Isu Dam is an earth dam located in Story County, Iowa, built in 1958. It carries a Low hazard potential classification.
Dam profile
NID height · 37 ft37 ft tall and 460 ft long, taller than 83% 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 Isu Dam
The primary purpose of Isu 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 Iowa State University (state). It impounds the Tr- Skunk River near Ames.
The dam stands 37 feet tall and stretches 460 feet across, creates a reservoir covering 12 acres, has a maximum storage capacity of 170 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. The most recent inspection on record was 11/30/1960. That was over 65 years ago.
At 37 feet, this dam is taller than 83% of dams nationwide.
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Location
| State | Iowa |
| County | Story |
| Nearest City | Ames |
| River/Stream | Tr- Skunk River |
| Coordinates | 42.11020, -93.58200 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 37 ft |
| Dam Height | 37 ft |
| Dam Length | 460 ft |
| Year Completed | 1958 (68 years old) |
Storage & Hydraulics
| NID Storage | 170 acre-ft |
| Max Storage | 170 acre-ft |
| Normal Storage | 81 acre-ft |
| Surface Area | 12 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Iowa State University |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 11/30/1960 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA01027 |
| Federal ID | IA01027 |
| More Info | State Dam Safety Program |