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Bureau of Reclamation

The Central Valley Project Improvement Act directs the Secretary of the Interior to “develop and implement a comprehensive program to provide flows to allow sufficient spawning, incubation, rearing, and outmigration for salmon and steelhead from Whiskeytown Dam.”  They appointed the Bureau of Reclamation as the co-lead who in-turn contacted Pacific Netting Products for a solution. 

The engineers at PNP designed, built and installed an 800’ X 42’ temperature curtain.  This fabric curtain was constructed of 5 ply 60 mil CSPE Hypalon and incorporates an integral 30” diameter steel frame boat passage gate.  PNP custom designed the flexible barrier to fit the location and delivered it in two sections, requiring minimal on site assembly.  The temperature curtain contains the warmer water and algae near the surface, while allowing the cooler, preferable water, to flow downstream to aid the migrating fish.  As a result, the Bureau of Reclamation was able to meet federal requirements to improve fish passage and continue their mission to protect the environment.

  

Features:

30” X 20’ foam filled steel floats

48” foam filled steel anchor buoys

 

5 ply 60 mil CSPE Hypalon Fabric Curtain

 

30” diameter steel frame boat passage gate

 

Weights, chain and all rigging components

 

Shore anchors with clump weights on near shore curtain sections

 

Deployed for year round use

Anticipated lifespan of 8-10 years

 

 

About Us

Established in 1997, Pacific Netting Products is the world’s leading provider of engineered netting solutions for projects ranging from residential applications to the design, manufacture and installation of the world’s largest underwater netting system.

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