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Cathy Wurzer
St. Paul, Minn.

Wisconsin is monitoring bridges with sensor technology

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Inspector's bucket
Bridge inspectors hang underneath the John Blatnik high bridge between Duluth and Superior, Wisconsin.
MPR Photo/Bob Kelleher
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Inspector's bucket
Bridge inspectors hang underneath the John Blatnik high bridge between Duluth and Superior, Wisconsin.
MPR Photo/Bob Kelleher