C-18 is an other dam located in Palm Beach County, Florida, built in 1952. It carries a Low hazard potential classification.
Dam profile
NID height · 20 ft20 ft tall and 100 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 C-18
The primary purpose of C-18 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 Loxahatchee Slough near Indiantown.
The dam stands 20 feet tall and stretches 100 feet across, creates a reservoir covering 22 acres, has a maximum storage capacity of 220 acre-feet, and collects water from a drainage area of 150 square miles. Completed in 1952, 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. The most recent inspection on record was 07/12/1905. That was over 121 years ago.
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Location
| State | Florida |
| County | Palm Beach |
| Nearest City | Indiantown |
| River/Stream | Loxahatchee Slough |
| Coordinates | 26.87280, -80.24500 |
Physical Characteristics
| Dam Type | Other |
| NID Height | 20 ft |
| Dam Height | 10 ft |
| Dam Length | 100 ft |
| Year Completed | 1952 (74 years old) |
Storage & Hydraulics
| NID Storage | 220 acre-ft |
| Max Storage | 220 acre-ft |
| Normal Storage | 176 acre-ft |
| Surface Area | 22 acres |
| Drainage Area | 150 sq mi |
| Max Discharge | 1,000 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Sfwmd |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 07/12/1905 |
| Emergency Action Plan | No |
Identifiers
| NID ID | FL36025 |
| Federal ID | FL36025 |
| More Info | State Dam Safety Program |