CU ditch-water system by the numbers


CU ditch-water system by the numbers

  • 0.1 inches: amount of rain that automatically shuts down the watering system
  • 0.23 inches: amount of water applied daily to campus turf in normal weather conditions
  • 1 Toro Network 8000: the computer system that runs the entire campus watering system
  • 1 weather station: at Franklin Field to control watering system
  • 3 days: to use up all the water in Varsity Pond with a normal watering schedule
  • 3AM: when watering starts in high vandalism areas (along routes home from bars)
  • 4 headgates: from Anderson and Smith Goss Ditches, which supply the campus system
  • 4 pump stations: to pump water out through the sprinkler system
  • 4 cycles per night: how often sprinklers run in heavily compacted areas
  • 4 ponds and 1 cistern: storage for irrigation water
  • 11 hours: CU only waters between 9PM and 8AM
  • 15 MPH: wind speed that automatically shuts down the watering system
  • 30 minutes: time spent daily, tweaking the computer system for each night's watering
  • 32 stations: per irrigation clock in the Toro 8000 system
  • 57 irrigation clocks: in Toro 8000 system
  • 140 acres: of CU campus watered by ditch-water
  • 200 acres: total campus land in Boulder
  • 59 staff: working on water/turf during the summer
  • 60 days: time between fertigation cycles.
  • 100 percent: of the main campus watered with ditch water
  • 270 days: number of days a year CU waters
  • 400 gallons/minute: size of pump at Newton Court
  • 700 gallons/minute: size of pumps at Varsity pond and the Research Park
  • 2000 gallons/minute: size of pump at 28th and Colorado
  • 50,000: number of sprinkler heads in the entire system
  • $50-80,000: cost of each of 4 pump stations.
  • $440,000: amount of money CU saves each year by using ditch water
  • 80,000,000: gallons of ditch water CU uses in a normal year

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