Floodwall Improvements Along Zone 3A Line D Phase II
NOD - Notice of Determination
The Alameda County Flood Control and Water Conservation District is proposing to install floodwalls along approximately 1,630 linear feet of the Zone 3A, Line D channel (Ward Creek) between Huntwood Avenue and the Union Pacific Railroad tracks, and parallel to Industrial Parkway West, in Hayward, California. The proposed project is Phase II of a four-phase plan to improve channel capacity between the I-880 freeway downstream and the BART tracks upstream. Phase I consist of the construction of floodwalls constructed downstream of Huntwood Avenue along 3500 linear feet of channel, and was completed in 2011. The currently proposed floodwalls would be similar to those in the Phase I project. The concrete masonry unit floodwalls would be constructed at the top of both banks. Minor work within the channel flow line would consist of the reconstruction of four outfall structures within the channel banks to install flap gates and construction of a low flow ramp adjacent to Huntwood Avenue to allow access to the channel for maintenance. An asphalt concrete pedestrian/bike path along the southwest bank would be removed and replaced in approximately the same location at the top of the bank.
(1) The project will have a significant impact on the environment
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
(3) Mitigated measures were made a condition of the approval of the project
(4) A mitigation reporting or monitoring plan was adopted for this project
(5) A Statement of Overriding Considerations was adopted for this project
(6) Findings were made pursuant to the provisions of CEQA
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