Plantation Key Transmission Main Replacement Project

Project Overview
Now through April 2026, crews will be working to install a new transmission main in Plantation Key. The transmission main is the pipe that carries your drinking water from the water treatment plant to your faucet. The existing pipe has exceeded its useful lifespan; this work is critical.

What?
We are replacing six miles of the existing 30-inch transmission main in Plantation Key with a new 36-inch cathodically-protected steel water main.

Why? 
Because clean drinking water is a MUST. As pipes age, they become more susceptible to corrosion, leaks, storm surge, and other effects. The existing pipe is beyond its expected lifespan. The new pipe is designed to be unaffected by local aggressive soils and subterranean tidal flows.

When? 
Crews will work 24-hours a day, Monday through Friday and pause work for major holidays, events, and inclement weather. Weekend work may be needed from time-to-time. The 32,165 feet of linear pipe is expected to be installed by April 2026. 

Where?
The new transmission main will be installed in phases along US1, from Snake Creek to Julep Road.

FKAA Plantation Key Phase Map February 2026

Project Progress 

As of March 6, 2026, there has been 30,043 feet of new pipe installed. That’s 27,943 feet of pipe along US 1 installed via open cut trench and 2,100 feet of HDPE installed underwater at Tavernier Creek Crossing. Crews are currently working just north of Ocean Blvd on US 1 (MM 91). The goal is to install a total of 34,205 feet of new pipe by April 2026 (extended from March 2026).

Here’s what you can expect on US 1 from Ocean Blvd to Sunrise Drive:

From 8 p.m. to 6 a.m.

  • One northbound and one southbound lane open along US 1
  • Access onto US 1 from Coconut Row and Lowe St will be restricted, please use Ocean Blvd

As the crew continues to move north, any new traffic impacts will be shared 24 to 48 hours in advance. Please remember to maintain 35 MPH through the work zone and that FDOT does not permit left-hand turns through the work zone. Law enforcement will be on site during peak hours to help maintain traffic flow.

FKAA Traffic Flow Ocean to Sunrise (1)

As of February 2, 2026, the crew installing the new drinking water pipe started work north of Tavernier Creek Crossing. They expect to reach the Ocean Blvd intersection at the end of February. Pipe installation, originally scheduled to be completed in March 2026, is now estimated to be completed in April 2026. The delay is due to the high ground water levels, especially during King Tides, and unforeseen utility line conflicts.

As work continues, we will keep you updated every step of the way. Here’s what the traveling public can expect:

FKAA Traffic Flow Bessie to Coconut Row (2)

Traffic and Access Update

Traffic control plan has been approved by the Florida Department of Transportation 

Current Traffic & Safety Updates

  • FDOT does not permit left-hand turns in the work zone 
  • Maintenance of Traffic (MOT) will be reduced to ease traffic impacts

Bessie Rd/Old Highway/the Creekside Inn Intersection

  • Local traffic only on Old Highway 
  • Officers will be present during peak hours 
  • Southbound turning lane at Creekside Inn Intersection is restricted



North Side of Tavernier Creek Crossing


Tavernier Towne Shopping Plaza:


  • The south exit (closest to Dunkin Donuts) is fully open (as of February 27, 2026). 
  • At the Ocean Blvd intersection, left-hand turns onto US 1 northbound will be restricted Sunday through Thursday from 8:30 p.m. to 6:30 a.m., through March. A police officer will be on site from 7:30 p.m. to 11:30 p.m. to assist with traffic flow.
  • Vehicles can go right to exit the plaza and head southbound to Bessie Road. Then make a U-turn to head north on US 1.
  • We expect the crew to be working for approximately 4 weeks in this area.  

What the traveling public can expect: 

  • A rolling lane closure is in effect 24/7 through the work zone
  • 35 MPH through the work zone
  • Access to all businesses will be maintained and businesses will be notified in advance of work taking place near their location
  • FDOT does not permit left-hand turns in the work zone.

Stay Connected

If you have questions about the Plantation Key Transmission Main Replacement Project, please email a local FKAA customer service representative at community@fkaa.com. After-hours support is available at (305) 296-2454.

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