Noralyn N-8 is an earth dam located in Polk County, Florida, built in 1967. It carries a Significant hazard potential classification.
Dam profile
NID height · 24 ft24 ft tall and 5,500 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 Noralyn N-8
The primary purpose of Noralyn N-8 is tailings. Tailings dams contain waste material from mining operations — typically a slurry of finely ground rock left over after valuable minerals have been extracted. These structures require ongoing monitoring because tailings can contain heavy metals and other contaminants. The dam is owned by The Mosaic Company (private). It impounds the Peace River near Bartow.
The dam stands 24 feet tall and stretches 5,500 feet across, creates a reservoir covering 179 acres, and has a maximum storage capacity of 4,300 acre-feet. Completed in 1967, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life.
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Location
| State | Florida |
| County | Polk |
| Nearest City | Bartow |
| River/Stream | Peace River |
| Coordinates | 27.82000, -81.84000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 24 ft |
| Dam Height | 24 ft |
| Dam Length | 5,500 ft |
| Year Completed | 1967 (59 years old) |
Storage & Hydraulics
| NID Storage | 4,300 acre-ft |
| Max Storage | 4,300 acre-ft |
| Normal Storage | 3,800 acre-ft |
| Surface Area | 179 acres |
| Max Discharge | 200 cfs |
Ownership & Safety
| Purpose | Tailings |
| Owner | The Mosaic Company |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Emergency Action Plan | No |
Identifiers
| NID ID | FL00669 |
| Federal ID | FL00669 |
| More Info | State Dam Safety Program |