Lower Crystal Springs Dam Stilling Basin Connecting Channel Project
14 Documents in Project
Summary
SCH Number
2007012002
Lead Agency
City and County of San Francisco
Document Title
Lower Crystal Springs Dam Stilling Basin Connecting Channel Project
Document Type
NOD - Notice of Determination
Received
Posted
9/27/2016
Document Description
Project is limited to the repair of a failed restoration project below the dam in San Mateo Creek which has led to concerns of fish stranding in the stilling basin in uninhabitable conditions. A channel will be constructed through an existing riparian/emergent wetland restoration area below the base of the dam to permanently hydraulically connect and provide fish passage from the stilling basin at the base of the dam to a pool approx. 300 feet downstream. The channel will be excavated through existing riprap and the riparian wetland restoration area and will provide almost five feet of water during flows between 3 and 17 cubic feet per second. Other activities include installing two piezometers at the base of the dam, removing the existing riprap dissipation structure at the pool to install a new low flow discharge pipe, reconstructing the dissipation structure and planting the edges and banks of the creek with native vegetation. The CDFW is executing Lake and Streambed Alteration Agreement No. 1600-2015-0444-R3 pursuant to section 1602 of the Fish and Game Code to the project Applicant, San Francisco Public Utilities Commission.
Contact Information
Name
Suzanne DeLeon
Agency Name
CDFW Bay Delta Region
Contact Types
Lead/Public Agency
Phone
Location
Coordinates
Cities
Hillsborough
Counties
San Mateo
Cross Streets
Skyline Boulevard and Crystal Springs Road
Zip
various
Parcel #
Various
State Highways
92, 35, I-280
Schools
Odyssey Middle School, Highlands Elem.
Waterways
San Mateo, Laguna, San Andreas, and Pilarcitos Creeks
Other Information
Lat/Long Cont.
37-29-2.976/122-19-8.724
Notice of Determination
Approving Agency
CDFW
Approving Agency Role
Responsible Agency
Approved On
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
N/A
(5) A Statement of Overriding Considerations was adopted for this project
No
(6) Findings were made pursuant to the provisions of CEQA
No
Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613.