Bucknum
Bucknum is an earth dam located in Natrona County, Wyoming, built in 1908. It carries a Low hazard potential classification and has a poor condition assessment.
About Bucknum
The primary purpose of Bucknum is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Harlan Bucknum Llc (private). It impounds the Box Draw near Casper.
The dam stands 23 feet tall and stretches 1,183 feet across, creates a reservoir covering 54 acres, and has a maximum storage capacity of 388 acre-feet. Completed in 1908, the structure is over a century 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 09/07/2023.
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Location
| State | Wyoming |
| County | Natrona |
| Nearest City | Casper |
| River/Stream | Box Draw |
| Coordinates | 42.99417, -106.67444 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 23 ft |
| Dam Height | 23 ft |
| Dam Length | 1,183 ft |
| Year Completed | 1908 (118 years old) |
Storage & Hydraulics
| NID Storage | 388 acre-ft |
| Max Storage | 388 acre-ft |
| Normal Storage | 270 acre-ft |
| Surface Area | 54 acres |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | HARLAN BUCKNUM LLC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 09/07/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY00236 |
| Federal ID | WY00236 |
| More Info | State Dam Safety Program |