Big Dalton Dam Sluiceway Rehabilitation Project (Lake or Streambed Alteration Agreement No. 1600-2016-0056-R5)


SCH Number
Public Agency
California Department of Fish and Wildlife, Region 5 (CDFW)
Document Title
Big Dalton Dam Sluiceway Rehabilitation Project (Lake or Streambed Alteration Agreement No. 1600-2016-0056-R5)
Document Type
NOE - Notice of Exemption

Document Description
CDFW has executed lake and streambed alteration agreement no. 1600-2016-0056-R5, pursuant to section 1602 of the fish and game code to Los Angeles County Flood Control District. The project will rehabilitate the sluiceway outlet on Big Dalton Dam to support flood control operations, promote storm water capture and groundwater recharge, allow a safe emergency dewatering releases, and maintain a structurally-sound facility. Specific project activities include the following. On the upstream side of the dam reservoir bottom access road and work pad, a bypass pipeline into a 0.55 acre desilting basin, the sluice gate will be replaced with a hydraulic gate, a new debris rack, and existing corrugated metal pipe will be replaced with a concrete chute along west rim of reservoir. Downstream of the dam the repairs will occur at the following locations two existing dip crossings will be replaced with box culverts, a single span bridge will replace existing structure, dam apron and sluiceway repairs, a regulating valve will be installed at the sluiceway outlet, existing access road will be paved with Portland cement, and facility and miscellaneous repairs.

Contact Information
Matt Chirdon
California Department of Fish and Wildlife, Region 5
Lead/Public Agency
South Coast Region 3883 Ruffin Rd
San Diego, CA 92123

Phone : (805) 640-1165


34°10'12.2"N 117°48'32.2"W
Los Angeles
Cross Streets
2600 Big Dalton Canyon Rd
Parcel #

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
15301, 15302
Reasons for Exemption
Class 1, section 15301; The project is exempt b/c it includes the restoration of facilities necessary for public health and safety. The facilities will be restored in existing locations with no expansion of existing use. Class 2, section 15302; the project is exempt b/c it consists of reconstruction of existing facilities located in the same location with the same purpose and capacity for conveyance of flood flows.

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 or via phone at (916) 445-0613.

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