Allen Bridge 

Client: Lemhi County Road & Bridge (2016)

HMH Engineering provided the project inspection for this bridge replacement project in Salmon Idaho. Construction was completed on a compressed schedule to reduce the impact to the local residents as the bridge was closed entirely. HMH coordinated with the local community to provide project updates and look ahead schedules. 

Bridge construction included driven pile, precast concrete girders, removal of existing bridge, and large riprap slope protection. Removal and construction occurred over the protected waters of the Lemhi River which is home to native salmon and steelhead.  A concerted effort and attention was paid to the environmental commitments of the project with no violations occurring. 

 This Project Included:
⦁    Demolition of an existing bridge with a strict in-water timeline and Environmental commitments for fish habitat
⦁    Installation of driven pile
⦁    Compressed schedule and early delivery of project
      Substantial public involvement and coordination