Vasco Road Safety Improvements Project, Project No. 0662-6R4254/4255, CP#09-055, Phase 2
6 Documents in Project
Summary
SCH Number
2009062094
Lead Agency
East Contra Costa County Habitat Conservancy
Document Title
Vasco Road Safety Improvements Project, Project No. 0662-6R4254/4255, CP#09-055, Phase 2
Document Type
NOD - Notice of Determination
Received
Posted
6/26/2026
Document Description
As a part of the Vasco Road Safety Improvements Project, Project No. 0662-6R254/4255, CP#09-55, Phase 2 (Project), State Route 4 Bypass Authority is seeking take coverage from the East Contra Costa County Habitat Conservancy (Conservancy) under the ECCC Habitat Conservation Plan/Natural Community
Conservation Plan (HCP/NCCP) to widen a 1.5 mile stretch of Vasco Road roadway to install a median barrier while maintaining existing travel lanes, with associated drainage, bridge expansion, wildlife crossings, and roadway improvements between the cities of Brentwood and Livermore (see attached map). For purposes of the Project, the Conservancy is the CEQA responsible agency. Contra Costa County Department of Conservation and Development prepared an Initial Study/Mitigated Negative Declaration (IS/MND) and Mitigation Monitoring and Reporting Plan (MMRP) for the Project, the Vasco Road Safety Improvement Project SCH#2009062094 dated August 25, 2009 and an Addendum dated April 25, 2012. The Conservancy is a CEQA responsible agency for purposes of the Project and, as such, will rely on the approved IS/MND, the MMRP and environmental record prepared by Contra Costa County Department of Conservation and Development for purposes of fulfilling its responsibilities under CEQA.
Contact Information
Name
Joanne Chiu
Agency Name
East Contra Costa County Habitat Conservancy
Job Title
Principal Planner
Contact Types
Responsible Agency
Address
Phone
Name
Claudia Gemberling
Agency Name
Contra Costa County Public Works Department
Job Title
Environmental Services
Contact Types
Lead/Public Agency
Phone
Email
Location
Coordinates
Cities
Brentwood
Counties
Contra Costa
Regions
Northern California, Unincorporated
Zip
92514
Total Acres
30
State Highways
SR 4
Airports
Byron
Schools
Byron Union/Liberty Union
Waterways
Brushy Creek
Township
1S
Range
3E
Section
31
Base
MDB&m
Other Location Info
This project is roughly a 1.5 mi section (Stations 290+00 through 363+50) of Vasco Road between the cities of Brentwood and Livermore in Contra Costa County.
Notice of Determination
Approving Agency
East Contra Costa County Habitat Conservancy
Approving Agency Role
Responsible Agency
Approved On
County Clerk
Contra Costa
Final Environmental Document Available at
Contra Costa County Public Works Department, 255 Glacier Drive, Martinez, CA 94553
Determinations
(1) The project will have a significant impact on the environment
No
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
No
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
Yes
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
No
(3) Mitigated measures were made a condition of the approval of the project
Yes
(4) A mitigation reporting or monitoring plan was adopted for this project
Yes
(5) A Statement of Overriding Considerations was adopted for this project
No
(6) Findings were made pursuant to the provisions of CEQA
Yes
Attachments
Notice of Determination
Disclaimer: The Governor’s Office of Land Use and Climate Innovation (LCI) accepts no responsibility for the content or accessibility of these documents. To obtain an attachment in a different format, please contact the lead agency at the contact information listed above. For more information, please visit LCI’s Accessibility Site.