Thousand Islands Bridge Hill Island in Canada. Thousand Islands International Bridge system is a series of five 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. The bridge suffered aerodynamic-related structural problems (oscillations) shortly after its opening, these were quickly corrected via structural upgrades. The bridge system is administered by the Thousand Islands Bridge Authority, a New York State public benefit
Ten Thousand Islands at the northern end of the Ten Thousand Islands was occupied year-round 3,500 years ago, and other sites are presumed to have been inundated by a rise in sea level. The material culture of the Indians living in the Ten Thousand Islands was distinctive enough to be classified as, at least, a sub-area of the Glades culture area. Almost all of the Ten Thousand Islands are currently uninhabited. The largest, Chokoloskee Island, which is connected to Everglades City by a causeway, has about 400 permanent residents. Other islands have been sporadically inhabited in the 19th and 20th centuries by individuals