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McPhee Dam & Reservoir

Crest of Dam – 270 feet above stream bed Length – 1,370 feet / Width – 30 feet Volume – approx. 6,230,000 cubic yards Total Capacity – 381,000 acre-feet Active Capacity – 229,000 acre-feet Inactive Capacity – 152,000 acre-feet Dead Storage – 100 acre-feet Water Surface Area – 4,470 acres Full Reservoir Elevation – 6,924.0 feet Reservoir Extends – 10 miles up Dolores River, 4 miles up Beaver Creek, 1 mile up Dry Creek, 2 miles up House Creek and 2 miles across Sage Hen Flats Great Cut Dike Crest length – 1,900 feet / Width – 30 feet Maximum height – 64 feet above ground Volume – approx. 189,000 cubic yards Pumping Plants and Laterals Pumping Plants – 4 along Dove Creek Canal – 3 along South Canal Lateral Systems for sprinkler irrigation – 7 Pressurized Pipe laterals – approximately 82 miles / will deliver 55,200 acre-feet to approximately 27,920 acres in Montezuma and Dolores Counties  

 

Dove Creek Canal

Dove Creek Canal begins at the end of the pump discharge line at Great Cut Pumping Plant and extends northwest 32.8 miles to Dove Creek. Initial capacity – 380 cubic feet per second (c.f.s.) Turnouts – Fairview, Cahone, Pump Plant #23 and Dove Creek Pumping Plants South Canal South Canal branches from Dove Creek Canal near Pleasant View and extends 6.9 miles to the south and west. Initial capacity – 150 cubic feet per second Turnouts – Pleasant View, Sandstone Canyon, Ruin Canyon Pumping Plants and  Hovenweep laterals Dolores Tunnel and Canal Dolores Tunnel carries water through the Dolores-San Juan Divide about 2 miles west of Dolores Maximum capacity – 520 c.f.s. Turnouts – Dolores Canal, MVIC West and East Laterals, M&I water to the City of Cortez, Montezuma Water Company and Ute Tribe and the Towaoc Canal Powerplant Towaoc Canal Powerplant Capacity – 11.5 megawatts will produce an average of 30,318,000 kilowatt-hours annually Operates during irrigation season Towaoc Canal Towaoc Canal begins at Towaoc Canal Powerplant and extends south and west 39.5 miles to the Ute Mountain Ute Indian Reservation Initial capacity – 420 c.f.s. Turnouts – 160 to MVIC farmlands, 4 to Rocky Ford Laterals and 3 to Towaoc Laterals McPhee Dam Powerplant Two turbines which power a 1,300 kilowatt generator will produce an average of 7,170,000 kilowatt-hours annually Operates year round

Reservoir Data

Minimum pool for M&I reserve is 6858.81, content 160,378 acre feet.Minimum pool is 6855.00, content 151,978 acre feet.Maximum pool is 6924.00, content 381,160 acre feet.Ute M&I => 687 acre feet.City of Cortez M&I => 3210 acre feet.Revised 30 year average 1971 - 2000 is 397,000 acre feet.MVIC demand is 11 year average 1990 - 2000.Average water year inflow volume (30 yr/avg) = 397,000 acre feetFishery water years are April 1st to March 31st.Average evaporation is 5400 acre feet per year.Estimated seepage is 2000 acre feet per year.

Normal runoff is 319,400 acre feet.