Port Mayaca Lock and Dam
The Port Mayaca Lock is a navigable lock and dam on the Okeechobee Waterway (St. Lucie Canal), adjacent to U.S. Route 441 and U.S. Route 98 at Canal Point, in Martin County, Florida, United States.
Port Mayaca Lock is open daily from 6:00am to 9:30pm.
The total cost of construction was $13.1 million.
This structure was created to help raise the water level in the lake, for the purpose of retaining fresh water for agricultural use, city water supply, and for navigation. It also serves for regulating flood control water into the Everglades during hurricane season.
The lock chamber is 56 feet (17 m) wide by 400 feet (120 m) long, and 14 feet (4.3 m) deep. The lift distance between the St. Lucie Canal and Lake Okeechobee is normally 1/2 to 2 feet (0.61 m). The channel width is 100 feet (30 m), and 8 feet (2.4 m) deep.
The lock gates are "sector gates" (pie-slice shaped), and are made of steel. The spillway is ogee-type concrete, with 4 vertical lift gates.
The discharge capacity is 14,800 cubic feet per second (420 m3/s).
- "New Port Mayaca Lock FL" (PDF). Retrieved 2010-08-25.
- "Port Mayaca Lock - Florida, United States". Marinas.com. Retrieved 2010-08-25.
- American Canal Society Report
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