Thousand Islands Bridge

The Thousand Islands Bridge is an international bridge over the Saint Lawrence River connecting northern New York in the United States with southeastern Ontario in Canada. Constructed in 1937, with additions in 1959, the bridge spans the United States-Canada border in the middle of the Thousand Islands region, from which it derives its name. The bridge is administered by the Thousand Islands Bridge Authority, an international agency. The actual international border bridge crossing is between Wellesley Island in the United States and Hill Island in Canada.

Thousand Islands Bridge

Official name                                 The Thousand Islands Bridge system

Carries                                           Automotive traffic

Crosses                                          Saint Lawrence River

Locale                                            Wellesley Island, New York, United States

                                                      to Hill Island, (Ontario), Canada

Design                                            Suspension & truss bridge

Longest span                                  American suspension: 800 ft (240 m)

                                                      Canadian suspension: 750 ft (230 m)

                                                      Canadian truss: 600 ft (180 m)

Total length Total                           8.5 mi (13.7 km)

Clearance below                             U.S.: 150 ft (46 m) Canada: 120 ft (37 m)

Beginning date of construction     April 30, 1937

Opening date                                 1937

Structure

The bridge is actually not a single bridge but rather a series of bridges that span parts of the St. Lawrence River, ultimately connecting both banks. The southern end of the bridge connects with Interstate 81 and the northern end of the bridge connects to Highway 401 via Highway 137. There is also an interchange with the Thousand Islands Parkway on the Ontario side.