There will be a complete shutdown of the bridge and a detour to Alternate A1A. The detour route will include intersection improvements at the following intersections to reduce impacts to traffic flow:

  • Alt A1A at Old Dixie Hwy
    • Shift the intersection to the southwest
    • Addition of signal
    • Lengthening of the northbound Alt A1A to northbound Old Dixie Hwy left turn lane
  • US 1 at SR 706 (Indiantown Rd)
    • Three left turning lanes from northbound US 1 to westbound SR 706 (two left turning lanes currently)
  • SR 706 (Indiantown Rd) at Alt A1A
    • Two left turning lanes from southbound Alt A1A to eastbound SR 706 (single left turning lane currently)
    • Two right turning lanes from westbound SR 706 to northbound Alt A1A
  • Alt A1A at US 1
    • Two right turning lanes from southbound US 1 to westbound Alt A1A

In addition, Intelligent Transportation System (ITS) devices listed below and fiber optic cable will be placed along the entire detour route allowing users to make informed decisions through use of smart technology:

  • Bluetooth travel time devices – provide Palm Beach County with real time travel time information for dissemination to the public
  • Closed Circuit Television (CCTV) Cameras – provide a real time view of the project corridor to quickly detect traffic incidents that may cause a lane blockage
  • Microwave Vehicle Detection System (MVDS) – provide lane by lane traffic data for optimize traffic signal timing

Dynamic Messaging Sign (DMS) – provides information that includes, but not limited to lane blockage information, travel time information as well as the status of the drawbridge along US-1 for the NB and SB approach to the bridge.


Study at a glance Map