Blockton Watershed Site E-3 is an earth dam located in Taylor County, Iowa, built in 1973. It carries a Low hazard potential classification.
Dam profile
NID height · 36 ft36 ft tall and 615 ft long, taller than 82% 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 Blockton Watershed Site E-3
The primary purpose of Blockton Watershed Site E-3 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 Taylor County Swcd (local government). It impounds the Tr-platte River near Athelstan.
The dam stands 36 feet tall and stretches 615 feet across, creates a reservoir covering 9 acres, has a maximum storage capacity of 167 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1973, 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 36 feet, this dam is taller than 82% of dams nationwide.
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Location
| State | Iowa |
| County | Taylor |
| Nearest City | Athelstan |
| River/Stream | Tr-platte River |
| Coordinates | 40.59560, -94.53210 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 36 ft |
| Dam Height | 36 ft |
| Dam Length | 615 ft |
| Year Completed | 1973 (53 years old) |
Storage & Hydraulics
| NID Storage | 167 acre-ft |
| Max Storage | 167 acre-ft |
| Normal Storage | 80 acre-ft |
| Surface Area | 9 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Taylor County Swcd |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA01041 |
| Federal ID | IA01041 |
| More Info | State Dam Safety Program |