route utah state utah route long north south state highway spanning miles central state serves local road paralleling occasionally interstate portions arizona north northeast wyoming serve separate corridors provides access national parks arizona connects logan state interstate established state road initially extended north following extension canada border interstate constructed roughly paralleling west replacing south process rerouted southern utah northern arizona old roadway route description arizona border enters utah south inside canyon national recreation area miles north crosses near page arizona leaving recreation area passing small town highway curves west grand staircase national monument stays near monument southern boundary crossing east passing south cliffs grand staircase city meets north end alternate route south arizona abruptly turns north begins climbing staircase begins utah scenic stretches north canyon junction ascended canyon carved near white cliffs meets junction travelers turn reach national park final step highway follows alongside highest point southern utah east end summit elevation feet north long valley junction descends valley meeting scenic highway leads canyon junction highway continues north valley narrows significantly opening near town valley create meets near kingston valley narrows canyon carries river confluence overlap interstate beginning follows freeway old alignment driven state maintained north overlaps business highways stay mainly west half valley faster bypassing communities surface road passes south curves east rising alongside exits downtown pre freeway alignment overlaps following separate alignment northwest area short uses roadway business spur city bypasses follows route town passes meets finally turns away turns east curving northeast formed tributary valley small cities meets south end connecting scenic turns east climbs valley reaching summit hill elevation feet parallels leg highway descending canyon junction near ghost town flooded landslide paralleled merge near junction form overlapped routes follow northwest splits north skirts west edge merges old south downtown north salt_lake_city parallels distance overlaps interstate following old main highway salt_lake_city los_angeles number numerous state highways connect including meets branch heads northeast connecting bypassing salt_lake_city north merges exit built near old road gap elevation feet routes split direct interchange north traffic exit exit turn east factory outlet drive follow frontage road location split way downtown salt_lake_city marked state street major north south street ends utah state capitol passing sandy murray enters salt_lake_city intersection south followed north blocks capitol turns south following alignment west north west rejoining route area modern runs block median crossing line main street median passing historic avenue station leaves downtown west curves northwesterly meeting modern terminus victory road leaves salt_lake_city exit acts frontage roads south junction splits northeast passing northerly curve west removes highway main street merges exit bypass old road narrow strip land separates leaves exit legacy parkway ends proceeds north freeway portion include exit numbers based mileage opposed overlapping freeway ends crosses surface alignment directions heads north lane road foothills east hill air force base crossing enters traverses washington boulevard rejoining old south downtown continues general northerly direction thin strip finally turns east away corridor idaho border meets current alignment southern outskirts turning east overlap city southeast bypass alignment routes head east southern finally leaving valley great salt lake small valley contains elevation feet turns north bypassing town west continues ascend dry canyon summit elevation feet small valley leads lane roadway turns east descends valley heads northeast bypassing east downtown logan continues northerly logan idaho splits east beginning long climb utah begins logan follows canyon past access road ski area state line elevation range highest point utah descends east slope curves shore elevation final segment idaho state line follows lake west shore location constrained west history created went far north travelers continue salt_lake_city highway extended north canada border near national park mid-1930s dispute utah idaho wyoming settled officials decided favor utah idaho placing near logan split northeasterly left twice travels today weather route wyoming preferred routing left instead beginning 1950s interstate constructed replacing traffic south leading route hand follows independent corridors south north logan truncated follows final alignment old southern running northerly follows succession linear valleys denver opened branch later main line extended subsidiary railway rail line reached farther south residents towns travel north old county road canyon poorly constructed steep grades rough surface designated highway south valleys state road soon initially route summit went entering east direct route considered serving communities required difficult construction covered loose sand reach summer commission added branch allowing communities access state road system connection west junction years later december commission added road sand hills system began construction sand clay road connection north added following rail line canyon providing route salt_lake_city state legislature state road system include short list given law federal aid projects entire route north kept including approaches roads addition short extension south arizona added amendment removed original route added second route west effectively forming large triangular loop town old route south added state road system early 1920s assigned numbers major state roads route arizona northerly state route numbers officially adopted legislature main route loop defined new state route followed branch loop removed south half remaining system despite designations majority instead marked remainder marked state route route ran north south central northern utah 1920s state route left logan ran east built federal aid forest road road north idaho added system state route legislature added state route alternate southern entrance left merged present numbered branch state route stretching north north east logan state highway 1930s extension took north later logan idaho removed overlapped logan mid-1950s year construction began canyon dam legislature designated new state route heading east southeast arizona route dam adjacent bridge replaced miles original state highway 1910s south end remainder new roadway area previously served improved roads route past dam initially designated alternate route completed february instead mainline better route weather old route south route alternate major numbering changes utah state highway system 1960s 1970s beginning construction interstate highways culminating renumbering state route numbers concurrent types dropped entirely majority changes visible public signs continued display following changes state routes related particular cut roadway south major intersections
U.S. Route 89 in Utah