Muddy Guard No. 2 North Dam
Muddy Guard No. 2 North Dam is an earth dam located in Johnson County, Wyoming, built in 1976. It carries a Significant hazard potential classification and has a fair condition assessment.
About Muddy Guard No. 2 North Dam
The primary purpose of Muddy Guard No. 2 North Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by North Fork Irrigation District (private). It impounds the Erosion Draw & Guard Draw near Arvada.
The dam stands 102 feet tall and stretches 1,260 feet across, creates a reservoir covering 51 acres, has a maximum storage capacity of 1,934 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1976, the structure is 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 04/29/2024.
At 102 feet, this dam is taller than 98% of all dams in the United States.
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Location
| State | Wyoming |
| County | Johnson |
| Nearest City | Arvada |
| River/Stream | Erosion Draw & Guard Draw |
| Coordinates | 44.18556, -106.75667 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 102 ft |
| Dam Height | 102 ft |
| Dam Length | 1,260 ft |
| Year Completed | 1976 (50 years old) |
Storage & Hydraulics
| NID Storage | 1,934 acre-ft |
| Max Storage | 1,934 acre-ft |
| Normal Storage | 1,934 acre-ft |
| Surface Area | 51 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 100 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | NORTH FORK IRRIGATION DISTRICT |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 04/29/2024 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY01333 |
| Federal ID | WY01333 |
| More Info | State Dam Safety Program |