Carroll No. 1
Carroll No. 1 is an earth dam located in Natrona County, Wyoming, built in 1946. It carries a Low hazard potential classification and has a fair condition assessment.
About Carroll No. 1
The primary purpose of Carroll No. 1 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Blackmore Homes, Inc (private). It impounds the Elkhorn Creek near Big Muddy Oil Field.
The dam stands 24 feet tall and stretches 626 feet across, creates a reservoir covering 9 acres, and has a maximum storage capacity of 112 acre-feet. Completed in 1946, the structure is well-established, with more than 75 years of service.
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 04/14/2022.
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Location
| State | Wyoming |
| County | Natrona |
| Nearest City | Big Muddy Oil Field |
| River/Stream | Elkhorn Creek |
| Coordinates | 42.84220, -106.24920 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 24 ft |
| Dam Height | 24 ft |
| Dam Length | 626 ft |
| Year Completed | 1946 (80 years old) |
Storage & Hydraulics
| NID Storage | 112 acre-ft |
| Max Storage | 112 acre-ft |
| Normal Storage | 52 acre-ft |
| Surface Area | 9 acres |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | BLACKMORE HOMES, INC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 04/14/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY00253 |
| Federal ID | WY00253 |
| More Info | State Dam Safety Program |