Wrg Bl 04 is an earth dam located in Polk County, Florida, built in 1956. It carries a Low hazard potential classification.
Dam profile
NID height · 45 ft45 ft tall and 9,870 ft long, taller than 90% 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 Wrg Bl 04
The primary purpose of Wrg Bl 04 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 Saddle Creek near Lakeland.
The dam stands 45 feet tall and stretches 9,870 feet across, creates a reservoir covering 230 acres, has a maximum storage capacity of 7,300 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1956, 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 45 feet, this dam is taller than 90% 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 | Lakeland |
| River/Stream | Saddle Creek |
| Coordinates | 27.87690, -81.88730 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 45 ft |
| Dam Height | 40 ft |
| Dam Length | 9,870 ft |
| Year Completed | 1956 (70 years old) |
Storage & Hydraulics
| NID Storage | 7,300 acre-ft |
| Max Storage | 7,300 acre-ft |
| Normal Storage | 6,900 acre-ft |
| Surface Area | 230 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 50 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Tailings |
| Owner | The Mosaic Company |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | No |
Identifiers
| NID ID | FL11029 |
| Federal ID | FL11029 |
| More Info | State Dam Safety Program |