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We learn from the passage that a bridge with a high fixed span ----.
Florida's more than 1,000 miles of coastline contain
about 150 drawbridges, more than are found in any
other state. As these bridges age and Florida grows
and changes, many of them now have to be
replaced. But replaced with what? Recently there
have been very many controversies over
drawbridges. One involved the Belleair Beach
Causeway, which was built in 1950. When it
approached the end of its 50-year lifespan, the
choice for a replacement came down to three
options: a drawbridge the same height as the
existing span (21 feet above high tide) but wider, to
accommodate modern traffic levels; a drawbridge
with a height of 45 feet; and a fixed span 65 feet tall.
Each choice had its advantages and disadvantages.
The two drawbridges would have created the least
disruption in nearby communities. Opening a
drawbridge inconveniences motorists, however, and
can cause a dangerous delay for ambulances or in
other emergencies. A drawbridge also costs more to
build and maintain. A high fixed span would be
cheaper and eliminate the delays, but it would
require extensive property acquisition to
accommodate its approaches. It would also tower
over the area and block the views of many residents,
and some tall boats would be unable to fit
underneath. However after much debate and many
hearings, the country board settled on a high fixed
span.