Castle Rock Dam
Castle Rock Dam is an earth dam located in Hettinger County, North Dakota, built in 1969. It carries a Low hazard potential classification.
About Castle Rock Dam
The primary purpose of Castle Rock Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Louise & Larry Roemmich (private). It impounds the Cannonball River-tr near N.
The dam stands 18 feet tall and stretches 818 feet across, creates a reservoir covering 14 acres, has a maximum storage capacity of 184 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1969, 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. The most recent inspection on record was 04/20/1982. That was over 43 years ago.
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Location
| State | North Dakota |
| County | Hettinger |
| Nearest City | N |
| River/Stream | Cannonball River-tr |
| Coordinates | 46.33642, -102.39894 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 18 ft |
| Dam Height | 18 ft |
| Dam Length | 818 ft |
| Year Completed | 1969 (57 years old) |
Storage & Hydraulics
| NID Storage | 184 acre-ft |
| Max Storage | 184 acre-ft |
| Normal Storage | 75 acre-ft |
| Surface Area | 14 acres |
| Drainage Area | 2 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Louise & Larry Roemmich |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 04/20/1982 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | ND00261 |
| Federal ID | ND00261 |
| More Info | State Dam Safety Program |