Barker Creek Roads Sediment Treatment (Lake or Streambed Alteration Agreement No. EPIMS TRI 60312-R1)
3 Documents in Project
Summary
SCH Number
2023120022
Lead Agency
California Regional Water Quality Control Board, North Coast Region 1
(RWQCB)
Document Title
Barker Creek Roads Sediment Treatment (Lake or Streambed Alteration Agreement No. EPIMS TRI 60312-R1)
Document Type
NOD - Notice of Determination
Received
Posted
9/10/2025
Document Description
Project Description: The California Department of Fish and Wildlife (CDFW) has executed Lake and Streambed Alteration Agreement (EPIMS-SHA-60312-R1), pursuant to Fish and Game Code section 1602, to the project Applicant, The Watershed Research and Training Center as represented by Leslie Mounivong.
The project is limited to the Barker Valley Road system which contains culvert crossings, poor road shaping and drainage, and has changed from infrequent rural use to frequent industrial use which has resulted in the native surface road becoming a significant source of sediment pollution into Barker Creek. The geologic formation comprising the Barker Valley area leads to flashier rain runoff and contributes to high turbidity yield when eroded. Barker Creek suspended sediment loads were recorded as 50 - 100 tons/square mile in 2002 (Graham Mathews and Associates 2003) which was attributed to the road network and the effects of land use in the privately held portions of the watershed. Road-source sediment loading in Barker Creek has been an ecological issue for over 30 years. Funded by the CDFW’s Cannabis Restoration Grant Program, the Barker Creek Roads Sediment Treatment project proposes to reduce hydrologic connection of the Barker Valley Road system to Barker Creek and halt the worsening road-sourced sediment pollution. The project will achieve this goal by upgrading or installing 12 culvert crossings to accommodate 100-year flows; installing or maintaining approximately 38 rolling dips over four (4) miles of road; reshaping the road prism to improve drainage; armoring at culvert inlets, outlets, around the footprint of culvert crossings, and existing road ditches; and installing a sediment basin. All culvert upgrades and installations will use corrugated metal pipe (CMP). Construction is planned for 2026; however, this depends on the attainment of implementation funds. The engineering plans describe existing site conditions and the proposed improvements. A sediment basin will be installed upslope from site BV-SC-03; the sediment basin will be 23 feet in length by 12 feet in width and 3.5 feet in depth and will capture sediment from roadside ditch runoff.
Contact Information
Name
Dyana Judnick
Agency Name
CDFW
Job Title
Environmental Scientist
Contact Types
Responsible Agency
Phone
Name
Leslie Mounivong
Agency Name
The Watershed Research and Training Center
Job Title
Watershed Stewardship Program Environmental Compliance Specialist
Contact Types
Project Applicant / Parties Undertaking Project
Address
Phone
Name
Shannon Strong
Agency Name
North Coast Regional Water Quality Control Board
Job Title
Environmental Scientist
Contact Types
Lead/Public Agency
Phone
Location
Cities
Hayfork
Counties
Trinity
Regions
Northern California
Waterways
Unnamed tributaries to Barker Creek
Other Location Info
Site ID Decimal Degrees Assessors Parcel Number
SMW2-SC-01 40.597554, -123.1097099 015-410-050-000
SMW2-SC-02 40.59827957, 123.1116157 015-410-049-000
SM-SC-02 40.572827, -123.106756 015-420-024-000
SM-SC-03 40.57814056, -123.1140203 015-420-023-000
SM-SC-04 40.57715902, 123.1134676 015-420-022-000
CC-SC-01 40.5758465, -123.1120209 015-420-020-000
SM-SC-06 40.57280043, -123.1127013 017-440-023-000
SM-SC-07 40.57191862, -123.1127908 017-440-022-000
BV-SC-03 40.57122708, -123.108739 017-440-004-000
BV-SC-02 40.57370344, -123.1017792 017-440-003-000
BV-SC-01 40.57370344, -123.1017792 017-010-074-000
SM-SC-01 40.57944008, -123.1136536 015-420-025-000
Notice of Determination
Approving Agency
CDFW
Approving Agency Role
Responsible Agency
Approved On
County Clerk
Trinity
Final Environmental Document Available at
601 Locust Street Redding, CA 96003
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
No
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
Yes
(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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