This project involves the total reconstruction of eight miles of US 49 from south of Florence, MS to the truck scales area in Richland, MS. The route consists of two lanes of severely distressed concrete pavement in both directions, with multiple signalized intersections and several hundred driveways to homes and businesses. There are three twin bridge locations which will be reconstructed as well. The route will be expanded to at least three lanes in each direction with extensive drainage improvements and intersection improvements. Due to the volume of traffic, lane closures can only be performed at night.
The team of Michael Baker International (prime) and Thompson Engineering (sub) was selected to perform construction engineering and inspection (CEI) for the owner. Thompson is responsible for all materials testing on the project. A fully functional laboratory was established within the project limits. Most of the construction materials related to earthwork and concrete are being tested in this lab and out in the field. Asphalt testing in the field is performed by Thompson, and the mix testing is performed by the Mississippi Department of Transportation (MDOT). Thompson is responsible for collecting Pile Driving analyzer data on all test piles and submitting a report with recommendations to MDOT’s geotechnical branch for production pile lengths. Thompson is also responsible for monitoring the contractor’s sediment and erosion control efforts in accordance with MDOT’s stormwater specifications and permits. In addition to daily generation of construction inspection reports, Thompson performs a weekly, third-party inspection for submittal to MDOT and the contractor to ensure compliance with stormwater permits.