Noralyn N-13 is an earth dam located in Polk County, Florida, built in 1969. It carries a Low hazard potential classification.
Dam profile
NID height · 40 ft40 ft tall and 4,950 ft long, taller than 86% of U.S. dams with a recorded height. 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-13
The primary purpose of Noralyn N-13 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 Bartow.
The dam stands 40 feet tall and stretches 4,950 feet across, creates a reservoir covering 415 acres, and has a maximum storage capacity of 10,725 acre-feet. Completed in 1969, 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 86% of dams nationwide.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Florida |
| County | Polk |
| Nearest City | Bartow |
| River/Stream | Unnamed Pond |
| Coordinates | 27.82000, -81.85000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 40 ft |
| Dam Height | 40 ft |
| Dam Length | 4,950 ft |
| Year Completed | 1969 (57 years old) |
Storage & Hydraulics
| NID Storage | 10,725 acre-ft |
| Max Storage | 10,725 acre-ft |
| Normal Storage | 10,725 acre-ft |
| Surface Area | 415 acres |
| Max Discharge | 82 cfs |
Ownership & Safety
| Purpose | Debris Control |
| Owner | The Mosaic Company |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | No |
Identifiers
| NID ID | FL00204 |
| Federal ID | FL00204 |
| More Info | State Dam Safety Program |