Hanawalt
Hanawalt is an earth dam located in Roger Mills County, Oklahoma, built in 1965. It carries a Undetermined hazard potential classification.
About Hanawalt
Hanawalt is a dam in Roger Mills, Oklahoma. The dam is owned by Allen Jack L. (private). It impounds the Tr-canadian River near Trail.
The dam stands 25 feet tall and stretches 400 feet across, creates a reservoir covering 7 acres, and has a maximum storage capacity of 60 acre-feet. Completed in 1965, the structure is well into its service life at over 50 years old.
The most recent inspection on record was 08/07/2006. That was over 19 years ago.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Data note: Hazard potential describes the consequences if a dam failed; it does not predict the likelihood of failure. Inspection, condition, and emergency-plan fields can be incomplete or delayed. Check state dam-safety officials and local emergency managers for official guidance.
Undetermined HazardNot Rated ConditionEmergency Action Plan: Not Required
Location
| State | Oklahoma |
| County | Roger Mills |
| Nearest City | Trail |
| River/Stream | Tr-canadian River |
| Coordinates | 35.90170, -99.83500 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 400 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 60 acre-ft |
| Max Storage | 60 acre-ft |
| Normal Storage | 40 acre-ft |
| Surface Area | 7 acres |
| Max Discharge | 1,230 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Other |
| Owner | ALLEN JACK L. |
| Owner Type | Private |
| Hazard Classification | Undetermined |
| Condition Assessment | Not Rated |
| Last Inspection | 08/07/2006 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OK21026 |
| Federal ID | OK21026 |
| More Info | State Dam Safety Program |