East Lenox Reservoir Dam is an earth dam located in Adams County, Iowa, built in 1913. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 25 ft25 ft tall and 700 ft long, taller than 50% 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 East Lenox Reservoir Dam
The primary purpose of East Lenox Reservoir Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by City of Lenox (local government). It impounds the Tr-middle Platte River near Maloy.
The dam stands 25 feet tall and stretches 700 feet across, creates a reservoir covering 31 acres, has a maximum storage capacity of 510 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1913, the structure is over a century 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 08/04/2021.
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Location
| State | Iowa |
| County | Adams |
| Nearest City | Maloy |
| River/Stream | Tr-middle Platte River |
| Coordinates | 40.90100, -94.54820 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 700 ft |
| Year Completed | 1913 (113 years old) |
Storage & Hydraulics
| NID Storage | 510 acre-ft |
| Max Storage | 510 acre-ft |
| Normal Storage | 220 acre-ft |
| Surface Area | 31 acres |
| Drainage Area | 1 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | City of Lenox |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/04/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA01816 |
| Federal ID | IA01816 |
| More Info | State Dam Safety Program |