route maryland route runs south_carolina new_york maryland highway runs miles virginia state line north pennsylvania state line near known length mountain highway primary north south highway highway connects county seat virginia west_virginia south pennsylvania north lane divided highway state portion highway junction near jefferson freeway concurrency frederick highway meets interstate unsigned business route pair connected frederick north south reconstructed state roads 1910s north frederick early 1920s assigned point rocks highway improved section paved early 1930s modern point rocks bridge built late 1930s predecessor destroyed flood frederick freeway constructed 1950s relocated freeway old route downtown frederick maryland route present highway point rocks jefferson constructed late 1960s old road south frederick replaced north frederick bypassed late 1950s mid-1960s respectively upgraded divided highway north frederick early 1980s route description official designations course maryland known virginia state line point rocks north near jefferson frederick north pennsylvania state line near freeway concurrency frederick freeway july designated highway marker honoring completed median july portion designated september entire length highway maryland national_highway_system point rocks frederick enters maryland point rocks named pair mountain peaks cuts maryland virginia highway crosses river lane span bridge passes csx maryland river north bridge meets western terminus clay street serves main street community point rocks heads north lane controlled access road passes mix farmland forest eastern flank north roundabout point rocks road intersections road road passing road reaching partial interchange east jefferson direct access northbound westbound eastbound southbound access provided road interchange turned run concurrently northeast frederick lane freeway highways diamond interchange road cross southwest frederick freeway partial interchange folded diamond interchange partial cloverleaf interchange frederick freeway carries interchange eastern terminus interchange exits north frederick freeway continues east downtown frederick continues north concurrent lane exits freeway partial cloverleaf interchange patrick street heads east downtown frederick west heavily crosses continues north lanes folded diamond interchanges avenue 7th street avenue streets provide access fort home infectious diseases addition avenue leads connects freeway ends partial interchange liberty road frederick continues north lane controlled access expressway directional crossover intersections leaving city frederick crossing highway parallels junction way north hamlet intersects old frederick road crosses fishing creek west closely paralleled west auburn road highway gradually approaches eastern flank northern end auburn road road begins parallel northbound follows eastern boundary west village access main section state park provided intersects southbound lanes follows little hunting creek mountain park accessible short distance north north intersection leaves park boundary enters town diamond interchange unnamed unsigned leads northern end serves commercial area south downtown continues north folded diamond interchange main street highway crosses follows creek mountain road highway intersects unsigned crosses leaves town meets church street diamond interchange crossing creek follows mountain heads northeast farmland meets northern end station road campus main campus lady located west highway athletic complex includes east university meets southern end unsigned intersection serves old turn ramps intersection provide missing movements crosses eastern town interchange main street accessed pair right right interchanges gardens drive unsigned northbound southbound north southbound direction welcome center mason discovery center intersection maryland northern end avenue leads north intersection freeway continues pennsylvania state line highway bypass history laid enter maryland followed current corridor frederick north near connected frederick point rocks end reduced washington frederick highway connected point rocks frederick today original construction early improvements established partially pair frederick connected located northern end market street north frederick frederick ran terminus frederick today junction south mile south designated highways improved state road system frederick highway included new system originally planned build state road north city frederick frederick turn east meet frederick purchased frederick operating company section rebuilt modern road north frederick north near old resurfaced foot wide road road pennsylvania state line paved gaps city frederick resurfaced frederick road followed right way north mill planned route right way frederick resurfaced remainder paved foot wide concrete road south lily road south lily road north modern junction concrete highway extended south junction modern junction year paved assumed maintenance resurfaced market street asphalt city frederick south city limit stadium drive north city limit 9th street commission replaced covered bridge modern concrete arch bridge year widened width feet frederick pennsylvania state line highway point rocks constructed concrete road stages starting paved highway extended west west second section new highway started segment finished completed paving maryland resurfaced asphalt pennsylvania state line south end frederick addition grade separation constructed point rocks bridge ferries crossed point rocks bridge constructed wooden bridge constructed carry double track narrow gauge railroad junction baltimore blast process area iron ore bridge carried wagons horses destroyed june confederate forces general day bridge destroyed second bridge point rocks iron bridge constructed originally followed commerce street canal road access grade crossing maryland end bridge crossed river immediately east modern bridge iron bridge swept away march flood destroyed crossings ferry november plan replace bridges point rocks crossings started construction began march bridge concrete piers completed piers old bridge removed river september year new bridge approaches crossed maryland opened december bridge spans feet foot wide roadway pair foot wide followed temporary approach new bridge commerce street remained vulnerable major floods moved higher ground clay street highway reconstructed widened point rocks relocation frederick relocation north frederick occurred construction began highway cloverleaf interchange serve freeway northern terminus years built adjacent portion south relocated reconstructed widened moved old alignment alternate section freeway frederick freeway built concurrent section frederick freeway original interchange frederick freeway included ramps north south east west portions frederick freeway section frederick freeway opened east frederick temporary half cloverleaf interchange patrick street section featured cloverleaf interchange remainder frederick freeway patrick street placed construction highway constructed lane freeway south interchange avenue northern end near freeway tied existing freeway north patrick street featured interchanges avenue westward extension frederick freeway opened moved north north frederick frederick freeway market street north downtown frederick north city northward extension section freeway section interchange expanded divided highway frederick freeway gained exit numbers year highway interchange 7th street added exit numbers ranged freeway interchange east frederick highway interchange 7th street interchange exit lane section freeway expanded present lane configuration year freeway completed jefferson frederick present alignment construction new highway opened moved new highway joined concurrency jefferson frederick freeway old section westward extension designated extended north following year interchange road opened bypasses expansion north frederick widened downtown north starting year highway relocated ultimate divided highway south intersection roads south mount mary university construction began bypass constructed ultimate divided highway south south bypass included interchange completed interchange originally consisted way ramp northeast quadrant junction old alignment designated interchange built sections bypassed 1960s highway bypassed leaving old alignment bridge road road section construction bypass began following year portion northern end bypass pennsylvania state line opened bypass bypass completed old road town designated constructed old alignment interchange ramps highways expanded divided highway north frederick expanded lanes road continued highway expanded intersection roads south mount mary university south pennsylvania state line near section divided highway extended south interchange project oblique intersection north removed moved extended north new crossing creek present terminus creek road local traffic access perpendicular intersection lane highway expanded lane divided highway interchange completed construction southbound ramps southwest quadrant junction interchange added south connector expansion lane divided highway north frederick completed piece highway pennsylvania state line expanded lanes contemporaneous bypass recent future projects frederick subject multi encompasses corridor highways interchange north intersection road north frederick study started mid-1990s examine upgrades highway transit infrastructure corridor long term project initiated interchange constructed ramps received ramps eastbound year access northbound westbound added frederick freeway interchange exit numbers portions frederick freeway changed present numbers interchange frederick freeway transformed cloverleaf partial cloverleaf interchange access northern end named removed year ramp added westbound northbound roundabout intersection built replaced bridge concrete deck old bridge deteriorating lane width bridge insufficient traffic carried new bridge traffic lanes bike lanes continuous left turn lanes replacement bridge long accommodate future widening construction began spring completed spring new bridge built sections half bridge constructed immediately north old bridge traffic moved half bridge old bridge removed half new bridge constructed place removed bridge completed study examine constructing interchange boulevard north frederick replace present directional crossover intersection design work underway diamond interchange municipal highway serves arterial northeastern city extended west north south meet eastern end crossing boulevard northwestern frederick project intersection removed resulting northern end freeway section extended junction list entire route related routes business route business unsigned business route known avenue highway runs miles junctions south north sides town follows original alignment highway serves campuses home emergency management institutions shrine dedicated person born united_states roman_catholic_church bypass town constructed assigned old alignment south pennsylvania state line business route unsigned truncated present northern end begins intersection opposite county maintained old access northbound requires following southbound median turn intersection replaced standard highway junction heads north lane road immediately intersects old alignment old road crosses business route passes campuses defunct liberal arts college women operations absorbed campus facility home comprises business continues north highway intersects main street passes business route northeast crosses approaching northern terminus traffic northbound business northbound required follow ramp southbound turn interchange continues north unnamed service road parallels southbound direction pennsylvania state line intersection connected way southbound ramp intersection intersection changed remove access northbound business northbound east road immediately intersects old road old alignment north auxiliary routes unsigned auxiliary routes maryland state route number designation designation mile section immediately east intersection north frederick designation mile section center bridge frederick freeway west intersection pearl street city frederick western terminus eastern terminus designation unnamed mile roadway diamond interchange southern edge roadway continues drive west interchange boulevard east boulevard ends frederick road south town limit designation mile section immediately north intersection designation mile section south
U.S. Route 15 in Maryland