DuPont Mendocino Mountain Top Stream Crossings Project (Lake or Streambed Alteration Agreement No. 1600-2019-0239-R1)
384 Documents in Project
Summary
SCH Number
2016112028
Lead Agency
Mendocino County
Document Title
DuPont Mendocino Mountain Top Stream Crossings Project (Lake or Streambed Alteration Agreement No. 1600-2019-0239-R1)
Document Type
NOD - Notice of Determination
Received
Posted
7/1/2019
Document Description
The project is limited to four encroachments. Three proposed encroachments are to upgrade failing and undersized stream crossing culverts. Work for these encroachments will include excavation, removal of the failing culverts, replacement with new properly sized culverts, backfilling and compaction of fill , and rock armoring as necessary to minimize erosion. One crossing of the three encroachments = described above is to upgrade a failing and undersized ditch relief culvert (DRC) that has formed an erosion gully that is hydrologically connected to a nearby stream. In addition to the work described above, work at DRC-3 will also involve backfilling the eroded gully with compacted fill, placement of topsoil over the fill area, seeding with native grass, and overlaying exposed area with weed-free straw mulch for erosion control. The final encroachment is to upgrade a low water crossing without any crossing facility to a rock armored crossing. Work for this encroachment will include excavation, formation of a road dip, construction of an armored road chute/outfall, and rocking the approaches to the crossing.3
Contact Information
Name
John Herrera
Agency Name
Department of Fish and Wildlife Northern Region
Contact Types
Lead/Public Agency
Phone
Location
Coordinates
Counties
Mendocino
Parcel #
049-030-29
Township
12N
Range
14W
Section
24
Base
MDB&M
Other Location Info
The project to be completed is located within the Gualala River watershed, approximately 8.7 miles west of the town of Yorkville, County of Mendocino, State of California.
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
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
No
(5) A Statement of Overriding Considerations was adopted for this project
No
(6) Findings were made pursuant to the provisions of CEQA
No
Attachments
Notice of Determination
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