Award: Dam seismic retrofit challenge
Worth: $1.88 billion
Location: Santa Clara County, California
Shopper: Santa Clara Valley Water District
A California dam that faces threats from main earthquakes will quickly obtain upgrades.
The Santa Clara Valley Water District awarded a $1.88 billion contract to a JV of FlatironDragados and Sukut to finish the Anderson Dam Seismic Retrofit Mission, in line with a Tuesday announcement. The whole challenge will value $2.8 billion.
As a part of the challenge’s scope, the development group will rebuild many of the dam and spillway, set up new outlet pipes and whole different main protection upgrades, in line with the announcement. Building is predicted to start in 2027 and take seven years to finish.
Valley Water has finished many of the preparatory tasks to rebuild the dam, in line with the announcement. On the heart of that effort is the Anderson Dam Tunnel Mission, which replaces the dam’s present 4-foot-diameter outlet pipe with a 13-foot-diameter outlet and is predicted to complete later this yr.
Anderson Dam, which used to be at first in-built 1950, sits subsequent to Anderson Reservoir, the biggest of Valley Water’s 10 reservoirs. The reservoir is large sufficient to carry the contents of the opposite 9 inside of it, in line with the water authority. Then again, it’s been seriously restricted by way of issues of safety, and Anderson Reservoir is handiest working at 3% capability on account of seismic considerations, in line with Valley Water.
In 2017, water overflowing from Coyote Creek, which the dam regulates, contributed to widescale flooding within the San Jose area. That used to be the similar yr heavy rains led to an enormous hollow creating within the concrete spillway for Oroville Dam, which, like Anderson, is an earthen embankment construction. The eventual restore prices crowned $1 billion.
Nowadays, government have a garage restriction of about 55 toes beneath Anderson Dam’s crest to give protection to the general public in match of an earthquake, in line with Valley Water.
The Anderson Dam’s challenge development has been not on time up to now, in line with The Morgan Hill Occasions. Matt Keller, media & public members of the family manager at Valley Water, instructed Building Dive by means of e mail that delays had been the results of the federal environmental procedure, together with the Nationwide Environmental Coverage Act’s procedure for an environmental affect commentary.
“Rebuilding Anderson Dam is our most sensible precedence,” stated Tony Estremera, Valley Water board chair, within the announcement. “This milestone displays years of laborious paintings, collaboration, and perseverance by way of our body of workers, contractors, regulators, and group companions.”
The Anderson Dam challenge good points momentum as water tasks around the nation have surged all the way through the yr. The urge for food for water jobs will handiest develop because the Water Sources Construction Act, which handed the Space Committee on Transportation and Infrastructure previous this summer time, guarantees $30.5 billion for these kinds of tasks.
The JV contractors — FlatironDragados and Sukut Building — even have a historical past of collaboration. The corporations labored in combination ahead of Flatiron and Dragados merged in 2024 at the Lake Isabella challenge in Kern County, California.
