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| Street | Route | Communities | Landmarks | Notes |
|---|---|---|---|---|
| Walther Boulevard | Joppa Road to Rossville Boulevard (continues as Rolling Crest Way) | Perry Hall | See also similarly named Walther Avenue in Baltimore City | |
| Warren Road | I-83 to Poplar Hill Road (continues as Merrymans Mill Road | Cockeysville | Warren Road Light Rail Stop | Exit 18 off I-83 (accessible from northbound only). Part of route of Bus Route 9. |
| Washington Avenue | York Road to Towsontown Boulevard | Towson | ||
| Washington Boulevard | Dover Street to near Cherry Lane (in Prince George's County) | Halethorpe | Exit 10 off Baltimore Beltway. Is US-1 ALT from city line to Southwestern Boulevard and US-1 south of Southwestern Boulevard. Served by bus routes 35, 36, and 77. | |
| White Marsh Boulevard | Baltimore Beltway to Eastern Boulevard | Fullerton White Marsh Middle River |
White Marsh Town Center | Exit 31C off Baltimore Beltway and Exit 67 off I-95. Part of route of Bus Route 15. |
| Wilkens Avenue | Rolling Road to Gilmor Street (in Baltimore City) | Catonsville Arbutus |
UMBC Spring Grove State Hospital |
Exit 12-BC off Baltimore Beltway. Designated as MD-372 from west end at Rolling Road to Southwestern Boulevard in Baltimore City, where it becomes part of US-1 up until Fulton Avenue. |
| Winands Road | Deer Park Road to Old Court Road | Randallstown | Randallstown High School WBAL-AM towers |
|
| Windsor Mill Road | Inwood Road to Clifton Avenue (in Baltimore City) | Windsor Mill Woodlawn |
Windsor Mill Middle School Kernan Hospital |
Part of route of Bus Route 77. |
| Wise Avenue | Merritt Boulevard to North Point Boulevard | Dundalk Edgemere |
Patapsco High School | Continues west of Merritt Boulevard as Holabird Avenue. Served by Bus Route 4. |
| Woodlawn Drive | Gwynn Oak Avenue to Johnnycake Road | Woodlawn | Social Security Administration headquarters Woodlawn High School BCPL Woodlawn branch |
Continues past Johnnycake Road as Crosby Road |
| Worthington Avenue | Butler Road to Tufton Avenue | Reisterstown | To the west, continues as Butler Road. To the east, continues as Greenspring Avenue. |
Read more about this topic: List Of Roads In Baltimore County, Maryland