West Polk A-9
West Polk A-9 is an earth dam located in Polk County, Florida, built in 1968. It carries a Low hazard potential classification.
About West Polk A-9
The primary purpose of West Polk A-9 is debris control. The dam is designed to catch sediment, rocks, and debris carried by flowing water — particularly important in areas prone to mudslides or heavy erosion. The dam is owned by The Mosaic Company (private). It impounds the Unnamed Pond near Bradley.
The dam stands 36 feet tall and stretches 12,100 feet across, creates a reservoir covering 389 acres, and has a maximum storage capacity of 15,619 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.
At 36 feet, this dam is taller than 83% of dams nationwide.
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Location
| State | Florida |
| County | Polk |
| Nearest City | Bradley |
| River/Stream | Unnamed Pond |
| Coordinates | 27.83000, -81.99000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 36 ft |
| Dam Height | 36 ft |
| Dam Length | 12,100 ft |
| Year Completed | 1968 (58 years old) |
Storage & Hydraulics
| NID Storage | 15,619 acre-ft |
| Max Storage | 15,619 acre-ft |
| Normal Storage | 15,619 acre-ft |
| Surface Area | 389 acres |
| Max Discharge | 54 cfs |
Ownership & Safety
| Purpose | Debris Control |
| Owner | THE MOSAIC COMPANY |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | No |
Identifiers
| NID ID | FL00202 |
| Federal ID | FL00202 |
| More Info | State Dam Safety Program |