REPUBLICAN CITY, Neb.,— The U.S. Army Corps of Engineers at Harlan County Lake is preparing for a closure of the dam to allow the contractor, OCCI Construction of Fulton, Mo., to begin the Tainter Gate Repair Project. During the period from March 2 to March 13, both lanes of the dam will be closed from 7 a.m. to 5 p.m. daily and traffic will be directed to take the designated detour.