Seaway International Bridge

The Seaway International Bridge is an international crossing connecting New York State, in the United States, and the province of Ontario in Canada. It consists of the South and North Channel Bridges. The South Channel Bridge was opened in 1958, and spans the St. Lawrence Seaway. The North Channel Bridge, opened in 2014, connects the City of Cornwall to Cornwall Island.

North Channel Span of Seaway International Bridge
Coordinates	45.00°N 74.74°W / 45.00; -74.74
Carries	Two lanes of traffic
Crosses	Saint Lawrence River
Locale	Cornwall, Ontario
Maintained by	Seaway International Bridge Corporation
Characteristics
Design	Plate girder bridge
Total length	1,652 m (5,420 ft)
Width	8.2 m (27 ft)
Height	15ft. 6inc.
Load limit	115,000lbs
History
Opened	2014
Statistics
Daily traffic	7,000–9,000 Cars Daily
Toll	$3.75 CDN/$3.00 USD
Location

South Channel Bridge of Three Nations Crossing
Coordinates	45°00′N 74°44′W
Carries	Two Lanes of Traffic
Crosses	Saint Lawrence River
Locale	Cornwall, Ontario/Massena, New York
Maintained by	Seaway International Bridge Corporation
Characteristics
Design	Suspension bridge
Total length	1,060 m (3,480 ft)
Width	8.2 m (27 ft)
Height	unknown
Longest span	275 m (902 ft)
Load limit	115,000lbs
Clearance above	35.5 m (116 ft)
History
Designer	Hugh and Philip Louis Pratley
Opened	1958
Statistics
Daily traffic	7,000–9,000 Cars Daily
Location

The bridge is among the busiest on the Canada–United States border in the state of New York, with about two million crossings a year.[1] It is jointly owned by the Federal Bridge Corporation (a Crown corporation of the Canadian federal government) and the Saint Lawrence Seaway Development Corporation (an agency of the United States Department of Transportation), and is operated by the Seaway International Bridge Corporation, which came under the control of the Federal Bridge Corporation from the Saint Lawrence Seaway Authority in 1998.

Previously known as the Cornwall-Massena International Bridge, the SIBC was a private bridge whose outstanding stock was purchased by the Saint Lawrence Seaway Authority (Canada) and the Saint Lawrence Seaway Development Corporation (U.S.) in 1957. It was incorporated in Canada five years later.

In 2000, the international border crossing that the Seaway International Bridge comprises was named the Three Nations Crossing, in honor of the Mohawks of Akwesasne who inhabit the region.

On January 24, 2014, the opening of a new lower-level bridge marked the official closing of the former high-level North Channel crossing of the Seaway International Bridge. This project was estimated to cost $75 million, entirely funded by the Government of Canada. It was announced in 2010 that the Government of Canada would be going forward with this project that would involve the construction of a new low-level bridge as well as the demolition of the Seaway International Bridge to ensure the longevity of the border crossing, assuring that the former bridge was still in safe driving condition. The high-level Seaway International Bridge was completely demolished in 2015.[2] At the opening ceremony of the new bridge, the first person to make the crossing was Raymonde Champagne, who had also been the first person to cross the high-level bridge in 1962.[3]