Noralyn N-9
Noralyn N-9 is an earth dam located in Polk County, Florida, built in 1961. It carries a Low hazard potential classification.
About Noralyn N-9
The primary purpose of Noralyn N-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 Fort Meade.
The dam stands 40 feet tall and stretches 23,860 feet across, creates a reservoir covering 1,214 acres, and has a maximum storage capacity of 25,133 acre-feet. Completed in 1961, 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 40 feet, this dam is taller than 87% of dams nationwide.
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Location
| State | Florida |
| County | Polk |
| Nearest City | Fort Meade |
| River/Stream | Unnamed Pond |
| Coordinates | 27.80000, -81.84000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 40 ft |
| Dam Height | 40 ft |
| Dam Length | 23,860 ft |
| Year Completed | 1961 (65 years old) |
Storage & Hydraulics
| NID Storage | 25,133 acre-ft |
| Max Storage | 25,133 acre-ft |
| Normal Storage | 25,133 acre-ft |
| Surface Area | 1,214 acres |
| Max Discharge | 20 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 | FL00193 |
| Federal ID | FL00193 |
| More Info | State Dam Safety Program |