Santa Clara Valley Water District Neighborhood work Permanente Diversion Channel Sediment Removal Project About the project A five person crew will work at the project site using crew trucks, dump trucks, a loader and an excavator. Expect typical construction noise during work hours. A private security firm contracted by the water district may also be on site. Trucks and crews will access the creek at Altamead Drive. No road closures are expected, but traffic control may be needed at times. If needed, flaggers will be onsite during the project for safety. Part of the voter-approved Clean, Safe Creeks and Natural Flood Protection Plan, this project will remove an estimated 240 cubic yards of sediment, enough to fill 30 dump trucks. Securing banks protects homes and property along the creek, while maintaining a stable creek ecosystem. It also minimizes sediment build-up, improving the creek’s capacity to carry floodwaters. Sediment removal is important to maintain the creek’s capacity to carry floodwaters away from nearby homes and property. Miramonte Ave Project Area and equipment availability. Permanente Diversion Channel Altamead Dr Los Altos Bryant Ave Portland Ave Circle indicates project area. Inset: Sediment build-up along Permanente Creek Diversion Channel. Why remove sediment? Water flowing in a creek or river picks up and carries fine grains of soil, rock or mineral called sediment. When the flowing water slows down or reaches a wide or flat area, the sediment “drops out” and deposits into the stream bed. This can clog the creek, reducing the amount of water it can transport. Sediment fills the underwater spaces around rocks, fallen tree trunks and branches, eliminating places where fish and other species seek food and shelter. continued on back... * Project start dates and duration may vary due to site conditions Grant Rd Work will start in mid August and take approximately three days to complete.* Project work hours are 8 a.m. to 4 p.m., Monday through Friday. In the unlikely event of delays, work hours may extend to include some work on Saturdays. N Levin Ave Covington Rd Permanente Creek The Santa Clara Valley Water District will remove sediment from the Permanente Diversion Channel west of Grant Road near the maintenance ramps where sediment tends to build up. Eunice Ave Mountain View What we do The Santa Clara Valley Water District manages water resources and provides stewardship for the county’s five watersheds, including 10 reservoirs, hundreds of miles of streams and groundwater basins. The water district also provides flood protection throughout Santa Clara County. You’re in a watershed No matter where you are, you’re in a watershed. A watershed is the area of land that drains a common waterway. In Santa Clara County, our creeks catch rain and runoff from storm drains and carry the water north to San Francisco Bay or south to Monterey Bay. Along the way, some of the water fills reservoirs for drinking water, replenishes the underground aquifer and creates better habitat for fish and wildlife. This project is in the Lower Peninsula Watershed. Lower Peninsula Watersheds Drains to Alameda County West Valley Watersheds Guadalupe Watershed Coyote Watershed Contact us Uvas/Llagas Watersheds Your Clean, Safe Creeks vote at work The voter-approved Clean, Safe Creeks and Natural Flood Protection parcel tax passed in November 2000 funds this project. The 15-year plan makes it possible to protect homes, schools and businesses from flooding, while improving the health of creek and bay ecosystems, and creating trails and parks for recreational enjoyment. Fight West Nile Virus Target the source. Dump standing water. For more information, visit Santa Clara County Vector Control District’s website at www.sccvector.org, or call the West Nile Virus Hotline at 1-800-314-2427. For more information, contact Chad Grande at (408) 265-2607, ext. 2915, or visit our website at www.valleywater.org and use our Access Valley Water customer request and information system. With three easy steps, you can use this service to find out the latest information on the project or to submit questions, complaints or compliments directly to a district staff person. © 2010 Santa Clara Valley Water District • 08/20/10 182 EM
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