Toponas Rock #2
Toponas Rock #2 is an earth dam located in Routt County, Colorado, built in 1945. It carries a Low hazard potential classification.
About Toponas Rock #2
The primary purpose of Toponas Rock #2 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Perry, Chuck (private). It impounds the Toponas Creek-tr near Mccoy.
The dam stands 45 feet tall and stretches 500 feet across, creates a reservoir covering 12 acres, has a maximum storage capacity of 268 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1945, the structure is well-established, with more than 75 years of service.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 07/24/2018.
At 45 feet, this dam is taller than 91% of dams nationwide.
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Location
| State | Colorado |
| County | Routt |
| Nearest City | Mccoy |
| River/Stream | Toponas Creek-tr |
| Coordinates | 40.09890, -106.76029 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 45 ft |
| Dam Height | 45 ft |
| Dam Length | 500 ft |
| Year Completed | 1945 (81 years old) |
Storage & Hydraulics
| NID Storage | 268 acre-ft |
| Max Storage | 268 acre-ft |
| Normal Storage | 197 acre-ft |
| Surface Area | 12 acres |
| Drainage Area | 4 sq mi |
| Max Discharge | 570 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | PERRY, CHUCK |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 07/24/2018 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO01711 |
| Federal ID | CO01711 |
| More Info | State Dam Safety Program |