Logan Canyon (Utah)]]> United States Highway 89]]> Utah]]> Roadside improvement--Utah--Logan Canyon]]> Roads--Design and construction]]> Logan Canyon Study]]> Utah Department of Transportation]]> CH2M Hill (Firm : Salt Lake City, Utah)]]> Utah Department of Transportation]]> CH2M HILL]]> http://uda-db.orbiscascade.org/findaid/ark:/80444/xv07669]]> application/pdf]]> eng]]> Text]]> Logan Canyon (Utah)]]> Utah]]> United States]]> 1980-1989]]> 20th century]]>