Mystery Bridge Nr. 86: Brick Culverts spanning Drainage Canals and Gullies along the North Sea

north sea 3

Culverts- tunnels that channel water under roads. Culverts are used as a substitute for (mainly small to medium-sized) bridges spanning creeks and small waterways as they have several advantages. First and foremost, they provide minimum maintenance, as either earth and roadway cover them or the short crossings are anchored to the ground and supported by abutments. It acts as a canal for directing water under the roadway but also as a dam to keep debris from blocking the roadway. Yet the drawbacks to culverts is that they are not really effective against high water for floodwaters can undermine culverts by washing out the roadways approaching them. In some cases, they can even collapse, swallowing cars in the process, if they attempt to cross them. If they are not washed out by flooding, the high water can cause flooding upstream up until the crossing itself. In summary, engineers should really think about the advantages and disadvantages of culverts before they even implement them as replacements for bridges deemed obsolete.

north sea 1

This mystery bridge deals with a culvert (or should I say a series of culverts) but in order to better understand the logic behind this, we need to look back at the types of culverts that exist and the oldest known culvert known to human kind.  There are five different types of culverts that are used today: pipe, box, pipe arch, arch and bridge slab- the first three can be multiple spans, the last two are single spans of up to 30 meters. All of them are usually built of steel, stone or concrete. Only a handful have been built using brick.

Arkadiko_Mycenaean_Bridge_II
Arkadiko Bridge in Greece. Photo taken in 2012 Flausa123 courtesy of wikipedia

 

The oldest known culverts that exist in the world go very far back- way back to the Bronze Age. There, you can find Arkadiko Bridge in the state of Argolis in Greece. Built between 1300 and 1190 BC, the stone culvert has a total span of 22 meters and an arch span of 2.5 meters. It is one of four remaining bridges of its kind using an Mycenaean arch design, all of them are located near Arkadiko.

The next one in line is a stone arch bridge over the River Meles in Izmir in Turkey. Built in 850 BC, this bridge is the oldest of its kind still in use. In Australia, the Macquarie Bridge, featuring a double-barrel arch culvert, is considered the oldest bridge still in use. The 1816 bridge can be found in the Royal Botanical Gardens in Sydney. The Old Enon Stone Arch Culvert, built by Samuel Taylor in 1871 and spans Mud Run in Ohio, is the oldest known culvert in the US and one that was built using limestone.

north sea 5

The culverts in the Eiderstedt region in the German state of Schleswig-Holstein may not be as old as the aforementioned bridges, nor is it definitely the oldest in Germany- that honor goes to the Stone Arch Bridge (built in 1146 AD) over the River Danube in Regensburg (Bavaria). But given their appearance, they are one of the oldest in the region, let alone in Schleswig-Holstein. The culverts discovered during my tour along the North Sea to Westerheversand Lighthouse consists of box culverts, built using brick as material. They each span a drainage canal which is used to divert water away from the fields during high tides (German: Flut). And despite the bike trail careening along the dikes that are lined along the shores of the North Sea, these culverts are still in use for farm vehicles. The concept is odd, but because farming is practiced in the Eiderstedt region, brick culverts were used along with concrete and sometimes wooden bridges to haul farm vehicles.

 

The dikes were established in the early 1960s, in response to a massive storm that flooded large parts of western Schleswig-Holstein, Lower Saxony and the City of Hamburg in 1962. 400 people lost their lives in Hamburg alone, as dike failures took them by surprise and almost all of the hanseatic city was under water. With the dikes came the rechanneling of waterways, eliminating natural gullies, as one can see while traveling along the North Sea coast. The damming of the rivers, such as the Eider, Au, Sorge and Treene, caused the massive extinction of marine wildlife, including the sturgeon, which used to lay eggs upstream close to the rivers’ starting point. The last sturgeon was caught in 1969 and there has not been a single sturgeon in the region ever since. The creation of the Eidersperrwerk near St. Peter-Ording put the last nails in the coffin of the natural cycle of the North Sea, protecting farmers and residents from the flooding processes.

 

north sea 4
Detailed markings of one of the culverts. Look at the rust and moss that has developed over the years.

 

Yet the culverts seen in the pics are much older than the dike and drainage systems that have existed since the 1960s. Judging by the green and yellow moss on the brick and the decoloration of the brick and concrete, it is estimated that the culverts are at least a century old, if not older. Unfortunately, there are no records of the date of construction of the culverts, let alone the bridge builder(s) responsible for building them. Not even the German bridge website Brueckenweb.de has any data on the bridges, nor the Dusseldorf-based Structurae.net. Only a map where the author found the structures and the pictures are the only piece of information that is known to exist.

 

While some records may be available through local authorities in Husum, St. Peter-Ording or Eiderstedt, the chances of finding concrete information is very slim, because the culverts are only 20 meters long with a center span of only 5 meters, and there are dozens of them that are known to exist, aside from the ones that were found near Westerhever.

north sea 2

Do you know of some information on the history of these ancient culverts? Let alone the number of culverts that still exist in the region alone? If so, then please contact the Chronicles and share some information about them. Any clues, including photos, will be of great help. The culverts will be included in the book project on the bridges in Schleswig-Holstein. Information on how you can contribute can be found here. (Hinweis auf Deutsch: Sie können die Information in der deutschen Sprachen übersenden, da der Autor sehr gutes deutsche Kenntnisse hat.)

 

The culverts and the covered bridge profiled here, are a couple of many bridges the author found during his trip to the Eiderstedt region. However, there are plenty more that visitors should see while vacationing there. The author has a few bridges that one should see while visiting the Eiderstedt region. The tour guide will come very soon.

 

Author’s notes:  Enclosed is a map with the exact location and specifics of the culverts found during the trip. Information on the Great Flood of 1962 in Hamburg/ Schleswig-Holstein can be found here. A video on the event can be found here.

Ironically, an even bigger flood occurred 16 years later after the dikes and dams were built. It all occurred during the year summer never existed which ended with the Great Blizzard of 1978/79 that crippled the northern half of Germany, stranding thousands of motorists and causing massive flooding in Schleswig-Holstein alone. More information can be found here. and here.

 

 

bhc-logo-newest1

Advertisements

Mystery Bridge Nr. 86: Brick Culverts Spanning Drainage Canals and Gullies Along the North Sea

north sea 3

Culverts- tunnels that channel water under roads. Culverts are used as a substitute for (mainly small to medium-sized) bridges spanning creeks and small waterways as they have several advantages. First and foremost, they provide minimum maintenance, as either earth and roadway cover them or the short crossings are anchored to the ground and supported by abutments. It acts as a canal for directing water under the roadway but also as a dam to keep debris from blocking the roadway. Yet the drawbacks to culverts is that they are not really effective against high water for floodwaters can undermine culverts by washing out the roadways approaching them. In some cases, they can even collapse, swallowing cars in the process, if they attempt to cross them. If they are not washed out by flooding, the high water can cause flooding upstream up until the crossing itself. In summary, engineers should really think about the advantages and disadvantages of culverts before they even implement them as replacements for bridges deemed obsolete.

north sea 1

This mystery bridge deals with a culvert (or should I say a series of culverts) but in order to better understand the logic behind this, we need to look back at the types of culverts that exist and the oldest known culvert known to human kind.  There are five different types of culverts that are used today: pipe, box, pipe arch, arch and bridge slab- the first three can be multiple spans, the last two are single spans of up to 30 meters. All of them are usually built of steel, stone or concrete. Only a handful have been built using brick.

Arkadiko_Mycenaean_Bridge_II
Arkadiko Bridge in Greece. Photo taken in 2012 Flausa123 courtesy of wikipedia

 

The oldest known culverts that exist in the world go very far back- way back to the Bronze Age. There, you can find Arkadiko Bridge in the state of Argolis in Greece. Built between 1300 and 1190 BC, the stone culvert has a total span of 22 meters and an arch span of 2.5 meters. It is one of four remaining bridges of its kind using an Mycenaean arch design, all of them are located near Arkadiko.

The next one in line is a stone arch bridge over the River Meles in Izmir in Turkey. Built in 850 BC, this bridge is the oldest of its kind still in use. In Australia, the Macquarie Bridge, featuring a double-barrel arch culvert, is considered the oldest bridge still in use. The 1816 bridge can be found in the Royal Botanical Gardens in Sydney. The Old Enon Stone Arch Culvert, built by Samuel Taylor in 1871 and spans Mud Run in Ohio, is the oldest known culvert in the US and one that was built using limestone.

north sea 5

The culverts in the Eiderstedt region in the German state of Schleswig-Holstein may not be as old as the aforementioned bridges, nor is it definitely the oldest in Germany- that honor goes to the Stone Arch Bridge (built in 1146 AD) over the River Danube in Regensburg (Bavaria). But given their appearance, they are one of the oldest in the region, let alone in Schleswig-Holstein. The culverts discovered during my tour along the North Sea to Westerheversand Lighthouse consists of box culverts, built using brick as material. They each span a drainage canal which is used to divert water away from the fields during high tides (German: Flut). And despite the bike trail careening along the dikes that are lined along the shores of the North Sea, these culverts are still in use for farm vehicles. The concept is odd, but because farming is practiced in the Eiderstedt region, brick culverts were used along with concrete and sometimes wooden bridges to haul farm vehicles.

 

The dikes were established in the early 1960s, in response to a massive storm that flooded large parts of western Schleswig-Holstein, Lower Saxony and the City of Hamburg in 1962. 400 people lost their lives in Hamburg alone, as dike failures took them by surprise and almost all of the hanseatic city was under water. With the dikes came the rechanneling of waterways, eliminating natural gullies, as one can see while traveling along the North Sea coast. The damming of the rivers, such as the Eider, Au, Sorge and Treene, caused the massive extinction of marine wildlife, including the sturgeon, which used to lay eggs upstream close to the rivers’ starting point. The last sturgeon was caught in 1969 and there has not been a single sturgeon in the region ever since. The creation of the Eidersperrwerk near St. Peter-Ording put the last nails in the coffin of the natural cycle of the North Sea, protecting farmers and residents from the flooding processes.

 

north sea 4
Detailed markings of one of the culverts. Look at the rust and moss that has developed over the years.

 

Yet the culverts seen in the pics are much older than the dike and drainage systems that have existed since the 1960s. Judging by the green and yellow moss on the brick and the decoloration of the brick and concrete, it is estimated that the culverts are at least a century old, if not older. Unfortunately, there are no records of the date of construction of the culverts, let alone the bridge builder(s) responsible for building them. Not even the German bridge website Brueckenweb.de has any data on the bridges, nor the Dusseldorf-based Structurae.net. Only a map where the author found the structures and the pictures are the only piece of information that is known to exist.

 

While some records may be available through local authorities in Husum, St. Peter-Ording or Eiderstedt, the chances of finding concrete information is very slim, because the culverts are only 20 meters long with a center span of only 5 meters, and there are dozens of them that are known to exist, aside from the ones that were found near Westerhever.

north sea 2

Do you know of some information on the history of these ancient culverts? Let alone the number of culverts that still exist in the region alone? If so, then please contact the Chronicles and share some information about them. Any clues, including photos, will be of great help. The culverts will be included in the book project on the bridges in Schleswig-Holstein. Information on how you can contribute can be found here. (Hinweis auf Deutsch: Sie können die Information in der deutschen Sprachen übersenden, da der Autor sehr gutes deutsche Kenntnisse hat.)

 

The culverts and the covered bridge profiled here, are a couple of many bridges the author found during his trip to the Eiderstedt region. However, there are plenty more that visitors should see while vacationing there. The author has a few bridges that one should see while visiting the Eiderstedt region. The tour guide will come very soon.

 

Author’s notes:  Enclosed is a map with the exact location and specifics of the culverts found during the trip. Information on the Great Flood of 1962 in Hamburg/ Schleswig-Holstein can be found here. A video on the event can be found here.

Ironically, an even bigger flood occurred 16 years later after the dikes and dams were built. It all occurred during the year summer never existed which ended with the Great Blizzard of 1978/79 that crippled the northern half of Germany, stranding thousands of motorists and causing massive flooding in Schleswig-Holstein alone. More information can be found here.

 

 

The Bridges of Ulm, Germany

Neutor Bridge located northeast of Ulm Central Station (Ulm Hauptbahnhof). Photos taken in May 2015
Neutor Bridge located northeast of Ulm Central Station (Ulm Hauptbahnhof). Photos taken in May 2015

Located along the Danube River, the city of Ulm, with a population of over 123,000 is one of the oldest cities in Germany. First mentioned in 850, the city had straddled the river for almost a millenium, making it one of the key points of trade and commerce. It had once been declared an Imperial City by order of Friedrich Barbarossa in 1181. However, thanks to Napoleon’s conquest in 1805, Ulm was parted along the river, making it part of Baden-Wurttemberg, whereas the settlement east of the Danube was declared Bavarian and renamed Neu-Ulm. The names have remained the same ever since, although both cities are deeply engaged in joint ventures on the public and private scales, and are sister cities of New Ulm in Minnesota (USA). Some of the key characteristics Ulm has to offer include a professional basketball team “ratiopharm Ulm,” The Ulm Minster Cathedral with the world’s highest steeple surrounded by historic buildings and a large market square, the historic city hall, a pyramid-shaped modern public library, one of the largest collection of “Fachwerk” houses dating back to the Medieval Era (many located along the canals streaming through the southern part of the old town, and memorials honoring scientist Albert Einstein as well as Hans and Sophie Scholl, leaders of the White Rose movement that propagandized against the regime of Adolf Hitler.

And then there are the bridges that are worth mentioning. While all of the Danube crossings in Ulm/Neu Ulm were destroyed towards the end of World War II, a large portion of the pre-1945 bridges were spared  destruction and subsequentially repaired to make them functional again. Whether it is the Neutor Bridge or the stone arch bridges along the Blau Canal, or even the rebuilt Herd Bridge, Ulm today still has a wide array of bridges that fit the cityscape, some of which conform to the Renaissance period landscape in a way that a person is actually walking back into time to get a glimpse of Ulm’s past.

This tour takes you to the most noteworthy bridges in Ulm one should visit while visiting the city. The goal is to provide you with a glimpse at the role of the bridges in the city’s development and their survival through two World Wars. While there are over five crossings over the Danube River, the Herd Bridge will be profiled here because of its historic significance despite being rebuilt after World War II. The other bridges were built in the 1960s on and do not have the historic taste in comparison with the bridges mentioned here. For some of the other bridges profiled here, information is missing on their history- in particular, the bridge builder and the year of construction. If  you wish to add some information about these bridges, please contact Jason Smith at the Chronicles, and that information will be added.

A map of the bridges’ and their location are found here and the bridges….

map

Herdbrücke with Neu-Ulm in the backrgound
Herdbrücke with Neu-Ulm in the backrgound

Herdbrücke (EN: Herd Bridge):  

Location: Danube River (main channel) at Donaustrasse (Ulm) and Marienstrasse (Neu Ulm).

Bridge type: Closed spandrel arch bridge with ribbed spandrels

Length: 75 meters

This bridge is one of two crossings that carry a single street over both channels of the Danube River. Ironically, the Gänsetorrücke in Neu Ulm, despite spanning the narrower channel of the river is longer than this bridge by about 21 meters. This bridge features a single span elliptical arch design wide and tall enough to accomodate boat traffic along the river. Built in 1949, its predecessor was a three-span brick arch bridge built in 1832 and named after Ludwig Wilhelm. Unfortunately in an attempt to slow the advancement of American and British troops from the west, the Nazis imploded the bridge in April 1945, a month before Germany capitulated in Berlin and Flensburg, respectively (please click on this link for more information on this topic). A temporary bridge was erected, which remained in service until this bridge was built. Today, this bridge serves as the key link between the city centers of Ulm and Neu Ulm, while at the same time, its historic significance fits in nicely with the surroundings of both cities: a 1949 bridge whose modernity fits the cityscape of Neu Ulm but its arch design fits  nicely with the old town of  Ulm itself. A nice compromise for a crossing like this one.

Neutorbrücke with the Ulm Minster Cathedral in the background
Neutorbrücke with the Ulm Minster Cathedral in the background

Neutorbrücke (EN: Neutor Bridge):

Location: Ulm-Treutchingen-Nuremberg Railline at Neutorstrasse NE of Ulm Hauptbahnhof (Railway Station)

Bridge type: Steel cantilever truss bridge with Warren truss features

Built: 1907 by Levi and Büttner as well as Machinefabrik Esslingen

The Neutor Bridge is the most ornamental of the bridges in Ulm. At over 120 meters long, the bridge’s main features are the towers, whose finials are covered with gold egg-like figures. The towers portals features the city’s shield with its black and white color. When taken from Kienlesbergstrasse, you can capture the bridge and the cathedral all in one, as long as the weather is cooperative.

A close-up of the tower's portals and finials.
A close-up of the tower’s portals and finials.

While designed by Levi and Büttner, the construction of the  bridge was done by the firm Maschinenbauwerk in Esslingen, a very popular steel fabricator of bridges and train locomotives until the late 1960s. The company was founded by Emil Kessler in 1846 and was solely responsible for the construction of railroad bridges, railroad tracks and train locomotives and coaches. Apart from this bridge, the company was responsible of the building of the Unterreichenbach Railroad Bridge in 1874 (today, the only example of a Schwedler truss bridge left), The Neckar River Steel Arch Bridge at Plochingen in 1949, and The Fehmarn Bridge in 1963. The company survived several takeovers and concourses during its 120+ year history before the company announced its cessation of production in 1966. Shortly thereafter, it was bought by Daimler-Benz.

Despite being used regularly and its thoroughly done maintenance, the bridge will receive another crossing only 200 meters to the west, which will provide a more direct connection between the city center and train station  to the southwest as well as the freeway Highway 10 to the west. While the design has been announced, construction has not started yet as of present. It does appear though that the bridge will be left in place as a secondary crossing going to the northeast once the new crossing is open by 2020.

Ludwig Erhard Bridge at Ulm Hauptbahnhof
Ludwig Erhard Bridge at Ulm Hauptbahnhof

Ludwig Erhard Bridge:

Location: Munich-Ulm-Stuttgart Railline at Ulm Hauptbahnhof (Railway Station)

Bridge type: Cable-stayed suspension bridge

Built: 2007 replacing the Blaubeurerbrücke

The Ludwig Erhard Bridge is the first bridge you will see when disembarking the train at the railway station. In the daytime, one can see the blue and grey colors of the tower and cables as it decorates the hillside in the background. At night, however, the colors change to yellow, for the towers are lit by sodium street lamps lining up the meridian and the inner portions of the towers, thus making photography an interesting adventure. The bridge replaces the Blaubeurer Bridge, a steel girder bridge from the 1950s that had corroded away thanks to the black smoke from the trains combined with heavy traffic. Yet this combination steel and concrete bridge improves a key link along Karlstrasse between the city center, Neutorbrücke, the railway station and the eastern suburbs on one end, and the freeway Highway 10 and parks to the west. All of the mentioned locations are centralized and easily accessible even by foot.

Bleicher Hag Bridge
Bleicher Hag Bridge

Bleicher Hag Bridge:

Location: Munich-Ulm-Stuttgart Railline and railroad yard at the junction of Am Bleicher Hag and Blaubeurerstrasse at Ulm-Lehrertal

Bridge type: Bedstead Pratt pony truss with riveted connections

Built: ca. 1920

The Bleicher Hag Bridge is the longest of the bedstead truss bridges that exist along the railroad lines serving Ulm, with five spans of 120 meters, totalling 600 meters. There is little information about the construction date of the bridge, let alone the bridge builder, yet given the popularity of the riveted truss bridges after the turn of the century and the effects of World War I, a date of 1920 best made sense to pinpoint. The caveat with this bridge is its narrowness- only 3 meters wide and with a weight limit of six tons.

U15aBut given the increasing demand of rail traffic and the improvement of vehicular traffic, chances are likely that this bridge may be replaced with a larger, more appealing structure in the next 10-15 years. But it depends on the availability of money and manpower to make it happen.

Lehrertal Overpass
Lehrertal Overpass

Lehrertal Railroad Overpass:

Location: Railroad line at Y-junction of Ulm-Treuchtingen-Nuremberg Line and Munich-Ulm-Stuttgart Line, north of Ulm Hauptbahnhof.

Bridge type: Bedstead subdivided Warren pony truss bridge with welded connections 

This bridge is hard to find, unless one wishes to walk across the Highway 10 bridge on the north side. Here is where one can get the best photo. The bridge is unique because of its curved spans as it crosses the rail lines going east past Ulm. Most likely this bridge is used for freight traffic not wishing to stop at Ulm Railway Station, located only 500 meters to the south. Like the Bleicher Hag Bridge, the Lehrertal Bridge has little information on its history but it appears that the bridge has been in service for 60+ years, namely because of its welded connections that had started becoming popular at that time. Yet more information is needed to confirm this.

Schieferhausbrücke
Schiefeshausbrücke

Schiefeshausbrücke:

Location: Grosses Blau Canal on a pedestrian path between Schwörthausgasse and Fischergasse

Bridge type: Brick arch bridge

There are many small crossings along the Blau Canal that compliment the Fachwerk houses in the Old Town. Yet this two-span arch bridge is the more popular of the crossings, and one of the more visible bridges to photograph. The bridge dates back to the 1700s and it is built using brick. No information on its length is given, but it is estimated to be 20 meters long and only three meters wide. The bridge is located only 15 meters behind Das Schiefe Haus, the oldest existing house remaining in Ulm that dates back to the 1500s and one whose name fits the description, as seen in the picture below:

Das Schiefes Haus with the bridge in the background.
Das Schiefe Haus with the bridge in the background.

The house is the only one of its kind in Germany with this unusual feature. It is a now a bed and breakfast, located right on the canal. Anybody care to eat or sleep at the water level? 😉

Weinhofbergbrücke
Weinhofbergbrücke

Weinhofbergbrücke:

Location: Grosse Blau Canal at Weinhofbergstrasse and Auf der Insel

Bridge type: Brick arch bridge

Located at the north tip of the island surrounded by the Blau Canal, this bridge is the lesser visible of the brick arch crossings because of the Fachwerkhäuser and vegetation interfering with the view. Nevertheless, the bridge fits nicely in the cityscape, providing access to some of the small shops in the Old Town. It is located behind one of the recently restored Fachwerk houses (the light brown colored one as seen in the picture) where a gallery and private residence occupies it. The bridge dates back to the 1700s but unlike the one at Schiefeshaus, this one carries automobile traffic but at a snail’s pace because of the high number of people soaking in the scenery of Ulm’s Old Town.

There are many more to see in Ulm, but these examples are the ones that should be visited first because of their historic and aesthetic appearance and how they fit the cityscape. Many of them are difficult to find and one will end up walking past them as they see the Fachwerk houses or even the other places of interest in the Old Town. But in case you stop at at least a couple of them to pay homage to them, you will have a chance to learn how oatingthey have played an integral part in the city’s development over the past three centuries. Unlike the ones in New Ulm in the US, where most of the crossings are now modern, these crossings are unique because of their history and design, even more so because of how thy fit Ulm’s cityscape, thus adding them to the storied list of places to see while in Ulm. Taking the line from Hans Scholl, one can sum up Ulm’s history as the following: Es lebe die Geschichte und Kulturerbe, in addition to his famous last words: “Es lebe die Freiheit.”

EN: Long live freedom, history and heritage.

bhc new logo jpegAuthor’s Note: This article is part of a series being done on the cities of Ulm/ Neu Ulm, Germany and the city of New Ulm written by sister column, The Flensburg Files. For more on this topic, click on the logo below for more details. The story behind Hans and Sophie Scholl can also be found there as well.

FF new logo 

Also: The Files has a Genre of the Week entitled “The Fire Within,” written by Sophie Scholl, which if clicked here, might be of interest to the reader. 🙂

2014 Ammann Awards: The Author Chooses the Best Bridge Stories

Bentonsport Bridge spanning the Des Moines River in Van Buren County, Iowa. Photo taken in December 2014

To start off the Author’s Choice Award version of the 2014 Ammann Awards, presented by the Bridgehunter’s Chronicles, I would like to present you with an overture which is in connection with this year’s theme: Bigger is not always better. Enjoy!

 

This year’s Author’s Choice Awards features some of the most interesting stories of how people have come together to save their valued work. However, we have a story of a bridge found underneath a pub, as well as a failed attempt to salvage a historic bridge, and a disaster caused by gravity. And finally stupidity at its finest- caught on tape and youtubed! So without further ado, here are my pics for 2014:

Most Spectacular Disaster:

USA:

Ledbetter Bridge in Kentucky- Spanning the Tennessee River, this 1931 three-span polygonal Warren through truss bridge was one of the latter works of architectural art built by Polish engineer, Ralph Modjeski (1861-1940). The bridge no longer exists as it was removed last month, several weeks after a replacement span 700 feet downstream opened to traffic, but one cannot help but watch sections of the bridge collapse on its own, as seen in the photo gallery here.  After reporting one of the approach spans dropping by two feet in 24 hours, officials fenced off the entire bridge, only to later watch sections of it fall on the shoreline. Cause: Erosion undermining the piers, plus some vultures perching on the railings of the affected spans, as the photographer stated.

International: 

Cherryvale Bridge in New Brunswick, Canada- Covered bridges have been especially hardest hit this year, as fire, oversized trucks and natural disasters have damaged or destroyed over three dozen bridges in North America and elsewhere. The Cherryvale Bridge in the province of New Brunswick was one of those unfortunate victims, as floodwaters knocked the 1870s wooden structure off its foundations in May, and the structure flowed downstream before being smashed against a concrete bridge carrying a highway. More on this story hereAs beloved as they are, covered bridges are usually rebuilt by demand from residents. This is the case as well, but will it happen with this bridge? We’ll have to see….

 

Best Historic Bridge Find:

USA: 

Rocky Balboa Railroad Bridge in Durham, North Carolina- This railroad underpass, featuring a 100-year old deck plate girder span, may be a typical bridge accomodating rail traffic. But (and the music from Rocky Balboa will support this), it has had a record of annihilating semi trucks and trailers, as well as tractors, busses, and other overweight vehicles. This DESPITE having every form of warning system and sign in place. Here’s a video to prove it:

 

International:

The Parade Bridge in Norwood (South) Australia- Australia has a wide variety of metal, concrete and wooden bridges dating back to the early 1800s. This bridge, located underneath a pub, was found by chance by the owner as the venue was undergoing extensive renovations. Made of parapet and cobblestone and built in the 1850s, this bridge has a unique history, which can be found here.

Honorable mentioned: The Kersten Miles Bridge in Hamburg, Germany- Built in 1897 and named after the mayor of Hamburg during the Medieval times, this arch bridge is one of the darlings of Hamburg one needs to see, if one wants to know which of the 2,500+ bridges should be visited in the second largest city in Germany. Apart from its ornamental appearance and the fact that the bridge is made of brick, a recent discovery of a pflaster mosaic underneath one of the spans is another reason to visit this unique landmark. More on this discovery can be found here.

Best Way to Salvage a Historic Bridge: USA:

San Francisco-Oakland Bay Bridge East Span- The 1936 eastern half, consisting of cantilever truss spans, was replaced with a cable-stayed span with concrete girders last year and is still being dismantled even as we speak. Yet one person is looking at salvaging parts of the bridge for sustainable housing developments. Although it would look unusual to today’s housing standards, as seen in the article here, it would at least preserve the legacy of the eastern half of the bridge, which partially collapsed in the earthquake in 1989.

Also worth mentioning: Devil’s Elbow Bridge in Pukaski County, Missouri- The Freedom Prime Bridge and this bridge were two of the candidates considered for the author’s choice awards. Yet while Freedom received some accoldaes for best preservation example, this 1923 two-span Parker truss bridge got this one for two reasons: 1. The bridge was part of the Mother Road (Route 66) and because of the importance of the crossings along the highway that had once connected Chicago and Los Angeles, efforts are being undertaken to save what is left of this historic highway. 2. The bridge underwent an extensive renovation, which included new decking, sandblasting and repainting the trusses and making the bridge look just like it was when opened 91 years ago. The bridge should set an example for a pair of other crossings that have recently been rendered unsafe and whose futures are in doubt. More here

International: Katzenbuckel Bridge in Ebenhausen, Bavaria (Germany)- Spanning a rail line near Augsburg in Bavaria, this arch bridge was in the way of progress, for the German Railways want to expand the line and electrify it. The solution: Instead of razing the structure because of its historic significance, the plan is to raise the bridge to better accomodate traffic. Impressive but also one that will have other regions with similar bridges to consider this option, for there are enough candidates to go around. More on the plan can be found here.

Photo taken by James Baughn

 

 

 

 

 

 

 

 

 

Worst Example of Restoring/Using a Historic Bridge

USA:  Blue River US 40 Bridge in Kansas City, Missouri- Preservationists and locals are scratching their heads about this 1931 bridge, a steel through arch bridge that is the product of a pair of local bridge builders. The bridge was dismantled to make way for its replacement in August, but in a way that the parts were cut apart and left in a pile, waiting to be taken to its new home in Grandview. Photos of the bridge before and after its dismantling can be found here. Given the “logic” behind this process, the first and foremost question that comes to mind is: How are you going to put the structure back together again without altering its historic integrity? Or are you going to scrap it? My prediction: Its induction into Nathan Holth’s Wall of Shame.

International: Kramer Bridge in Erfurt, Germany- This bridge in the news but in a negative sense. The face of Thuringia’s capital was the focus of a drug operation, used in the German mystery series, Tatort (Scene of the Crime). The episode was aired in December and drew fire from viewers who deemed both the usage and the content to be inappropriate. Shortly after the release, two of the three actors resigned and the German channel MDR decided to scrap the Erfurt series. Lessons on how Tatort should be produced and how places of interest should be used without degrading it should be given by those who have been with the series for over 2 out of the four decades of its existence on German TV, including the likes of Ulike Folkerts, Axel Prahl and Jan Josef Lieffers, who play investigators for their cities (Ludwigshafen and Muenster, respectively.)

 

Biggest Bonehead Story We had a lot of candidates for this category, many of whom just could not learn to shorten the height of and/or lighten the weight of the load. The end result: covered bridges losing their tops and other bridges dropping to the ravine with their load on it. Yet only two examples really standout and should serve as a signal to truck drivers to NOT rely solely on GPS and assumptions, but to obey the traffic signs, or face liabiity.

Pollock’s Mill Bridge in Jefferson, Pennsylvania- Spanning Ten Mile Creek near Jefferson, this single span Whipple through truss bridge, built in 1878 by the Massilon Bridge Company in Ohio is one of the last remaining iron bridges in western Pennsylvania. Yet it almost became a hunk of twisted metal after a tanker truck tried crossing the structure, only to fall partially through the decking. To make matters worse, the driver dumped liquid contents into the stream to lighten the load and keep it from collapsing. A double-environmental catastrophe. Yet with two trucks following him, he should have known better than to first drive through the height restricted underpass located just a half mile before the bridge and then try crossing this bridge, right? Leadership prevents stupid things from happening. Fortunately, the bridge will be repaired and nothing was severely adversed in the water. However, as the article stated here, it could have been worse…..

Watford Bridge in North Dakota- Spanning the Little Missouri River at US Hwy. 85, this Warren through truss with V-laced portal bracings has dealt with a lot in the 55 years in service, especially as it is located near the Bakken Oil Fields. This includes oversized vehicles crossing it and damaging the overhead bracing. Sometimes stupidity is best shown on video, and the truck driver probably did not realized how much of an idiot he was for ignoring the height restrictions until watching the amateur video taken by another truck driver and his passenger, who  spiced it up with some commentary (Note- some comments may not be suitable for children under 13.)

 

This sums up my picks for 2014. As you can see, we had some interesting stories, all caught on photos and film in hopes that drivers pay attention to their load when using the bridges. Because even the most modern bridges can only take so much. Take this advice in mind: Less is Always More, regardless of the gas price.  After watching the videos and reading the articles pertaining to the bridge picks, have a look at the winners of the 2014 Ammann Awards coming up in the next article…..

 

Beaver destroys historic bridge in Bavaria

KUTZENHAUSEN-BUCH/ AUGSBURG- The Rothbrücke, located in the district of Augsburg in the community of Kutzenhausen has been in the news recently because of a rather interesting story that is making residents and Bavarians scratch their heads as to how this could happen. The 40-50 foot long beam bridge with concrete decking that spans a small creek has come under attack from an unlikely source, and it has caused the mayor to pursue measures to demolish and replace the bridge with haste. Beavers have been busy taking the bridge apart, piece by piece, where they have undermined the bridge’s abutments and wingwalls by digging several holes behind it, as well as along the shoreline surrounding it. The abutment supports the decking of the bridge, whereas the wingwalls allows water to flow freely under the bridge and keep the dirt back. The end result of the beaver’s work has been the area having several holes and tunnels at and behind the abutments, making it look like Swiss cheese, according to reports by the newspaper, Augsburger Allgemeine. The problem was first discovered in 2010, resulting in the weight limit of 3.5 tones being imposed on the bridge. But it was not enough for the beavers to widen their tunnel network and bring the bridge to a point of collapse. According to the mayor, Rupert Kugelbrey, the abutments are so undermined that the bridge could collapse at any moment.  While the bridge has been closed off to all traffic including pedestrians since the end of February of this year, plans are now in the making to remove the bridge at the earliest possible convenience for safety reasons. Whether there will be a replacement for the 40+ year old bridge to follow remains open. But it has provided locals and pontists with some humor, as the beaver is being talked about among the social network community. And it is no wonder, for beavers have a potential to bring down trees and dam up streams, causing flooding. That they have the potential to destroy bridges by undermining important parts is something that is going to have engineers look at other ways to keep wild animals from destroying other bridges, regardless of age and materials used.  For this beaver, it will have to find other bridges to undermine, once the Rothbrücke is removed, but not before receiving the Chronicles’ Author’s Choice Awards in the process, which will be presented next year.

Respect. 🙂

More on the bridge can be found here. A photo of the bridge and the damage done by the beaver can be found here.

 

Flood Aftermath in Europe

All photos courtesy of the City of Linz

Produced together with sister column: The Flensburg Files

Clean-up of flooded areas underway. Several small crossings destroyed by flooding, mostly concrete beam bridges. Others doomed due to damage. Linz Railroad Bridge spared flooding and near ship mishap but fate sealed?

Four weeks where fields became lakes, towns became small Italian villages, and farmers and merchants became gondola drivers and boaters. That is the signature of the Great Flood of 2013 in central Europe.  Heavy rainfall caused several major rivers in Germany, Austria, Czech Republic, Hungary and other countries to flood their banks, setting new records, destroying livelihoods and causing damages that are exorbitant financially and in a literal sense. In Germany alone, 10 out of 16 states were declared disaster areas, with the hardest hit areas being in Bavaria, Saxony, Saxony-Anhalt and Lower Saxony. Cities, like Passau, Halle (Saale), Magdeburg and Luneberg broke 400-500 year old records with much of the city being under water.

But surprisingly according to newspaper reports, unlike the Great Flood of 2002, damages to the bridges in Europe were minimal. While many smaller bridges were destroyed because of flash floods, the major bridges along the Saale, Elbe, Danube and Rhine Rivers (among them) sustained little to moderate damage. This is a stark contrast to what happened in 2002, where many major crossings were damaged to a point where demolition and replacement were warranted. This included the Pöppelmann Bridge in Grimma (Saxony), a 1719 stone arch bridge that was undermined in the 2002 flooding and had to be rebuilt. While Grimma was flooded out again this time around, the bridge survived the flood thanks in part to the main span allowing water to pass through.

Old Magdeburg Railroad Bridge spanning the Elbe- Photo taken in February 2011

But it does not mean that the bridges that survived the floods and mudslides are safe. Many bridges are being inspected to ensure they are safe for travelling. This includes the Elbe River crossings between Magdeburg and Lauenburg, where the Elbe put hundreds of miles of highways and rail lines underwater together with the bridges. While bridges like the historic Anna Ebert Bridge in Magdeburg are being inspected for structural concerns to determine whether street cars can use it again, it is possible that an even bigger solution to the flooding problem will come at the expense of these crossings as many local and state government officials are looking at all options possible to ensure that the next round of floodwaters stay in the rivers and not flood the banks. This includes raising some bridges and rebuilding and removing those that are hindering the flow of water. This puts such crossings like this and  the old railroad bridge over the Old Elbe River located downstream from the Anna Ebert Bridge, at risk. A link to the bridges of Magdeburg is here if you wish to look at the city’s bridges and their history.

Anne Ebert Bridge- Photo taken in February 2011

One of the interesting facts about this round of floods is the fact that not only the small river crossings were undermined and destroyed by flood waters, but the majority of the bridges destroyed in the floods were concrete beam bridges built between the 1980s and 2000s. This is unusual given the fact that beam bridges were built to allow river currents to flow over and underneath the structure. But as you can see in a video of a beam bridge being washed away in Poland two weeks prior to the Great Flood, if the river current is strong enough, it can cause the span to sag and eventually break it apart and wash it away. You can see the full video here. This was exactly what happened to the bridges in eastern Thuringia and western Saxony in the area of Zwickau and Chemnitz, as these crossings were either wiped out or damaged to a point where replacement is now a necessity. Even if beam bridges are made of wood and steel, many of them crossing these small streams were wiped out or barely survived but are not stable enough to be repaired. This will most likely lead to the question of which other bridge types to be used when these structures are being replaced, for many arch, suspension, cable-stayed and truss bridges survived the onslaught of flood waters with little or no damage. Interestingly enough, these types are being used more extensively for bridge construction here in Europe than beam bridges, which should put other countries (like the US and Canada), their agencies, politicians and bridge builders on notice regarding bridges to be used not only to accommodate traffic across ravines but also be structurally sound against such natural disasters.

To close this series on bridge disasters and the Great Flood of 2013, there are a couple interesting bridge stories to mention that provide some lessons in dollars and sense. One deals with preventive measures to keep a temporary bridge from being washed away at the cost of many thousands of Euros. Another bridge survived a near boat mishap, to the dismay of the majority of the community the bridge is located, for the 110-year old structure is due for replacement but is protected by federal preservation laws, which officials are pursuing to have this protection revoke to allow for the bridge replacement to proceed.  Here are the details:

Flood destroys new bridge abutments and temporary bridge in Zschopau, Saxony:

Many small bridges along this small river in western Saxony were severely damaged or destroyed during the floods. This bridge is one of them. Located along the Zschopau River in the town bearing the river’s name, near Chemitz, the Bailey pony truss bridge was supposed to serve as a temporary crossing as a new bridge was being built replacing a two-span brick arch bridge. Yet misunderstanding plus political inaction and rushing water doomed the temporary bridge as the floods not only destroyed the bridge, but also the abutments of the new bridge being built. This created a stir among residents who were against the construction of a new bridge and had pushed to temporarily remove the Bailey truss from the river, both unfortunately to no avail. The bridge has long since been fished out of the river, and a new temporary bridge is planned at the moment, but at costs that would have been avoided had action been taken earlier.  As for the new bridge, it is unknown when it will be completed for construction crews will have to build a new bridge completely from scratch, even revising their plans to ensure that the structure will survive such onslaughts as this one. An article on the bridge can be found here.

Linz Railroad Bridge survives flood and close call:

Never has there been such discontent towards a bridge as the city of Linz in Austria. As reported last year, the three-span through truss bridge spanning the Danube River has been targeted for demolition and replacement by politicians and the majority of the community, even after a pair of reports indicated that half of the bridge cannot be restored. Yet this 1903 structure has been protected by the Austrian Heritage Laws because of its historic significance to the region and its rare truss type that was used in bridge construction in Austria. This bridge survived a close call as a small ship traveling along the high flowing Danube River almost rammed into the bridge. However, this was not before having to evacuate 120 Swiss tourists ashore prior to its passage. The ship barely made it across the rising river. A few more centimeters and a collision with the truss bridge would have been likely, causing damage to both the boat and the structure. An article on this incident can be found here.  While many were wishing that the accident would have happened and the bridge would have either collapsed or been damaged to a point of irreparably, government officials, which includes the city council, the mayor of Linz and the railroad company that runs trains across the bridge have filed a petition to the Austrian Heritage Office in Vienna to have its historic status revoked, so that the replacement of the bridge could proceed at the earliest in 2014. While the decision was expected last month, there is still no word on whether this waiver will be granted. If the request is denied, the city and the railroad will be forced to consider alternatives, which includes rehabilitating the entire structure. This will take twice as long as the two years needed to replace the bridge. More information on this bridge can be found through the OÖ Nachricht here as well as through the Chronicles, here, which will keep you posted on the latest on this bridge. An organization aimed to save the bridge has been created. You can find them by clicking on here.

Our last part of the Flood Series focuses on Canada and its acute flooding situation which has ripped railroads out of their beds and dropped many important crossings into the water, including the ones in the Provinces of Alberta and Saskatchewan. Stay tuned!

You can view the highlights of the Great Flood of 2013 in Europe through sister column the Flensburg Files, which you can click on here.