Simpson Dam is an earth dam located in Okaloosa County, Florida, built in 1968. It carries a Low hazard potential classification.
Dam profile
NID height · 20 ft20 ft tall and 450 ft long. 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 Simpson Dam
The primary purpose of Simpson Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by P.e. Simpson (michael Carter) (private). It impounds the Rum Still Branch near Milligan.
The dam stands 20 feet tall and stretches 450 feet across, creates a reservoir covering 3 acres, and has a maximum storage capacity of 67 acre-feet. Completed in 1968, the structure is well into its service life at over 50 years old.
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 05/05/1994. That was over 32 years ago.
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Location
| State | Florida |
| County | Okaloosa |
| Nearest City | Milligan |
| River/Stream | Rum Still Branch |
| Coordinates | 30.86000, -86.53000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 450 ft |
| Year Completed | 1968 (58 years old) |
Storage & Hydraulics
| NID Storage | 67 acre-ft |
| Max Storage | 67 acre-ft |
| Normal Storage | 57 acre-ft |
| Surface Area | 3 acres |
| Max Discharge | 360 cfs |
Ownership & Safety
| Purpose | Recreation |
| Owner | P.e. Simpson (michael Carter) |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 05/05/1994 |
| Emergency Action Plan | No |
Identifiers
| NID ID | FL00461 |
| Federal ID | FL00461 |
| More Info | State Dam Safety Program |