2017 Ammann Award Results: Part 1

Rock Island Rail-to-Trail Bridge in Little Rock, AR at night. Photo taken by Chauncy Neuman, winner of this year’s Best Photo Award

New Olympic-Style Medal System to the Top Six Finishers

Record Number of Voter Participation

SCHNEEBERG (SAXONY), GERMANY- 2018 is here, and with it, the revealing of the winners of the 2017 Othmar H. Ammann Awards. This year’s awards ceremony is far different than in years’ past. For instance, instead of announcing the winners in nummerical order from top to bottom, the top six winners receive a medal in a combination of Olympics and Ore Mountain form. That means the top three finishers receive the typical Olympic medals, whereas 4th to 6th place finishers receive medals typical of the Ore Mountain region in Saxony in eastern Germany, the new home for this column (specifically, in Schneeberg). That means tourquoise, copper and iron ore to those respective finishers. To view the total number of candidates please click here for details, including how they finished.

This year’s awards set some impressive records that can only be bested by more participation and more awareness of the historic bridges that we have left in general. For instance, we had records smashed for the highest number of voter turnout in each of the nine categories. Furthermore, there were at least seven lead changes in each category, which was also a first. In four of the categories, there were lead changes with at least four of the candidates. In another category, each of the candidates took a shot at first place and stayed at the top for at least a week before it was dethroned in favor of another one. In summary, no leader was safe regardless of margin that was built with its second place competitor. 🙂

And with that we will take a look at the winners of the 2017 Ammann Awards, divided up into two parts so that the readers are not overwhelmed with the content. The winners of the 2017 Author’s Choice, where the author himself picks his favorites, will follow. But for now, let’s see what the voters have chosen for bridge favorites beginning with…..

 

BEST PHOTO:

This year’s Best Photo Category brought in not only double the number of candidates as last year (12 entries) but also double as many candidates that vied for first place as last year- there was a battle among three candidates for the top spot for the 2016 Awards. All six candidates finished in the top six with Chauncy Neumann bringing home the gold for his night photo of the Rock Island Railroad Bridge in Little Rock, AR., a fine example of a rail-to-trail crossing that still has its use in its second life today. His photo can be seen in the Chronicles’ facebook page as well as an avatar for the Chronicles’ twitter page. The silver medal went to Esko Räntilla for his stone arch bridge, built in the 1700s spanning a small creek in Finnland. That photo can be seen in the Chronicles’ wordpress page. Third place finisher receiving the bronze was Kevin Skow for his shot of the pony truss bridge Mill Creek in Kansas. His photo can be seen on the Chronicles’ twitter page. All of them will remain to be seen until mid-July before they become part of the header rotating page for the Chronicles’ wordpress page. The rest of the results:

Draschwitz Bridge north of Zeitz in the German state of Saxony-Anhalt: Winner of the Best Kept Secret International Award

BEST KEPT SECRET INDIVIDUAL BRIDGE:

This category is divided up into American and International Bridges and focuses on historic and unique bridges that receive little to no attention compared to other historic bridges, like the Golden Gate and Brooklyn Bridges in the States. In the international part of the category, we had 14 entries from three continents with four vying for the top spot. In the end, the winner of award goes to a small village north of Zeitz in Germany and this unusual bridge, the Draschwitz Truss Bridge over the White Elster River. This bridge is unique because of its v-laced top chord. The story behind it can be found here. Silver goes to the suspension bridge at Betsiboka in Madagascar, whereas Bronze goes to another unique arch bridge in Greece nominated by Inge Kanakaris-Wirtl, the Plakidas Bridge. The rest of the top six include:

Sarto Bridge in Louisiana. Photo taken by Cliff Darby

In the States, we had ten entries, featuring bridges from all over the country. This included a “dead bridge”- one that has been extant for many years, yet one decided to nominate it post humously. As in the international portion, four of the ten vied for the top spot, but in the end, the Sarto Bridge, spanning the Bayou des Glaises at Big BendAvoyelles Parish, Louisiana came out the winner by a slim margin, outlasting the Johnson Bridge in Stillwater County (Montana) by five votes. That “dead bridge” mentioned earlier, was Sugar Island Bridge in Kankakee Illinois, came in third with 88 votes- a bronze medal well earned a century after it was converted into a pile of scrap metal. The bridge was destroyed by a tornado in 1916 and was replaced afterwards.  The rest of the top six include:

Geneva Creek Bridge in Muscatine, Iowa. Winner of the Mystery Bridge Award. Photo taken by Luke Harden

 

MYSTERY BRIDGE:

Twelve bridges were entered in this category, of which three came from the States and the rest from Germany. Still, the winners of both the international and American competition were clearly decisive with the American bridge winning the all around by a wide margin. That was with the Geneva Creek Bridge in Muscatine, Iowa, a Bedstead Howe pony truss that features two spans and was relocated at an unknown time. Information on that is enclosed here. The ancient arch bridge in Erfurt won the international division but came in second in the all around. That bridge spans a small waterfall that empties into the Diversion Channel on the south end of the city in Thuringia. It may be the oldest extant structure in the city’s history. For more, click here. Not far behind was another competitor from the German state of Schleswig-Holstein, a thatched-roof covered truss bridge in St. Peter-Ording, whose unique story can be found here. The rest of the standings include:

The rest of the winners can be found in Part 2. Click here to get there. 🙂

Ancient Arch Bridge at Pförtchen Bridge in Erfurt. Winner of the Ammann Awards for Mystery Bridge International

 

 

 

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

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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.

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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.

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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.

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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.

 

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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.

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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.

 

 

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