Overview
Timmons worked with UNC Chapel Hill to repair West Drive in the heart of the UNC campus. West Drive was a one-way street that had been heavily damaged by construction traffic and utility trenches. Timmons was hired to assess West Drive and some minor settlements around adjacent Marsico Hall to provide recommendations for repairs and replacement of pavements. During construction, additional settlement and building
waterproofing damage was found around Marsico Hall. UNC tasked Timmons to determine the cause and provide repair
recommendations to mitigate these issues.
Geotechnical work included investigation in the field by our experienced geotechnical engineering staff utilizing hand tools to minimize damage and disruption to the building and the ongoing campus environment. Our staff also spent numerous hours reviewing construction testing documents from the construction of Marsico Hall to determine the cause of the settlement under the adjacent sidewalk. Proposals were made for additional exploration of the stormwater drainage system pipes under the sidewalk. Following these explorations, a plan was made for the repair of the sidewalk and remediation of the subsurface conditions that caused the settlement.
The final project consisted of the removal and replacement of the asphalt, curb and gutter, and sidewalks along West Drive while converting the drive into two-way traffic and addressing accessibility and drainage issues. In addition, our traffic designers developed detailed traffic control phasing plans to keep pedestrian and vehicular routes clear and safe at all points during construction.
