List of roads in Howard County, Maryland

B

Road	Route	Places	Landmarks	Notes
Baltimore National Pike	Edmondson Avenue (in Baltimore) to Frederick	Ellicott City West Friendship Cooksville Lisbon	Brick House on the Pike	"Baltimore National Pike" is the designation for US-40 throughout Howard County. West of Ellicott City, US-40 merges into I-70, and the two routes share a path until Frederick. This part of I-70 is also known as Baltimore National Pike.
Banneker Road	Little Patuxent Pkwy to Shepherd Square	Town Center	Banneker Fire Station	Named after Benjamin Banneker
Bethany Lane	Old Frederick Road to Baltimore National Pike	Ellicott City		Continues north of MD-99 as Old Mill Road and south of US-40 as Centennial Lane.
Brighton Dam Road	Ten Oaks Road to Market Street (in Montgomery County	Clarksville	Triadelphia Reservoir Brookeville Woolen Mill and House Montrose
Broken Land Parkway	The Mall in Columbia to Guilford Road	Columbia Owen Brown Kings Contrivance	The Mall in Columbia Lake Elkhorn	Exit 18 off US-29. Exit 14 off Maryland Route 32

C

Road	Route	Places	Landmarks	Notes
Cedar Lane	Harpers Farm Road to Guilford Road	Harper's Choice Hickory Ridge Simpsonville	Howard County General Hospital Simpsonville Mill James and Anne Robinson Nature Center	Continues south of Guilford Road as Pindell School Road. A second road known as "Cedar Lane" also exists north of this one from Rivendell Lane to a dead end just north of MD-108.
Centennial Lane	Baltimore National Pike to Clarksville Pike	Ellicott City	Centennial High School Centennial Park	Continues north of Baltimore National Pike as Bethany Lane and south of Clarksville Road as Beaverbrook Road. Centennial Lane was built in 1876 as a shortcut through Burliegh Manor property between Clarksville and Ellicott City.
Clarksville Pike	US-29 interchange to Montgomery County line (at Patuxent River)	Clarksville Wilde Lake Dorsey's Search Highland	Centennial Park Middle Patuxent Environmental Area Rocky Gorge Reservoir	Exit 21 off US-29. MD-108 continues east of US-29 interchange as Old Annapolis Road, and in Montgomery County as "Ashton Road".

D

Road	Route	Places	Landmarks	Notes
Dobbin Road	Oakland Mills Road to Snowden River Parkway	Long Reach	East Columbia Business District
Dorsey Road	Scarlet Oak Drive to dead end southeast of Race Road (in Anne Arundel County)	Elkridge	Dorsey MARC rail station	Continues northwest as Meadowridge Road. There is another Dorsey Road in Anne Arundel County, most of which is designated MD-176.

F

Road	Route	Places	Landmarks	Notes
Frederick Road	Two discontinuous roads: Lakeview Drive to Baltimore National Pike Baltimore National Pike to Baltimore Street (in Baltimore)	Ellicott City Lisbon Cooksville West Friendship	Roberts Inn	Known as Main Street in historic Ellicott City

G

Road	Route	Places	Landmarks	Notes
Gorman Road	Kindler Road to Washington Boulevard (in Prince George's County	Savage, North Laurel		Becomes Johns Hopkins Road in Fulton
Governor Warfield Parkway	Little Pauxent Parkway to Little Pauxent Parkway	Columbia Town Center	An entrance to The Mall in Columbia	Continues south of Little Pauxent Parkway as Banneker Road. Named after former Maryland governor Edwin Warfield.
Guilford Road			Mt. Moriah Lodge No. 7

H

Road	Route	Places	Landmarks	Notes
Hanover Road	Old Washington Road to Deep Run Bridge	Elkridge		Continues in Anne Arundel County to Ridge Road.
Hoods Mill Road	Woodbine Road to Frederick Road	Cooksville		Exit 76 off I-70

I

Road	Route	Places	Landmarks	Notes
Ilchester Road	Montgomery Road to Patapsco River. Becomes River Road in Baltimore County, and ends at Frederick Road.	Ellicott City, Catonsville	Saint Mary's Seminary Ruins, Patapsco Valley State Park, Patterson Viaduct

J

Road	Route	Places	Landmarks	Notes
Johns Hopkins Road	Pindell School Road to Gorman Road		Applied Physics Laboratory	Exit 15 off US-29

L

Road	Route	Places	Landmarks	Notes
Landing Road	Montgomery Road to Ilchester Road	Elkridge	Rockburn Branch Park, Cascade Falls
Lawyers Hill Road	Montgomery Road to Levering Avenue	Elkridge	Lawyers Hill Historic District
Levering Avenue	Lawyers Hill Road to Main Street (Elkridge)	Elkridge	Lawyers Hill Historic District, Thomas Viaduct, Patapsco Valley State Park
Little Patuxent Parkway	Waterloo Road to end at circle to itself	Town Center	The Mall in Columbia Howard County General Hospital Howard Community College Merriweather Post Pavilion
Long Gate Parkway	Montgomery Road to Meadowbrook Lane	Ellicott City		Exit 1A off MD-100, used to access MD-103 from US-29 northbound.

M

Road	Route	Places	Landmarks	Notes
Main Street (Ellicott City)	Name for Frederick Road in historic Ellicott City	Ellicott City	Ellicott City Historic District, Ellicott City Station
Main Street (Elkridge)	Old Washington Road to Washington Blvd	Elkridge	Historic Elkridge, Brumbaugh House, Grace Cemetery	Original route of U.S. Route 1. Bisected by CSX Railroad.
Marriottsville Road	Frederick Road to Runnymead Road (in Baltimore County)	Ellicott City Woodstock	Waverley	Exit 83 off I-70
Marshalee Drive	Montgomery-Meadowridge Roads to Montgomery Road	Ellicott City Elkridge	Marshalee, Timbers at Troy Golf Course
Mayfield Avenue	Montgomery-Meadowridge Roads to Waterloo Road	Ellicott City Elkridge	Mayfield Woods Middle School
Meadowridge Road	Brightfield Road to Scarlet Oaks Drive	Elkridge		Exit 4 off MD-100. Continues northwest of Brightfield Road as Montgomery Road, and southeast of Scarlet Oaks Drive as Dorsey Road
Montgomery Road	Old Washington Road to Old Columbia Pike	Ellicott City Elkridge	Elkridge Elementary and Middle Schools, Ellicott Mills Middle School, Elkridge Corners Shopping Center, Long Gate Shopping Center	Exit 23 off US-29
Montevideo Road	Washington Blvd to Race Rd in Anne Arundel County.	Elkridge		Used as the town line for Elkridge and Jessup.

O

Road	Route	Places	Landmarks	Notes
Oakland Mills Road	Sohap Lane to Guilford Road	Oakland Mills, Columbia, Maryland	Christ Church Guilford
Old Annapolis Road	US-29 to Waterloo Road	Columbia		Exit 21 off US-29
Old Columbia Pike	Frederick Road to Montgomery Road	Ellicott City	Oakland Mills Blacksmith House and Shop	Formerly designated MD-987
Old Frederick Road	Twin Arch Road to US-29	Mt. Airy Woodbine Cooksville Sykesville Marriottsville Woodstock Ellicott City
Old Washington Road	Washington Boulevard and Abel Street to Washington Boulevard and Main Street	Elkridge	Historic Elkridge Saint Augustine Church Elkridge Fire Station	Was originally the route of U.S. 1 in Elkridge.

R

Road	Route	Places	Landmarks	Notes
Race Road	Furnace Avenue to Hanover Road. Second leg continues on Anne Arundel County side of Hanover Road, and terminates at Route 175	Hanover, Jessup	Deep Run
Ridge Road	Bond Street (in Carroll County to I-270 interchange (in Frederick County)	Mt. Airy		Exit 68 off I-70
Rogers Avenue	Frederick Road to US-29	Ellicott City		Continues west of US-29 as Old Frederick Road
Rowanberry Drive	Montgomery Road to Washington Boulevard	Elkridge	Elkridge Branch Library
Roxbury Mills Road	Frederick Road to Montgomery County line	Brookeville Glenwood	Roxbury Mill Patuxent River State Park Union Chapel	continues north of Frederick Road as Hoods Mill Road and south of Patuxent River as Georgia Avenue.

S

Road	Route	Places	Landmarks	Notes
Saint Johns Lane	Old Frederick Road to Montgomery Road	Ellicott City	Mount Hebron High School	Exit 23 off US-29 Southbound.
Scaggsville Road	Clarksville Pike to Doves Fly Way	Highland Fulton North Laurel	Reservoir High School	Exit 13 off US-29. West of US-29, designated as MD-216. East of US-29, splits off MD-216 and carries no numerical designation. MD-216 continues as a separate road to Laurel. On its north end, continues north of MD-108 as Highland Road with no numerical designation.
Snowden River Parkway	MD-100 to Broken Land Parkway (continues as Patuxent Woods Drive)	Columbia Ellicott City		Exit 3 off MD-100
Sykesville Road	I-70 interchange to Old Washington Road (in Carroll County	West Friendship Marriottsville		Exit 80 off I-70. Continues north of Old Washington Road as Washington Road, and south of I-70 interchange known only as MD-32 with no name.

T

Road	Route	Places	Landmarks	Notes
Tamar Drive	Rainprint Row to Saddle Drive	Long Reach	Long Reach Village Center
Thunder Hill Road	Old Annapolis Road to Santiago Road	Oakland Mills	Oakland Mills Village Center

W

Road	Route	Places	Landmarks	Notes
Washington Boulevard	Dover Street (in Baltimore) to near Cherry Lane (in Prince George's County)	Elkridge Jessup Guilford Savage North Laurel	Trinity Church	Exit 3 off I-195, 6 off MD-100, and 12 off MD-32.
Waterloo Road	Montgomery Road to Little Patuxent Parkway	Also is name for MD 175 from MD 108 junction to Oceano Avenue in Jessup, Maryland	Ellicott City Columbia Elkridge	Exit 2 off MD-100. Carries two designations on different parts of the route: MD-104 and MD-108.
Whiskey Bottom Road	Route 198 to Dead End	North Laurel	Edy's Ice Cream Plant
Woodbine Road	Liberty Road (in Carroll County to Annapolis Rock Road	Woodbine Mt. Airy Lisbon	Patuxent River State Park	Exit 73 off I-70.
Woodstock Road	Old Frederick Road to Baltimore County line (continues as Old Court Road)	Woodstock