SR 680 HOV Lane Completion and Express Lane Conversion

18016 – Contra Costa Transportation Authority – Interstate 680 HOV Completion and Express Lanes Project (# 8001), (Subcontractor to Bay Cities Paving & Grading, Inc.)

This project provides construction of a high occupancy vehicle (HOV) lane on southbound I-680 between North Main Street in Walnut Creek and Rudgear Road in Alamo and converts the HOV lane to an express lane on southbound I-680 from just south of Marina Vista Avenue in Martinez to Rudgear Road in Walnut Creek. The structures work includes a bridge widening, retaining walls, barrier slabs, sound walls, pre-stressed concrete and CIDH pilings.