Controversial Klamath fish-screening project operational
for 2003 irrigation season
By Melody Finnemore
A controversial project that fired up the national debate
between farmer's water rights and the protection of endangered
fish is up and running for this year's irrigation season.
The new fish-screening system at the Klamath Reclamation
Project's A Canal is an important first step in solving ongoing
issues related to water allocations for the region's farmers
and the protection of endangered fish, according to authorities
at the federal Bureau of Reclamation, which administers the
region's water resources.
Slayden Construction Inc. of Stayton worked against time,
a difficult construction site and public scrutiny to finish
the $10.8 million project before April 1. The new A Canal
is located on Upper Klamath Lake where it meets the Link River,
about 2 miles northwest of downtown Klamath Falls.
"This project was really a unique challenge for us because
of the tight construction timeline, the restricted site and
the potential for winter weather that could have disrupted
the process," said Slayden President Todd Woodley. "Luckily,
the weather cooperated and we actually finished a few days
ahead of schedule."
Dennis Dorratcague, project manager for Montgomery Watson
Harza Inc., which partnered with Slayden on the effort, said
the firm initially designed the project to be completed by
July. However, U.S. Interior Secretary Gale Norton's resolution
that the A Canal be fully operational by April 1 meant designers
had to work extra hours.
The job involved replacing the 95-year-old headgates at the
A Canal with a new irrigation system that will prevent endangered
suckers from being killed in the canals. Slayden replaced
the worn steel and concrete structure with new headgates that
will block adult fish and debris.
Fine-meshed screens installed downstream will prevent sucker
larvae from entering the canals. Instead, a 24-in. bypass
pipe will carry them back to Klamath Lake.
Construction began in October with the demolition of the
old headgates and the excavation and removal of about 25,000
cu. yds. of dirt in less than a week. Concrete construction
took place throughout November, with more than 6,000 cu. yds.
poured during the holidays. Metals installation occurred throughout
January and into late February.
The project was completed March 20, leaving just 10 days
for testing before the irrigation season began.
"The project moved so quickly that it was amazing to
see the changes that took place from day to day," Woodley
said.
As part of the testing period, a 500-ft. section between
the old headgates and the new screen was filled with water
for a wet test of the screen cleaners, which sweep algae and
other debris from the fish screens. The trash rake and pump
were also tested.
The new headgates were lifted slightly and closed during
the wet test to ensure they operated correctly.
Since the region's farming community receives all of its
irrigation water from the 220,000-acre federal Klamath Project,
the improvements carried significant weight, according to
Alan Stroppini, project manager for the Bureau of Reclamation.
Stroppini said issues related to water use for farmers and
the protection of fish continue to cause concern for the bureau,
but completion of the fish-screening system is an important
start in addressing such concerns.
"The good news is there are efforts to mitigate problems
downstream of the project," he added. "The improvements
we've made in screening fish through the A Canal appear to
be a successful start to solving those problems.
"One of the things that was stellar about this project
was the cooperation between the public and private sectors.
We had an excellent contractor and engineer come in, and we
were able to meet 18 months ago and make this happen by April
1."
Along with the rigorous construction timeline, the project's
proximity to residential areas meant the site was too confined
to for workers to use a stationary crane.
"There wasn't a lot of room to move heavy items and
we needed to bring in a tower crane instead," Woodley
said.
Environmental impacts were a concern as well. Slayden dumped
1,500 cu. yds. of gravel to create a cofferdam to isolate
the Upper Klamath Lake from the headgates of the A Canal during
construction, and silt screens were incorporated to minimize
the impact of the logboom.
Stroppini said efforts to mitigate environmental concerns
reflect a new era at the Bureau of Reclamation.
"One of the things the bureau gets beat up for quite
a bit is that there's a perception that we're a water resource
organization with this attitude of, 'Damn the torpedoes all
the way,'" he added. "To some extent, that perception
was true during the 1990s. We've made some adjustments in
the way we do business. We still have obligations in terms
of providing water and energy resources, but we really try
to accommodate the environmental issues as well."
During summer 2001, the controversial project made headlines
across the country when the Bureau of Reclamation reduced
irrigation for farms to protect suckers listed under the Endangered
Species Act. The water reduction ignited a series of protests
by local farmers during one of the worst droughts in the region's
history.
Federal guards eventually were called in to prevent farmers
from illegally opening the headgates to release irrigation
water. The protests initiated a scientific review of the government's
decision to conserve the water for fish, which eventually
was reversed so that farmers received their full allotments
of irrigation water in summer 2002.
That memorable summer is preserved in an exhibit at the Klamath
County Museum, which includes artifacts such as concrete and
steel pieces of the old headgate.
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