Painting the Chesapeake Bay Bridge
![horizontal rule]](images/starbar.gif)
In 1952, it cost $45 million to build the
eastbound span of the Chesapeake Bay Bridge. Now it's time to paint it.
Painting the bridge is a very expensive job. Seventy-one million dollars
have been budgeted to paint just the eastbound span. The westbound span
will be done in a few years.
Several factors contribute to making this project so expensive:
- The work has to be done when
traffic is lightest . This means the painters will have to work
at night. They will get paid a bonus because they will not be working
during regular working hours.
- We want clean air and clean water . That's
very expensive because before bridge can be painted, the old coats of
paint must be removed. The old coats can't be painted over because the
base of the paint has deteriorated so that painting over the top of it
would not last any time at all. They have to take the bridge down to
cold steel.
- The last coat before steel is lead-based, and lead
is not good for living things . At least 400 tons of lead-tinged
paint will be removed in just the first phase of the five-year project.
Why so many tons?
- Because the first phase covers 1.8 million square
feet of surface on towers and cables on the bridge.
- Once the old paint is blasted off the surface by
steel particles shot by high-pressure air, the lead paint can't be
allowed to drift down to the Chesapeake because it could affect the
marine life.
- It can't be allowed to float through the air,
because the workers would inhale it and it could drift ashore.
- Because of this, a structure will be built
wherever paint is being removed, so none can escape, and a fan with a
filter will suck up particles.
The new paint is
expected to last 20
years. |