Mount Diablo State Park Auto Gate Openers
Summary
SCH Number
2025080472
Public Agency
California Department of Parks and Recreation
Document Title
Mount Diablo State Park Auto Gate Openers
Document Type
NOE - Notice of Exemption
Received
Posted
8/12/2025
Document Description
The purpose of this project is to install automatic gate openers at 3 visitor entrances at Mount Diablo State Park to ensure public access during park open hours regardless of staff availability. Work will:
At the Mitchell Canyon Day Use and Sector Entrances:
Use a gas-powered auger to dig 36-inch-deep x 8-inch in diameter holes;
Set 12-foot x 1.5-inch poles 36-inches below grade and backfill with concrete;
Use heavy equipment to excavate a 16-inch-wide x 36-inch-deep x up to 30 foot long trench at Mitchell Canyon
Sector Office entrance gate and install an exit probe, then backfill with native material; and
Use hand-held power tools to cut the current gate from its post and re-weld to a 90-degree inbound swing.
At the Macedo Ranch Entrance:
Use a gas-powered auger to dig 36-inch-deep x 8-inch diameter holes;
Set 12-foot x 1.5-inch poles 36 inches below grade and backfill with concrete;
Use heavy equipment to excavate a 16-inch-wide x 36-inch deep x up to 30 foot long trench from swing post to
swing post; and
Install a 1-inch diameter PVC power conduit and backfill with native material.
At North Gate Day Use Entrance and Exit:
Use a gas-powered auger to dig 36-inch-deep x 8-inch diameter holes;
Set 12-foot x 1.5-inch poles 36 inches below grade and backfill with concrete; and
Re-connect gates.
Contact Information
Name
Gina Benigno
Agency Name
California State Parks, Diablo Range District
Job Title
District Environmental Coordinator
Contact Types
Lead/Public Agency
Phone
Location
Coordinates
Counties
Contra Costa
Regions
Northern California
Other Location Info
Mount Diablo State Park, 37.9218122733543, -121.94210838957397. 37.86214788231633, -121.97913552279725. 37.90220365472862, -121.99354158221003
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
15301 & 15304
Reasons for Exemption
Project consists of the operation, repair, maintenance, or minor alteration of existing public or private structures, facilities, mechanical equipment, or topographical features, involving negligible or no expansion of use beyond current levels and minor public or private alterations in the condition of land, water, and/or vegetation which do not involve removal of healthy, mature, scenic trees.
Attachments
Notice of Exemption
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