Olmstead Dam is an earth dam located in Polk County, Iowa, built in 1966. It carries a Low hazard potential classification.
Dam profile
NID height · 27 ft27 ft tall and 557 ft long, taller than 59% 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 Olmstead Dam
The primary purpose of Olmstead Dam 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 Donald G Olmstead (private). It impounds the Tr-mud Creek near Ivy.
The dam stands 27 feet tall and stretches 557 feet across, creates a reservoir covering 10 acres, has a maximum storage capacity of 159 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1966, 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. The most recent inspection on record was 10/05/1967. That was over 59 years ago.
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Location
| State | Iowa |
| County | Polk |
| Nearest City | Ivy |
| River/Stream | Tr-mud Creek |
| Coordinates | 41.63750, -93.42300 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 27 ft |
| Dam Length | 557 ft |
| Year Completed | 1966 (60 years old) |
Storage & Hydraulics
| NID Storage | 159 acre-ft |
| Max Storage | 159 acre-ft |
| Normal Storage | 75 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Donald G Olmstead |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 10/05/1967 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA00913 |
| Federal ID | IA00913 |
| More Info | State Dam Safety Program |