International Avenue Bridge

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International Avenue Bridge
Coordinates 45°09′40″N 67°18′11″W / 45.161°N 67.303°W / 45.161; -67.303Coordinates: 45°09′40″N 67°18′11″W / 45.161°N 67.303°W / 45.161; -67.303
CarriesNew Brunswick Route 1
CrossesSt. Croix River
LocaleSt. Stephen, New Brunswick
Construction start2006
OpenedNovember 16, 2009

The International Avenue Bridge is an international bridge across the St. Croix River, connecting the town of St. Stephen, New Brunswick in Canada with the town of Calais, Maine in the United States.

It is the third, busiest, and newest bridge connecting the two communities, in addition to the Ferry Point International Bridge and the Milltown International Bridge.[1] The International Avenue Bridge serves commercial, cargo, trucking, passenger vehicles, campers, RVs, buses and other heavy and through traffic, while both the Ferry Point and Milltown crossings remain in use for passenger vehicles and local traffic, which could also use the International Avenue Bridge.[2]


The bridge received US approval in 2006.[3]

Although both facilities began actual operations with the bridge opening on November 16, 2009, the United States Customs facility in Calais was officially opened by Senator Susan Collins on November 23,[4] while the Canada Customs facility in St. Stephen was officially opened by Prime Minister Stephen Harper on January 8, 2010.[2] The new bridge represents the first new Canada–US border crossing between the US and Canada in over 40 years.

Connecting routes[edit]

On the New Brunswick side, since October 2012, the bridge connects to New Brunswick Route 1, a four-lane freeway proceeding northeast from the border, through Saint John, and connecting with New Brunswick Route 2, the main route of the Trans-Canada Highway, at River Glade near Moncton.

In Maine, the bridge connects to US 1, a major route along Maine's Atlantic coast and its border areas with New Brunswick; and Maine State Route 9, a link to Interstate 95 at Bangor.


  1. ^ "Chapter 1: Eastern Maine". United Divide: A Linear Portrait of the USA/Canada Border. The Center for Land Use Interpretation. Winter 2015.
  2. ^ a b "Importance of trade corridor recognized". The Telegraph-Journal, January 9, 2010.
  3. ^ "U.S. gives go ahead to third bridge", St. Croix Courier, September 26, 2006.
  4. ^ "Calais border crossing officially opened". Bangor Daily News, November 24, 2009.