RIVER VALLEY MIDDLE/HIGH SCHOOLPrincipal Jim Polite jim.polite@rivervalleyschools.org Vice Principal/Athletic Director Heather Briney-Kelm heather.briney-kelm@rivervalleyschools.org School Hours 7:50 A.M. to 2:50 P.M. Half Day Schedule 7:50 a.m. – 10:50 a.m.