G103 Control Structure is an other dam located in Polk County, Florida, built in 1965. It carries a Low hazard potential classification.
Dam profile
NID height · 24 ft24 ft tall and 70 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 G103 Control Structure
The primary purpose of G103 Control Structure is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Sfwmd (local government). It impounds the Zipperer Canal near Poinciana.
The dam stands 24 feet tall and stretches 70 feet across, creates a reservoir covering 5,400 acres, has a maximum storage capacity of 49,000 acre-feet, and collects water from a drainage area of 42 square miles. Completed in 1965, 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.
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 | Poinciana |
| River/Stream | Zipperer Canal |
| Coordinates | 27.94300, -81.35590 |
Physical Characteristics
| Dam Type | Other |
| NID Height | 24 ft |
| Dam Height | 15 ft |
| Dam Length | 70 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 49,000 acre-ft |
| Max Storage | 49,000 acre-ft |
| Normal Storage | 35,100 acre-ft |
| Surface Area | 5,400 acres |
| Drainage Area | 42 sq mi |
| Max Discharge | 734 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Sfwmd |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | No |
Identifiers
| NID ID | FL13004 |
| Federal ID | FL13004 |
| More Info | State Dam Safety Program |