SRP Reservoir and Watershed Status Update
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SRP Reservoir and Watershed Status Update Andrew Volkmer, P.E. Hydrologist SRP Surface Water Resources Andrew Volkmer, P.E. • Hydrologist, Surface Water Resources at Salt River Project • B.S. Agricultural Engineering, University of Nebraska-Lincoln • M.S. Agricultural and Biological Systems Engineering, University of Nebraska- Lincoln • Registered Professional Civil Engineer in State of Arizona 2 Overview • SRP Overview • Reservoir status • Watershed conditions • Precipitation • Snowpack • Runoff • Weather Outlook • Runoff Outlook 3 Salt River Project Structure • Salt River Valley Water Users Association • Established in 1903 • Private Corporation • One of the first reclamation projects under the Reclamation Act of 1902 • Salt River Project Agricultural Improvement and Power District • Established in 1937 • Political Subdivision of the State of Arizona • Allowed for the growth of power generation and service 4 Salt River Valley Water Users Association 5 KEY MAP Williams Flagstaff E. Clear Creek Watershed Sedona Verde River Watershed SRVWUA Salt River EAST CLEAR CREEK Watershed WATERSHED Prescott Camp SALT RIVER Verde WATERSHED VERDE RIVER Show Low WATERSHED Payson Alpine Agua Agua Fria SRV Phoenix Globe WUA SRP Watersheds 6 SRP Reservoir Systems East Clear Salt River Creek Dam Dams Verde River Dams Roosevelt C.C. Cragin Dam Horseshoe Dam (1911, 1996) Dam (1965) (1951) Horse Mesa Dam (1927) Bartlett Dam Stewart Mt Dam (1939, 1997) (1930, 1992) Mormon Flat Dam (1925) 7 SRP Reservoir System Capacity in Acre-Feet VERDE TOTAL SALT TOTAL Horseshoe SRP STORAGE: SRP STORAGE: Dam 287,403 AF 2,004,287 AF 2026’ Roosevelt Horseshoe Dam Horse Mesa 2218’ 109,217 AF Bartlett Dam 2151’ Dam 1914’ 1798’ Apache Lake Bartlett Mormon Flat 245,138 AF Roosevelt Lake 178,186 AF Dam 1,631,532 AF 1660.5’ Stewart EAST CLEAR CREEK Mountain Canyon Lake TOTAL Dam 57,852 AF SRP STORAGE: 1529’ 15,000 AF C.C. Cragin Dam Saguaro Lake Total Reservoir Storage: 6720’ 69,765 AF 2,306,690 AF C.C. Cragin 15,000 AF 8 9 8.65” (116% Normal) 10 11 12 13 2/7/2019 Verde Watershed 14 Pine Creek - Jan 11, 2019 Pine Creek – Feb 7, 2019 15 2/7/2019 Salt Watershed White Mountains 16 2/7/2019 Salt Watershed George’s Basin - Jan 8, 2019 George’s Basin – Feb 7, 2019 17 Salt + Tonto + Verde Inflow WY 2019 vs WY 2018 250,000 200,000 150,000 WY 2019 100,000 Cumulative Cumulative Inflow (AF) WY 2018 50,000 0 1-Oct 1-Nov 1-Dec 1-Jan 1-Feb 1-Mar 1-Apr 1-May WY2019 WY2018 18 Verde WS Average Precip = 0.94” Verde WS Average Precip = 0.89” Verde WS Average Precip = 0.12” 19 Oak Creek Near Sedona ~ 7,000 cfs https://www.facebook.com/verdenews/videos/vb.1238107 87658506/287154155299696/?type=2&theater 20 21 22 23 7- Day Precipitation Forecast 24 16- Day Precipitation Forecast 25 26 Thank You Questions? 28 footer 29 “Statements of fact and opinion expressed are those of the author(s) / presenter(s). AZ Water, AZAWWA, and AZWEA assume no responsibility for the content, nor do they represent official policy of the Association.”.