Route 91 Widening Project

SCH Number: 2008121122
Lead Agency: Caltrans 12 (Santa Ana) (California Department of Transportation, District 12)
Document Title: Route 91 Widening Project
Document Type: NOD - Notice of Determination
Received: 11/2/2010

Document Description: The proposed project consists of improvements to SR-91 in Orange County by adding one general-purpose lane on SR-91 eastbound from the SR-91/SR-55 (PM 9.1) separation to east of the Weir Canyon Road on-ramp (PM 15.0), and on SR-91 westbound from west of the SR-91/SR-241 separation (PM 15.1) to the SR-90/SR-91 separation (Imperial Highway Undercrossing(PM11.1)). The project would relive congestion and improve operational efficiency on SR-91 between SR-55 and west of SR-241. The total length of the project is 6.0 miles. The project will extend existing culverts associated with the roadway widening. A total of 4,400 cubic yards of roadway backfill will be used to fill existing earthen, asphalt and concrete ditches and replace them with .0575 acres of bioswale and/or bioswale and pipe combinations. The path of flow will not change. Measures have been included in Streambed Alteration Agreement 1600-2010-0194-R5, issued by the Department of Fish and Game (DFG), to avoid these potential impacts.

Contact Information: Tim Dillingham
Fish and Game
4949 Viewridge Ave
San Diego, CA 92123
858-467-4250

Approving Agency: DFG
Approving Agency Role: Responsible Agency
Approved On: 11/1/2010
Final EIR Available Location: Caltrans 3337 Michelson Drive, Suite 300 Irvine, CA 92612

(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 Negative Declaration was prepared for this project pursuant to the provisions of CEQA: Yes
(3) Mitigated measures were made a condition of the approval of the project: Yes
(4) A Statement of Overriding Considerations was adopted for this project: No
(5) Findings were made pursuant to the provisions of CEQA: No