water conservation by tliiidiitumalo irrigation district...
TRANSCRIPT
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Managing Water in a Climate Changing World – USCID 2008
Water Conservation by T l I i i Di iTumalo Irrigation District Through Piping of Canals
Jon Burgi, P.E.David Evans & Associates, Inc.
Bend, Oregon
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Water Conservation by Tumalo Irrigation District Through Piping of Canals
Managing Water in a Climate Changing World – USCID 2008
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Managing Water in a Climate Changing World – USCID 2008
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Water Conservation by Tumalo Irrigation District Through Piping of Canals
Tumalo Irrigation District Quick Facts:
E t bli h d 1904 th T l P j t•Established – 1904 as the Tumalo Project
•Serves approximately 60 square miles with approximately 8,000-irrigated acres
•Over 80 miles of canals, laterals and ditches
•Serves 635 land owners
•Peak Summer diversion of approximately 180 cfs
•Major concerns include consistent deliveries, urbanization, aging infrastructure, and ESA environmental concerns.
Managing Water in a Climate Changing World – USCID 2008
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Water Conservation by Tumalo Irrigation District Through Piping of Canals
Water Conservation/Piping – Why bother?1. Consistent Delivery of Water
• Prior to conservation efforts, TID was often unable to deliver full deliveries to users.
2. Urbanization
• Access, Aesthetics, Attractive nuisance
3. Aging infrastructure
S f t i t d ith l b h• Safety concerns associated with canal breach
4. Environmental Reasons
• DEQ TMDL’sDEQ TMDL s
• Endangered Species Act
Managing Water in a Climate Changing World – USCID 2008
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Water Conservation by Tumalo Irrigation District Through Piping of Canals
Water Loss from system:•Historical water losses have
35,00035,00035,000
approached 60%
•Evaporation = 100 AF/yr
•On-Farm Loss = 5 000 AF/yr20 000
25,000
30,000
20 000
25,000
30,000
20 000
25,000
30,000
•On-Farm Loss = 5,000 AF/yr
•Operational Loss = 5,000 AF/yr
•Leakage = 30,000 AF/yr10,000
15,000
20,000
10,000
15,000
20,000
10,000
15,000
20,000
•Completed Projects = 1,800 AF/yr
•Current Projects decrease leakage by 6,500 AF/yr
0
5,000
Evaporation On-Farm Loss Operational Leakage0
5,000
Evaporation On-Farm Loss Operational Leakage0
5,000
Evaporation On-Farm Loss Operational Leakage
Managing Water in a Climate Changing World – USCID 2008
leakage by 6,500 AF/yrEvaporation On-Farm Loss Operational LeakageEvaporation On-Farm Loss Operational LeakageEvaporation On-Farm Loss Operational Leakage
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TUMALO IRRIGATION DISTRICT –WATER CONSERVATION PROJECTPast Projects•Columbia Southern project - 1999
•Pipe ¼ mile of the Tumalo Feed•Pipe ¼ mile of the Tumalo Feed Canal to increase capacity
•Returned natural flow to approximately 9 miles of Tumaloapproximately 9-miles of Tumalo Creek.
•Bend Feed Canal Project Group – 2005
•Pipe sections of the Bend Feed Canal with 7.5-foot diameter HDPE pipe. Approx. 3 miles.
•5.8-cfs permanent senior water right allocation in Tumalo Creek
Managing Water in a Climate Changing World – USCID 2008
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Bend Feed Canal
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Bend Feed Canal
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Restored Section of Bend Feed Canal
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TUMALO IRRIGATION DISTRICT –WATER CONSERVATION PROJECT
Current Project – Tumalo Feed Canal•6-mile piping project to mitigate leaky, porous open canals
•Enhanced water delivery to TID irrigators
•20-cfs of conserved water will be permanently dedicated in-steam
•Provide backbone of pressurizedProvide backbone of pressurized system
•Phase 1 completed last year
Ph 2 th h 5 h ld b•Phases 2 through 5 should be completed in the next 7 years.
Managing Water in a Climate Changing World – USCID 2008
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Water Conservation by Tumalo Irrigation District Through Piping of Canals
Managing Water in a Climate Changing World – USCID 2008
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Tumalo Feed Canal
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Tumalo Feed Canal
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Tumalo Feed Canal
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TUMALO IRRIGATION DISTRICT –WATER CONSERVATION PROJECT
Future Projects•The long range plan for Tumalo since the early 1990’s has been to pipe their entire system
BenefitsBenefits•Shoring up delivery’s•Pressurized water at the farm•Canal safety•Environmental benefits of water in stream•Potential for Hydro power
Managing Water in a Climate Changing World – USCID 2008
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Construction of Main Canal – 1920’s
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Construction of Main Canal 1920’sConstruction of Main Canal – 1920 s
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Managing Water in a Climate Changing World – USCID 2008