Frd No T-4
Frd No T-4 is an earth dam located in Brown County, Kansas, built in 1964. It carries a High hazard potential classification and has a poor condition assessment.
About Frd No T-4
The primary purpose of Frd No T-4 is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Walnut Creek Wd No 1 (local government). It impounds the Terrapin Creek-tr near Hamlin.
The dam stands 40 feet tall and stretches 1,000 feet across, creates a reservoir covering 13 acres, has a maximum storage capacity of 645 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1964, 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 03/16/2022.
At 40 feet, this dam is taller than 87% 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 | Brown |
| Nearest City | Hamlin |
| River/Stream | Terrapin Creek-tr |
| Coordinates | 39.92723, -95.67400 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 40 ft |
| Dam Height | 40 ft |
| Dam Length | 1,000 ft |
| Year Completed | 1964 (62 years old) |
Storage & Hydraulics
| NID Storage | 645 acre-ft |
| Max Storage | 645 acre-ft |
| Normal Storage | 74 acre-ft |
| Surface Area | 13 acres |
| Drainage Area | 2 sq mi |
| Max Discharge | 972 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | WALNUT CREEK WD NO 1 |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Poor |
| Last Inspection | 03/16/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | KS02025 |
| Federal ID | KS02025 |
| More Info | State Dam Safety Program |