Horsetooth Reservoir water level today
Storage at Horsetooth Reservoir in the South Platte basin (Division 1), from Colorado DWR's daily reading.
About Horsetooth Reservoir
Horsetooth Reservoir is one of the 6 reservoirs BasinMind follows in the South Platte basin, Division 1 of Colorado's seven water divisions. BasinMind's registry lists its operator as Northern Water / USBR (C-BT). Its recorded capacity is 156,735 acre-feet, the largest of the 6 and 39% of the capacity BasinMind tracks in the division.
On October 3, 2026 it held 123,858 acre-feet, 79% of that capacity, with room for about 32,877 acre-feet more. Over the seven days before, storage rose by 2,423 acre-feet. Taken together, the division's reservoirs with a current reading stood at 65% of capacity (259,607 of 400,010 acre-feet).
Daily storage comes from the Colorado Division of Water Resources, DWR station HORTOOCO; the official record is on that station's page. The nearest stream gauge BasinMind reads is Cache La Poudre River at Fort Collins, about 5 miles away in a straight line.
An acre-foot is the water that would cover one acre a foot deep, about 325,851 gallons; percent full compares storage with recorded capacity, not with what is normal for the date (cfs and acre-feet).
Other reservoirs in the South Platte basin
- Carter Lake · 59% full
- Chatfield Reservoir · 56% full
- Cherry Creek Reservoir · 78% full
- Spinney Mountain Reservoir · 30% full
- Button Rock (Ralph Price) Reservoir · 96% full
Stream gauges in the South Platte basin
- South Platte River above Cheesman Lake
- South Platte River below Brush Creek near Trumbull
- South Platte River below Union Avenue at Englewood
- South Platte River at Englewood
- South Platte River at 64th Avenue, Commerce City
- South Platte River at Fort Lupton
- South Platte River at Fort Morgan