Riddell Preserve Sediment Reduction and Enhancement Project

Summary

SCH Number
2017078513
Lead Agency
Regional Water Quality Control Board, Region 1 (North Coast), Santa Rosa
Document Title
Riddell Preserve Sediment Reduction and Enhancement Project
Document Type
NOE - Notice of Exemption
Received

Document Description
The primary purposed of the project is reduce sediment discharging from an existing deteriorating gravel road and stream crossing and enhance the riparian zone. The proposed project would include replacing existing crossing structure with 10 culverts of increased diameter to accommodate 100-year storm events. The proposed culverts will be set to grade, in-line with natural stream channel orientation and in accordance with the California Department of Fish and Wildlife, California Salmonid Stream Habitat Restoration Manual. At two sites failed culverts will be removed and bridges will be installed to enhance flows and decrease sediment discharge. The project also proposed to replace an existing narrow channel bridge with one that is designed to enhance creek flow, gravel transport and woody debris through the reach.

Contact Information
Gil Falcone
Regional Water Quality Control Board, Region 1 (North Coast), Sa
5550 Skylane Boulevard, Suite A
Santa Rosa, CA 95403

(707) 576-2830

Location

Cities
Healdsburg
Counties
Sonoma

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
S:15333
Reasons for Exemption
The project involves maintenance, restoration, enhancement of fish, plant and wildlife habitat through culvert replacement in accordance with CDFW guidelines for the primary purpose to improve habitat and reduce sedimentation.
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