Vincent
Taylor helped build Chesapeake City’s over-head bridge
I was in the Pacific Theater in World War II,
and when I got home I took a job as a surveyor for the contractor who was
working on the bridge project. I did the survey work for the bridge piers. I
shot all of the grades, did all of the transit work, and ran all of the levels.
Then, about nine months later, I was invited to work with the steel contractor
who constructed the bridge. My job was a rivet inspector, and when I wasn't
checking rivets I worked with their surveying engineer, doing a lot of taping
and measuring. We had to check grades to put on the piers and put marks on
there for the steel men to set their steel. That had to be nearly perfect.
Now, when we did the measuring for those steel
beams, we used piano wire. For instance, when we measured the area that spanned
the water—between the two double piers—we used the wire and calibrated it for
stretch and heat and all that. The distance between those piers was 550 feet, I
believe. Temperature expansion for steel piano wire is .50645 per foot. Yes, we
were up there 130 feet doing the measuring—two men on each side. When you do
that kind of work you have to have a spring balance; for whatever the tensor is
you have to pull a certain amount of pounds' pressure. That accounts for the
sag in the wire. It's very precise work.
There was a close call on that bridge. It
happened after the span was closed. One day a skid crane operator started
jerking on one of the temporary piers, trying to pull it out of there. The
bridge shook each time he jerked, and finally he crumbled a flange he was
sitting on with that skid rig, and that let him down so that his boom hit the
top arch of the bridge. That shook the bridge like the devil. It was so bad
that one gang of riveters quit the job the next day. There were several
riveting gangs, and at that time my job was to go behind them and inspect the
rivets. The bad rivets were called "cutouts" because they had to be
cut out and re-riveted. I didn't find as many bad ones as my co-worker did for
some reason. But when an engineer checked my work, it was fine.
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