Sun Valley Lake Sediment Basin is an earth dam located in Ringgold County, Iowa, built in 2019. It carries a Significant hazard potential classification.
Dam profile
NID height · 40 ft40 ft tall and 870 ft long, taller than 86% 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 Sun Valley Lake Sediment Basin
Sun Valley Lake Sediment Basin is a dam in Ringgold, Iowa. The dam is owned by Sun Valley Iowa Lake Association (private). It impounds the Tr-sand Creek near Westerville.
The dam stands 40 feet tall and stretches 870 feet across, creates a reservoir covering 15 acres, has a maximum storage capacity of 307 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 2019, the structure is relatively new.
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.
At 40 feet, this dam is taller than 86% of dams nationwide.
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Location
| State | Iowa |
| County | Ringgold |
| Nearest City | Westerville |
| River/Stream | Tr-sand Creek |
| Coordinates | 40.84350, -94.08410 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 40 ft |
| Dam Height | 40 ft |
| Dam Length | 870 ft |
| Year Completed | 2019 (7 years old) |
Storage & Hydraulics
| NID Storage | 307 acre-ft |
| Max Storage | 307 acre-ft |
| Normal Storage | 230 acre-ft |
| Surface Area | 15 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | Sun Valley Iowa Lake Association |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA04446 |
| Federal ID | IA04446 |
| More Info | State Dam Safety Program |