Simpson Creek Watershed Site 4 is an earth dam located in Fremont County, Iowa, built in 1958. It carries a Low hazard potential classification.
Dam profile
NID height · 41 ft41 ft tall and 604 ft long, taller than 87% 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 Simpson Creek Watershed Site 4
The primary purpose of Simpson Creek Watershed Site 4 is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Fremont County Swcd (local government). It impounds the Simpson Creek near Hamburg.
The dam stands 41 feet tall and stretches 604 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 89 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1958, 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.
At 41 feet, this dam is taller than 87% of dams nationwide.
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Location
| State | Iowa |
| County | Fremont |
| Nearest City | Hamburg |
| River/Stream | Simpson Creek |
| Coordinates | 40.65350, -95.66070 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 41 ft |
| Dam Height | 41 ft |
| Dam Length | 604 ft |
| Year Completed | 1958 (68 years old) |
Storage & Hydraulics
| NID Storage | 89 acre-ft |
| Max Storage | 89 acre-ft |
| Normal Storage | 75 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Fremont County Swcd |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA00401 |
| Federal ID | IA00401 |
| More Info | State Dam Safety Program |