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| Street | Route | Communities | Landmarks | Notes |
|---|---|---|---|---|
| Deereco Road | Padonia Road to Timonium Road | Timonium | Timonium Light Rail Stop | Part of a longer road that is made of Cuba Road, Beaver Dam Road, Deereco Road, and Greenspring Drive. |
| Deer Park Road | Liberty Road to Sykesville Road (in Carroll County) | Randallstown Reisterstown |
Soldiers Delight Natural Environmental Area | Split into two sections. The first off Liberty Road dead-ends past Ivy Mill Road. The second part begins west off Ivy Mill Road about a mile north as a continuation to Nicodemus Road, crosses into Carroll County, and ends at Sykesville Road. |
| Dogwood Road | Old Court Road to Baltimore City Line (continues as Franklintown Road) | Windsor Mill Woodlawn |
St. Mary's Episcopal Church | |
| Dolfield Road | various sections | Owings Mills | Dolfield Road, once a single road, has various sections. One is from Painters Mill Road to a dead end, with the portion running through Owings Mills Industrial Park technically named S. Dolfield Road. One is from Deer Park Road to Lakeside Boulevard. Another road, now called Dolfield Boulevard (proposed as a much longer road) proceeds north from Lakeside Boulevard to Pleasant Hill Rd and from Reisterstown Road south to a dead end.
A current proposal is in place to expand the portion of Dolfield Road north of Owings Mills New Town by extending its route to Reisterstown Road, widening the road to four lanes, constructing an interchange with I-795, and naming it "Dolfield Boulevard". This plan has long been delayed due to community opposition for various reasons, including the demolition of some houses and removal of land from others and some history. A stub of the proposed Dolfield Boulevard has existed since the mid-1990s, serving as an entrance/exit to the area's Target store. |
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| Dover Road | Hanover Pike to Butler Road (northern section) Tufton Avenue to Greenspring Avenue (southern section) |
Home of Cal Ripken Jr. | Part of former route of No. 5 Streetcar Line | |
| Dulaney Valley Road | York Road/Joppa Road (known as Towson Circle to Manor Road | Hampton Timonium Long Green |
Towson Town Center Towson Sheraton Goucher College Stella Maris Hospice Loch Raven Reservoir |
Route 146 becomes Jarrettsville Pike at the Loch Raven Reservoir. Dulaney Valley Road splits off unnumbered, then continues east to Manor Road. |
| Dundalk Avenue | Eastern Avenue to dead end | Dundalk |
Read more about this topic: List Of Roads In Baltimore County, Maryland