Florida, USA

First RCC Dam in Florida

The C-51 Reservoir is a regional alternative water supply project for Southeast Florida designed to capture excess storm water currently wasted to tide and causing harm to the Lake Worth Lagoon. Phase I will provide about 17 mil. m³ of storage with an approximate depth of 11 meter - the majority of the storage is below groundlevel. It will also include engineered levees, reinforced concrete spillways, control structures and other facilities.

This project is the first roller compacted concrete dam in Florida and was fully constructed by contractor Phillips & Jordan.

During construction 7.40 m x 2.70 m upstream formwork units (comprised of two 3.70-m forms stacked on top of each other) is cycled in each placement section. The company split the dam into five placements each 400m. The 2.70 m x 1.35 m downstream formwork panels are placed on the horizontal steps and is cycled in further lifts after 3 x 1.20 m steps have been accomplished.

Ray Grayson

Ray Grayson | Senior Project Engineer | Phillips & Jordan

Going with Doka's formwork system has helped P&J stay on schedule, as well as streamline the RCC placement production. Their pricing was competitive, the lead times were reasonable, and deliveries were on time as promised.

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Project data

Year of completion
Construction time
11-months duration
Loxahatchee, Florida
Phillips & Jordan

Building data

Construction method
Structure height
Structure length
Upstream formwork
7.40 m x 2.70 m
Downstream formwork
2.70 m x 1.35 m