Size
The bridge consists of five fixed spans and one 244 ft (74 m) long vertical-lift span. It is 1,382 feet (421 m) in total length. The 880,000 pound (400,000 kg) counterweights are suspended from the two 165 ft (50 m) tall towers. While the river is at low level the bridge is 49 feet (15 m) above the water, causing it to be raised an average of 200 times per month. As of 2001, the average daily traffic was 30,500 vehicles. The bridge was designed by Waddell & Harrington, which also designed the Steel and Interstate bridges. John Alexander Low Waddell invented the modern-day vertical-lift bridge.
Read more about this topic: Hawthorne Bridge
Famous quotes containing the word size:
“There are some persons we could not cut down to size without diminishing ourselves as well.”
—Jean Rostand (1894–1977)
“In mathematics he was greater
Than Tycho Brahe, or Erra Pater:
For he, by geometric scale,
Could take the size of pots of ale;
Resolve, by sines and tangents straight,
If bread and butter wanted weight;
And wisely tell what hour o’ th’ day
The clock doth strike, by algebra.”
—Samuel Butler (1612–1680)
“For truly I tell you, if you have faith the size of a mustard seed, you will say to this mountain, ‘Move from here to there,’ and it will move; and nothing will be impossible for you.”
—Bible: New Testament, Matthew 17:20.