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St. Louis County outlines Old Halls Ferry Road overhaul: road diet, bike lanes and signal upgrades
Summary
St. Louis County presented a public update on plans to rehabilitate about 1.67 miles of Old Halls Ferry Road, including resurfacing, a road diet to reduce speeding, new bike lanes, ADA curb ramps and signal technology; design continues through 2026 with construction planned for 2029 and an estimated cost of about $8.4 million.
St. Louis County Department of Transportation staff presented a public update on a 1.67-mile rehabilitation of Old Halls Ferry Road, saying the project would resurface pavement, add bike lanes, upgrade pedestrian crossings and modernize traffic signals.
The county’s project video said the corridor extends from New Halls Ferry Road to Vale Avenue and listed safety-focused changes including a road diet (reducing four travel lanes to two with turn lanes), separate bike lanes in the outer lanes, reconstructed ADA-compliant curb ramps and flashing yellow arrows at left-turn locations. The video gave an estimated total cost of "approximately $8,400,000," and said federal reimbursement during construction is expected to lower county taxpayer costs by more than $6,700,000.
Why it matters: county planners said the design is meant to reduce speeding and weaving on this multilane corridor while improving access for people walking and biking. Staff said the road diet and added medians will narrow travel lanes, widen bike…
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