Viejas Boulevard Bridge Replacement Project

4 Documents in Project

Summary

SCH Number
2002031088
Lead Agency
San Diego County
Document Title
Viejas Boulevard Bridge Replacement Project
Document Type
NOD - Notice of Determination
Received
Posted
7/5/2006
Present Land Use
County right-of-way

Document Description
The California Department of Fish and Game is executing a Lake and Streambed Alteration Agreement number 1600-2003-0141-R5 pursuant to Section 1602 of the Fish and Game Code to the project applicant, County of San Diego, Department of Public Works. The applicant proposes to alter the stream to replace the existing bridge where Viejas Boulevard crosses the Sweetwater River. The planned bridge will span 120 feet and be supported by two abutments spaced 125 feet apart. The north abutment will be 14 feet north of the existing abutment and the south abutment will be 26 feet south of the existing abutment. The south side of the Sweetwater River Channel will be widened at the proposed bridge site to accommodate the new position of the abutment and allow for Q100 flood passage. Excavation for lengthening the bridge and channel grading of the streambed upstream and downstream of the bridge to accommodate the 100-year flood will be 4,800 cubic yards. There will be 412 cubic yards of structural backfill and 901 cubic yards of structural concrete for the bridge footing. The deck will be concrete and 45.5 feet wide with two travel lanes, shoulder lanes, and a pedestrian walkway separated by an inboard railing. The planned bridge will be located in the same location and alignment as the existing bridge, with no increase in vehicle capacity. To maintain access across the Sweetwater River during construction, traffic will be rerouted onto a temporary detour road to be constructed east (downstream) of the existing bridge using temporary fill. Three temporary culverts will be installed underneath the detour road to direct stream-flow and to allow for the movement of wildlife through the construction area. The culverts will be 8 feet in diameter with a 3-foot soft bottom sand base. Silt fencing and directional snow fencing will be installed to guide wildlife away from the roadway and through the crossings. The detour road will be removed upon completion of the bridge and the entire construction area will be restored and revegetated to pre-construction conditions. Native riparian habitats found on site include: southern willow scrub, southern coast live oak riparian forest, open water, and floodway.

Contact Information
Kelly Fisher
California Department of Fish and Game
4949 Viewridge Avenue
San Diego, CA 92123

Phone : (858) 467-4207

Location

Counties
San Diego
Regions
Unincorporated
Cross Streets
Viejas Boulevard and River Street
Zip
91916
Total Acres
4.538
State Highways
SR79
Schools
Descanso Elem
Waterways
Sweetwater River
Township
15S
Range
4E
Section
19
Base
SBM
Other Location Info
Community: Descanso

Notice of Determination

Approving Agency
California Department of Fish and Game
Approving Agency Role
Responsible Agency
Approved On
Final Environmental Document Available at
County of San Diego, DPW, MS 0385 5469 Kearny Villa Road, Suite 305 San Diego, CA 92123

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
No

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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