English Bench Watershed Site 9
English Bench Watershed Site 9 is an earth dam located in Allamakee County, Iowa, built in 1970. It carries a Low hazard potential classification and has a unsatisfactory condition assessment.
About English Bench Watershed Site 9
The primary purpose of English Bench Watershed Site 9 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 Allamakee County Swcd (local government). It impounds the Tr-upper Iowa River near Mississippi River.
The dam stands 38 feet tall and stretches 230 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 32 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1970, 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. Its condition is rated unsatisfactory, indicating serious safety deficiencies exist that require immediate attention or remedial action.
At 38 feet, this dam is taller than 85% of dams nationwide.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Iowa |
| County | Allamakee |
| Nearest City | Mississippi River |
| River/Stream | Tr-upper Iowa River |
| Coordinates | 43.43450, -91.46780 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 38 ft |
| Dam Height | 38 ft |
| Dam Length | 230 ft |
| Year Completed | 1970 (56 years old) |
Storage & Hydraulics
| NID Storage | 32 acre-ft |
| Max Storage | 32 acre-ft |
| Normal Storage | 21 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Allamakee County SWCD |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Unsatisfactory |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA00086 |
| Federal ID | IA00086 |
| More Info | State Dam Safety Program |