Oknoname 031047 is an earth dam located in Osage County, Oklahoma, built in 1940. It carries a Low hazard potential classification.
Dam profile
NID height · 25 ft25 ft tall and 400 ft long, taller than 50% 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 Oknoname 031047
Oknoname 031047 is a dam in Osage, Oklahoma. The dam is owned by T. Johnson (private). It impounds the Tr-sycamore Cr near Blackburn.
The dam stands 25 feet tall and stretches 400 feet across, creates a reservoir covering 6 acres, and has a maximum storage capacity of 300 acre-feet. Completed in 1940, the structure is well-established, with more than 75 years of service.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 11/26/2001. That was over 24 years ago.
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Location
| State | Oklahoma |
| County | Osage |
| Nearest City | Blackburn |
| River/Stream | Tr-sycamore Cr |
| Coordinates | 36.47371, -96.57458 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 400 ft |
| Year Completed | 1940 (86 years old) |
Storage & Hydraulics
| NID Storage | 300 acre-ft |
| Max Storage | 300 acre-ft |
| Normal Storage | 160 acre-ft |
| Surface Area | 6 acres |
| Max Discharge | 700 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Other |
| Owner | T. Johnson |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 11/26/2001 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OK12949 |
| Federal ID | OK12949 |
| More Info | State Dam Safety Program |