Shimon Marsh Dam is an earth dam located in Pocahontas County, Iowa, built in 1990. It carries a Low hazard potential classification.
Dam profile
NID height · 8 ft8 ft tall and 1,130 ft long. 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 Shimon Marsh Dam
The primary purpose of Shimon Marsh Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Iowa Department of Natural Resources (state). It impounds the Tr- Little Cedar Creek near Fonda.
The dam stands 8 feet tall and stretches 1,130 feet across, creates a reservoir covering 69 acres, has a maximum storage capacity of 435 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1990, the structure is 36 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.
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Location
| State | Iowa |
| County | Pocahontas |
| Nearest City | Fonda |
| River/Stream | Tr- Little Cedar Creek |
| Coordinates | 42.62000, -94.85000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 8 ft |
| Dam Height | 8 ft |
| Dam Length | 1,130 ft |
| Year Completed | 1990 (36 years old) |
Storage & Hydraulics
| NID Storage | 435 acre-ft |
| Max Storage | 435 acre-ft |
| Normal Storage | 148 acre-ft |
| Surface Area | 69 acres |
| Drainage Area | 2 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Iowa Department of Natural Resources |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA02672 |
| Federal ID | IA02672 |
| More Info | State Dam Safety Program |