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St. Louis County outlines timeline for Trinon Lane Bridge (No. 274C) replacement, targets 2027 reopening

St. Louis County Department of Transportation and Public Works · February 3, 2026
AI-Generated Content: All content on this page was generated by AI to highlight key points from the meeting. For complete details and context, we recommend watching the full video. so we can fix them.

Summary

St. Louis County said inspections found severe deterioration that closed Trinon Lane Bridge (No. 274C) on Sept. 18, 2024, and outlined a design, right-of-way and funding timeline that anticipates environmental approval by MoDOT in January 2026 and construction advertised in early 2027.

An unidentified presenter from the St. Louis County Department of Transportation and Public Works said the county plans to replace Trinon Lane Bridge (No. 274C) after annual inspections found serious deterioration and the structure was closed on Sept. 18, 2024. "As part of the annual bridge inspections, county staff discovered significant deterioration on 09/18/2024 that resulted in a full closure of the structure," the presenter said.

The presenter outlined the procurement and design schedule. County staff posted a request for engineering…

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