Dd No 18-8 is an earth dam located in Brown County, Kansas, built in 1999. It carries a Significant hazard potential classification and has a fair condition assessment.
Dam profile
NID height · 39 ft39 ft tall and 800 ft long, taller than 85% 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 Dd No 18-8
The primary purpose of Dd No 18-8 is debris control. The dam is designed to catch sediment, rocks, and debris carried by flowing water — particularly important in areas prone to mudslides or heavy erosion. The dam is owned by Wolf River Wjd No 66 (local government). It impounds the Wolf River-tr.
The dam stands 39 feet tall and stretches 800 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 284 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. 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 05/21/2021.
At 39 feet, this dam is taller than 85% of dams nationwide.
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Location
| State | Kansas |
| County | Brown |
| River/Stream | Wolf River-tr |
| Coordinates | 39.82896, -95.51240 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 39 ft |
| Dam Height | 39 ft |
| Dam Length | 800 ft |
| Year Completed | 1999 (27 years old) |
Storage & Hydraulics
| NID Storage | 284 acre-ft |
| Max Storage | 284 acre-ft |
| Normal Storage | 58 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Debris Control |
| Owner | Wolf River Wjd No 66 |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 05/21/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | KS07873 |
| Federal ID | KS07873 |
| More Info | State Dam Safety Program |