Alleghany Road at Oregon Creek Bridge Rehabilitation (Lake or Streambed Alteration Agreement No. 1600-2015-0198-R2)

2 Documents in Project

Summary

SCH Number
2014012032
Lead Agency
Yuba County
Document Title
Alleghany Road at Oregon Creek Bridge Rehabilitation (Lake or Streambed Alteration Agreement No. 1600-2015-0198-R2)
Document Type
NOD - Notice of Determination
Received
Posted
5/23/2016
Present Land Use
Existing Bridge; A/RR; Natural Resources

Document Description
The project is limited to structural rehabilitation of the historic bridge over Oregon Creek, improvement of the road approach, and stabilization of the creek bank. The rehabilitation of the bridge will include the replacement of the bottom truss chords, all siding, the floor system, including steel floor beams, longitudinal stringers, transverse deck planks, deck runners and wheel guards, abutment timber sill plates supporting the trusses; repair of the "sheds" at each end of the bridge and the roadway erosion; and stabilization of the abutments. Bridge rehabilitation will require that the bridge will be completely disassembled. As part of the rehabilitation, the entire deck system will be replaced with in-kind materials, including the steel floor beams and timber stringers, deck planks, runners, and wheel guards. A support system will be constructed behind the existing abutment walls to stabilize the existing abutments. All staging of equipment and materials will take place in paved areas of the Oregon Creek Day Use Area at the project site. All rehabilitation work and road approach improvements will be conducted above the ordinary high water mark (OHWM) of Oregon Creek, and no dewatering will be required for the project site. All rehabilitation work and road approach improvements will be conducted above the ordinary high water mark (OHWM) of Oregon Creek, and no dewatering will be required for the project. The embankments adjacent to the abutments will be re-contoured and rock slope protection (RSP) will be placed on the downstream side of the bridge abutments, but nearly all of this bank stabilization will occur above the OHWM of Oregon Creek. The only instream work in Oregon Creek will be excavation of streambed and subsequent placement of 3 cubic yards (CY) of RSP within the OHWM channel near the toe of the abutments. This work will be done when flows are low. One CY of RSP will be placed in an erosional feature at the outfall of a culvert being replaced under Alleghany Road. The use of mechanized equipment to re-contour embankments, remove some of the upland riparian vegetation, and place RSP near the face of the abutments will result in temporary impacts on up to 0.010 acre of jurisdictional waters of Oregon Creek.

Contact Information
Tanya Sheya
CDFW
1701 Nimbus Road
Rancho Cordova, CA 95670

Phone : (916) 358-2953

Location

Coordinates
39°23'48"N 121°4'56"W
Counties
Yuba
Cross Streets
Alleghany Road & State Hwy Route 49
Zip
95922
Parcel #
064-270-006
State Highways
Hwy 49
Waterways
Oregon Creek
Township
18N
Range
8E
Section
28
Base
MDB&M
Other Location Info
Camptonville

Notice of Determination

Approving Agency
CDFW
Approving Agency Role
Responsible Agency
Approved On
Final Environmental Document Available at
1701 Nimbus Road, Rancho Cordova, CA 95670

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
N/A
(5) A Statement of Overriding Considerations was adopted for this project
No
(6) Findings were made pursuant to the provisions of CEQA
N/A

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.

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