Bedrock Removal at the Retaining Walls

The Vasco Rd Safety Improvements Project - Phase 1 is designed to improve the safety of approximately 1 mile of Vasco Rd between the cities of Brentwood and Livermore. This stretch of twisting Vasco Rd has heavy, fast moving traffic and a history of serious injury accidents. The project consists of installing a concrete median barrier along the 1 mile project limits and widening the southbound pavement to provide a truck climbing lane, thereby eliminating the gap in the existing truck climbing lanes along Vasco Rd. To accommodate these safety improvements, 6 retaining walls, storm drains, wildlife crossings, and a bridge widening will be constructed. This project is anticipated to take 1.5 yrs (2 construction seasons) to complete, anticipated in December 2011. Check out this blog from time to time to see updates on construction progress and facts about the project.

Sunday, October 31, 2010

Bedrock Removal at the Retaining Walls

Teichert Construction has been excavating portions of the hillside to construct Soil Nail Walls 4,6, and 7. Various soil strata are encountered, including significant concretions of cemented sandstone. Construction equipment such as dozers and excavators complete the majority of retaining wall excavation. On occasion, hydraulic breakers are required to crack the hard sandstone rock prior to it's actual removal.