Flood Control Zone 3A
Zone 3A at a Glance
Communities served: Union City, portions of Hayward, Hillview, Fairview, Valle Vista,
Tennyson, Mt. Eden, Highland, Alvarado, and Baumberg.
Area in acres: 19,700 for Zones 3A and 4 combined
Creeks: Ward Creek, Zeile Creek, Mt. Eden Creek, and old Alameda Creek
Total miles of natural creek: 21
Drainage Canals: The Alameda Flood Control Channel
Total miles of earth channel: 20
Total miles of concrete channel: 5
Total miles of underground pipe: 43
Pump stations: Eden Landing, Ruus Road, Besco, Westview, Alvarado, Industrial, Ameron, Stratford, and Eden Shores.
Zone 3A Hydrology
Creeks flow from hills east of California State University, East Bay into the City of Hayward. The water then flows in underground stormwater drains and manmade open channels into Mt. Eden Creek and Old Alameda Creek en route to San Francisco Bay.
Zone 3A Major Projects
Improving the Levees
Levees along channels in this zone require significant upkeep. The District is working on a major project to repair and raise the levee along Line A from Hesperian Boulevard to I-880. Construction on this $930,000 project began as fiscal year 2006 and will be completed in fiscal year 2007.
Where feasible, the District designs flood control features to withstand a 100-year storm—a storm so severe that it occurs, statistically, once every 100 years. The levee upgrade project in Zone 3A meets this high level.
New and Ongoing Projects in Zone 3A
- Line A-5 Industrial Parkway to Catalpa pending watershed study results
Prime Pumps
There are nine pump stations in Zone 3A: Eden Landing, Ruus Road, Besco, Westview, Alvarado, Industrial, Ameron, Stratford, and Eden Shores. In some low–lying areas, stormwater is collected in storm drains and pumped into flood control channels where the water then flows into the Bay. That makes the pump stations a critical part of the District's system to reduce flood hazards in Zone 3A.
As of 2005, all nine pumps function with state-of-the-art technology called Supervisory Control and Data Acquisition (SCADA) which allows District staff to monitor station operations from remote locations so they can maximize the performance of each pump station.
For more information about the history of projects undertaken in Zone 3A, please view the District’s Annual Reports.