Dovetail Estates Dam is an earth dam located in Johnson County, Iowa, built in 1999. It carries a Significant hazard potential classification.
Dam profile
NID height · 23 ft23 ft tall and 740 ft long. 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 Dovetail Estates Dam
Dovetail Estates Dam is a dam in Johnson, Iowa. The dam is owned by Dovetail Development Company (private). It impounds the Tr- Muddy Creek near Coralville.
The dam stands 23 feet tall and stretches 740 feet across, creates a reservoir covering 8 acres, has a maximum storage capacity of 156 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1999, the structure is 27 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.
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Location
| State | Iowa |
| County | Johnson |
| Nearest City | Coralville |
| River/Stream | Tr- Muddy Creek |
| Coordinates | 41.70270, -91.55750 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 23 ft |
| Dam Height | 23 ft |
| Dam Length | 740 ft |
| Year Completed | 1999 (27 years old) |
Storage & Hydraulics
| NID Storage | 156 acre-ft |
| Max Storage | 156 acre-ft |
| Normal Storage | 42 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | Dovetail Development Company |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA03395 |
| Federal ID | IA03395 |
| More Info | State Dam Safety Program |