Piper Road Culvert Replacement, Project #WO6243, and CP#21-23
Summary
SCH Number
2025031092
Public Agency
Contra Costa County
Document Title
Piper Road Culvert Replacement, Project #WO6243, and CP#21-23
Document Type
NOE - Notice of Exemption
Received
Posted
3/26/2025
Document Description
The purpose of the project is to replace a failing culvert beneath Piper Road with a new culvert and to repair the roadway. The existing culvert is 52-inch high x 40-inch wide corrugated steel pipe arch that will be replaced with a 54-inch diameter reinforced concrete pipe and two concrete flared ends. The culvert conveys flows from an artificial drainage ditch. The project will generally consist of trench excavation and backfill, removal of existing pipe, placement of new pipe, placement of rock slope protection, placement of trash racks, placement of aggregate base and asphalt pavement, and delineators and striping. The ditch in the immediate vicinity of the culvert replacement will be dewatered prior to construction. Excavations up to approximately 12 feet in depth are anticipated for the culvert replacement. All heavy machinery will be operated from the existing roadway. All equipment will be operated from the top of the ditch embankment.
At least one lane will remain open at all times and emergency vehicles will have access at all times. Real Estate transactions, including right-of-way acquisition, may be necessary. Utility relocation, temporary traffic control, and vegetation trimming and removal may be necessary. No night or weekend work is anticipated. Construction is anticipated to begin in summer of 2026 and take approximately 5 weeks to complete.
Contact Information
Name
Sandeep Kajla
Agency Name
Contra Costa County Public Works Department
Job Title
Environmental Analyst
Contact Types
Project Applicant
Phone
Name
Syd Sotoodeh
Agency Name
Contra Costa County Department of Conservation and Development
Job Title
Senior Planner
Contact Types
Lead/Public Agency
Address
Phone
Location
Cities
Unincorporated Bethel Island
Counties
Contra Costa
Regions
Unincorporated
Cross Streets
Piper Road, 475 feet north of its intersection with Gateway Road
Parcel #
029-050-014, 029-060-022, 030-130-006, and 030-130-012
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
15301(c)
Reasons for Exemption
The activity/project consists of the replacement of an existing culvert and repair/reconstruction of the existing roadway with no expansion of use pursuant to Article 19, Section 15301(c) of the CEQA Guidelines.
County Clerk
Contra Costa
Attachments
Notice of Exemption
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