Kelly's bridge presentation

1. Bridges
By Kelly

2. Arch Bridges
• An arch bridge is a bridge constructed in the shape of an arch,
and is usually made of steel, stone, or another durable
substance
• An example of an arch bridge is the Alexander Hamilton bridge
in New York and goes over the Harlem river, built in 1952 and
now has 8 lanes

3. Suspension Bridge
• A suspension bridge a bridge that has a deck suspended by cables
or rods from other cables or chains that hang between two towers and
are anchored at both ends
• An example is the Golden Gate Bridge in California, built in 1937

4. Beam Bridge
• A beam bridge is structure made of a bunch of steel or concrete
beams that are parallel to traffic and support the roadway
directly above them
• An example of a beam bridge is Lake Pontchartrain Causeway in
New Orleans, started to be built in 1948, and it took 8 years to
complete

5. Cable Stay Bridge
• Cable Stay Bridges are bridges that consist of one or more towers,
with cables supporting the bridge deck.
• An example of a Cable Second Severn Crossing in Wales, built in 1966
• There was a poem written about the tolls on this bridge:
• Two lands at last connected
Across the waters wide,
And all the tolls collected
On the English side.
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