Project Timeline and Updates

Project Timeline

Islamorada Transmission Main Replacement Project Update Map

Click here for more info on the Islamorada Transmission Main Replacement Project Work Plan.

Project Updates

Work to replace the original, 40-year-old transmission main (the pipe that carries drinking water from the water treatment plant to your faucets) in Islamorada is underway. While crews will be working (from MM 80 to 84) 24/7 Monday through Friday to replace the transmission main in Islamorada, work will pause for major holidays and events.

Good news, nearly all the pipe has now been installed. While traffic impacts are expected to lessen after March 2024, the project is expected to continue through February 2025.

What work is happening now?

  • Crews are now working in 1,000-foot sections throughout the entire project zone (MM 80 to MM 84) to install service pipe for the master meters and air relief valves.
  • Work may last for two to four days in each section. Please note that barricades may remain in place for seven to 10 days before and after work is completed in each section.

What work will come next?

  • Connections across US 1 will be installed in four locations. When that schedule is finalized, we will share it on our website, Facebook, and X (Twitter) pages.
  • Work to install the remaining 1,600 feet of the transmission main, just south of Tea Table Crossing, is expected to begin in March 2024.
  • Pipe across Whale Harbor Crossing (via directional drill) is expected to be installed in March 2024.

Safety reminders:

  • Left hand turns in the work zone are not permitted by the Florida Department of Transportation. Instead, continue past your destination, make a U-Turn when legal to do so, and make a right hand turn into your destination.
  • The speed limit is 35 MPH through the work zone.

Stay Connected!

If you have questions about the Islamorada Transmission Main Replacement Project, please call (833) 588-5865 or email After-hours support is available at (305) 296-2454.

Follow the FKAA on Facebook and X (Twitter) for updates.

Project Photos

  • Tea Table Crossing: Approximately 900 feet of 42-inch pipe has been laid under the seabed protecting it from high winds and storm surge

Teatable Crossing 42-inch HDPE Pipe 8

  • Approximately 19,750 feet of the new cathodically protected 36-inch pipe has been installed between MM 80 and MM 84. This new transmission main is protected against corrosion and climate effects.

36-inch Steel Pipe 3

Contracted Partners for this Project

  • Wade Trim: Performing design and construction management services. 
  • Michels Pipeline: Performing open-cut trench installation. 
  • DBE Utility Services: Performing Teatable Relief subaqueous crossing. 
  • DBE Utility Services: Performing Whale Harbor subaqueous crossing.