I-680 Controller Cabinet Upgrades and Loop Detector Replacements Project (EA 04-0V290)
Summary
SCH Number
2026100434
Public Agency
California Department of Transportation, District 4
(DOT)
Document Title
I-680 Controller Cabinet Upgrades and Loop Detector Replacements Project (EA 04-0V290)
Document Type
NOE - Notice of Exemption
Received
Posted
10/14/2026
Document Description
The California Department of Transportation (Caltrans) proposes upgrading controller cabinets and replacing inductive loop detectors at various location on Interstate (I-) 680 in Contra Costa County from about 0.67 mile north of the Oak Park Boulevard overcrossing at post mile (PM) R17.55 to about 0.11 mile south of the southbound (SB) off-ramp to Contra Costa Boulevard at PM 20.00. Construction will involve slot cutting the pavement to access and replace the inductive loop detectors. Upgrades of the controller cabinets will occur off the paved roadway.
Contact Information
Name
Juliane Smith
Agency Name
Caltrans
Job Title
Senior Environmental Scientist (NEPA/CEQA Specialist)
Contact Types
Lead/Public Agency / Project Applicant / Parties Undertaking Project
Address
Phone
Email
Location
Cities
Concord, Pleasant Hill
Counties
Contra Costa
Regions
Northern California, San Francisco Bay Area
State Highways
680
Other Location Info
The project is located on Interstate (I-) 680 in Contra Costa County from about 0.67 mile north of the Oak Park Boulevard overcrossing at post mile (PM) R17.55 to about 0.11 mile south of the southbound off-ramp to Contra Costa Boulevard.
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
PRC 21084; 14 CCR 15301 Class 1
Reasons for Exemption
Class 1 Existing Facilities. The project is not anticipated to result in any environmental impacts. The project contains a number of standardized project measures which are employed on most, if not all, Caltrans projects and were not developed in response to any specific environmental impacts resulting from the project.
County Clerk
Contra Costa
Attachments
Notice of Exemption
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