As the owner’s engineer for the project, our experience on 15 major river crossings and previous work on the U.S. 69 Missouri River Bridge for MoDOT added considerable value to the development of proposal documents, agency coordination, and design and constructability reviews.
The procurement phase included site survey, right-of-way investigation, deep foundation geotechnical borings, hydraulic and scour studies, U.S. Army Corps of Engineers (USACE) Section 404 and 408 permit coordination, vessel collision analysis, preliminary bridge layouts, structure types, cost estimates, and RFQ and RFP document development. The design phase included plan reviews for conformance to AASHTO and MoDOT/IDOT design guidelines and contract requirements, and environmental compliance reviews. The construction phase includes oversight and constructability reviews of plans, review of requests for information, field design changes, and nonconformance reports and repairs.
All phases have required close coordination with numerous stakeholders, including IDOT; Sny Island Levee Drainage District; USACE St. Louis and Rock Island districts; U.S. Coast Guard; Illinois Department of Natural Resources; Missouri Department of Natural Resources; BNSF Railway; the City of Louisiana; and Two Rivers Marina, operating as a lease concessionaire on USACE property. The team has also helped MoDOT set the $62 million construction budget and maintain and control critical documents throughout the project.