Thousand Islands International Bridge
|2 lanes of I-81 and Highway 137
|Saint Lawrence River
|Wellesley Island, New York, United States to Hill Island, Ontario, Canada
|The Thousand Islands Bridge system
|Thousand Islands Bridge Authority
|suspension, open-spandrel deck arch bridge & truss bridge
|Total: 8.5 mi (13.7 km)
|American suspension: 800 ft (240 m)
Canadian suspension: 750 ft (230 m)
Canadian truss: 600 ft (180 m)
|U.S.: 150 ft (46 m)
Canada: 120 ft (37 m)
|April 30, 1937
|August 18. 1938
|Varies $3.75–$23.50 (USD) or $4.75–$31.00 (CAD)
The Thousand Islands International Bridge (French : Pont des Mille-îles) is an American-maintained international bridge system 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 bridges span the Canada–US border in the middle of the Thousand Islands region. All bridges in the system carry two lanes of traffic, one in each direction, with pedestrian sidewalks.
The Thousand Islands International Bridge system is a series of five bridgesspanning the St. Lawrence River. From south to north, they are:
The bridges's southern end connects with Interstate 81, and the northern end with Highway 401 via Highway 137. There is also an interchange with the Thousand Islands Parkway on the Ontario side.
The actual international border bridge crossing is a set of two parallel 90 ft (27 m) bridges between Wellesley Island in the United States and Hill Island in Canada.
The bridge system is administered by the Thousand Islands Bridge Authority, a New York State public benefit corporation, whose seven board members (Four Americans and three Canadians) are appointed by the Jefferson County Board of Legislators.The Authority also maintains and administers Boldt Castle.
Tolls are paid only by cash, E-ZPass, or Commuter Discount Fare Trip Tags, which are prepaid for either 16 trips (US$20.00) or 72 trips (US$32.00). The Bridge Authority is a member of the multi-state E-ZPass consortium, and introduced electronic toll collection in June 2019.No other ETC transponders are currently offered or accepted, although the Bridge Authority offers sales of transponders of Florida's SunPass for the convenience of Canadian travelers en route to Florida.
The Thousand Islands Border Crossing connects the towns of Alexandria Bay, New York and Ivy Lea, Ontario at the Thousand Islands Bridge.
It is the westernmost of the three St. Lawrence River crossings, and is very busy, with up to two-hour waits in the summer.The US border station at Alexandria Bay is sometimes called Thousand Islands. The Canada border station of Lansdowne is sometimes called Gananoque, for the nearby town where international ferry service is provided. These border stations are also responsible for inspecting vessel traffic between the countries. The US has seasonal vessel inspection stations on Heart Island and at Cape Vincent, NY, and Canada has seasonal vessel inspection stations at Rockport, Ontario and Gananoque, Ontario. Both Canada Border Services Agency (CBSA) and the U.S. Customs and Border Protection (CBP) travel to selected ports and marinas on request for inspections.
The entire Thousand Islands Bridge system took sixteen months to build, beginning with a ground-breaking on April 30, 1937. 49.03 million in 2022 dollars).Completed ten weeks ahead of schedule, the bridges opened on August 18, 1938, with the ribbon cut by President Franklin D. Roosevelt and Prime Minister William Lyon Mackenzie King. Its total cost was $3.05 million (equivalent to $
Shortly after opening, the bridge displayed aerodynamic oscillation problems that were quickly corrected via structural upgrades.
In its first year of operation, over 118,000 vehicles crossed the bridge.Today, annual crossings exceed 2,000,000 vehicles.
The Thousand Islands constitute a North American archipelago of 1,864 islands that straddles the Canada–US border in the Saint Lawrence River as it emerges from the northeast corner of Lake Ontario. They stretch for about 50 miles (80 km) downstream from Kingston, Ontario. The Canadian islands are in the province of Ontario and the U.S. islands in the state of New York.
Gananoque is a town in the Leeds and Grenville area of Ontario, Canada. The town had a population of 5,383 year-round residents in the 2021 Canadian Census, as well as summer residents sometimes referred to as "Islanders" because of the Thousand Islands in the Saint Lawrence River, Gananoque's most important tourist attraction. The Gananoque River flows through the town and the St. Lawrence River serves as the southern boundary of the town.
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Boldt Castle is a major landmark and tourist attraction in the Thousand Islands region of the U.S. state of New York. Open to guests seasonally between mid-May and mid-October, it is located on Heart Island in the Saint Lawrence River. Heart Island is part of the Town of Alexandria, in Jefferson County. Originally a private mansion built for American millionaire George Boldt, it is now maintained by the Thousand Islands Bridge Authority as a tourist attraction.
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King's Highway 137, commonly referred to as Highway 137, is a provincially maintained highway in the Canadian province of Ontario that connects the northern end of Interstate 81 in the U.S. state of New York with Highway 401 via the Canadian span of the Thousand Islands Bridge. While this road connected to the international bridge when it opened in August 1938, it was not designated as a King's Highway until 1965. Highway 137 passes through a portion of the Canadian Shield, a geographic feature which aided construction of the three Canadian spans of the Thousand Islands Bridge. These bridges, all of different designs, travel 538 m (1,765 ft) across the Saint Lawrence River. Highway 137 is 4.3 km (2.7 mi) in length and is located entirely within the United Counties of Leeds and Grenville.
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The Thousand Islands Border Crossing connects the towns of Alexandria Bay, New York, and Ivy Lea, Ontario, on the Canada–US border. The crossing is via the international span of the Thousand Islands Bridge. The Thousand Islands bridge, which was completed in 1938, is actually a system of five bridges and the island roadways connecting them. The international span, which crosses a small rift between Wellesley Island in the US and Hill Island in Canada, is only 90 feet (27 m) in length. A second, parallel span was built in 1959 to accommodate congestion at the ports of entry. The US and Canada border stations are located at the opposite ends of this span.