09/01/2026
Rinker Design Associates is QC management supporting Branch Civil, Inc. on the I-81 CIP Exit 143 to Exit 150 project to deliver these valuable corridor improvements. This video is the first test blast that used 58 holes to break up rock for excavation. A typical blast will include approximately 125 holes. To safely complete the operation, traffic was temporarily stopped in both directions and at four interchanges along I-81, requiring a highly coordinated traffic control effort from everyone involved.