- U.S. Route 36
U.S. 36 is a primary highway serving the heaviest east-west travel demands across the state of Missouri north of Interstate I-70. Prioritized as one of the state's most important travel corridors, it is planned to be upgraded to interstate status as I-72.
Burns & McDonnell was responsible for the design of widening and improvements from the Livingston County line to the U.S. 65 interchange in Chillicothe, Mo. Initial construction will improve the existing highway to a four-lane divided expressway with outer roadways and at-grade crossovers at the county road intersections. Long-range planning for the project includes three diamond interchanges to accommodate access upon ultimate upgrade of the facility to interstate status. The interchanges were designed to the detailed extent required to prepare right-of-way plans for property acquisition for the future interchanges and outer road construction.
The eastern five-mile segment of the project crosses the Grand River floodplain and involved a detailed hydrologic and hydraulic analysis of the Grand River to establish current baseline conditions and to determine ultimate roadway grades and optimum bridge opening lengths to pass design floods under current interstate highway criteria. The results of the analysis provided a preliminary design that was further refined and implemented into final construction of the project.
The Grand River bottoms segment required approximately 1 million cubic yards of fill material to construct the parallel lane pair. The fill was secured from an existing 250-acre levee-protected floodplain tract adjacent to the south side of the highway. Grading and revegetation of the site was strategically planned and designed to mitigate projected wetlands impacts with potential bank mitigation capacity for other future projects in the watershed.
Plans were prepared in metric units format and were broken into several construction contracts. The initial segment of the project includes grading, drainage and surfacing for the western 9.850 km (6.1 miles) starting at the Livingston County line. Final plans for this segment were completed on an abbreviated schedule to secure special project funding appropriations. The eastern segment was packaged into two sequential construction contracts: grading, bridges and wetlands mitigation; and a separate surfacing contract.
- Roadway design
- Bridge design
- Roadway lighting
- Traffic control
- Right-of-way descriptions