Streambed Alteration Agreement Concerning Lemon Creek (R5-2001-0224)

Summary

SCH Number
2001108205
Public Agency
Fish & Game #5
Document Title
Streambed Alteration Agreement Concerning Lemon Creek (R5-2001-0224)
Document Type
NOE - Notice of Exemption
Received
Posted
10/9/2001

Document Description
The Operator proposes to alter the banks of a streambed to repair a damaged outlet structure on the bank of Lemon Creek. During the storm of February, 1998, the flood waters eroded the left bank and base of the outlet structure for the storm drain from Tract 31337. This erosion caused the collapse of the outlet structure. The stabilization of the left bank will be performed by temporarily cutting the bank back approximately ten feet and constructing a gabion block retaining wall. After the construction of the gabion retaining wall, the bank will be backfilled to its existing location. The outlet structure will be reconstructed with 24" RCP stormdrain pipe. The 12' by 12' rip rap pad will be constructed of gabion blocks. The construction of these repairs will require the use of standard grading and construction machinery. Vehicular access to the worksite will be via the equestrian/hiking trail on the southeast side of the stream. Areas of the project that will result in disturbance or removal of vegetation will be re-seeded with native species using the hydro-seed method. The banks of Lemon Creek in the vicinity of the project site are vegetated with southern willow scrub, dominated by willows (Salix spp.), mule fat (Baccharis salicifolia), and some southern Califorina black walnut (Juglans californica californica).

Contact Information
Brad Henderson
Department of Fish and Game, Region 5
Lead/Public Agency
4949 Viewridge Avenue
San Diego, CA 92123

Phone : (310) 214-9950

Location

Cities
Walnut
Counties
Los Angeles

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Article 19, Section 15302 (c)
Reasons for Exemption
The undercut slope and storm outlet structure will be rebuilt with negligible expansion on the bank of the stream to accommodate the grading necessary to repair the slope.

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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