Bert Kouns Overpass
Caddo Parrish, Louisiana
NDM provided structural design services for the partial replacement of a damaged steel tub girder to be sectioned and removed using hydroblasting. NDM performed an analysis on the stress reactions of the bridge due to partial removal of a span, including the rebound effects, prior to replacement. In addition, construction plans were developed for the phasing and removal of the girder. Self-propelled modular transporters (SPMTs) were utilized to move the damaged section.