Raper Draw
Raper Draw is an earth dam located in Johnson County, Wyoming, built in 1959. It carries a Low hazard potential classification and has a fair condition assessment.
About Raper Draw
The primary purpose of Raper Draw is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Faddis Kennedy Cattle Co (private). It impounds the Raper Draw near Arvada.
The dam stands 29 feet tall and stretches 231 feet across, creates a reservoir covering 4 acres, and has a maximum storage capacity of 72 acre-feet. Completed in 1959, 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 09/28/2023.
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Location
| State | Wyoming |
| County | Johnson |
| Nearest City | Arvada |
| River/Stream | Raper Draw |
| Coordinates | 44.33500, -106.22722 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 29 ft |
| Dam Height | 29 ft |
| Dam Length | 231 ft |
| Year Completed | 1959 (67 years old) |
Storage & Hydraulics
| NID Storage | 72 acre-ft |
| Max Storage | 72 acre-ft |
| Normal Storage | 24 acre-ft |
| Surface Area | 4 acres |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | FADDIS KENNEDY CATTLE CO |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 09/28/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY00537 |
| Federal ID | WY00537 |
| More Info | State Dam Safety Program |