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.

Wednesday, March 16, 2011

Stage 2: Working Through Wet Weather

Teichert Construction continues to proceed with Stage 2 improvements during the recent wet weather. The majority of the construction operations consist of installing storm drain along the roadway in conjunction with wildlife crossings. The wet weather limits the ability for construction equipment to access grading areas near the retaining walls. Prolonged days of thick fog has also limited Teichert Construction's ability to implement lane closures for installation of storm drains across Vasco Rd. As spring approaches, Stage 2 roadwork will commence upon completion of storm drain operations.

In early February, Teichert Construction performed remedial slide repair work at Wall 4 North. This repair operation consisted of excavating a hillside to remove a recently discover slide plane, installing a keyway, and regrading the slope to accommodate the future lane widening.



Excavated storm drain trench at Wall 6.



Forming a storm drain inlet around the recently installed storm drains at Wall 6.



After the recent rains, a weep hole drains subsurface water collected behind Soil Nail Wall 7.