SR-92 Drainage and Pavement Settlement Repair DO (EA 0V330)
Summary
SCH Number
2026050266
Public Agency
California Department of Transportation, District 4
(DOT)
Document Title
SR-92 Drainage and Pavement Settlement Repair DO (EA 0V330)
Document Type
NOE - Notice of Exemption
Received
Posted
5/7/2026
Document Description
Caltrans proposes repairing drainage and pavement settlement on SR-92 in San Mateo County at PM R12.59. Field Maintenance identified rough driving conditions and pavement settlement at the east approach to Bridge No. 35-0252L. The settlement was caused by stormwater infiltration undermining the roadway subbase. The pavement is settling across the full width of the highway, creating abrupt elevation changes experienced by motorists traveling through the area. The observed settlement ranges from approximately 0.5 to 4.0 inches and affects an area measuring approximately 48 feet by 24 feet.
The project will repair the pavement settlement by injecting polyurethane foam to lift the roadway to its original grade. The pavement will be ground and repaved. The 25-foot Hot Mix Asphalt (HMA) Dike – Type A will be reconstructed. The existing drainage inlet, 18-inch reinforced concrete pipe (RCP), and outfall area will be cleaned. Sandbags will be placed from the existing bridge barrier to the drainage inlet. Erosion control measures will be implemented.
Temporary traffic control will be required during construction activities.
Contact Information
Name
Juliane Smith
Agency Name
Caltrans
Job Title
Senior Environmental Scientist (NEPA/CEQA Specialist)
Contact Types
Lead/Public Agency / Project Applicant / Parties Undertaking Project
Address
Phone
Email
Location
Cities
San Mateo
Counties
San Mateo
Regions
Northern California, San Francisco Bay Area
State Highways
92
Other Location Info
The project is located on State Route (SR-) 92 in San Mateo County at post mile (PM) R12.59.
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
PRC 21084; 14 CCR 15301 Class 1
Reasons for Exemption
Class 1 Existing Facilities. The project is not anticipated to result in any environmental impacts. The project contains a number of standardized project measures which are employed on most, if not all, Caltrans projects and were not developed in response to any specific environmental impacts resulting from the project.
County Clerk
San Mateo
Attachments
Notice of Exemption
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