I-680 Loop Detector Installation Project


SCH Number
Public Agency
California Department of Transportation, District 4 (DOT)
Document Title
I-680 Loop Detector Installation Project
Document Type
NOE - Notice of Exemption
Document Description
Caltrans proposes to replace loop detectors at six locations on I-680 in Contra Costa County from 0.5 mile south of Sycamore Valley Road to 0.1 mile south of the Lilac Drive undercrossing. Existing loop detectors will be abandoned in place and new ones installed. Existing electrical boxes will be used. New trenches will be cut, and new induction wires placed. Some project elements will occur off the paved roadway, but all work will be within Caltrans right of way.

Contact Information

Juliane Smith
Agency Name
Caltrans District 4
Job Title
Acting Senior Environmental Scientist - Specialist
Contact Types
Lead/Public Agency / Project Applicant


Alamo, Danville, Walnut Creek
Contra Costa
Countywide, Northern California, San Francisco Bay Area
State Highways
Other Information
PM R6.31 - 13.36

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
PRC 21084; 14CCR 15300 et seq. Class 1(c)
Reasons for Exemption
Class 1 (c) Existing Facilities All project activities are within Caltrans right of way and environmental impacts are minimal.
County Clerk
Contra Costa


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