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The Alameda County Water District today
dedicated two fish passage facilities that will improve steelhead trout
migration in Alameda Creek. Steelhead trout are listed by the federal
government as a threatened species.
The first facility, the Bunting Pond Fish Screen, will prevent steelhead
from being carried into ACWD’s diversion pipelines and adjacent
groundwater recharge ponds at Quarry Lakes Regional Recreation Area. The
second, the Rubber Dam Number Two Fish Passage Facility project,
consisted of the decommissioning and removal of the dam and the creation
of a notch in its concrete base to allow both upstream and downstream
passage by steelhead.
Alameda Creek once supported runs of steelhead, and although early data
is not available, accounts by locals indicate that steelhead numbering
in the thousands once annually ascended its waterways. Steelhead fishing
was common on the creek until about four decades ago. By the late 1950s,
though, the California Department of Fish and Game had decided the
steelhead run was no longer viable.
A series of floods in the 1950s prompted the channelization of the lower
creek by the Army Corps of Engineers and by the early 1970s numerous
fish passage barriers had been installed along the lower 12 miles of the
creek that effectively closed the door on already dwindling anadromous
fish runs. The last steelhead trout and coho salmon runs were seen in
the lower creek in 1963 and 1964. Subsequent flood control and water
supply projects in the creek did not allow for migratory fish passage.
In an effort to restore steelhead to the watershed, the Alameda Creek
Fisheries Workgroup was created in 1999. The Workgroup consists of
government and non-government stakeholders and was tasked with
developing and implementing a strategy to restore steelhead to Alameda
Creek. Over the past 11 years, the Workgroup has proposed dam removals,
construction of fish ladders at in-stream barriers, installation of fish
screens at water diversions, and habitat enhancements.
Several restoration projects have already
been completed. The San Francisco Public Utilities Commission removed
Niles Dam and the Sunol Dam in Niles Canyon in 2006. In 2003, Zone 7
Water Agency constructed two fish ladders at the confluence of Arroyo
Mocho and Arroyo Las Positas in Livermore. In 2001, the East Bay
Regional Park District removed two swim dams from Alameda Creek in Sunol
Regional Park. And in 2008, the Alameda County Water District installed
four fish screens in the flood control channel near the Mission
Boulevard overcrossing.
The most recently completed projects were ACWD’s Bunting Pond Fish
Screen and the Rubber Dam Number Two Fish Passage Facility. The rubber
dam project is notable in that it included the removal of the dam, an
ACWD water supply facility. After careful deliberation, it was decided
that the dam had reached the end of its useful life and that ACWD would
be able to adequately supply its customers with water with its newer
facilities.
ACWD is planning other fish passage improvements in Alameda Creek as
well, including fish ladders at its remaining two rubber dams and
additional fish screens at other water diversions. The goal of these
improvements is to create a safe pathway through the flood control
channel that will allow steelhead to access the upper watershed for
spawning and rearing.
“These projects will improve fish migration in Alameda Creek, and are
also an important part of the restoration and recovery of steelhead
trout in the greater Bay Area,” said Jeff Miller, Director of the
Alameda Creek Alliance. “The water district is to be commended for their
leadership on restoring Alameda Creek.”
“Funding projects such as these can be quite challenging,” noted Walt
Wadlow, ACWD General Manager at the dedication ceremony today. He went
on to say, however, that ACWD was fortunate to receive $500,000 from the
National Fish and Wildlife Foundation for the removal of the rubber dam
and a $600,000 grant through Proposition 50 for the Bunting Fish Screen
Project.
Total cost for the fabrication and construction of the Bunting Pond Fish
Screen was approximately $1.2 million. Total cost for the
decommissioning of the rubber dam and the notching of the concrete base
was approximately $1.1 million.
Speaking at today’s ceremony were ACWD General Manager Walt Wadlow, ACWD
Board President Marty Koller, Katie Tague from Senator Ellen Corbett’s
office, Chief of Staff of Supervisor Haggerty’s office Chris Gray, and
Alameda Creek Alliance Chairman Jeff Miller.
Contact:
Frank Jahn
510-668-4209 |