East Broadway (Missouri Route WW) is a two-lane arterial carrying in excess of 20,000 vehicles per day between U.S. Route 63 and Business Route 63 in eastern Columbia, Mo. Heavy peak-period conflicting turning movements at main access points to residential communities on the south side and commercial development on the north side degrade traffic operations and significantly compromise safety.
The Missouri Department of Transportation (MoDOT) developed a basic concept plan for widening the ¾-mile roadway, which included a relocated intersection and traffic signal to improve spacing between a major intersection and the U.S. Route 63 ramp terminal intersection at the east end of the project. The project also includes the reconstruction of a new 230-foot long bridge over Hinkson Creek. The original conceptual plan provided the basis of a city/state relinquishment agreement with provisions for the city to take responsibility for all future maintenance in return for MoDOT providing full funding for the construction.
The city of Columbia retained the services of Burns & McDonnell to refine the conceptual plan and prepare final construction documents for the widening project. The refined plan included provisions for additional access management by deployment of a raised median along much of the widened roadway, providing ancillary opportunities for streetscaping and other beautification features. Access provisions were coordinated closely with existing and planned commercial development, which included independent traffic studies to ascertain intersection capacity and signal phasing under current and future build-out conditions. The design also incorporated the city’s bike and pedestrian walkway plans along East Broadway and the Hominy Branch and Hinkson Creek Greenbelts.
Burns & McDonnell also prepared and conducted a public meeting to solicit input from all affected stakeholders along the corridor before completing the conceptual plan.
- Urban highway design
- Traffic signal design
- Bridge design
- Traffic analysis
- Public involvement