Dry Creek (Zone 5 Line L) Restoration 630 feet Downstream of Railroad Avenue in Union City
Summary
SCH Number
2024081306
Public Agency
Alameda County Flood Control and Water Conservation District
Document Title
Dry Creek (Zone 5 Line L) Restoration 630 feet Downstream of Railroad Avenue in Union City
Document Type
NOE - Notice of Exemption
Received
Posted
8/29/2024
Document Description
The Alameda County Flood Control and Water Conservation District (District) proposes to repair a portion of Dry Creek (District Zone 5, Line L), located 630 feet downstream of Railroad Avenue, between the Bay Area Rapid Transit (BART) tracks and Union Pacific Railroad (UPRR) tracks in Union City, Alameda County. The project involves restoring an approximately 275-foot-long section of the trapezoidal earthen channel close to its original condition, mitigating further erosion and sedimentation. Approximately 885 cubic yards (CY) of soil will be excavated with approximately 235 CY of soils to be reused in backfill and vegetated soil lifts. Excess excavated soils will be removed and disposed of offsite. Approximately 60 CY of rock-slope toe protection (RSP) would be installed along approximately 50 linear feet of the west bank. Approximately 45 CY of the existing RSP adjacent to the concrete apron with cutoff wall near the UPRR tracks will be removed, salvaged, and reused for a flow dissipation band upstream of the concrete apron. Additionally, the existing gravel maintenance access road along the west side of the bank would be resurfaced with aggregate base. All disturbed areas will be restored by hydroseeding with a local seed mix and planting new native vegetation. The purpose of the project is to repair the eroded creek bank to prevent further erosion and restore the creek close to its original design section to maintain the capacity to contain and convey 100-year design storm flows.
Contact Information
Name
Moses Tsang
Agency Name
Alameda County Flood Control and Water Conservation District
Job Title
Deputy Director of Flood Control
Contact Types
Lead/Public Agency
Phone
Email
Location
Cities
Union City
Counties
Alameda
Regions
Citywide
Other Location Info
Approximately 630 feet downstream of Railroad Avenue, between BART and UPRR tracks
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
Class 1, Section 15301
Reasons for Exemption
The proposed project involves the repair, maintenance, or minor alteration of existing structures and facilities involving negligible expansion of use beyond that existing at the time of the lead agency’s determination.
County Clerk
Alameda
Attachments
Notice of Exemption
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