Blackburn Harold E
Blackburn Harold E is an earth dam located in Pawnee County, Oklahoma, built in 1940. It carries a Low hazard potential classification.
About Blackburn Harold E
Blackburn Harold E is a dam in Pawnee, Oklahoma. The dam is owned by Ryan J Blackburn (private). It impounds the Carpenter Cr near Cleveland.
The dam stands 40 feet tall and stretches 325 feet across, creates a reservoir covering 12 acres, and has a maximum storage capacity of 500 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 12/01/2010. That was over 15 years ago.
At 40 feet, this dam is taller than 87% of dams nationwide.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Oklahoma |
| County | Pawnee |
| Nearest City | Cleveland |
| River/Stream | Carpenter Cr |
| Coordinates | 36.24290, -96.57952 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 40 ft |
| Dam Height | 40 ft |
| Dam Length | 325 ft |
| Year Completed | 1940 (86 years old) |
Storage & Hydraulics
| NID Storage | 500 acre-ft |
| Max Storage | 500 acre-ft |
| Normal Storage | 190 acre-ft |
| Surface Area | 12 acres |
| Max Discharge | 2,450 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Other |
| Owner | RYAN J BLACKBURN |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 12/01/2010 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | OK12763 |
| Federal ID | OK12763 |
| More Info | State Dam Safety Program |