Sand Lake
Sand Lake is an earth dam located in Carbon County, Wyoming, built in 1956. It carries a Significant hazard potential classification and has a fair condition assessment.
About Sand Lake
The primary purpose of Sand Lake is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Wheatland Irrigation District (private). It impounds the Deep Creek near Arlington.
The dam stands 22 feet tall and stretches 762 feet across, creates a reservoir covering 92 acres, has a maximum storage capacity of 1,660 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1956, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in 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 08/22/2023.
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Location
| State | Wyoming |
| County | Carbon |
| Nearest City | Arlington |
| River/Stream | Deep Creek |
| Coordinates | 41.45417, -106.27528 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 22 ft |
| Dam Height | 20 ft |
| Dam Length | 762 ft |
| Year Completed | 1956 (70 years old) |
Storage & Hydraulics
| NID Storage | 1,660 acre-ft |
| Max Storage | 1,660 acre-ft |
| Normal Storage | 1,105 acre-ft |
| Surface Area | 92 acres |
| Drainage Area | 4 sq mi |
| Max Discharge | 1,250 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | WHEATLAND IRRIGATION DISTRICT |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 08/22/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY00327 |
| Federal ID | WY00327 |
| More Info | State Dam Safety Program |