В Кентукки изменят схему движения на Interstate 69 для укрепления грунта под дорогой

MADISONVILLE, Ky. — Motorists traveling Interstate 69 near mile marker 111 in Hopkins County should expect a traffic shift Friday afternoon as crews begin the next phase of a project addressing subsurface mine voids beneath the interstate, according to an announcement from the Kentucky Transportation Cabinet District 2 office.. Contractors will shift traffic from the fast lanes into the slow lanes beginning in the early afternoon Friday, Sept. 4. Once the shift is in place, crews will begin drilling new bore holes to inject grout into abandoned mine workings beneath the fast lanes and median. The grout will fill voids in the underground coal mine and provide additional support for the ground beneath the interstate. The stabilization work is part of the Kentucky Transportation Cabinet’s ongoing effort to monitor and stabilize a section of roadway affected by historic underground mining in the area. Because historical maps of the mine are unavailable, engineers are using subsurface investigations to determine the location and condition of the underground workings. The speed limit will remain 55 mph after the traffic shift. The slow lane in each direction will remain open to traffic. During the project’s first phase, crews drilled bore holes along the roadway shoulder and filled them with concrete to create a dam, or retaining wall, through the project area. Crews then began injecting grout into holes drilled in the slow lane. Grout is a specific blend of concrete used to fill abandoned mine workings. During the second phase, crews will inject the same grout into holes along the interstate’s fast lanes and median.