F&R provided geotechnical services to support this Design-Build project to widen approximately 19 miles of I-95 in Robeson and Cumberland Counties. The project extended through undeveloped and agricultural properties. The construction began at Exit 20, NC 211 (N. Roberts Ave), and ended at Exit 41, NC 59. The project primarily involved a subsurface investigation and laboratory testing for 15 bridge sites, 10 culverts, and 16 retaining walls.

F&R managed up to four drill crews simultaneously across the project, including two in-house F&R drill crews. The team coordinated extensive traffic control setups, including shoulder and lane closures during day and night work. Over two weeks, F&R coordinated with a construction company working on an adjacent project to perform some of our work while lane closures were already in place for their project. This coordination saved the NCDOT almost $20,000 in lane closure costs.

F&R’s scope of work included performing 220 SPT borings and drilling footage of over 10,000 feet. After completion of the fieldwork, F&R reviewed the field soil classifications and selected approximately 200 samples for geotechnical laboratory testing. Once the team completed the fieldwork and laboratory testing, our geotechnical engineers evaluated the results and provided 30 Structure Inventory reports.