JBJ RANCH PHASE 1 (TTM 31818-1) PROJECT (Lake or Streambed Alteration Agreement No. (EPIMS-RIV-26265-R6)


SCH Number
Lead Agency
Riverside County
Document Title
JBJ RANCH PHASE 1 (TTM 31818-1) PROJECT (Lake or Streambed Alteration Agreement No. (EPIMS-RIV-26265-R6)
Document Type
NOD - Notice of Determination
Document Description
The California Department of Fish and Wildlife (CDFW) has executed Lake and Streambed Alteration Agreement (EPIMS-RIV-26265-R6), pursuant to Fish and Game Code section 1602, the project Applicant, Mission Pacific Land Company as represented by John Abel. The Project is limited to the widening of Horsethief Canyon Creek corridor to approximately 300 feet wide. This includes the existing Cow Canyon Creek corridor, which is a tributary to Horsethief Canyon Creek. The corridor will be widened to re-establish a new wider natural floodplain to convey the 100-year flood event for both creeks and allow wildlife movement through the corridor. The widening of the existing corridor will require temporary impacts to several locations along the periphery of existing streambed and riparian habitat. The newly established floodplain will be restored with native Riversidean alluvial fan sage scrub and riparian habitat. The Project also proposes to decommission and remove the Bosley Lane roadway crossing in its entirety where it crosses Horsethief Canyon Creek. The removal of Bosley Lane will entail breaking up the existing asphalt, removing/disposing of the asphalt and other fill material, and recontouring the area to re-establish the flow-through creek condition and transition natural grades. Riprap lined slopes will be created on either side of the newly widened and re-established floodplain at this location per the Riverside County Flood Control and Water Conservation District (RCFC & WCD) facility design. Permanent impacts downstream of Bosley Lane are included in this Agreement to address future, routine maintenance activities within two separate RCFC & WCD easements along/within the riprap lined slopes and re-established floodplain areas.

Contact Information

Breanna Machuca
Agency Name
Fish and Wildlife, Region 6
Job Title
Environmental Scientist
Contact Types
Responsible Agency


Southern California

Notice of Determination

Approving Agency
Fish and Wildlife, Region 6
Approving Agency Role
Responsible Agency
Approved On
County Clerk
Final Environmental Document Available at
County of Riverside 4080 Lemon Street, 12th Floor Riverside, CA 92502


(1) The project will have a significant impact on the environment
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
(3) Mitigated measures were made a condition of the approval of the project
(4) A mitigation reporting or monitoring plan was adopted for this project
(5) A Statement of Overriding Considerations was adopted for this project
(6) Findings were made pursuant to the provisions of CEQA


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