L Street Pathway to Transit Phase II

The L Street Pathway to Transit Phase II project, identified as PW 234-16, is a multimodal infrastructure initiative by the City of Antioch Public Works Department. The project focuses on enhancing pedestrian and bicyclist facilities along L Street between 9th Street and Sycamore Drive. Key construction activities include widening the roadway between 10th Street and Sycamore Drive, re-striping for multimodal use, and installing ADA-compliant curb ramps. To protect the Contra Costa County Fairgrounds property and Union Pacific Railroad structures, the project includes the construction of retaining walls. Additional site work involves relocating utilities such as storm drains, water meters, and electrical vaults, as well as the removal of approximately 91 trees. The project is subject to rigorous environmental and regulatory standards, with an anticipated construction duration of 18 months. Compliance requirements include adhering to Caltrans Standard Specifications for air quality and noise control, as well as managing lead and chromium in pavement materials per Caltrans Standard Special Provision 14-11.12. Environmental safeguards include soil sampling for aerially deposited lead and lead-based paint, implementing a Storm Water Pollution Prevention Plan, and managing treated wood waste according to California Health and Safety codes. The project has undergone an Initial Study and Mitigated Negative Declaration process to address impacts on biological resources, air quality, and noise levels.