The Hamilton County Public works Department has now completed repair work on Roberts Mill Road and the road is now open to the public.
Over the last 30 days work crews have worked to stabilize two sections of Roberts Mill Road totaling about 230 feet. The repair work included cement shotcrete slop stabilization and the installation of self–drilling nails beneath the roadway.
For those curious about soil nailing, this is the term used to describe the soil stabilization technology where pressure grouted anchors are installed in either soil or loose rock.
The anchors transfer forces into the ground by means of a steel tendon or “micro-pile”, and a well-defined body of grout. This method allows for the transfer of external forces into the ground. The existing ground slope surface area or “face,” is then covered with a connecting layer of reinforced “shotcrete”, which is a cementitious covering. The process reinforces the ground’s ability to resist stress. In the case of Roberts Mill Road, the side slopes that support the roadway bed will be reinforced.
Additionally, guardrails were replaced and road was paved with asphalt.
The work was conducted by Geo Stabilization International which had previously worked on the W Road.