maryland route maryland route state highway state maryland state highway runs miles north connects western anne communities communities baltimore washington international marshall airport airport highway connects airport interstate forms airport loop highway connects airport airport related services originally served main highway baltimore fort george highway included modern west constructed shortly established world war late 1910s portion originally built 1930s went round upgrades early 1940s strategic importance world war highway originally passed area occupied airport relocated north late 1940s construction airport south late 1950s highway expanded lanes interchanges perimeter airport 1960s route description begins intersection road highway continues south county maintained orchard parkway leads station community heads north telegraph road begins lane divided highway reduces lane road passes industrial area state highway expands lane divided highway shortly diamond interchange freeway continues north lane road center turn lane crosses center turn lane ends highway approaches center highway intersects heads west east expands lane divided highway approaches single point urban interchange highway undivided lane road intersection road long ramp westbound northbound unsigned continues north aviation boulevard joins airport loop highway parallels amtrak northeast corridor carries trail meets eastern end heads east immediately loops west crosses state highway railroad way car rental facility highway intersects unsigned leads gradually curves east crosses immediately partial cloverleaf interchange metropolitan boulevard highway passes expands divided highway intersection grade intersection access rail line station intersection leaves airport loop intersection aviation boulevard highway turns north camp road intersects begins parallel lane road center turn lane light rail away east shortly highway intersection road center turn lane ends enters intersects light rail line time begins parallel shortly station center community highway intersects maple road expands lane divided highway shortly partial cloverleaf interchange baltimore access eastbound westbound highway reduces lane road passes station south baltimore center continues northeast away light rail line highway parallels passes entering reaches northern terminus way intersection jack street baltimore city limits heads south governor north city street national_highway_system southern terminus stretch sections serve passenger transport links southern terminus perimeter airport portions national_highway_system principal history applied numbers state highways assigned current corridor brooklyn park portion modern highway originally constructed portion road ran hamlet crossroads middle airport highway paved baltimore ferry road second section improved highway planned south crossroads section highway current intersection west built foot wide concrete road construction highway high priority entrance world war remainder highway highway railroad southwest newly established collectively called paved foot wide concrete brooklyn park paved concrete period time poorly constructed portion road asphalt relocated railroad crossing highway completed old road station road west tracks old camp road east telegraph road built concrete road sections highway constructed right angle turn camp road south road section completed later point north old mill road gap filled shortly widened feet outbreak world war designated road strategic importance connect baltimore highway reconstructed foot wide asphalt surfaced concrete road swapped numbers road relocated foot wide road north junction way construction friendship international airport highway interchange friendship international airport access road designated later started year airport opened completed south airport ran concurrently current intersection west current highway connect modern alignment north airport reservation assumed present alignment west highway relocated south site interchange ultimate divided highway old alignment current portion north transferred county maintenance expressway spur built expressway baltimore included grade intersection junction replaced present interchange expanded divided highway interchange grade separation west airport built state highway expanded lane divided highway north adjacent east west portion built expanded lane divided highway interchange single point urban interchange built expanded lanes interchange interchange southern terminus rolled junction list entire route auxiliary route designation mile way ramp westbound northbound southwest airport ramp included clockwise direction airport loop spur near southern end official designation spur assigned
Maryland Route 170