LA-10 Beaver Creek Bridge

SDR was tasked with emergency design for the replacement of a three-span prestressed concrete bridge that experienced irreparable damage due to flooding. The scope of the LA 10 over Beaver Creek bridge project, designed in just under two months, included finalized plans, cost estimation, surveying, load rating, and the submittal of comprehensive calculations books. The urgency of the project to restore the viability of the LA 10 corridor was met with sound engineering design and was submitted in a timely manner by the SDR team.

The newly-designed bridge has a total length of 200 ft. and a clear roadway width of 40 ft., an increase in width from the pre-existing bridge. The superstructure consists of six 36 in. deep Louisiana I-shaped girders (LG-36), acting in composite action with the 8.5 in. continuous concrete deck. The substructure consists of cast-in-place concrete caps and precast concrete piles. The bridge has an expected 40-plus-year lifespan to service the St. Helena Parish of Louisiana.