Rig Downs Historic Highway Bridge in Arkansas

Photo taken by Wayne Kizziar in 2011

Semi-truck with skidder brings down 1920s through truss bridge that used to serve three major highways, no one injured.

POTTER, ARKANSAS- Careless and ignorance seems to be the major theme involving historic bridges in the United States and elsewhere, as drivers of large heavy trucks have been illusive in ignoring the restrictions involving crossing a light weight bridge and have taken the chance, even if it meant paying the price for their ignorance.

After the Christmas Day disaster in Paoli, another bridge of similar type has fallen victim to an overwiszed and overweight truck in near Potter in western Arkansas. Police officials are investigating the reasons why the driver of a semi truck with a trailer loaded with a skidder, ignored the weight limit of the Two Mile Creek Bridge and tried crossing the bridge only to drop the 1920 structure into the water. The incident happened on Friday. According to officials, the Pratt through truss bridge with A-frame portal bracings, Howe lattice strut bracings and riveted connections, had a weight limit of 6 tons, while the truck’s weight limit was four times the weight limit. The bridge used to carry three different state highways before the county took ownership. The crossing carried US Highways 71 and 59 as well as State Highway 375 before they were relocated on a new (and straighter) alignment. Prior to its collapse, it carried county highway 37.  Its truss design, a riveted Pratt through truss was constructed using standardized truss designs to accomodate the load. Unfortunately, it is unknown who the bridge builder of the 100-foot long crossing was.

It was just unfortunate that the bridge could not accomodate a truckload that was four times its weight limit, as it was seen in the picture below. Considered a total loss, the crossing was the last of the through truss bridges in Polk County. Compounding it with the most recent flooding, the bridge is the second one in a month that became victim. A two-span pony truss bridge was severely damaged by flooding on Christmas Day and its fate is uncertain. As for the driver, charges are pending for wreckless driving and disobeying the weight limit sign. More information will follow.

Side view of the bridge collapse with the rig on there. Photo courtesy of Jeremy Lance
Side view of the bridge collapse with the rig on there. Photo courtesy of Jeremy Lance

REMINDER: Today is the last day to enter your photos, bridges, etc. for the 2015 Ammann Awards. Entries will be taken until 12:00am Central Standard Time. The Voting process will start the following day, which will be posted in the Chrinicles. Get your entries in before it’s too late!!!

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