interstate interstate runs entirely maryland interstate runs miles route parole near north near baltimore interstate primary highway baltimore connects baltimore washington international airport links northern anne communities shortest primary interstate highway constructed corridor maryland route parole south interstate closely follows course built late 1910s early 1920s expanded divided highway late 1950s north highway follows freeway built mid-1950s segment originated lane portion early 1970s interstate introduced state maryland successfully obtained interstate mileage baltimore freeway federal government state decided build highway current corridor corridor partial freeway access construction began late 1980s new construction segment expanded incorporated junction upgraded portion corridor south upgraded spot interstate highway standards early 1990s truncated interchange rebuilt late 1980s early 1990s upgraded expanded lanes mid-1990s complex process included reconstruction interchanges interchange reconstructed upgraded route description begins john highway run concurrently unsigned edge community parole west freeways meet semi directional interchange ramp eastbound merges collector distributor road extends east freeway interchange heads northwest lane freeway speed limit miles hour freeway crosses defense highway passes south west sides crosses tributaries bacon ridge branch partial interchange comprises pair long ramps generals highway interchange allows access southbound state highway northbound interstate gains extra lane direction ramps extra lanes split freeway partial interchange eastern end north interstate curves northeast partial interchange northern end robert highway state highways meet ramp partial cloverleaf interchange immediately west sweeping curve movements highways continues north lane freeway closely paralleled east western edge park highways cross area slightly interstate partial cloverleaf interchange access northbound continue parallel highway northern end partial cloverleaf interchange southern end business robert highway interchange includes ramp northbound northbound south intersection business freeway continues north west meets road ramp partial cloverleaf interchange interchange exit ramps directions temporarily gains extra lanes direction partial cloverleaf interchange road access southbound aviation boulevard forms airport loop surrounding baltimore washington international airport continues crosses branch immediately highway ramp partial cloverleaf interchange baltimore provides access transit line terminal station final interchange baltimore interstate crosses curtis creek interchange includes ramp westbound ramp eastbound merge inside interstate drops lanes reaches northern terminus north loop ramp westbound highway continues pair ramps merge spur governor continuation includes ramp westbound allows access interchange official interstate dedicated served area maryland senate death worked secure funding highway passed dedication bill installed pair signs noting dedication near parole like interstate highways national_highway_system entire length shortest digit mainline interstate digit interstate united_states history predecessor highways modern highway path followed corridor new cut road south intersection highway intended second route complement highway east western route later known general highway applied portion construction highway underway new highway completed gravel road new cut road north concrete road near highway designated new highway connect baltimore area portion new highway reconstructed completed concrete road south extended virginia baltimore reconstructed reconstruction eliminated dangerous curves particularly near expanded highway width feet follows early 1930s course portion predecessor highway built lane new cut road north baltimore construction lane freeway began august construction bridges highway bridges completed dual roadways interchange ramps southern end bypass constructed starting march concrete surfaced highway completed february northernmost portion bypass including adjacent portion baltimore constructed december september moved bypass adjacent portion projects completed small portion north added project direct connection southern approach segment completed opened tunnel approach highways november constructed interchanges partial cloverleaf interchange business new cut road ramp partial cloverleaf interchange diamond interchange current ramp partial cloverleaf interchange half cloverleaf interchange allowing access access expanded divided highway southern end highway second set lanes including new bridge constructed existing roadway reconstructed second set lanes built west wide median allowed businesses site median northbound southbound lanes construction stretch relocated present course replaced pair ramps freeway southern bypass constructed section highway south built lane segment east highway ramps partial interchange ramp interchange lacked access northbound eastbound westbound southbound interstate designation construction despite existence upcoming construction divided highway corridors baltimore freeway connecting proposed early form relieve congestion portion today constructed proposed continued south toll road section freeway south removed state plans completed present end state maryland unsuccessfully petitioned interstate designation baltimore freeway passage state successful obtaining interstate mileage baltimore corridor howard amendment provided minor adjustments additional costs incurred mileage canceled interstate highways baltimore washington area interstate funding assured commissioned baltimore figure things best route baltimore study discovered western route following corridors require fewer acquisitions homes businesses compared extension south corridor june announced plans original route numbering plan approved transportation officials november meeting include current route plus parole west proposal included auxiliary interstate highways follow east west follow pair intersections rescinded approval plan june meeting approved essentially original plan june meeting east west segment replaced withdrawn request state maryland concept unsigned applied maryland approved new designations june meeting portion proper constructed section south placed construction sections march section highway road west interchange opened december construction road intersection started july opened april interchange southern terminus originally constructed partial interchange tying collector distributor lanes ramps eastbound westbound highways added reconstruction reconstruction existing highway reconstruction divided highway complex operation involved temporary openings lane shifts construction new roadways reconstruction existing roadways phases years improvement reconstruction interchange modern ramps westbound eastbound built eastbound ramp ramps constructed loop ramp westbound removed interchange new ramps reconstructed interstate highway standards expanded lanes august functionality loop ramp westbound restored october ramp approach westbound added allow access reconstruction divided highway business began sections section north business north boulevard began work included construction ramp northbound veterans highway south business section north boulevard reconstructed starting second section included construction boulevard interchange southbound roadway rebuilt place southbound lanes new northbound lanes built immediately east southbound lanes february new northbound lanes opened access veterans highway removed old northbound lanes reconstructed lane road later year anne agreed accept maintenance related construction concluded road transfer agreement july truncated opened october signage removed reconstruction business began november stewart avenue bridge interstate south interchange replaced ramps northbound eastbound westbound southbound added freeway reconstructed interstate standards sections middle section reconstructed concurrently segment west starting segment including interchange opened november reconstruction middle section finished july sections business reconstructed starting january roadway section completed march northern half interchange reconstructed project new loop ramp northbound westbound new ramp northbound completed ramp southbound removed widening project pair ramps southbound replace removed ramp constructed final piece construction reconstruction interchange began concluded exit list entire route
Interstate 97