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Project Description

Financial Project Numbers: 412531-5
Project Limits: Immediately off the south shore of I-275 on the east end of the Howard Frankland Bridge
Estimated Construction Cost: $937,000
Contractor: Cone & Graham
Start Date: September 7, 2010
Completed: January 11, 2011

About this Project
The Florida Department of Transportation's contractor constructed rock erosion barriers to protect the shoreline from erosion that ultimately could affect the roadway. Also, over the years, wave action had eroded the sand in this area taking sea grass and mangroves with it.

The purpose of this project was to protect the shoreline along the interstate and promote sand buildup behind the barriers and the return of desired vegetation. Once the barriers were built, a large number of plants were placed along the existing shoreline -- including Red Mangrove, Smooth Cordgrass, and Saltmeadow Cordgrass.

The barriers were constructed using rocks ranging from 8 inches to 3 feet in diameter. The piles are about 5 feet tall, 3 feet across the top and 23 feet across the bottom. There are two barriers perpendicular to I-275 at the west end of the project area. There is also a series of 11 barriers that get closer to the shore as you move east.

Traffic Flow
Traffic was not impacted as lane closures were not needed for this work.