United States Highway 89]]> Roadside Improvement--Utah--Logan Canyon]]> Traffic engineering]]> Logan Canyon Study]]> Nuffer, Stanton S.]]> CH2M HILL]]> England, Larry]]> http://uda-db.orbiscascade.org/findaid/ark:/80444/xv03390]]> application/pdf]]> eng]]> Text]]> Utah]]> United States]]> Logan Canyon (Utah)]]> Cache County (Utah)]]> 1980-1989]]> 20th century]]>