2024 Culvert Replacement Propgram


SCH Number
Public Agency
Sonoma County
Document Title
2024 Culvert Replacement Propgram
Document Type
NOE - Notice of Exemption
Document Description
The Sonoma County Department of Transportation and Public Works 2020 Culvert Replacement Program entails removal of existing deteriorating culverts and installing replacement culverts prioritizing those with trench plates. Twelve culverts will be replaced: 1) Pepper Road Postmile (PM) 15.66 2) Walker Road PM 11.93 3) Slusser Road PM 10.92 4) Laughlin Road PM 31.89 5) Freezeout Road PM 10.05 6) Lytton Station Road PM 11.06 7) Grove Street PM12.57 8) Hutchinson Road PMl0.27 9) Mill Station Road PMl0.86 10) Green Valley Road PM 10.01 11) Londonberry Drive PM 10.30 12) Hidden Hills Drive PM 9.97 13) Sonoma Mtn. Road PM 22.23 14) Sequoia Ave. PM 10.01 15) Roblar Road This project consists of structural excavation to remove existing cross culverts, installation of replacement cross culverts, cut-off walls, and rock slope protection, as needed. Trenches will be backfilled, hot mix asphalt placed, and striping painted. If water is present at the worksite or has the potential to come into contact with curing concrete, a water diversion plan will be implemented. Erosion and sediment control BMPs will be used and installed at each worksite. No trees will be removed during construction; however, some pruning and ground vegetation may be required to access the work sites.

Contact Information

David Walsh
Agency Name
Permit Sonoma
Job Title
Senior Environmental Specialist
Contact Types
Lead/Public Agency


Cloverdale, Cotati, Healdsburg, Petaluma, Rohnert Park, Santa Rosa, Sebastopol, Sonoma, Windsor
State Highways
Hwy 101

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Categorical Exemptions: Sections 15301, 15302, 1530 J (c), and 15302(c)
Reasons for Exemption
The proposed project is categorically exempt from environmental review pursuant to Sections 15301 [Existing Facilities] and 15302 [Replacement or Reconstruction] of the Guidelines for Implementation of CEQA. Section 1530 J (c) exempts the repair or minor alteration of existing highways and streets, sidewalks, gutters, bicycle and pedestrian trails, and similar facilities. Section 15302(c) exempts the replacement or reconstruction of existing utility systems and/or facilities involving negligible or no expansion of capacity. No exceptions listed under Section 15300.2 apply. The re is no reasonable possibility that the project would have a significant effect on the environment.
County Clerk


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