Elmhurst Creek (Zone 12 Line M) Restoration between Baldwin Street and Downstream of UPRR
Summary
SCH Number
2024070833
Public Agency
Alameda County Flood Control and Water Conservation District
Document Title
Elmhurst Creek (Zone 12 Line M) Restoration between Baldwin Street and Downstream of UPRR
Document Type
NOE - Notice of Exemption
Received
Posted
7/22/2024
Document Description
The Alameda County Flood Control and Water Conservation District (District) project proposes to improve Elmhurst Creek (District’s Zone 12 Line M) between Baldwin Street to downstream of the Union Pacific Railroad (UPRR), in Oakland. The existing 28-foot to 38-foot wide trapezoidal earthen channel, with approximately 15-foot wide bottom, will be converted to a uniform approximately 35-foot wide rectangular channel with earthen bottom. Reinforced concrete sheet pile walls will be installed along the existing top-of-bank, generally, on both sides of the channel. Downstream of the UPRR bridge and existing box culvert, an approximately 54-foot long concrete trapezoidal channel will be installed to transition between the existing box culvert and the rectangular channel. Additional work will include modifying two existing stormwater culvert outfalls to finish flush with the new sheet pile wall and fitted with new flap gates. There will be a net increase to aquatic habitat when the channel is converted from a trapezoidal channel to rectangular channel. The purpose of the project is to restore the channel and improve flood conveyance.
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
Oakland
Counties
Alameda
Regions
Citywide
Other Location Info
District's Zone 12 Line M flood control channel (Elmhurst Creek) between Baldwin Street and downstream of Union Pacific Railroad
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
Class 1, Section 15301
Reasons for Exemption
The proposed project consists of the operation, repair, maintenance, or minor alteration of existing structures or 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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