Management of the Cumberland River System
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Management of the Cumberland River System Tennessee Silver Jackets Meeting Old Hickory Lock and Dam 09 April 2014 Benjamin L. Rohrbach, P.E. Hydrology & Hydraulics Branch Chief Nashville District US Army Corps of Engineers BUILDING STRONG® Agenda . Background . History and Authorizing Legislation . Authorized Purposes . The Water Management Challenge . Water Management Program . Flood Operations . Protecting the Lower Ohio and Mississippi . Summary BUILDING STRONG® Background BUILDING STRONG® US Army Corps of Engineers Division Boundaries BUILDING STRONG® Great Lakes & Ohio River Division District Boundaries BUILDING STRONG® Nashville District River Basins & Boundaries Lieutenant Colonel John L. Hudson Commander and District Engineer Nashville District BUILDING STRONG® Cumberland River Basin Reservoir System . Cumberland River Basin Flood Control Project Storage ► 2 Drainage area – 17,913 mi (acre-feet) ► Total length – 694 miles . System of 10 multi-purpose projects Wolf Creek 2,094,000 ► Flood Damage Reduction • 5.3 M acre-feet of flood storage Dale Hollow 353,000 • > $2 B in flood damages prevented ($115 M/yr) • 77 % of drainage area above Nashville is controlled Center Hill 762,000 ► Hydropower • 9/10 projects have hydropower J. Percy 350,000 • 914 MW capacity from 28 hydropower turbines Priest ► Navigation • 380 miles of navigable waterway (4 locks) Barkley 1,472,000 • 795 miles on TN River (10 locks) ► Recreation Total 5,031,000 • 5 Nashville District projects in top 25 nationally • 31.3 M visitors last year (> $700 M economic impact) ► Environmental Stewardship • Environmental restoration projects • Tremendous mussel and fish diversity • Home to two world record fish BUILDING STRONG® History and Authorizing Legislation BUILDING STRONG® Historic Flood 1926-1927 BUILDING STRONG® Historic Flood 1937 BUILDING STRONG® Low Water on the Cumberland River BUILDING STRONG® Authorizing Legislation . Flood Control Act of 1938: PL 75-761 ► Wolf Creek (construction finished in 1952) ► Dale Hollow (1953) ► Center Hill (1951) ► J. Percy Priest (1970) ► Three Islands ► Rossview ► Devil’s Jump . River and Harbor Act of 1946: PL 79-525 ► Celina ► Cordell Hull (1974) ► Old Hickory (1957) ► Cheatham (1959) ► Barkley (1966) . Flood Control Act of 1960: PL 86-645 ► Laurel (1977) . Flood Control Act of 1965: PL 89-298 ► Martins Fork (1978) BUILDING STRONG® Authorized Purposes BUILDING STRONG® Congressionally Authorized Project Purposes Flood Damage Commercial Project Hydropower Recreation Reduction Navigation Wolf Creek Dam Dale Hollow Dam Center Hill Dam J. Percy Priest Dam Cordell Hull Lock & Dam Old Hickory Lock & Dam Cheatham Lock & Dam Barkley Lock & Dam Project not designed for this purpose Project primarily designed BUILDING STRONG for this purpose ® BUILDING STRONG® Congressionally Authorized Project Purposes Wolf Creek Dam Old Hickory Lock & Dam . Project Design . Project Design ► Flood Damage Reduction ► Flood Surcharge Storage ► 37 ft zone ► 5 ft zone ► Volume - 2,094,000 acre-feet ► Volume - 125,000 acre-feet ► Hydropower ► Hydropower ► 50 ft zone ► 3 ft zone ► Volume – 2,142,000 acre-feet ► Volume – 63,000 acre-feet ► Commercial Navigation BUILDING STRONG® Scale and Impact to the System Lake Cumberland Available Storage Flood 760’ Control Pool 740’ Louisville District (20) 726’ May 2011 Level 700’ (Reduced Huntington District (35) flooding by 660’ 1.2’ at Cairo, IL) Elevation Elevation 620’ Pittsburgh District (17) 580’ 540’ 460 480 500 520 540 560 Cumberland River Mile BUILDING STRONG® The Water Management Challenge . Water Control . Water Quality . Balancing Act . Project Authorized Purposes . Environmental Statutes . Changing Societal Values/Expectations BUILDING STRONG® Hydropower Water Supply Environmental Stewardship USACE Navigation Water Management Flood Damage Reduction Recreation BUILDING STRONG® TDEC EPA Cumberland SEPA TVA River Compact Environmental Organizations Hydropower Water USFWS Private Supply Utilities Environmental Boaters Stewardship Towing Industry USACE KDFWR Navigation Water Emergency Management Management TVA TVA KDFWR Flood Damage Public Reduction NWS TWRA Recreation Recreation Recreation Interests FEMA Industry BUILDING STRONG® Water Management Program BUILDING STRONG® Water Management Program . Water Quality ► Data Collection • 7 real-time water quality monitors • 4 real-time temperature • 62 stream sampling sites • 95 reservoir sampling sites ► Water Quality Modeling • Project specific CE-QUAL-W2 models • System water quality modeling ► Water Quality Restoration • Dissolved oxygen • Minimum flow BUILDING STRONG® Water Management Program Water Control Program . Data Collection Program • Project data from 10 multi- purpose projects • 75 rainfall sites • 45 river stage sites . Hydrology, Hydraulic, and Reservoir Simulation Modeling . Reservoir System Operations • Daily analysis of reservoir conditions • Balance operating objectives • Prepare 8-day forecast BUILDING STRONG® Water Management Team . Nashville District Water Management ► Multidisciplinary staff – engineers & scientists ► Perform complete system analysis every day . Nashville District Hydropower Operators ► 24/7 operational support . Great Lakes & Ohio River Water Management ► Ohio/Mississippi flood control operations ► Program oversight . Federal Partners ► Tennessee Valley Authority (TVA) ► National Weather Service ► U. S. Geological Survey BUILDING STRONG® Water Management Center BUILDING STRONG® Flood Operations BUILDING STRONG® Flood Operations National Weather Service 1 NWS generates observed radar rainfall Nashville USACE Water Management Nashville WM runs hydrology models to 2 forecast reservoir releases National Weather Service NWS uses forecast reservoir releases 3 and rainfall to predict flood stages Public BUILDING STRONG® Wolf Creek Inflow & Discharge (2011) 150,000150,000 730 Discharge (cfs) (cfs) Inflow (cfs) (cfs) 725 Headwater (ft) 125,000125,000 720 715 100,000100,000 710 705 75,00075,000 700 Flow (cfs) Flow (cfs) 695 Headwater (ft) 50,00050,000 690 25,00025,000 685 680 00 675 2/12/1 2/82/8 2/152/15 2/222/22 3/13/1 3/83/8 3/153/15 3/223/22 3/293/29 4/54/5 4/124/12 4/194/19 4/264/26 5/35/3 5/105/10 BUILDING STRONG® Cumberland River Stage at Nashville (2011) Observed vs Natural River Stage for Nashville 45 40 35 30 25 Nashville Stage (ft) Stage Nashville 20 15 Observed with Projects 10 Natural River Conditions Flood Stage 5 2/1 2/8 2/15 2/22 3/1 3/8 3/15 3/22 3/29 4/5 4/12 4/19 4/26 5/3 5/10 BUILDING STRONG® 2013 Wolf Creek Dam Inflow & Discharge 120,000 Discharge Inflow 100,000 80,000 60,000 Flow (cfs) 40,000 20,000 0 1/1 1/16 1/31 2/15 3/2 3/17 4/1 4/16 5/1 5/16 6/1 6/16 7/1 7/16 BUILDING STRONG® Cumberland River Stage at Nashville Observed vs Natural Stage for Nashville (2013) 45 40 35 30 25 20 Nashville Stage (ft) 15 Observed with Projects 10 Natural River Conditions Flood Stage Low Water Navigation Impacts 5 1/1 1/16 1/31 2/15 3/2 3/17 4/1 4/16 5/1 5/16 6/1 6/16 7/1 7/16 BUILDING STRONG® Protecting the Lower Ohio and Mississippi Rivers BUILDING STRONG® Protecting the Lower Ohio and Mississippi Rivers Smithland Lock Lock 53 Lock 52 Paducah Canal Cairo Birds Point- New Madrid Floodway BUILDING STRONG® Kentucky-Barkley Canal BUILDING STRONG® Kentucky-Barkley Flood Operations National Weather NWS forecasts flooding on the lower 1 Service Ohio & upper Mississippi Rivers Tennessee Valley Authority & Nashville WM TVA & Nashville WM forecast inflows and 2 reservoir stages on Kentucky & Barkley Lakes Lakes & Rivers Division Headquarters LRD coordinates Kentucky & Barkley releases 3 to reduce flooding on the Ohio & Mississippi Kentucky & Barkley Operators BUILDING STRONG® Operation Watershed Operation Watershed - Wolf Creek Dam 730 Observed 4/26/2011 – 5/4/2011 Without Reductions 725 Top of Hydropower Pool Rainfall & Project Operations 720 715 710 Cumberland River Basin Elevation (ft) 705 700 Barkley Lock & Dam 695 4/12 4/22 5/2 5/12 5/22 6/1 Cordell Hull Lock & Dam Wolf Creek Dam Cheatham Lock & Dam Old Hickory Lock & Dam Operation Watershed - Dale Hollow Dam 664 Top of Flood Control Pool 662 Observed Without Reductions Storage conserved in 660 Barkley and Kentucky 658 4.65 feet 656 Dale Hollow Dam Elevation (ft) 654 Dale Hollow – 0.51’ 652 J. Percy Priest – 0.65’ Top of Hydropower Pool 650 4/12 4/22 5/2 5/12 5/22 6/1 Center Hill – 0.95’ Operation Watershed - Center Hill Dam 660 Observed Wolf Creek – 2.54’ Without Reductions J. Percy Priest Dam 655 650 Top of Hydropower Pool Operation Watershed - J. Percy Priest Dam 506 645 Top of Flood Control Pool 504 Observed Center Hill Dam 640 Without Reductions Elevation (ft) 502 635 500 498 630 496 Elevation (ft) 625 4/12 4/22 5/2 5/12 5/22 6/1 Storage at Peak Elevation 494 492 490 Available 488 4/12 4/22 5/2 5/12 5/22 6/1 Peak BUILDING STRONG® Pie area scaled to storage capacity Water Stored After February 24, 2011 Headwater Headwater Water Stored Project (02/24/2011) Crest (acre-feet) Wolf Creek1 681.12 725.96 1,992,000 Dale Hollow 643.75 660.16 459,000 Center Hill1 625.70 658.15 576,000 J. Percy Priest 483.75 501.65 280,000 Total 3,307,0002 1 Wolf Creek and Center Hill Dams have been classified as DSAC 1 dams and are under pool restrictions to assure the stability of the dams. 2 This volume of water is roughly equivalent to 1.08 quadrillion gallons of water BUILDING STRONG or if stacked on a football field it would be 3.2 million feet (606 miles) high. ® Protecting the Lower Ohio and Mississippi Rivers Smithland Lock Lock 53 Lock 52 Paducah Canal Cairo May 2011 Flood Stage Reduction at Cairo Birds Point- New . 2-ft (0.62-m) due to Madrid Floodway Cumberland River Projects .0.8-ft (0.24-m) due to Tennessee River Projects .3.8-ft (1.2-m) for all LRD Storage Projects BUILDING STRONG® Summary BUILDING STRONG® Cumberland River System Water Management . Requires coordinated operation of a complex system to fulfill a wide range of often competing purposes and benefits .