State Route 4 (East) Widening Project

7 Documents in Project


SCH Number
Lead Agency
California Department of Transportation, District 4
Document Title
State Route 4 (East) Widening Project
Document Type
NOD - Notice of Determination
Document Description
The Contra Costa Transportation Authority (CCTA) in cooperation with the California Department of Transportation (Caltrans) proposes to widen State Route 4 (SR 4), and its interchanges and local roadways from just west of the Contra Loma Boulevard-L Street Interchange to just east of the G Street Overcrossing. The project is a phased component of the widening of SR 4 from just west of Loveridge Road to SR 160. The work will be conducted in 2 phases. The first phase of work requires the rerouting of a new 24-inch PG&E natural gas pipeline across a channelized section of West Antioch Creek, approximately 720 feet northwest of the existing Contra Loma 24' high pressure main from the south side of West Antioch creek to the north side of the creek. The gas main will cross the creek channel and flood plain through a section of a creek that is approximately 100' wide from top of bank to top of bank. The California Department of Fish and Game is executing a lake and Streambed Alteration Agreement Number 1600-2010-0097-3 pursuant to Section 1602 of the Fish and Game Code to the project Applicant Susan Miller/Contra Costa Transportation Authority.

Contact Information

Melissa Escaron
Agency Name
Fish and Game
Contact Types
Lead/Public Agency


Antioch, Pittsburg
Contra Costa
Cross Streets
0.8 mile west of Loveridge Road to 0.7 mile eastof Hillcrest Avenue
Total Acres
6.46 lin. mi.
State Highways
Martin Luther King Children's Center and Preschool, Los Medanos
West Kirker Creek, Unnamed Drainage (east of Loveridge), East Kirker Creek, West Antioch Creek,
Other Information
Schools: College, Turner ES, Marsh ES, Live Oak Continuous School, Bidwell ES, Park MS, Belshaw ES, Christian HS, Promised Land Christian School, Cornerstone Christian School, Hilltop Christian School, Stepping Stones Academy Waterways: Los Medanos Wasteway, Markley Creek

Notice of Determination

Approving Agency
Fish and Game
Approving Agency Role
Responsible Agency
Approved On


(1) The project will have a significant impact on the environment
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
(3) Mitigated measures were made a condition of the approval of the project
(4) A mitigation reporting or monitoring plan was adopted for this project
(5) A Statement of Overriding Considerations was adopted for this project
(6) Findings were made pursuant to the provisions of CEQA

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at or via phone at (916) 445-0613.

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