Bangor Diverging Diamond Interchange

Traffic Impacts - Hogan Road

Drivers should expect the following traffic patterns. Please use caution and pay attention to signage.
 

  • Southbound I-95: Reduced to single lane under Hogan Rd, this will continue through the winter months.
  • Northbound I-95: Will be reduced to single lane under Hogan Rd in October, this will continue through the winter months.
  • Hogan Rd: Occasional minor daytime lane closures.
  • Active construction areas: 
    • Work zones are currently set up in the median and on both sides of the highway.
    • Rolling roadblocks allowing trucks to access the work zones are being regularly used both northbound and southbound.
    • Striping operations on the interstate from Hogan Rd to Stillwater Exit.  This will be short duration, likely middle of October.
    • Directional bore operation entering and exiting Bangor Mall Blvd in the area of Staples. 

Thank you for your patience and for driving with care through work zones.

View all project updates

This project includes several major components such as the construction of a new bridge, rehabilitation of the existing Hogan Road eastbound bridge, and removal of the Hogan Road westbound bridge. It will also feature new signalized intersections at the interstate ramps and a protected pedestrian sidewalk crossing the interstate between the two remaining bridges. Message boards are in place to inform drivers of the work taking place. Work is expected to be completed by Fall 2029. The contractor on this project is CPM Constructors of Freeport, Maine. This project is a recipient of the Federal Highway Administration (FHWA) RAISE Grant. The contract amount is $56,651,028.90.

Starting on April 20, 2026 we began work on a diverging diamond interchange on I-95 at Exit 187. Crews worked by building the new bridge south of the existing bridges. Most traffic patterns will remain unchanged until the new bridge is completed in late fall 2027. Drivers may encounter occasional disruptions, such as lane reductions or alternating traffic, as crews install new drainage systems and as utility companies relocate poles and wires. Monthly traffic updates will be provided here to ensure awareness of these periodic changes.

Map of planned diverging diamond interchange in Bangor

Why a Diverging Diamond Interchange?

Currently the Exit 187/Hogan Road interchange has safety concerns, congestion and no adequate bicycle and pedestrian access. There are three main issues with the existing interchange design:

  • Safety - there are three high crash locations, with 94 crashes in the latest three year period, 36% of which invovled injuries.
  • Congestion - The Exit 187 interchange is Maine's busiest diamond interchange with an average of about 35,000 vehicles per day.
  • Access - There are no sidewalks or adequate shoulders on the bridge.

A Diverging Diamond Interchange addresses these issues by:

  • Increasing safety by reducing crashes by approximately 50%.
  • Increasing mobility and reducing congestion.
  • Providing for a dedicated bicycle/pedestrian protected path within the width of the existing bridge.