Dmacc Dam
Dmacc Dam is an earth dam located in Polk County, Iowa, built in 1984. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Dmacc Dam
Dmacc Dam is a dam in Polk, Iowa. The dam is owned by Iowa Department Of Transportation (state). It impounds the Tr- Saylor Cr. near Ankeny.
The dam stands 37 feet tall and stretches 1,040 feet across, creates a reservoir covering 14 acres, has a maximum storage capacity of 306 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1984, the structure is 42 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 05/29/2020.
At 37 feet, this dam is taller than 84% of dams nationwide.
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Location
| State | Iowa |
| County | Polk |
| Nearest City | Ankeny |
| River/Stream | Tr- Saylor Cr. |
| Coordinates | 41.70320, -93.60950 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 37 ft |
| Dam Height | 37 ft |
| Dam Length | 1,040 ft |
| Year Completed | 1984 (42 years old) |
Storage & Hydraulics
| NID Storage | 306 acre-ft |
| Max Storage | 306 acre-ft |
| Normal Storage | 88 acre-ft |
| Surface Area | 14 acres |
| Drainage Area | 1 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | Iowa Department of Transportation |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/29/2020 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA02260 |
| Federal ID | IA02260 |
| More Info | State Dam Safety Program |