Branhagen Dam is an earth dam located in Winneshiek County, Iowa, built in 2021. It carries a Low hazard potential classification.
Dam profile
NID height · 29 ft29 ft tall and 400 ft long, taller than 65% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Branhagen Dam
The primary purpose of Branhagen Dam is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by Darrel Branhagen (private). It impounds the Unnamed Tributary near Decorah.
The dam stands 29 feet tall and stretches 400 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 74 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2021, the structure is relatively new.
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.
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Location
| State | Iowa |
| County | Winneshiek |
| Nearest City | Decorah |
| River/Stream | Unnamed Tributary |
| Coordinates | 43.23460, -91.76290 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 29 ft |
| Dam Height | 29 ft |
| Dam Length | 400 ft |
| Year Completed | 2021 (5 years old) |
Storage & Hydraulics
| NID Storage | 74 acre-ft |
| Max Storage | 74 acre-ft |
| Normal Storage | 20 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 100 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | Darrel Branhagen |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA04333 |
| Federal ID | IA04333 |
| More Info | State Dam Safety Program |