 There were two Missouri River crossings in the project area, the Plattsmouth Bridge and the Bellevue Bridge, which carried Nebraska Highway 370 (N-370) and Iowa 370, that required traffic to pass through populated areas in order to move from US 75 to I-29.Neither the Plattsmouth Bridge nor the Bellevue Bridge at wide, respectively, met the functional requirements of traffic projections for the year 2030.Both the Iowa DOT and NDOR had plans to replace one of the two bridges, but a change in funding forced the agencies to combine resources to build one new bridge.