San Gabriel River 1 (SGR1) Levee System

Sample Unwanted Vegetation Growth

Looking upstream from College Park Drive

Unwanted vegetation on the riverside slope of the levee

Looking downstream from the upper end of SBC Reach 115 SGR - view of the channel’s west bank.

San Gabriel River 1 Levee SystemAerial View of Vegetation Deficiencies

Proposed Vegetation Removal Methodology

Completed Permitting Tasks

A. Collaborated with CDFW, RWQCB, COE, and Coastal Commission.

B. Completed all required biological, cultural, and fish studies/surveys

C. Conducted site visits with State and Federal Regulators.

D. Negotiated Scope of Work

a. Remove non-native vegetation and trees; protect and leave marshland vegetation

b. Install silt skirts/fences and other BMPsc. Heavy equipment to stay on top of the levee; pull out trees and

vegetation from top of levee; fill and compact void using similar or native soil.

d. Remove tree limbs/branches using hand tools.

e. Restore displaced rip-rap to match existing conditions.

Completed Permitting Tasks (Continued)

E. Finalized and submitted permit applications to CDFW, COE, and RWQCB

F. Provided responses to Agency “Requests for Information”

Pending Permitting Tasks

A. Waiting for draft permits from CDFW, RWQCB, & COE

B. Meeting with Coastal Commission on 4/29/15

Timeline to obtaining ALL required environmental Permits

More than 6 Months