Snake River Salmon Recovery Regional ISRP Site Visits

Tucannon & Walla Walla Rivers April 23, 2013

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Pataha Fish Passage

Post ProjectPre-Project

Pre-Project

Sponsor: Eric Hoverson – Confederated Tribes of the Umatilla Indian ReservationPrimary Species: Summer SteelheadObjective: Provide fish passageApproach: Back water culvert through increased elevation steps and roughnessNote: Pataha has high potential for increased steelhead numbers

Tucannon River Levee Set Back

Sponsor: Terry Bruegman – Columbia Conservation DistrictPrimary Species: Spring Chinook, Steelhead & Bull TroutObjective: Reduce river and floodplain confinement Note: >3 miles of confinement removed & 130 acres of floodplain connected

Pre-project Levee Post-project Levee

Post-project Floodplain

Post-project Levee

Tucannon R. Levee Set Back

Tucannon River LWDSponsor: Dave Karl Washington Department of Fish & WildlifePrimary Species: Spring Chinook, Steelhead & Bull Trout

Objective: Remove floodplain and channel confining factors for 1.8 mile project reach through wood replenishmentApproach: Place 291 key trees and 500 racking trees in 65 structuresNote: Development of > 0.5 mile additional side channel during Fall/Winter Freshet 2012/2013

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Mill Creek Flumes Transitions• Sponsor: Brian Burns, Tri-State Steelheaders• Funding: SRFB Funded & CTUIR Completed in 2012• Primary Species: Steelhead, Bull Trout, Chinook• Objective: Improve passage in the floodway with 6” Bull Trout being the low bar

and adult steelhead being the high bar• Note: The transitions produced one of the most problematic passage issues in the

2 mile concrete channel

• Sponsor: Brian Burns, Tri-State Steelheaders (RFEG)• Funding: SRFB Funded & CTUIR Completed in 2013• Primary Species: Steelhead, Bull Trout, Chinook• Objective: Pilot project to determine constructability• Note: Passage in Mill Creek need to meet spatial requirements under ESA

Mill Creek Sills Passage (Construction Pilot)

Before After

Before After

Bergevin Williams/Old Lowden - Irrigation Canal Consolidation

• Sponsor: Larry Hooker, Walla Walla County Conservation District• Primary Species: Steelhead, Bull Trout, Chinook• Funding: SRFB Funded & BPA • Objective: Four diversions consolidated into one and reduced withdrawal

and remove the need to annually construct 4 gravel diversions in stream• Note: The consolidation removes the need to access the stream channel

annually to construct berms and the berms will not produce obstructions

Before After

• Sponsor: Brian Walcott - Executive Director Walla Walla Watershed Council• Primary Species: Steelhead, Bull Trout, Chinook• Objective: Utilize abundant winter/spring flows to increase shallow aquifer and

summer base flow• Note: Increase flows have been measured in shallow aquifer and surface springs

Locker Shallow Aquifer Recharge

Upper Left illustrates the position of the recharge site to existing diversion infrastructure. Upper right illustrates the recharge site while it is in use.

Illustrations showing current and historic surface and groundwater flow directions. A – Current groundwater and surface water flow directions. Groundwater follows the historic surface water flow

directions, but surface water flow direction has been changed by deposits from the Missoula (Ice Age) Floods. B – Historic (pre Missoula Floods) groundwater and surface water flow directions.

Groundwater and surface water follow the same flow direction. (Walla Walla Basin Aquifer Recharge Strategic Plan Jan 2013)

Nursery Bridge• Sponsor: Brian Walcott – Executive Director Walla Walla Watershed Council• Primary Species: Steelhead, Bull Trout, Chinook• Objective: Fish Passage, screening and population enumeration, proposed levee

set back • Note:

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Nursery Bridge Dam Fish Count 1993-2010

Steelhead Spring Chinook Bull trout

Fish date provided by CTUIR

2013 Goggle Earth Image

Walla Walla Levee Removal Lampson Reach• Sponsor: Jed Volkman, Confederated Tribes of the Umatilla Indian Reservation• Funding: BPA and OWEB Completed in 2012• Primary Species: Steelhead, Bull Trout, Chinook• Objective: Improve floodplain connectivity and provided side channel habitat• Note: Construction required sensitivity to USACOE Levees downstream

Pre-project Levee

Project Construction

Post-project