Omega Curves Correction

5 Documents in Project


SCH Number
Lead Agency
California Department of Transportation, District 3 (DOT)
Document Title
Omega Curves Correction
Document Type
NOD - Notice of Determination
Document Description
The Project is limited to improving two non-contiguous segments of the alignment of SR-20 by modifying the existing horizontal and vertical curves of the roadway and adding turnouts. This Project will update the roadway to current standards by increasing the curve radii, widening shoulders to eight (8) feet, adding turnouts for both directions, and improving the vertical profile grade. Additionally, this Project will improve the clear recovery zone by removing obstacles and flattening slopes close to the traveled way. Twelve new culverts and two wildlife crossings will also be installed under the roadway. Excavation, backfilling, grading, compacting, concrete work, and RSP placement will be done in the stream channels and their associated riparian habitat.

Contact Information

Harvey Tran
Agency Name
Department of Fish and Wildlife
Contact Types
Responsible Agency


Northern California
Other Location Info
The Project is located at two general curve locations on the State Route 20 (SR-20) in the County of Nevada, State of California. The post miles for this Project are NEV-20 PM 29.7 to 30.9 (White Cloud Curve) and PM 36.8 to 39.8 (Lowell Hill Curve).

Notice of Determination

Approving Agency
California Department of Fish and Wildlife
Approving Agency Role
Responsible Agency
Approved On
County Clerk
Final Environmental Document Available at
the office location listed above for the Lead Agency. CDFW’s record of Project approval as Responsible Agency is available at CDFW’s regional office.


(1) The project will have a significant impact on the environment
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
(3) Mitigated measures were made a condition of the approval of the project
(4) A mitigation reporting or monitoring plan was adopted for this project
(5) A Statement of Overriding Considerations was adopted for this project
(6) Findings were made pursuant to the provisions of CEQA


Notice of Determination

Disclaimer: The Governor’s Office of Planning and Research (OPR) accepts no responsibility for the content or accessibility of these documents. To obtain an attachment in a different format, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at or via phone at (916) 445-0613. For more information, please visit OPR’s Accessibility Site.

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