Knightstown, IN

US 40 Bridge Replacement

HWC completed the design of the US 40 HMA overlay in Knightstown and the adjacent replacement bridge over the Big Blue River for bidding in 2021. As part of the overlay in Knightstown, over 50 curb ramps were upgraded to ADA standards, requiring detailed pedestrian detour routes for each intersection as part of the MOT. HWC conducted extensive coordination with INDOT and design partners to include four Traffic Signal Modernizations, replacing traffic signals, pedestrian push buttons, and a comprehensive pavement rehabilitation through the urban area of Knightstown, Indiana. The pavement design of US 40 required implementation of full-depth HMA pavement, HMA patching, PCCP approaches, and sections of 4” HMA overlay. The MOT and roadway design were completed in concert with the significant impacts of replacement of the Big Blue River Bridge. The proposed bridge is 65’ wide and 245’ long and provides access to four traffic lanes and sidewalks on both sides. The new bridge raised the roadway profile grade 1’ to provide the necessary hydraulic opening to convey Q100 of the Big Blue River, as debris was impacting the existing bridge. The construction of the project was phased to maintain one lane of traffic in each direction for US 40 because US 40 serves as the emergency route for I-70. The southern sidewalk was constructed in a third phase of construction so the sidewalk area could be utilized for MOT during Phase 1 construction to save close to 10’ in unnecessary bridge width. The construction cost for the bundled overlay and bridge was $9,170,000.