Mark West Creek Regional Park & OSP Bridge Replacement
Summary
SCH Number
2021100251
Public Agency
Sonoma County Regional Parks
(SCRP)
Document Title
Mark West Creek Regional Park & OSP Bridge Replacement
Document Type
NOE - Notice of Exemption
Received
Posted
10/15/2021
Document Description
The project is to replace the existing park entry bridge over Porter Creek with a new, full-span, concrete and steel bridge at the current crossing but well outside the banks and immediately upstream of the existing bridge. The existing bridge provides the only access to a residence and equestrian facilities and is not structurally stable enough to accommodate large emergency vehicles; the new bridge has been designed and engineered to support them (H-20 loading). The bridge will arrive onsite prefabricated. Onsite construction will be limited to bridge abutments and minor modification of bridge approaches on the existing entry road to connect with the new bridge.
Construction will disturb 0.4 acres of the developed entry area and require 110 cubic yards of net fill. No native vegetation needs to be removed. Project plans include specific BMPs to prevent erosion and sedimentation. At this time, the existing bridge will be retained so that existing tenants can access the property. Its future use/removal will be determined as part of the master plan process which is scheduled to begin this year.
The purpose of replacing the bridge is to increase the size and structural weight limit enough to accommodate large emergency vehicles. In addition, replacing the wooden bridge deck with a steel and concrete bridge deck will make it more resistant to wildfire.
Contact Information
Name
Mark Cleveland
Agency Name
Sonoma County Regional Parks (SCRP)
Contact Types
Lead/Public Agency / Project Applicant / Parties Undertaking Project
Phone
Location
Coordinates
Cities
Santa Rosa
Counties
Sonoma
Regions
San Francisco Bay Area
Cross Streets
Porter Creek Road and Leslie Road
Zip
95404
Total Acres
0.4
Parcel #
APN 079-090-015
Waterways
Porter Creek
Township
8N
Range
8W
Section
12
Base
MtDiablo
Other Location Info
Mark West Creek Regional Park & Open Space Preserve 3000 Porter Creek Road
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
§15302: Replacement or Reconstruction
Reasons for Exemption
Pursuant to §15302: Replacement or Reconstruction the bridge construction is exempt from CEQA because the new bridge will replace the existing bridge at the same site and for the same purpose. The bridge replacement will not increase traffic capacity; the only expansion is the increase in stability to allow large emergency vehicles, which is consonant with the slight expansion allowed to prepare for emergency described in §15302(a).
County Clerk
Sonoma
Attachments
Notice of Exemption
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