Jones #1 is an earth dam located in Grand County, Colorado, built in 1879. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 27 ft27 ft tall and 340 ft long, taller than 59% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Jones #1
The primary purpose of Jones #1 is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Grand River Ranch Owners Assoc. (culbreath, Ranch (private). It impounds the Sheep Creek-tr near Kremmling.
The dam stands 27 feet tall and stretches 340 feet across, creates a reservoir covering 18 acres, has a maximum storage capacity of 295 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1879, the structure is over a century old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 08/04/2021.
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Location
| State | Colorado |
| County | Grand |
| Nearest City | Kremmling |
| River/Stream | Sheep Creek-tr |
| Coordinates | 40.05668, -106.45057 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 27 ft |
| Dam Length | 340 ft |
| Year Completed | 1879 (147 years old) |
Storage & Hydraulics
| NID Storage | 295 acre-ft |
| Max Storage | 295 acre-ft |
| Normal Storage | 241 acre-ft |
| Surface Area | 18 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 115 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Grand River Ranch Owners Assoc. (culbreath, Ranch |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/04/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CO01703 |
| Federal ID | CO01703 |
| More Info | State Dam Safety Program |