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Did you know
Political Factoid
The
average
age of all
607,400 bridges in
the United States is
42 years
(i.e., built before 1974)
with many built before 1950.
cf.
001
,
7359
-30-
Collected by students of
Zo^o University
Last updated
*
2013-12-28
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© 2013 Zo^o University
All Rights Reserved
