- Scott Boulevard Improvements
Scott Boulevard is an urban arterial in the rapidly growing west side of Columbia, Missouri. Our team provided a concept study, permitting and final design services for a 3-mile segment of the roadway. The northern 2 miles of the roadway consisted primarily of a two-lane section with little to no shoulder and ditch sections providing drainage. The southern 1-mile section was a similar two-lane configuration, but with shoulders along a portion of the roadway that were a result of an intersection improvement with Vawter School Road and a four-span bridge over Hinkson Creek. The city wanted to upgrade the road to improve the safety, accommodate growing traffic demand and eliminate flooding hazards at Hinkson Creek.
The concept study ultimately recommended a four-lane divided section with raised median, curb and gutter, and an enclosed storm sewer system throughout the northern 2-mile length of the project. The southern end of the project experiences less traffic and a three-lane section was adopted. The northern 1 mile was offset from the current alignment and the existing roadway used to serve the many access points. The middle section, approximately 1 mile, is heavily developed on both sides of the roadway with limited right-of-way and was reconstructed on the existing alignment. Reconstruction of the final mile included widening and replacing a poorly functioning “T” intersection at Vawter School Road with a roundabout. Lastly, the bridge over Hinkson Creek was replaced with a longer, higher bridge to improve flood protection.
The final design presented many challenges, including multiple retaining walls, several large box culverts, a major signalized intersection at Chapel Hill Road, bike/pedestrian facilities throughout the roadway corridor, wetland mitigation conservation easements, and utility corridors extending the length of the project. Construction staging, particularly for the middle mile of the 3-mile project, required several traffic shifts to maintain traffic while the roadway grade was raised to allow for drainage structures and box culverts to be constructed.
- Conceptual plans
- Construction staging
- Roadway design
- Bridge design
- Intersection design
- Environmental permitting
- Utility planning and coordination
- Maintenance of traffic