U.S. 69 Missouri River Bridge Replacement

Our team assisted the Missouri Department of Transportation (MoDOT), the Kansas Department of Transportation (KDOT) and the Federal Highway Administration (FHWA) with study alternatives to improve the transportation infrastructure at this major crossing over the Missouri River.

We developed alternatives to address the deteriorating conditions of the two existing bridges — the Fairfax Bridge, completed in 1935, and the Platte Purchase Bridge, completed in 1957 — as well as travel access and economic needs within Wyandotte County in Kansas and Platte County in Missouri.

The study began as an Environmental Impact Statement (EIS) because of the potential controversy of one of the alternatives under consideration. Upon the determination of reasonable alternatives and in consideration of input from stakeholders, the team reclassified the study as an Environmental Assessment (EA) and accelerated the schedule due to the anticipated issuance of the Decision Document by FHWA.


Missouri Department of Transportation


Riverside, Missouri, and Fairfax, Kansas




Government, Military & Municipal


Our team conducted a location and bridge study and completed the EA for the replacement of the two National Register of Historic Places-eligible Warren through-truss bridges with a single four-lane bridge. We prepared the EA in close coordination with MoDOT, the U.S. Army Corps of Engineers and the U.S. Coast Guard. We also completed a Nationwide Programmatic Section 4(f) Evaluation and Memorandum of Understanding for removal of the two historic bridges.