Thorn Tree Dam is an earth dam located in Warren County, Iowa, built in 1997. It carries a Low hazard potential classification.
Dam profile
NID height · 42 ft42 ft tall and 663 ft long, taller than 88% 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 Thorn Tree Dam
The primary purpose of Thorn Tree Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Thorn Tree Development (private). It impounds the Tr- South River near Indianola.
The dam stands 42 feet tall and stretches 663 feet across, creates a reservoir covering 12 acres, has a maximum storage capacity of 285 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1997, the structure is 29 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 42 feet, this dam is taller than 88% 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 | Warren |
| Nearest City | Indianola |
| River/Stream | Tr- South River |
| Coordinates | 41.34450, -93.58720 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 42 ft |
| Dam Height | 42 ft |
| Dam Length | 663 ft |
| Year Completed | 1997 (29 years old) |
Storage & Hydraulics
| NID Storage | 285 acre-ft |
| Max Storage | 285 acre-ft |
| Normal Storage | 122 acre-ft |
| Surface Area | 12 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | Thorn Tree Development |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA03102 |
| Federal ID | IA03102 |
| More Info | State Dam Safety Program |