be mentioned in the later columns), but it can also pride itself on the history of bridges that spanned both the Alte Eider and Grand Canals. The Rendsburg Drawbridge is one of the bridges that made the city popular. While there were numerous bridges of this type that were built in and around Rendsburg, this one stands out as it served a main road connecting Hamburg and Flensburg. Furthermore it was one of a few built using iron and may be one of the structures built using the iron from its production facility Carlshütte. Sadly, when the new canal was completed in 1895, the bridge lost its importance and was subsequentially removed. The canal eventually was converted into a harbor, which is still in use today for smaller boats entering and exiting the Grand Canal. Interesting enough was the fact that before the canal was made obsolete, an arch bridge took its place for a while but it is unknown when it was built and when it was removed. Also worth noting is the fact that the drawbridge was overshadowed by bigger and longer bridges spanning the longer canal- one for the trains (High Bridge) and one for the road.

Link: http://www.geschichte-s-h.de/vonabisz/rendsburg.htm

After a tour of the bridges along the Alte Eider Canal, the last segment of the revised tour guide series along the Grand Canal will focus on Kiel, its easternmost terminus. Apart from some neat bridges in the city center, there are some to the east of the city along the Schwentine that are worth noting and visiting. The Schwentine also empties into the Baltic Sea through the Kiel Fjorde but opposite the terminus of the Canal.

bhc-logo-newest1

 

The Bridges along the Baltic-North Sea Canal Part II: The Rendsburg High Bridge

Rendsburg High Bridge in Rendsburg, Germany Photo taken by the author in April 2011

Information:

Location: Baltic-North Sea Canal at Rendsburg, Schleswig-Holstein, Germany

Description: Main span: Cantilever Warren through truss with transporter (main span), steel trestle approach span (south) and loop approach (north)

Length: 7 km (total) Of which: 2468 main span; loop approach 4.5 km

Built: 1913 by Friedrich Voss and  C.H. Jocho of Dortmund

Travelling north to Flensburg on the Schleswig-Holstein-Express (the SHE) one evening in May 2010, I was chatting with four passengers heading home to the Rum capital of the world, talking about break-ups, broken marriages and partners cheating on them, when we suddenly found ourselves taking off from the ground. To think that most of the German state is flat consists of mainly farmland and coastal areas, to go from travelling on the ground to travelling in the air in a matter of seconds is like Eliott and E.T. flying in the air by bike. Yet the sound of metal to metal contact, especially when going over the steel towers revealed that whatever we were crossing was huge, the spectacular view of the lights of the town below and the body of water covered in emerald green lights was gorgeous.  After going through the steel truss mechanism, we made our descent in a curly-Q fashion before touching the ground and stopping at our next station. Our conversation had stopped in favor of the structure’s admiration, a sign that homage needed to be paid to a gigantic symbol that bridges the past with the present, the lover on one place with one in the other, and the impossible with the reality.

Especially the last one is what describes the Rendsburg High Bridge, spanning the Baltic-North Sea Canal in Rendsburg, located between Hamburg and Flensburg. The bridge was the masterpiece of Friedrich Voss, who had built two other structures along the Grand Canal at Hochdonn and Kiel as well as numerous others in the northern half of the country, concluding the two-span arch bridge at Friedrichstadt. It took 1.5 years to build the main attraction along the canal, which after 104 years, it still serves as the anchor that makes the Grand Canal and Rendsburg the place to visit.  What Voss did with the bridge was unthinkable, impossible and even insane in the eyes of many locals during that time. While steel trestles and a through truss design were his signatures for long-span structures like the aforementioned bridges, Voss needed a main span that would carry both horse and buggy (and later cars) as well as rail traffic. Henceforth as one of the feats, Voss chose the cantilever Warren span, whose roadway would serve rail traffic connecting Hamburg and Neumünster to the south and Flensburg and Scandanavia to the north. Hanging from the main span is the transporter span, which even today carries cars, bikes and pedestrians across the canal between Rendsburg and Aldorf. The transporter operates four times an hour in both directions during the day and takes 4-5 minutes to cross, half as long as when crossing the entire bridge via SHE.

1452200_706037926081850_824169720_n

Even more unique is the north approach. Already in existence was the train station for it served rail traffic between Kiel and Husum, the problem came with how the approach span should descend from 50 meters above water to just over zero. This was where Voss referred to the history books and chose the loop approach. Using the Hastings Spiral Bridge as reference, the loop approach provides travelers with an opportunity to gradually glide down from the bridge, making a circle of 360°. The 1895 bridge over the Mississippi River was the first bridge to feature this loop approach for engineers and bridge builders at Wisconsin Bridge and Iron Works had the problem of the bridge extending into Hasting’s business district, which already had numerous buildings and traffic at that time. Therefore, the south approach consisted of the loop approach, thus encouraging cars to glide down into the city center like a marble.

The problem was similar with the north approach, as it consisted of much of Rendsburg’s city center and housing area, combined with remnants of the old canal and the harbor area connected with the new canal. Therefore, Voss and his men devised a plan where a loop approach would feature first a series of steel trestles at the height of between 40 and 50 meters above water level, followed by earthen berms with concrete arch spans crossing main streets,  after the descent of 40 meters. A Warren deck truss span crosses the rail line as it approaches the end of the loop. The total length of this loop approach alone is 4.5 km. The area the loop encircles consists of housing and therefore was later named Schleife.

On 1 October, 1913, after 1.5 years of work, Voss and 350 of his men from the bridge-building firm C.H. Jucho of Dortmund completed the work, and the bridge was open to traffic. The bridge and transporter complex has operated almost unaltered ever since, sustaining minimal damage in World War II. The bridge was rehabilitated with rust protectant being added to the steel bridge between 1993 and 2012. The rail line was electrified in 1995, which resulted in the portal and strut bracings of the through truss span being lifted. Instead of the two-rhombus portal bracing, the main span now had A-frame portals, high enough for trains to pass through. Sadly though, the transporter portion of the bridge is being replaced even as this article is being reproduced for this page. On 8 January 2016, the transporter collided with a ship as it was passing underneath the bridge. The boat operator and another passenger were injured in the wreck. After thorough investigations by the local authorities and the Ministry of Transportation, it was concluded that the transporter could not be salvaged and was therefore removed from the bridge. A replacement replicating the original transporter is currently being constructed and should be installed by 2017/18.

1458542_706037582748551_523967846_n

I had a chance to visit the bridge again in 2011, this time filming the crossing of the bridge and its transporter, but also following the path of the bridge from the start of the loop approach on the ground to the main span. While I never got a chance to see the Spiral Bridge as it was torn down in 1951, the Rendsburg High Bridge is nothing anyone has ever seen before. It is amazing just to be in a small suburb that is encircled by the loop approach, listening to trains cross it on an hourly basis. Its tall and towering trestles cannot be missed when travelling through Rendsburg. But the main span is just as amazing, for it has a total height of 68 meters, visible from 20 kilometers, making it one of the tallest structures along the Grand Canal.  But I also noticed that the bridge with its wonderful work of art has not yet been recognized on the national and international scale. With the Vizcaya Bridge being nominated as a UNESCO World Heritage Site in 2013, the Firth of Forth Bridge scheduled to be nominated in 2015, the Rendsburg High Bridge Complex should be considered another UNESCO site as well because of the engineering feats that Voss accomplished in building this superstructure but also because the bridge still functions as a normal crossing of its kind today, just like it did when it opened to traffic in 1913. This is something that has made Rendsburg famous and makes it one of the wonderful works of art in Schleswig-Holstein, Germany and central Europe. Already it was given the Historische Wahrzeichen der Ingenieurbaukunst in Deutschland Award (Historic Recognition of the Works of Engineering in Germany) in 2013, on its 100th birthday. Chances are, more accolades will follow for this iron lady, whose total length of 7 kilometers (2,400 m main span) still makes it the longest railway bridge in Germany.

1422639_706037832748526_1428682710_n

To close this documentary about this bridge, the third and most important part of the Tour along the Grand Canal, there is a saying that applies to any bridge enthusiast. You are never a true pontist unless you visit at least a couple key engineering works. In my book, one should really pay homage to the Rendsburg High Bridge. It is an engineering work of achievement that is underrated and something that awes every engineer to this day. Every engineer has his creative talents, which Voss had when building this bridge. It has withstood the test of time and is still a work of art one should see, when visiting Germany. It is hoped that it will one day be a UNESCO site. It will eventually for it deserves this honor.

Author’s note:

You can view the photos of the Rendsburg High Bridge via facebook site. Click here to have a look at every aspect photographed during my visit in 2011.

Some videos of the bridge can be viewed below as well:

And some links to provide you with some more information on the Rendsburg High Bridge:

http://www.rendsburger-hochbruecke.de/

http://www.move-team.de/artikel/rendsburg.html

This bridge was used as a logo for the Bridgehunter’s Chronicles from 2011 until its retirement and replacement with the current logo in 2015 using another Schleswig-Holstein bridge in its place, the Fehmarn Bridge. This is what the Rendsburg variant looked like.

 

 

 

 

 

The location of the Rendsburg High Bridge and the train station can be found on the map here:

 

bhc-logo-newest1

Mystery Bridge Nr. 78: Turner Truss Bridge in Chemnitz, Germany

imgp3881

In 1920, an American engineer, Claude Allen Porter Turner (CAP) designed two different bridge designs that were supposed to simplify the way bridges are constructed. The first was the Turner Flat Slab, a design where the decking portion of the concrete slab was strengthened, thus eliminating the need of extra piers and it would encourage the spans to be longer than usual. The second is a modified version of the Warren truss, where additional lateral beams are constructed midway through the A-portion of the truss, thus creating an A-frame for each panel. Both of these concepts were practiced on the Liberty Memorial Bridge in Bismarck, North Dakota. Constructed in 1922, the bridge featured three Turner through truss spans of 476 feet each, plus the Turner flat slab approach spans totalling 1105 feet- 625 for the west spans and 480 for the east side. It was the only known work for the engineer, whose career started at Gillette-Herzog Manufacturing in Minneapolis in 1900 but then started his own business after declining an offer to relocate to Chicago. The product of the American Bridge and  Foundation Bridge Companies remained in service until its replacement in 2008. It was believed to have been the only one of its kind built…..

This slideshow requires JavaScript.

…..that is until this recently discovery in Chemnitz, Germany!

Located just two kilometers south of Chemnitz Central Railway Station along the Dresden-Hof-Nuremberg Magistrate at Bernhardstrasse, this pony truss span resembles the same Turner design as the Liberty, but with two unique differences: 1. The truss span is pony and 2. The endposts are vertical. Like the Liberty, the connections are riveted, even in the A-frames of the Warren. Yet some unique features of the truss include the curled cap at the top of the endpost. The end post itself has an I-shape. It is unknown what the length of the bridge is, but it is estimated to be between 60 and 70 meters long. The width is 10 meters between the trusses, the sidewalks on the outer edge is 2-3 meters, thus totaling the width of 16 meters. As the East German government built or imported truss bridges during its 40 years existence, whose designs were mainly Warren (and many modified versions of it) and had not much design to it, it is likely that this bridge was constructed during the 1920s, maybe the 1930s, and survived the bombings of Chemnitz during World War II. 90% of the city center was destroyed by 1945 and 70% of the houses and buildings, dating back to the 1800s were either in shambles or badly damaged. This bridge may have survived the bombing unscathed. Yet the lack of scars from the war might lead to a dispute over the bridge. It may have been rebuilt using replacement parts, but most likely in the late 1940s to encourage passage over the magistrate. If that was the case, then the bridge was built before the Soviets gained full control of its militarized zone, which became the German Democratic Republic (a.k.a. East Germany), while Chemnitz was renamed Karl-Marx-Stadt, a name that remained on the maps until German Reunification in 1990.

With this in mind, let’s look at the following questions to be solved regarding this bridge:

  1. When was this bridge built?
  2. Who designed the structure? Did this engineer use the Turner design or was it just simple coincidence?
  3. Lastly, if this bridge is considered a Turner truss, are there other designs of its caliber that exist? If so, where?

What do you know of this bridge, let alone the Turner truss? Share your thoughts either on facebook page or by using this contact form.  A tour guide on the bridges in Chemnitz is in the making and if there is enough information, this bridge will be added. Let’s see if we can solve this mystery surrounding this bridge, shall we?

Best of luck and looking forward to the findings. 🙂

bhc-logo-newest1

Mystery Bridge Nr. 77: A Bridge Shaped Like a Shoe

Photos taken in December 2016

Our first Mystery Bridge of 2017 takes us back to Saxony in eastern Germany, and in particular, this bridge. This unusual structure spans the Chemnitz River at Hauboldstrasse, roughly 100 meters south of the Müllerstrasse Bridge in the northern part of Chemnitz. This was discovered while bridgehunting and visiting the Christmas market this past Christmas and is considered one of the most unusual bridges I’ve seen so far.

The bridge features a rigid Luten arch span, but the piers are engraved into the abutments, The east end appears to have the characteristics of a concrete arch bridge, yet the west end has piers that eventually curve to go vertically into the water, like a timeglass. Such piers can be found with the new I-35W Bridge in Minneapolis, when it was constructed in 2009. The bridge’s length is about 70 meters with a width of only five meters, barely wide enough for car to cross. More unusual is the thickness of the concrete and Art Greco design on the top railings. Most concrete bridges built today depend less on concrete and more on steel for supports making them slender in design, but also safer for cars, pedestrians and cyclists to cross. Engineers went out of their way to carve some unusual artwork with this bridge, using as much concrete as possible- even for its third unusual feature, the portal.  The portal itself can be found only on the east side overlooking the city center. It has a hexagonal design that is halved, resembling either a basketball high-top or high heels turned upside down, pending on how you look at it.

The bridge is open to pedestrian and bike traffic connecting an industrial area to the west with the neighborhood to the east. Unusual about this setting is there is not much of both, for much of the former is to the north. One needs to follow the smokestack of the regional power company and take about 15 minutes to get there. The latter still has scars from World War II for much of that area has open lots where houses once stood before the war, creating an empty eerie scene while biking towards the city center. Those that are still standing have been renovated to make it liveable and more accessible for handicaps, while having reintroduced vintage lanterns either of sodium or gas-powered. It is possible that the bridge may have been built in the 1990s to provide access to the neighborhood and make it more accessible and attractive. On the other hand, having the Müller Strasse Bridge to the north, with four lanes of cars, plus additional lanes for bikes and pedestrians, it is possible that the pedestrian bridge was built much further back- between 1930 and 1960, which was later supplanted by the current crossing, but was left in place, as people used it more often as it is part of the local bike trail.  Given the wear and tear of the structure, my hunches are that it was a product of the East German bygone era that has survived the test of time to date.

Smokestack of the Regional Power Company located north of the bridge.

But what do the locals think about this bridge? When was it built? Which engineer dated a woman with high heels and was inspired by her to build this bridge? What else do we know about the bridge’s history? Use the contact form and feel free to add some information in German as well as in English. As we know more about the bridge, it will be added to the tour guide that is being put together on Chemnitz’s bridges, a project that just started a few weeks ago and will continue during the first quarter of the year. Let’s see why the bridge is like it is, shall we?

Gas-powered vintage lantern
Sodium-powered vintage lantern

Chemnitz is also home of the iron viaduct, which I wrote about back in 2015. The bridge is still standing despite attempts by the German Railways to push through with demolishing and replacing the 1884 structure with a modern one to accomodate InterCity trains. More on the article here. Details and updates on the bridge’s situation will follow.

A map of the location of Shoe Bridge is below:

2016 Ammann Awards Results

MacArthur Bridge: Winner of the Best Photo Award. Photo taken by Roamin Rich

Record voter turnout for the Awards. Saxony, Route 66,  and Elvis Bridges in Kansas dominating the categories. Eric Delony and John Marvig honored for Lifetime Achievement.

Since 2011 the Bridgehunter’s Chronicles has been hosting the Othmar H. Ammann Awards for historic bridges, focusing on successful efforts in preserving them as well as places with a wide array of historic bridges to see as a pontist, tourist, photographer, historian/teacher or a simple passer-by. In its sixth year of the awards, we saw records getting smashed for the most number of votes, let alone the lead changes that came about in some categories, complete blow-outs in others, thus making this race the most exciting and nail-biting in history. No matter which category you were watching, you probably saw your favorite going from worst to first in as many votes as in the category Best Photo, which saw votes in the thousands, plus a voting arms race among three candidates. We also saw some deadlocks for Tour Guide International, Lifetime Achievement (for second place) and Mystery Bridge, which got people wondering what characteristics led to the votes, because they must have been this good. For some that lucked out, the Author’s Choice Awards were given as consolation, which will be mentioned here as well.

So without further ado, let’s have a look at the results, each of whom has a brief summary:

BEST PHOTO:

This category was the most exciting and nerve-racking as we saw a battle for first place take place among three candidates:

The MacArthur Bridge in St. Louis (Taken by Roamin Rich), Bull Creek Bridge in Kansas (Taken by Nick Schmiedeler) and the Paradiesbrücke in Zwickau, Germany (Taken by Michael Droste).

Despite Zwickau’s early lead in the polls and regaining the lead for a couple days a week ago, MacArthur Bridge won the voting arms race with 38.5% of the votes, outlasting Bull Creek, which received 28.2%. Paradiesbrücke got only 16%.  Devil’s Elbow Bridge in Missouri received 4.2% with fifth place going to the same person who photographed the Paradiesbrücke but in the daytime (2.2%). The remaining results can be seen here.  For the next three months, the winner of the Best Photo Award will have his photos displayed on the Chronicle’s areavoices website (here) and the Chronicles’ facebook page (here), second place winner will have his photo on the Chronicles’ facebook group page (here), and the third place winner on the Chronicles’ twitter page (here). All three will also be in the Chronicles’ wordpress page (here), rotating in gallery format in the header.

Röhrensteg in Zwickau (Saxony), Germany

TOUR GUIDE INTERNATIONAL:

This category was perhaps the most watched by readers and pontists on both sides of the Atlantic Ocean, as four cities were vying for first and third place, respectively before another city decided to crash the party within a matter of only 24 hours before the polls closed, effectively deciding the winner and third place winners. Coincidence or a plot, that remains to be seen. It is known that these five bridge cities will receive further honorable mentions in the near future. The winner of this tight race was Zwickau (Saxony), Germany, which after battling with Calgary during the competition, edged the largest city in Alberta and fifth largest in Canada by a margin of 25.1% to 24%. The reason behind that was the city’s selection of the most unique bridges, one of which, the Röhrensteg, had received the Author’s Choice Award for Best Historic Bridge Finding. There is also the aforementioned Paradiesbrücke, the Zellstoff Truss Bridge and the Schedewitz Bridge, all along the Mulde River and a stone arch viaduct near the train station. The city is worth a treat.

Third place winner goes to Canal Bridges in Brugges, Belgium, which went from seventh place to its final spot in less than 24 hours, knocking the River Tyne Bridges in Great Britain and the Bridges in Glauchau (Saxony) to fourth and fifth places. Brugges had 13.5% of the votes, followed by The River Tyne with 12.6% and Glauchau with 10.5%. Glauchau also received the Author’s Choice Award for its historic bridge find because of its many arch bridges that don’t span the Mulde, like in neighboring Zwickau, but along the railroad line and along the high road leading to the two castles located on the hill overlooking the river valley.

Beech Road Bridge in Tompkins County, NY. Photo taken by Nathan Holth

TOUR GUIDE USA:

Unlike in the international competition, this category proved to be no competition at all, for the Bridges of Tompkins County, New York, laden with various types of bridges dating back 150 years, including two iron truss bridges, a covered bridge and some arch bridges, left the competition in the dust. Even at the beginning of the race, it garnered an average of 92% of the votes. In the end, the county won an astounding 89.3%. The closest second place winner was the Bridges in Washington County, Maryland, which had 3.2% of the votes, edging the third place winner, The Bridges of Boone County, Iowa with 2.9%. Having lost the Wagon Wheel Bridge in December to demolition and removal after years of neglect, the Marsh rainbow arch bridges and Kate Shelley’s Viaduct could not compensate of the loss and therefore, people looked to its winner as their bridges are still in used, most of them after having been restored.

Colebrook Bridge. Photo taken by Ulka Kern

BEST KEPT SECRET FOR A US BRIDGE:

Some bridges deserved to immersed in water and covered in coral, used for habitat for underwater life. Others deserved to be immersed and later exposed when the weather extremities are at their worst. The Colebrook Lake Bridge in Connecticut is one that definitely is in the second category. When Colebrook Lake was made in 1969, this Warren pony truss span with riveted connections  became part of the lake bottom and a distant memory among local residents and historians. Its existence came as a surprise, thanks to a severe drought that lowered the lake to its pre-made stage and exposed this structure. Now residents and historians are finding more information on this structure while looking at ways to either reuse it or leave it for nature. Colebrook won the award in this category with 57.4% of the votes.  Second place went to the Marais de Cygnes Bridge in Kansas, one of the rarest Parker through truss bridges in the state, with 22.8% of the votes. Clark’s Creek Bridge, one of many Elvis bridges discovered by Nick Schmiedeler this past year, finished third with 15.4%, yet it was the winner in another category! More on that later. The remaining finishers had an average of 1.5% of the votes, which were a lot given the number of voters having gone to the polls.

Prince Alfred Trestle in Australia. Photo taken by Delta Charlie Images

BEST KEPT SECRET FOR AN INTERNATIONAL BRIDGE:

Australia’s historic bridges are ones that are worth traveling to visit, for many of them were built by European immigrants with ties to the bridge building and steel industries in their homeland. Only a handful were built locally. The winner and second place winners in this category come not only from the Land Down Under, but also in the state of New South Wales, which is the most populated of the states. The Prince Alfred Bridge, a nearly 150-year old wooden trestle bridge, won the race with 31.4% of the votes. This was followed by another bridge in the state, the Bowenfels Railroad Viaduct, which received 15.9% and the Ribblehead Railroad Viaduct at Yorkshire Dales in Great Britain, which got 8.7%. Tied for fourth place with 7.7% were the Isabella Bridge in Puerto Rico and the Sinking Bridge in Corinth, Greece. And sixth place finisher was the Abteibrücke in Berlin, Germany, with 6.5%, edging its inner-state competitor Röhrensteg in Zwickau and the world’s smallest drawbridge in Sanford, Nova Scotia (Canada) with 6.2% of the votes.

BEST EXAMPLE OF A RESTORED HISTORIC BRIDGE:

In this category, we looked at historic bridges that were preserved for reuse after being considered redundant for the highways due to age, functional and structural deficiencies and cost of maintenance. Like in Tour Guide USA, this competition was very lopsided for a covered bridge far outgained the metal truss bridges and arch bridges in the competition. The Beaverkill Covered Bridge, built in 1865 and located in the Catskills in New York, received a full makeover, using state-of-the art technology to strengthen existing bridge parts and replacing some with those of the exact shape and size. This bridge received 62.4% of the votes. Second place finisher was the Green Bridge (a.k.a. Jackson Street and Fifth Avenue Bridge in Des Moines, Iowa. The three-span Pratt through truss bridge, built in 1898 by George E. King, received its second makeover in 20+ years in order for it to continue serving a bike trail network serving Iowa’s state capital. It received 7.1% of the votes and would have soundly won the competition had one subtracted Beaverkill’s success. Third place finisher was the former Bird Creek Bridges along Route 66 in Oklahoma. The multiple-span K-truss bridges were relocated to Molly’s Landing on one side of the highway, Roger’s Landing on the opposite end, each serving as exhibits and entrances for light traffic. Bird Creek received 6.5% of the votes. Bottoming out the top six are Wolf Road Bridge near Cleveland, Ohio with 4.2%, the County Park Bridge in Hamilton County, Indiana with 3% and Houck Iron Bridge in Putnam County, Indiana with 2.4%.

Bonnie Doon Bridge in Lyon County, Iowa. Photo taken by John Marvig.

MYSTERY BRIDGE- USA:

For this category, we’re looking at bridges that are unique but missing information that would potentially make them historically significant and therefore, ripe for many accolades. Although the votes were made into one category, the winners have been divided up into those in the US and the structures outside the country.  For the US, the top six finishers originated from Iowa, with the top two finishers originating from Lyon County.  The Bonnie Doon Bridge, located along a former railroad bearing her name between Doon and Rock Rapids, won the division with 19.8% of the total votes. Not far behind is the Beloit Bridge near Canton, South Dakota, which received 13.2%. Third Place goes to a now extant Thacher through truss bridge in Everly in Clay County, which received 7.7%, 0.6% more than its fourth place finisher, the Kiwanis Railroad Bridge in Rock Valley in Sioux County.  Fifth place goes to the Pontiac Lane Bridge in Harrison County, with 6.1% of the votes. Yet latest developments in the form of photos is almost bringing the Whipple through truss bridge to a close. More later. In sixth place, we have a concrete arch viaduct built by H.E. Dudley near Richmond in Washington County, with 5.5% of the votes. According to John Marvig, that case was recently brought to a close as the now extant bridge was replaced with a steel girder viaduct in 1947.

Camelback arch bridge in Altenburg

MYSTERY BRIDGE- INTERNATIONAL:

All of our entries for the international aspect of mystery bridges were from Germany, specifically, the states of Thuringia, Saxony, Saxony-Anhalt and Brandenburg.  Our first place finisher goes to the concrete camelback pony arch bridge near Altenburg. That structure was built between 1900 and 1920 and still retains its original form. Second place goes to the railroad viaduct in Grosskorbetha, located near Bad Durremberg in Saxony-Anhalt. The 1910 arch structure used to serve a local road to Wengelsdorf, but was removed in November this year, as the German Railways plan to modernize the Y-point where the raillines split to Leipzig and Halle from the south.  The Railway Station Bridge in Halle finished in third, followed by an unusual wire truss bridge in Potsdam and finally, the truss bridge at Schkopau Station, south of Halle.

Clarks Creek Bridge in Geary County, Kansas. Photo taken by Nick Schmiedeler

BRIDGE OF THE YEAR:

The category Bridge of the Year goes out to bridges that made waves in the headlines because of (successful) attempts of restoring them, as well as interesting findings. Our top six finishers in this year’s category consists of those by Julie Bowers and crew at BACH Steel, Elvis Bridge finder Nick Schmiedeler and those along Route 66. Clark’s Creek Bridge in Kansas came out the winner with 53.4% of the votes. This bridge was discovered by Schmiedeler and was one of the first bridges that were dubbed Elvis Bridges, meaning these bridges had been abandoned and hidden under vegetation for many decades. Clark’s Creek is a King Bridge product having been built in 1876.  Second place finisher is the Springfield Bowstring Arch Bridge with 18.1% of the vote. Thanks to Julie’s efforts, this 1870s structure is expected to be restored, relocated to a park and reused after years sitting abandoned, leaning to one side.  Third place finisher is the Times Beach Bridge spanning the Meramec River along Route 66 west of St. Louis, with 6.9% of the votes. This bridge was a subject of fundraising efforts to be restored as part of the Route 66 State Park Complex and bike trail. The bridge was recently given a reprieve from demolition by Missouri Dept. of Transportation. More later.  Rounding off the top six include Gasconade Bridge along Route 66 with 5.4%, Hayden Bridge in Oregon, another project by BACH, with 4.9% and Fehmarn Bridge in Germany with 3.2%. Word has gotten out that the sixth place finisher will receive a rehabilitation job, which will prolong its life by 30 years and keep its symbol as the icon of Fehmarn Island.

LIFETIME ACHIEVEMENT:

Our last category for the 2016 Ammann Awards is for Lifetime Achievement. Unlike this year, there are two winners for this prize, one emeritus and one who is the youngest to win the awards. Eric Delony, who spearheaded efforts in preserving historic bridges through a nationwide program and was director of HABS-HAER for 32 years, received the Lifetime Achievement Emeritus Award. More on his work can be seen hereJohn Marvig became the youngest pontist to win the Lifetime Achievement thanks to his efforts in identifying, photographing and working with authorities in preserving railroad bridges in the northern part of the US. Since having his website in 2010, his focus went from railroad bridges in Minnesota and Iowa to as many as 9 states. The freshman at Iowa State University received 49.3% of the votes, outfoxing the second place finishers, Royce and Bobette Haley as well as Nick Schmiedeler. Christopher Marston finished fourth with 5.4% of the votes, which was followed by Ian Heigh (4%), Kaitlin O’shea (3.5%) and BACH Steel (2.9%).

Bull Creek Bridge in Kansas. Photo taken by Nick Schmiedeler

FAZIT:

And with that comes the closing of one of the most intensive competitions involving historic bridges in the history of the Ammann Awards. It was one that got everyone excited from start to finish, and for many bridges, there is a ray of hope in their future as more and more officials and the communities have become interested in preserving what is left of their history for the younger generations to enjoy. For some profiled that have a questionable future, not to worry. If one person refuses to preserve, another one will step up in his place, just like the electors in the US elections. The interest in historic bridges is there and growing. And that will continue with no interruptions of any kind.

The full results of the Ammann Award results can be found in the Chronicles’ wordpress page by clicking here. Note there are two parts just like the ballots themselves. The links to the pages are also there for you to click on.

This is the last entry carrying the Jacob slogan. Since September 2016 the Chronicles has been carrying the slogan in memory of Jacob Wetterling, an 11-year old boy who was kidnapped on 22 October, 1989 and subsequentially murdered. His remains were discovered in September 2016 bringing a 27-year old case to a close. The murderer has since been sentenced to 20 years in prison with a lifetime incarceration in a state mental hospital to follow. His house was demolished on Christmas Day. As the murder happened closer to home (the author originates from Minnesota), the Chronicles started its Ammann Awards nominations early and carried this unique slogan in his memory. To his parents and friends, he will be remembered as a boy with dreams that never came true, yet he came home to rest and now is the time to bridge the gaps among friends, family and acquaintences, while keeping in mind, dreams can come true only if we let them, and help them along the way to fulfilling them with success and respect.

From the next entry on, the Chronicles will be carrying its present slogan, which is an upgrade from its last one. Some changes will be coming to the Chronicles, which includes establishing a Hall of Fame for the bridges nominated for the Ammann Awards as well as other interesting parts that will be added. Stay tuned, while at the same time, have a look at some mystery bridges that are in the pipelines and are on the way. 🙂