Lift Bridge
The aerial lift bridge at Duluth, Minnesota, USA looking east with Lake Superior in the bg.
An icon of Duluth, this aerial lift bridge is the gateway to the Duluth harbor on Lake Superior and dates back to 1905. The structure originally operated as a transporter bridge (basically a suspended ferry), but was converted to an aerial lift bridge in 1930. It has a span of about 500 feet and a clear height for ships of about 138 ft. The bridge was added to the National Register of Historic Places on May 22, 1973.
Lake Superior is amazing and is aptly named. Lake Superior contains 10% of all planet Earth's fresh surface water. It covers 82,000 sq km (31,700 sq mi) with an average depth of 147 metres or 483 feet. The deepest point in the lake is 405 metres or 1,333 feet. It contains more water than all of the other Great Lakes combined. There is enough water in Lake Superior to cover all of the land area of North AND South America with water one foot deep. The maximum wave ever recorded on Lake Superior was 9.45 metres or 31 feet high. If all water were drained from the North American continent, the low point of Lake Superior would be the lowest point of land on the continent.
Lift Bridge
The aerial lift bridge at Duluth, Minnesota, USA looking east with Lake Superior in the bg.
An icon of Duluth, this aerial lift bridge is the gateway to the Duluth harbor on Lake Superior and dates back to 1905. The structure originally operated as a transporter bridge (basically a suspended ferry), but was converted to an aerial lift bridge in 1930. It has a span of about 500 feet and a clear height for ships of about 138 ft. The bridge was added to the National Register of Historic Places on May 22, 1973.
Lake Superior is amazing and is aptly named. Lake Superior contains 10% of all planet Earth's fresh surface water. It covers 82,000 sq km (31,700 sq mi) with an average depth of 147 metres or 483 feet. The deepest point in the lake is 405 metres or 1,333 feet. It contains more water than all of the other Great Lakes combined. There is enough water in Lake Superior to cover all of the land area of North AND South America with water one foot deep. The maximum wave ever recorded on Lake Superior was 9.45 metres or 31 feet high. If all water were drained from the North American continent, the low point of Lake Superior would be the lowest point of land on the continent.