Because the holiday falls on a Tuesday this year, we made some scheduling changes. The only locks that will be open on Tuesday, July 4 are the De Pere and Little Kaukauna locks. Locks in the Fox Valley and Kaukauna will be closed on that day but will be open the Saturday and Sunday before and after the 4th of July. We know mid-week holidays may throw off your planning but just remember: for the record July 4, 1776 was a Thursday!