1R680: Emergency Slope, Roadway, and Drainage Repairs


SCH Number
Public Agency
California Department of Transportation, District 10 (DOT)
Document Title
1R680: Emergency Slope, Roadway, and Drainage Repairs
Document Type
NOE - Notice of Exemption
Document Description
The California Department of Transportation (Caltrans) proposes an emergency project to address multiple mudslides and flood damages on State Route (SR) 120 at Post Miles (PM) 48.0, 51.3, and 53.5 in Tuolumne County. At PM 48.0 the scope of work includes unplugging debris from the culvert inlet, placing Rock Slope Protection (RSP), installation of a new overflow pipe, and repairing the damaged roadway. At PM 51.3 the scope of work includes re-establishing the eroded embankment, repairing the damaged shoulder and westbound travel lane, and RSP placement. At PM 53.5 the scope of work includes replacing the existing 18” Corrugated Metal Pipe (CMP) with a new 18” CMP, RSP placement, and installing new asphalt dike. The purpose of this project is to immediately rectify structural and drainage damages caused by the extreme storm events. The project is needed to prevent the loss or impairment of life, property, or essential public services.

Contact Information

Elizabeth Hummel
Agency Name
Job Title
Environmental Branch Chief
Contact Types
Lead/Public Agency


Northern California
State Highways
State Route (SR) 120

Notice of Exemption

Exempt Status
Declared Emergency
Type, Section or Code
Sec. 21080(b)(3); 15269(a)
Reasons for Exemption
Specific actions necessary to prevent or mitigate an emergency.
County Clerk


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