Traffic engineering]]> Roadside improvement--Utah--Logan Canyon]]> Highway 89]]> Floyd, J. Whitney]]> Burton, C. Taylor]]> Iverson, Floyd]]> Crane, Harold S.]]> Meyers, Grant E.]]> application/pdf]]> eng]]> Text]]> Logan (Utah)]]> Cache County (Utah)]]> Utah]]> United States]]> 1960-1969]]> 20th century]]> Roadside improvement--Utah--Logan Canyon]]> Highway 89]]> Floyd, J. Whitney]]> Linford, Ernest]]> application/pdf]]> eng]]> Text]]> Salt Lake City (Utah)]]> Salt Lake County (Utah)]]> Utah]]> United States]]> 1960-1969]]> 20th century]]>