SR-116 Culvert Replacement Project (EA 04-0V180)
Summary
SCH Number
2026061225
Public Agency
California Department of Transportation, District 4
(DOT)
Document Title
SR-116 Culvert Replacement Project (EA 04-0V180)
Document Type
NOE - Notice of Exemption
Received
Posted
6/29/2026
Document Description
The California Department of Transportation (Caltrans) proposes replacing two culverts on State Route (SR-) 116 in Sonoma County near Sebastopol, one at Gilchrist Road (PM 32.33) and one 0.1 mile east of Lone Pine Road (PM 30.41). At Gilchrist Road, the existing drainage system will be removed and replaced with a new drainage inlet (DI), cross culvert, and flared end section at the outlet. The existing 12” corrugated metal pipe (CMP) will be replaced with an 18” corrugated steel pipe (CSP). The 12” culvert located 0.1 mile east of Lone Pine Road will be replaced with a new 12” culvert. Construction equipment will include, but not be limited to, asphalt concrete (AC) trucks, grinders, loaders, pavers, and rollers. One-way traffic control will be implemented during construction.
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
Unincorporated Sonoma County
Counties
Sonoma
Regions
Northern California, San Francisco Bay Area
State Highways
116
Other Location Info
The California Department of Transportation (Caltrans) proposes replacing two culverts on State Route (SR-) 116 in Sonoma County near Sebastopol, one at Gilchrist Road (PM 32.33) and one 0.1 mile east of Lone Pine Road (PM 30.41). At Gilchrist Road, the existing drainage system will be removed and replaced with a new drainage inlet (DI), cross culvert, and flared end section at the outlet. The existing 12” corrugated metal pipe (CMP) will be replaced with an 18” corrugated steel pipe (CSP). The 12” culvert located 0.1 mile east of Lone Pine Road will be replaced with a new 12” culvert. Construction equipment will include, but not be limited to, asphalt concrete (AC) trucks, grinders, loaders, pavers, and rollers. One-way traffic control will be implemented during construction.
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
Sonoma
Attachments
Notice of Exemption
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