State Route 1/84 Structures and Scour Mitigation Project
4 Documents in Project
Summary
SCH Number
2020070177
Lead Agency
California Department of Transportation, District 4
(DOT)
Document Title
State Route 1/84 Structures and Scour Mitigation Project
Document Type
NOD - Notice of Determination
Received
Posted
5/6/2021
Document Description
The California Department of Transportation (Caltrans) District 4 proposes to protect the Pilarcitos Creek Bridges on State Route 1, post mile 28.92, and the San Gregorio Creek Bridge on State Route 84, post mile 7.55. The bridges will be protected from scour by placing partially grouted rock slope protection (RSP). At the Pilarcitos Creek Bridges, an existing log jam will be removed and partially grouted RSP will be placed around piers of the northbound and southbound bridges and will replace the earth stream bank, and slope, between Pilarcitos Creek and the northern abutments of both bridges. The existing public trail along the north bank of Pilarcitos Creek will be removed during construction and replaced in kind at project completion. At the San Gregorio Creek Bridge, partially grouted RSP will be placed under the west end of the bridge along the slope between Pier 2 and Abutment 1 to restore the slope to a ratio no steeper than 1.5 horizontal to 1.0 vertical; and to construct a key around Pier 2 that will be filled with partially grouted RSP to protect the pier from erosion.
Contact Information
Name
Zachary Gifford
Agency Name
Caltrans, District 4
Contact Types
Lead/Public Agency
Phone
Name
Tanvi Gupta
Agency Name
Caltrans, District 4
Contact Types
Lead/Public Agency
Phone
Email
Location
Cities
Half Moon Bay, San Mateo
Counties
San Mateo
Regions
San Francisco Bay Area
State Highways
State Route 1 and State Route 84
Other Location Info
Postmile 28.9 and Postmile 7.55
Notice of Determination
Approving Agency
Caltrans, District 4
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
Yes
(4) A mitigation reporting or monitoring plan was adopted for this project
No
(5) A Statement of Overriding Considerations was adopted for this project
No
(6) Findings were made pursuant to the provisions of CEQA
No
Attachments
Notice of Determination
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