Riparian Mitigation at Crane Creek Regional Park – Poppy Drainage (Lake or Streambed Alteration Agreement No. EPIMS-SON-51242-R3)
43 Documents in Project
Summary
SCH Number
2002112033
Lead Agency
Sonoma Marin Area Rail Transit Commission
Document Title
Riparian Mitigation at Crane Creek Regional Park – Poppy Drainage (Lake or Streambed Alteration Agreement No. EPIMS-SON-51242-R3)
Document Type
NOD - Notice of Determination
Received
Posted
2/24/2025
Document Description
The California Department of Fish and Wildlife (CDFW) has executed Lake and Streambed Alteration Agreement (EPIMS-SON-51242-R3), pursuant to Fish and Game Code section 1602, to the project Applicant, Sonoma-Marin Area Rail Transit.
The project is limited to the enhancement of the riparian zone surrounding Poppy Drainage and three unnamed tributaries in the form of invasive plant removal, erosion and headcut repair, and native riparian plantings to offset the impacts from the project permitted under Lake and Streambed Alteration Agreement number EPIMS-SON-23219-R3. Riparian restoration will restore and enhance approximately 1.3 acres and 2,255 linear feet of riparian habitat. As part of the restoration effort, approximately 131 native riparian trees will be planted on-site. The project also includes installation of irrigation infrastructure within the project site.
Restoration and enhancement activities will maintain a vegetated alluvial channel with appropriately placed grade control elements to establish and maintain a stable cross section and longitudinal profile. Grade control structures are proposed to attenuate the propagation of multiple headcuts within the project reach. The stabilization elements will include grade control structures and riprap revetment within the channel and energy dissipation at the stormwater outfalls. These structures are installed to achieve a flatter bed slope based on the expected long-term stable slope. The rehabilitation effort focuses on a multi-stage channel geometry that seeks to re-establish a riparian corridor with hydraulic connection to a functional floodplain. The revegetation plan also matches the staged geometry, where hydrologic zones determine the locations of wetland, riparian, and upland plant species. To prepare planting zones for new native plantings, invasive Himalayan blackberry (Rubus armeniacus) and Fuller’s teasel (Dipsacus fullonum) will be cleared through a combination of mechanical removal and targeted herbicide application. Mechanical treatment of the Himalayan blackberry will consist of using hand tools.
Contact Information
Name
James Hansen
Agency Name
CA Department of Fish and Wildlife
Job Title
Environmental Scientist
Contact Types
Responsible Agency
Phone
Name
Bill Gamlen
Agency Name
Sonoma Marin Area Rail Transit Commission
Job Title
Lead Agency Contact
Contact Types
Lead/Public Agency
Phone
Location
Counties
Sonoma
Regions
San Francisco Bay Area
Other Location Info
The project is located at Poppy Drainage and three unnamed tributaries, in an unincorporated area of the County of Sonoma, State of California; Latitude 38.345858°, Longitude -122.644227°; within the Crane Creek Regional Park, Assessor’s Parcel Number 047-251-003.
Notice of Determination
Approving Agency
CA Department of Fish and Wildlife
Approving Agency Role
Responsible Agency
Approved On
County Clerk
Sonoma
Final Environmental Document Available at
The Final EIR prepared for the project is available to the general public at the office location listed above for the Lead Agency. CDFW’s record of project approval as a Responsible Agency is available at CDFW’s regional office.
Determinations
(1) The project will have a significant impact on the environment
No
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
Yes
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
No
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
No
(3) Mitigated measures were made a condition of the approval of the project
Yes
(4) A mitigation reporting or monitoring plan was adopted for this project
Yes
(5) A Statement of Overriding Considerations was adopted for this project
No
(6) Findings were made pursuant to the provisions of CEQA
Yes
Attachments
Notice of Determination
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