Contra Costa County (County) applies various road surface treatments to selected unincorporated County roadways to prevent water from seeping under the pavement, in order to extend pavement life. This CEQA is for the two following projects. The two projects consist of road surface preparation including crack sealing, pavement grinding, removal of pavement striping & markings, pavement and base failure repair, weed removal, cleaning and sweeping roadway surfaces, applying surface treatments on the selected roadways, thermoplastic striping, and site cleanup.
1) 2016 Asphalt Rubber Cape Seal, Project No. 0672-6U2154 (Bay Point area) [approximately 269,082 square yards]: The project consists of applying an asphalt rubber cape seal road surface treatment to selected roadways in the Bay Point area to extend pavement life.
2) 2016 Slurry Seal Project No. 0672-6U2153 (Alamo and Danville areas)/[approximately 28,196 square yards total]: The project consists of applying slurry seal surface treatments to selected roadways. The surface seal provides a membrane to prevent water from seeping under the pavement that can rapidly deteriorate the road. In many cases the use of a surface seal will eliminate the need to do expensive pavement patching and will add years to the life of the existing pavement.
The two projects will maintain the existing drainage pattern and will not create new impervious areas. Appropriate Best Management Practices (BMPs) will be implemented to protect storm drain inlets. No tree removal will be necessary. Tree and shrubbery trimming may be necessary throughout the project areas. In order to minimize damage to trees, any roots exposed during construction activities will be clean cut. Herbicides may be sprayed to remove weeds growing on the edge of pavement.
Although some of the roadways (Bay Point area) slated for surface treatment fall within the East Contra Costa County Habitat Conservation Plan (HCP) Service Area, all work will occur within existing paved roadways classified by the HCP as “urban” Land Cover Type. This Land Cover Type is not subject to HCP conditions or fees.
Residential streets will be closed for approximately half a day in order to apply road surface treatments and to provide sufficient time for it to adhere to the road surface. Residents will be notified prior to any construction activities. “No Parking” signs will be posted the day before actual road surface treatment application. Emergency vehicles will have access at all times. Utility adjustments may be necessary in support of the projects. Although unlikely, real property transactions including right-of-way may be necessary in support of the projects.
Delay in approving the project may result in a delay of design, construction, and may jeopardize funding.