Timeline: bridge 2

Jan 1, 1345

Pontie Vecchio

Medieval bridge builders borrowed the form of the stable Roman arch bridge, but began to build upward, layering on dwellings and places of business. Florence’s Ponte Vecchio (“Old Bridge”) is one of the most famous inhabited bridges, known both for its stunning setting and for the fact that it is still in use. Spanning the narrowest point of the Arno, the Ponte Vecchio sustained significant damage in the great Florence flood of 1966.

Jan 1, 1764

Jade Belt

Also called camels back bridge
example of mood bridge style
connects the green river with white marble and stone

Jan 1, 1781

Iron bridge

first fully constructed bridge with all iron
Closed to all transportation other than walking
Workers built it one piece at a time

May 30, 1883

Brooklyn bridge

First to use underwater caission chambers
the structure was built with many technical difficulties and dangerous conditions

Nov 1, 1885

Garabit Viaduct

Eiffel made this bridge
He based his design on open triangles
These triangles help support the bridge, by letting the wind pass through it

Mar 4, 1890

Firth of Forth bridge

An example of cantilever bridge design
The cantilever design is made for small structures and projects

Sep 11, 1916

Quebec bridge collapse

something wrong in design made the bridge itself heavier than the weight limit it can hold it collapsed twice

May 27, 1937

Golden gate bridge

built in an earthquake zone
Until 1964 is was the biggest suspension span at 8,981ft and also held the record for the worlds tallest suspension towers until 1998

Nov 7, 1940

Tacoma Narrows Bridge Collapse

Collapsed 4 months after the grand opening
no one was killed
designed to be more elligant than the Golden Gate bridge

May 21, 1953

First Iron Bridge

Was made in Philadelphia and its Countryside/Lehigh Valley

Dec 15, 1967

Silver Bridge Collapse

Collapsed because of heavy traffic loads

May 9, 1980

Sunshine Skyway

The Sunshine Skyway once collapsed
When rebuilt, the Skyway was so close to the water, if you looked out the window, you could see the water up close

Jun 28, 1983

Mianus Bridge

One of the pins in the construction sheared causing it to be very dangerous and collapsed, with a tracter trailer truck crossing over and then broke through to the ground

Oct 21, 1994