Broward County Intracoastal Waterway Dredging / Deepening

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DETAILS

Client: Florida Inland Navigation District (FIND)
Value: $19,500,000
Project Date: 2016-2017
Project Cut-sheet: Download

SUMMARY

In November of 2015, Cashman Dredging was awarded the contract to deepen the Intracoastal Waterway (ICW) in Fort Lauderdale, Florida. The client was the Florida Inland Navigational District (FIND), with Taylor Engineering working as its Construction Manager. The work spanned roughly 2.5 miles on the Intracoastal, starting at the 17th Street Bridge to just north of the Las Olas Bridge. The objective of the project was to deepen the ICW to a navigable depth of 15 feet, with an allowable over-depth of +2-feet; totaling 185,000 cubic yards. The project was permitted for upland disposal only, which was achieved via offloading at the Dredge Material Management Area (DMMA) located inside Port Everglades. In early March of 2016 we broke ground, and it went something like this…

Temporary Haul Road
Part of the design for the project required Cashman to build a road from our dredge material offload site located in Port Everglades through the thick neighboring jungle of mangroves. The intent of the road was to eliminate any disruption to Port traffic, thus diverting our dredge material-hauling trucks—all 12,931 of them—in and out through this one-way road. The road construction consisted of installing a lift of stabilizing stone, with a section midway of reinforced concrete for the turn, and the final run of 4’x16’ timber mats through the forested section. The purpose of the timber section was to allow for any rain water to drain directly into the soil. The road was finished off with guardrails at the turn, and concrete barriers with attenuator barrels to protect Florida Power & Light’s transmission towers that were located inside the mangroves. After much anticipation, we received our roadway permits, and construction began. We had some creatures that played the role of observers both during the roadway construction and throughout the project: African Vervet monkeys. Legend has it they were released from a testing laboratory several decades ago and found refuge in this protected mangrove region. They have thrived ever since, with no known ecological effect on the area to date.

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