Prefabricated Modular Steel Bridging from Acrow Bridge Provides Temporary Access in Lusk, Wyoming Reusable steel system allows for rapid replacement of structure In late June 2015, an overpass on U.S. Route 85 in Lusk, Wyoming collapsed onto railroad tracks as a result of heavy rains and flooding of the nearby Niobrara River. The collapse created an immediate stop to the passage of daily Union Pacific Railroad freight trains, up to 12 coal trains per day, as well as vehicular traffic on Route 85. The US 85 overpass was an elevated structure using an MSE TYPE design where layers of earth and a Geotextile material are combined to build the ramps with Concrete fascia walls. The deluge of water from the rains cut out the bottom of the MSE wall structures on either side of the stru

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