Powell Marsh Wildlife Area
Powell Marsh Wildlife Area is an earth dam located in Iron County, Wisconsin, built in 1971. It carries a Low hazard potential classification and has a poor condition assessment.
About Powell Marsh Wildlife Area
Powell Marsh Wildlife Area is a dam in Iron, Wisconsin. The dam is owned by Wisconsin Department Of Natural Resources (state). It impounds the Little Bear Creek.
The dam stands 8 feet tall and stretches 300 feet across, creates a reservoir covering 63 acres, and has a maximum storage capacity of 190 acre-feet. Completed in 1971, 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks.
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Location
| State | Wisconsin |
| County | Iron |
| River/Stream | Little Bear Creek |
| Coordinates | 46.07912, -89.95443 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 8 ft |
| Dam Height | 8 ft |
| Dam Length | 300 ft |
| Year Completed | 1971 (55 years old) |
Storage & Hydraulics
| NID Storage | 190 acre-ft |
| Max Storage | 190 acre-ft |
| Normal Storage | 190 acre-ft |
| Surface Area | 63 acres |
Ownership & Safety
| Purpose | Other |
| Owner | Wisconsin Department of Natural Resources |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Emergency Action Plan | No |
Identifiers
| NID ID | WI10954 |
| Federal ID | WI10954 |
| More Info | State Dam Safety Program |