modifying existing structures to install new fish screens
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Modifying existing structures to install new fish screens. Bob Edwards Oregon Dept. of Fish and Wildlife. Crooked River Central. Is there an existing structure? What is the integrity of the structure? Is the location of the structure adequate? - PowerPoint PPT PresentationTRANSCRIPT
New Screens, Old Structures
Modifying existing structures to install new fish screensBob EdwardsOregon Dept. of Fish and Wildlife
Crooked River CentralIs there an existing structure?What is the integrity of the structure?Is the location of the structure adequate?Will it be cost effective short term and long term?
Big Creek Hatchery
Big Creek40 CFS Flat Panel, Single Wiper
Site Construction
Benefits of staying under budget
Before After
Lowline Ditch
Crooked River8 CFSHydrolox Belt Screen
Can we make it work?Water user has very limited funding availableConcrete is already in placeSite is in a great location in the canal
Site Prep.
On Site Modifications
Final Project
Over budgetPerformance IssuesMaintenance IssuesWas it worth it?
South Fork NecanicumCity of Seaside Municipal diversion.8cfsSite dates back to the 1930s.
S. Fk. Necanicum River8cfs Municipal Diversion$171,360.00Can we make this one work?
Diversion House
Now What?
Temporary Screen
Forming Challenges
Jones Dam
Peterson Point
In Conclusion Short Term Benefits vs Long Term Benefits
Cost Savings vs Cost Over-runs
Location