Lower Silver Creek and Dobern Pedestrian Bridge work continues this summer
(April 2016) - Construction on the Lower Silver Creek Flood Protection Project takes place this summer at several locations in east San José from Interstate 680/Jackson Avenue to Story Road and Moss Point Drive to Cunningham Avenue. Construction begins in early May and runs through December.
Residents will see frequent trucks from Jackson Avenue to Story Road as workers repair the existing maintenance road to improve equipment access along the creek area and remove sediment from the creek bed between Interstate 680 to Story Road to help the creek maintain its capacity to carry water flows (click on map to right and see green line).
Work from Moss Point Drive to Cunningham Avenue includes creek widening and construction of ramps and floodwalls. Anti-graffiti coating on the floodwalls is also planned for this season.
PG&E and the water district will provide advance notice of electrical shutdowns planned at various locations from Moss Point Drive to Ocala Avenue to construct floodwalls (click on map to right and see orange line).
Construction work hours are 8 a.m. to 5 p.m., Monday through Friday, with occasional Saturday work. Expect typical construction noise during work hours as trucks and crews access the creek. Truck hauling will occur only between the hours of 9 a.m. and 4 p.m.
Equipment can include backhoes, excavators, jackhammers, compactors, loaders, dump trucks, drill rigs, pumps, portable sediment and/or water basins, and concrete pump trucks. The contractor may use a generator to power the pumps that will pump water around the project site and back into the creek farther downstream. Expect typical construction conditions such as noise, dust, roadway traffic, lane reductions and truck traffic.
In addition, work between Moss Point to Cunningham Avenue may require temporary lane and sidewalk closures at Moss Point Drive, Ocala Avenue and Cunningham Avenue through December 2016.The water district will use traffic controls or flaggers, as needed, during the day to maintain public safety.
The water district will use best management practices to minimize disturbance to the surrounding neighborhoods.
Dobern Pedestrian Bridge
The raising of the Dobern Pedestrian Bridge and completion of the floodwalls near the bridge is scheduled to begin late June. This includes the temporary bridge closure for the summer months. In anticipation of potential heavy El Niño rains last winter, the gap in the existing floodwalls was temporarily plugged with the installation of Super Sacks to reduce flooding risks (see photo below). Once work begins, the Super Sacks will be removed.
Work will take approximately six months and is expected to be complete by the end of the year. Project work hours will be 8 a.m. to 5 p.m., Monday through Friday. In the unlikely event of delays, work hours may include Saturdays.
A six- to ten-person crew will work at the project site using similar equipment as previously listed. Expect typical construction noise during work hours. Trucks and crews will access the site at Jackson Avenue. Expect no road closures, but traffic control or flaggers may be needed at times for safety.
The Dobern Pedestrian Bridge will be closed for the summer months with the intention to re-open to the neighborhood in time for the Fall school year.
For your safety, please stay away from the construction area and use alternate routes posted on fences to reach the other side of the neighborhood. Alternate routes are highlighted in purple on the map to the right.
For more information on this project, contact Ed Morales at (408) 630-2880 or Project Engineer, Patrick Stanton at (408) 630-2029.
You can also use “Access Valley Water” to submit questions, complains or compliments directly from your computer to a water district staff person who can help you. Click on the "Projects or work going on in my neighborhood" tab and select "Lower Silver Creek Flood Protection Project".
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Your Recovery Act tax dollars and a CA State Bond at work
The Santa Clara Valley Water District and Natural Resources Conservation Service (NRCS) have been working on a multi-purpose project along Lower Silver Creek to protect nearly 3,800 homes and businesses from a 100-year flood event. In spring 2009, some Lower Silver Creek Flood Protection Project improvements were identified as “shovel-ready” projects and were approved to receive $18 million in federal economic stimulus funds as part of the American Recovery and Reinvestment Act. Recently, we received word that the project will receive another $2.2 million from ARRA, bringing the total to $20.7 million. This new infusion of these funds helped complete the project from Interstate 680 to the Lyndale neighborhood.
In late 2011, the Santa Clara Valley Water District was awarded a California State Dept. of Water Resources grant which will fund the completion of this project through Lake Cunningham. The $25 million state grant will fund the completion of flood walls and vegetation work up to Lake Cunningham. The grant will also fund the design and construction of the final phase of the Lower Silver Creek Flood Protection Project through the Lake Cunningham area. The completion of this final phase of flood protection work will prevent flood waters from a 1% flood event (also known as a 100-year flood) from leaving the creek and flooding streets and homes in the current flood hazard area and will remove the mandatory flood insurance requirement for this neighborhood.
The project encompasses multiple segments, referred to as “Reaches”. Improvements for Reaches 1, 2, and 3 (from Coyote Creek to Interstate 680) were completed in 2006. Over the past 50 years, Lower Silver Creek has experienced severe flooding that resulted in damage to residential, commercial and industrial properties.
Reach 6 construction (2009)
The first phase of construction began in late August 2009 and continued through October on either side of Ocala Ave.
as trucks enter
grasses taking root
on new banks.
Reach 4 and 5 construction (2010 through 2012) The second phase of the project includes the widening of the creek channel and the addition of concrete flood walls from Interstate 680 through the Dobern and Lyndale neighborhoods. This section also required the rebuilding of two major bridges at Capitol Expressway and Jackson Ave.
Traffic control will be provided, and flaggers will be onsite during work hours to ensure everyone’s safety. Equipment used will include excavators, bulldozers, loaders, scrapers, jack hammers, small cranes and dump and transportation trucks. Typical construction noise can be expected during work hours.
Flood protection project commended in federal report
The White House recently released Vice President Joe Biden’s list of 100 significant stimulus projects from across the United States. The Lower Silver Creek Flood Protection Project, which is a joint project between the NRCS and the district, was a significant local feature on this celebrated list of stimulus fund accomplishments.
The entire report is available for download here. (Vice President Joe Biden's list of 100 significant stimulus projects)
Groundbreaking Ceremony Aug. 27 photos and a short video.
Groundbreaking Ceremony invitation
Construction Progress Sept. 2009 photos
Design Proposals for Reach 4 and 5 Meeting displays for 4b, Meeting display for 4c and meeting display for 5
Our partners for this project:
Natural Resources Conservation Service
American Recovery and Reinvestment Act
ARRA Certification: Section 1511