Fourmile Creek Roadfill Dam
Fourmile Creek Roadfill Dam is an earth dam located in Geary County, Kansas, built in 1970. It carries a High hazard potential classification and has a fair condition assessment.
About Fourmile Creek Roadfill Dam
Fourmile Creek Roadfill Dam is a dam in Geary, Kansas. The dam is owned by Kansas Dept Of Transportation (state). It impounds the Fourmile Creek-tr near Junction City.
The dam stands 41 feet tall and stretches 1,100 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 134 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1970, the structure is well into its service life at over 50 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. 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 04/20/2023.
At 41 feet, this dam is taller than 88% of dams nationwide.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Kansas dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Kansas |
| County | Geary |
| Nearest City | Junction City |
| River/Stream | Fourmile Creek-tr |
| Coordinates | 39.09398, -96.86483 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 41 ft |
| Dam Height | 29 ft |
| Dam Length | 1,100 ft |
| Year Completed | 1970 (56 years old) |
Storage & Hydraulics
| NID Storage | 134 acre-ft |
| Max Storage | 134 acre-ft |
| Normal Storage | 7 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | KANSAS DEPT OF TRANSPORTATION |
| Owner Type | State |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 04/20/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | KS00728 |
| Federal ID | KS00728 |
| More Info | State Dam Safety Program |