UPDATE:

The Kansas City Marathon is the same day as the wedding.  (Yikes!)  Below is a link to the road closures.  All of the roads should be open in time for the wedding, but it might be a little inconvenient if you are trying to get around town beforehand.

 

http://www.waddellandreedkansascitymarathon.org/ContentDir/marathon_course_maps_39.pdf

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