Middle Pond Dam
Middle Pond Dam is an earth dam located in Iowa County, Iowa, built in 1955. It carries a High hazard potential classification and has a poor condition assessment.
About Middle Pond Dam
The primary purpose of Middle Pond Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Amana Colonies Golf Course Inc (private). It impounds the Tr-iowa River near Middle Amana.
The dam stands 27 feet tall and stretches 455 feet across, creates a reservoir covering 14 acres, has a maximum storage capacity of 353 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1955, the structure is well into its service life at over 50 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 05/23/2023.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Iowa dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Iowa |
| County | Iowa |
| Nearest City | Middle Amana |
| River/Stream | Tr-iowa River |
| Coordinates | 41.80820, -91.90700 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 27 ft |
| Dam Length | 455 ft |
| Year Completed | 1955 (71 years old) |
Storage & Hydraulics
| NID Storage | 353 acre-ft |
| Max Storage | 353 acre-ft |
| Normal Storage | 78 acre-ft |
| Surface Area | 14 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Amana Colonies Golf Course Inc |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Poor |
| Last Inspection | 05/23/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | IA01699 |
| Federal ID | IA01699 |
| More Info | State Dam Safety Program |