Rock Canyon E.c. #1 is an earth dam located in Arapahoe County, Colorado, built in 1971. It carries a Low hazard potential classification and has a unsatisfactory condition assessment.
Dam profile
NID height · 26 ft26 ft tall and 373 ft long, taller than 55% 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 Rock Canyon E.c. #1
The primary purpose of Rock Canyon E.c. #1 is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Thomas H. Bradbury (private). It impounds the Bijou Creek-tr near Byers.
The dam stands 26 feet tall and stretches 373 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 79 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1971, the structure is well into its service life at over 50 years old.
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. Its condition is rated unsatisfactory, indicating serious safety deficiencies exist that require immediate attention or remedial action. The most recent inspection on record was 11/17/2020.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Colorado |
| County | Arapahoe |
| Nearest City | Byers |
| River/Stream | Bijou Creek-tr |
| Coordinates | 39.68000, -104.27223 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 26 ft |
| Dam Height | 19 ft |
| Dam Length | 373 ft |
| Year Completed | 1971 (55 years old) |
Storage & Hydraulics
| NID Storage | 79 acre-ft |
| Max Storage | 79 acre-ft |
| Normal Storage | 44 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 1,975 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Thomas H. Bradbury |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Unsatisfactory |
| Last Inspection | 11/17/2020 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO00113 |
| Federal ID | CO00113 |
| More Info | State Dam Safety Program |