Louisiana Department of Transportation and Development Launches $8.44 Million Pavement Rehabilitation Project on US 90

en.Wedoany.com Reported - On November 12, the Louisiana Department of Transportation and Development launched a pavement rehabilitation project on US 90 in St. Mary Parish. The project represents an investment of $8,444,200, with the construction limits extending from approximately 1.6 miles southeast of the US 90/LA 317 intersection to approximately 0.5 miles northwest of the US 90/LA 182 intersection, near the Wax Lake Outlet Bridge. The project is expected to be completed by August 28, 2027. Barriere Construction Co., LLC was awarded the contract at the lowest bid of $8,444,200, with three other firms participating in the bidding.

The project will primarily employ asphalt pavement milling and resurfacing. Approximately 84,200 square yards of existing pavement will be milled, approximately 32,800 tons of asphalt concrete will be placed, and deep patching with a minimum thickness of 18 inches will be performed on approximately 5,523 square yards of pavement. The work also includes approximately 84,200 square yards of roadway reinforcing grid installation, embankment improvements, and fill operations totaling approximately 1,798 cubic yards. These measures will address both surface wear and localized structural damage of the existing pavement, rather than merely applying a thin asphalt overlay.

Associated work includes cleaning approximately 6,033 linear feet of existing drainage pipe, installing temporary sedimentation facilities and approximately 19,900 linear feet of temporary silt fence, as well as re-striping roadway markings, installing reflective pavement markers, and placing temporary concrete protective barriers in the work zone. The project will also include temporary traffic signs and variable message signs to support lane shifts and traffic management during construction.

Construction is generally scheduled from 7:00 a.m. to 5:00 p.m., Monday through Friday, with night and weekend work added as necessary. US 90 will remain open to traffic during construction, but intermittent alternating lane closures will be implemented. When oversize vehicles pass through the work zone, the lane width will be restricted to 14 feet. Emergency vehicles will be permitted to pass, though short delays may occur. The project is scheduled to continue through the end of August 2027, with specific progress subject to adjustment based on weather and field construction conditions.