Bridge Seismic Restoration
Summary
SCH Number
2024041205
Public Agency
California Department of Transportation, District 4
(DOT)
Document Title
Bridge Seismic Restoration
Document Type
NOE - Notice of Exemption
Received
Posted
4/29/2024
Document Description
This project proposes to seismically retrofit the bridge and treat the deck surface with a polyester concrete overlay. The following actions would be needed:
•Welded steel casings are installed to the columns.
•Grout is injected from the bottom to the top of the columns.
•Remove the surface contaminants on the pavement.
•Roughen the deck surface and apply primer.
•Overlay the deck with polyester concrete.
•Restripe
•Geotechnical site investigation for the seismic retrofit of the NB I-280 to SB SR-1Connector bridge (3 out of 5 footings need to be retrofitted).
Contact Information
Name
Nina Hofmarcher
Agency Name
Caltrans Environmental Scientist
Job Title
Environmental Scientist
Contact Types
Lead/Public Agency / Project Applicant
Phone
Location
Cities
Daly City
Counties
San Mateo
Regions
San Francisco Bay Area
State Highways
280
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
1(d) 15301
Reasons for Exemption
Class 1 consists of the operation, repair, maintenance, permitting, leasing, licensing, or minor alteration of existing public or private structures, facilities, mechanical equipment, or topographical features, involving negligible or no expansion of existing or former use. This project involves the repair and maintenance of an existing structure within the Caltrans right of way.