Old Mission Dam Maintenance Dredging

5 Documents in Project

Summary

SCH Number
1994041020
Lead Agency
City of San Diego
Document Title
Old Mission Dam Maintenance Dredging
Document Type
NOD - Notice of Determination
Received
Posted
7/26/2019
Document Description
CDFW is intending to execute a Lake and Streambed Alteration Agreement pursuant to Section 1602 of the Fish and Game Code (# 1600-2019-0078-R5) to the project applicant, City of San Diego. The project proposes annual vegetation removal in order to prevent the establishment of vegetation within the maintenance area and dredging on an as needed basis when there is at least 2 feet of sediment accumulation behind the dam. If water is flowing during a maintenance activity, temporary diversion structures will be installed upstream of the work area to divert the flow around the work area. Dredging will occur by staging a backhoe on an unvegetated sand bar to remove accumulated sediments from behind the dam and stockpile them on bare ground outside the river. A skid-steer/bobcat will then be used to move the material from the stockpile to a dump truck. This project is a continuation of activities previously authorized under Streambed Alteration Agreement R5-2002-0069, which has expired, and will be conducted within the same 0.53-acre footprint. In that previous Agreement, the impacts were considered permanent in anticipation of periodic disturbance from ongoing maintenance activities. and mitigated accordingly.

Contact Information

Name
Kelly Fisher
Agency Name
California Department of Fish and Wildlife (CDFW)
Contact Types
Lead/Public Agency

Name
Agency Name
City of San Diego
Contact Types
Project Applicant

Location

Cities
San Diego
Counties
San Diego
Parcel #
383-021-15 and 383-010-04
Township
15S
Range
2W
Base
SBM
Other Location Info
The project is located within the bed, channel, and bank of the San Diego River immediately upstream of the Old Mission Dam in the Mission Trails regional Park, in the City of San Diego, County of San Diego, State of California; U.S. Geological Survey (USGS) map La Mesa quadrangle; Calwater 4907.120000.

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
Yes
(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

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