St. Louis County Department Of Transportation

Buyer seeks engineering services for replacement of Mason Lane Bridge No. 305 over Grand Glaize Creek. The project involves removing an existing single span steel girder bridge located approximately 0.30 miles south of Manchester Road. Buyer will handle topographic surveying, property acquisition, and construction engineering while consultant will provide design services. The bridge will likely be closed to through traffic during construction.

• 4/23/2025 - Proposal Due Date

• Ability to prepare plans natively in Microstation
• Experience with similar bridge projects
• Ability to submit initial fee proposal within 2 weeks of scoping meeting
• E-Verify Memorandum of Understanding compliance

• Bridge replacement over Grand Glaize Creek
• Hydraulics and FEMA No-Rise Certification
• Geotechnical analysis and design
• Structural analysis and design
• Load rating/load posting determination
• Coordination with Metropolitan St. Louis Sewer District
• Obtain floodplain permit
• Utility coordination
• Drainage structure design if necessary
• Subsurface utility investigation if necessary
• Retaining wall design if necessary
• Preliminary and final plans development
• Job special provisions
• Construction estimates
• Guardrail layout/design if necessary
• Construction support through RFIs