interstate interstate abbreviated mile interstate highway spur route maryland western end toll road maryland route connector interchange provides access park ride lot station despite number connect road continues west surface road way interchanges freeway completed late 1980s connect grove metro station planned segment built time opening east resulted interchange designation road leading grove metro station route description begins short distance west interchange heading northeast lane freeway southwest interchange road continues named washington real estate developer interchanges boulevard surface road highway passes woods northwest shopping center southeast reaches interchange point turns east runs residential neighborhoods north business parks south trees separating road areas freeway curves northeast comes interchange past highway passes commercial development reaching bridge csx short distance later comes trumpet interchange road provides access station red line point ends freeway continues east connector history originally proposed late 1970s freeway opened december connecting grove metro station half years construction freeway lanes wide miles long construction cost million federal funds paying ninety percent cost state maryland portion cost funded portion proceeds gas tax increase prior opening driving grove metro station involved exiting grove road passing traffic lights arrive station opening remainder planned built time shortest interstate new_york baltimore construction began head east time ramp westbound shifted new alignment lanes shifted allow construction interchange construction segment completed february road opening traffic february result completion eastern terminus truncated west end freeway connection grove metro station exit list entire route
Interstate 370