Water Supply Lake is an earth dam located in Linn County, Kansas. It carries a Significant hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 32 ft32 ft tall and 1,450 ft long, taller than 74% 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 Water Supply Lake
The primary purpose of Water Supply Lake 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 Mound City, City of (local government).
The dam stands 32 feet tall and stretches 1,450 feet across, creates a reservoir covering 148 acres, has a maximum storage capacity of 3,462 acre-feet, and collects water from a drainage area of 5 square miles.
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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 04/08/2022.
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Location
| State | Kansas |
| County | Linn |
| Coordinates | 38.12884, -94.89131 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 32 ft |
| Dam Height | 32 ft |
| Dam Length | 1,450 ft |
Storage & Hydraulics
| NID Storage | 3,462 acre-ft |
| Max Storage | 3,462 acre-ft |
| Normal Storage | 1,773 acre-ft |
| Surface Area | 148 acres |
| Drainage Area | 5 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Mound City, City of |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 04/08/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | KS07334 |
| Federal ID | KS07334 |
| More Info | State Dam Safety Program |