(Fayette County, IN)--Yet another Whitewater Valley highway is about to shut down for an extended period of time.  Beginning one week from today, State Road 121 will shut down between Connersville and Nulltown.  That closure will allow crews to replace a pipe that is 25 feet underground.  121 will be closed for a month.  It joins State Road 101 in Franklin County and U.S. 35 in Wayne County, which both are already closed until late in the summer.  The Quakertown Causeway is also closed, and U.S. 52 south of Brookville is affected by bridge reconstruction.