Interstate 280 Repair Pipe System and Backfill Sinkhole
3 Documents in Project
Summary
SCH Number
2013102038
Lead Agency
California Department of Transportation, District 6
Document Title
Interstate 280 Repair Pipe System and Backfill Sinkhole
Document Type
NOD - Notice of Determination
Received
Posted
1/26/2015
Present Land Use
Grassland/urban Open space area
Document Description
The California Department of Transportation (Caltrans) proposes to replace a failed drainage pipe west of Interstate 280 at post mile 9.4. The 60-inch corrugated metal pipe, which has failed along a portion of its length, has created a sinkhole sufficiently large enough to begin impacting an existing maintenance access road and supporting fill slope of Interstate 280. The sinkhole continues to pipe debris and material during rain events into Lower Crystal Springs Reservoir, a San Francisco Public Utility Commission drinking water source. The failed pipe was spot-repaired and the sinkhole backfilled in an emergency maintenance activity in October and November of 2013.
Contact Information
Name
Yolanda Rivas
Agency Name
Caltrans District 4
Contact Types
Lead/Public Agency
Address
Phone
Location
Coordinates
Cities
Belmont
Counties
San Mateo
Waterways
Lower Crystal Springs Reservoir
Notice of Determination
Approving Agency
Caltrans
Approving Agency Role
Lead Agency
Approved On
Determinations
(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 Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
Yes
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
No
(3) Mitigated measures were made a condition of the approval of the project
No
(4) A mitigation reporting or monitoring plan was adopted for this project
N/A
(5) A Statement of Overriding Considerations was adopted for this project
No
(6) Findings were made pursuant to the provisions of CEQA
Yes
Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613.