Presentation on theme: "Hydrosystem Operations and Fish Recovery in the Columbia River Basin U"— Presentation transcript:
1 Hydrosystem Operations and Fish Recovery in the Columbia River Basin U Hydrosystem Operations and Fish Recovery in the Columbia River Basin U.S. Army Corps of Engineers Northwestern Division June 19, 2008
2 Today’s DiscussionFederal Columbia River Power System (FCRPS) Remand ProcessThe Columbia Basin Fish AccordsKey Biological Opinion Actions
4 2008 FCRPS Remand ProcessProduct of two years of collaboration among four federal agencies, four Northwest states and seven Northwest tribes.Comprehensive biological analysis for each listed stock and “population”Historical trendsCurrent conditionBenefits of proposed actions in all HsGoal is trend to recovery
5 2008 FCRPS Remand Process (continued) Juvenile in-river survival is nearly three times higher than it was in the mid-to-late 1970s.Adult migration rate and travel time are similar to levels before the Snake River dams were completed.
6 Estimated Dam Survival 91.7% Bonneville Dam 1995–1999 Route of Passage Survival Estimates for Yearling ChinookBonneville 2B2 survival = 90%Corner Collector Survival = N/ASpillway survival = 98%SpillwayBonneville 1B1 survival = 90%Estimated Dam Survival 91.7%Route Specific Survival Estimates from PATH Report and 2000 BiOpSpring Spill Operations:75 kcfs day/ 120 kcfs (Gas Cap) night
7 Estimated Dam Survival 95.9% Bonneville Dam 2004 & 2005 Route of Passage Survival Estimates for Yearling ChinookBonneville 2B2 Bypass survival = 98.9%B2 Turbine survival = 95.8%Spillway survival = 92.0%SpillwayCorner Collector Survival = 100.0%Combined Turbine & Sluiceway survival = 93.1%Bonneville 1Estimated Dam Survival 95.9%Spring Spill Operations:100 kcfs 24 hrs/dayCounihan et al. Final report by USGS
8 2008 FCRPS Remand Process (continued) All H approach (Hydro, Habitat, Hatcheries, Harvest) with significant actions on predation managementReasonable and Prudent Alternative that includes 73 ActionsIncludes Adaptive Management provisions including extensive RM&E programAnnual progress reports and check-ins at 2013 and 2016 will contain diagnostic analysesContinued collaboration with states and tribes
10 Columbia Basin Fish Accords Signed Accords withConfederated Tribes of the Umatilla Indian ReservationThe Confederated Tribes of Warm SpringsYakama Indian NationConfederated Tribes of the Colville ReservationColumbia River Inter-Tribal Fish CommissionMontanaIdahoCosts over 10 years$900 million incurred by the Bonneville Power Administration$50 million from the Corps of Engineers for Pacific lampreySignificant BenefitHundreds of “on the ground” habitat projects based on recovery plans with demonstrated biological benefitsNew hatchery actions to promote recovery and regional fisheries, without impeding recovery of listed fish.
11 2008 FCRPS Biological Opinion FlowsSpill and transport operations timed to the needs of individual speciesExpanded habitat programExpanded predation-management programTimetable and commitments for site-specific hatchery reformsSpecific mainstem hydro improvements
12 Flows Flow augmentation similar to 2000 BiOp, except for: Implementation of summer operations at Libby and Hungry Horse dams recommended by the State of MontanaWork on dry water year strategy for Grand Coulee DamJohn Day – Operate John Day pool at the lowest elevation that continues to allow irrigation from April 10 through September 30.Lower Snake – Operate at minimum operating pool (MOP) elevation from April 3 until small numbers of juvenile migrants are present unless adjusted to meet authorized project purposes.
13 Spill Operations Spring Summer 24-hour spill at all projects Lower Snake collector projects–spill ceases for two weeks in May for transport of steelheadContinue testing of spill as new surface collectors come onlineEarlier transition from spring to summer spillSummerSimilar spill levels as in 2006–2008Snake River projects–Cessation of spill in August when few fish are present (300–500)
14 Juvenile Fish Transportation Program Spring Chinook typically benefit from transportation after approximately April 20Steelhead typically benefit from transport throughout the seasonFall Chinook research is in progressSockeye has too little data to tell
15 Future Hydro Improvements $500 million over 10 years Commitment to higher dam passage performance standards:96% average or better survival for spring migrants93% average for summer migrantsScheduled commitments to additional surface collectors (RSWs/TSWs)Improvements to juvenile bypass systems
16 Spillway Improvements 2004, New spill wall 2010 IdahoLower Columbia andSnake River DamsWashingtonRiverJuvenile SurfacePassage ImprovementsColumbiaLower Monumental2008Little Goose2009Ice Harbor2005The DallesSpillway Improvements 2004, New spill wall 2010Pacific OceanColumbiaRiverLower Granite2001McNarySnakeBonneville 2004John DayOregon= Transport FacilitiesRiver(all dates subject to change)
17 Surface Collection Advantages Fish pass at normal vertical distributionReduce forebay delayImproved efficiency for passagePotential improvement in total dissolved gasKelt passage
19 Spillway Weirs McNary Dam McNary dam currently in second year of testing TSW’s (shown in picture)John Day Dam testing TSW’s this yearSpillway WeirsMcNary Dam
20 Litigation: NWF v. NMFS, Corps, & Reclamation Remand completed with issuance of 2008 BiOp on May 5Court-ordered hydro operations remain in effect until Aug 31, 2008NWF et al. filed complaint against NMFS with U.S. District Court of Oregon, challenging new BiOpPlans to sue Corps and Reclamation challenging compliance with ESA and CWABriefing on the merits will begin mid-summer; schedule is being set to allow time for preliminary injunction hearing before the end of calendar yearAnticipate PI to be broader in scope than mainstem spill operation
22 Initial Spill Operations under the new BiOp ProjectSpring OperationsSummer OperationsPlanning DatesVolume(Day/Night)Volume (Day/Night)Lower Granite4/3-5/65/21-5/3020 kcfs6/1-8/3118 kcfsLittle Goose4/5-5/630%L. Monumental4/7-5/627 kcfs17 kcfsIce Harbor30% vs (45kcfs/gas cap)6/16-8/3130% vs (45kcfs/gas cap)McNary4/10-6/1540%40% vs 60%John Day30% vs 40%The DallesBonneville100 kcfs(85kcfs/gas cap)
23 Resulting Transport Operations Spring OperationsSpill and Bypass April 3 – April 20Spill and Transport April 21 – May 6Maximized Transport May 7 – 20Resume Spill and Transport May 21 ~ June 1 or until Fall Chinook predominateSummer OperationsSpill and Transport (~June 1 ~ Aug 31)In August, spill will be curtailed after Aug 1 when fewer than 300 juvenile fall Chinook per day are collected