Bear Creek Bridge Bascule bridge over Bear Creek on MD 157 in Dundalk Open to traffic Built 1960; rehabilitated 1999
Beckleysvlle Road Bridge Through truss bridge over Pretty Boy Resevoir on Beckleysvlle Road Open to traffic Built 1931; rehabilitated 1986
Benson Mill Road Bridge Concrete arch bridge over Blackrock Run on Benson Mill Road Open to traffic Built 1909; rehabilitated 2001
Big Falls Road Bridge Concrete arch bridge over Gunpowder Falls on Big Falls Road Open to traffic Built 1933
Bottom Road Bridge Through truss bridge over Little Gunpowder Falls on Bottom Road Open to traffic Built 1886; rehabilitated 2001
Branch Long Green Creek Bridge Concrete arch bridge over a branch of Long Green Creek on MD 147 Open to traffic Built 1915
Brice Run Bridge Concrete arch bridge over Brice Run on MD 125 Open to traffic Built 1930
Carroll Road Bridge Through truss bridge over Carroll Branch on Carroll Road Open to traffic Built 1879; rehabilitated 1991
Cuba Road Bridge Through truss bridge over Western Run on Cuba Road Open to traffic Built 1893; rehabilitated 1979
Dogwood Road Bridge Concrete arch bridge over Dogwood Run on Dogwood Road in Woodlawn Open to traffic Built 1929
Dover Road Bridge Lost wooden bridge over CSX Railroad on Dover Road No longer exists Built 1907; rehabilitated 1992; replaced 2006
Falls Road Bridge Through truss bridge over Gunpowder Falls on Falls Road Open to traffic Built 1884; rehabilitated 1994
Golden Ring Road Bridge Concrete arch bridge over Stemmers Run on Golden Ring Road in Rossville Open to traffic Built 1933
Greene Branch Bridge Concrete arch bridge over Greene Branch on MD 145 Open to traffic Built 1929
Gunpowder Falls Bridge Concrete arch bridge over Gunpowder Falls on MD 45 Open to traffic Built 1924
Gunpowder Falls Bridge Concrete arch bridge over Gunpowder Falls on MD 147 Open to traffic Built 1929
Gwynn Oak Road Bridge Concrete arch bridge over Gwynns Falls on Gwynn Oak Road Open to traffic Built 1900; rehabilitated 1937
Haystack Branch Bridge Concrete arch bridge over Haystack Branch on MD 147 Open to traffic Built 1915
Ilchester Railroad Bridge Through truss bridge over Patapsco River, Ilchester Road on CSX Transportation Railroad (formerly B&O Railroad Old Main Line) Open to traffic Built 1902 by the American Bridge Company; once carried 2 tracks
Ilchester Railroad Tunnel Tunnel on CSX Transportation Railroad (formerly B&O Railroad Old Main Line) Open to traffic Built 1903
Ingleside Avenue Bridge Concrete arch bridge over Dead Run on Old Ingleside Avenue in Baltimore Open to traffic Built 1928
Jones Falls Bridge Concrete arch bridge over Jones Falls on MD 746A Open to traffic Built 1910
Little Falls Bridge Concrete arch bridge over Little Falls on MD 45 Open to traffic Built 1930
Masemore Road Bridge Through truss bridge over Gunpowder Falls on Masemore Road Open to traffic Built 1898; rehabilitated 2000
Mt. Zion Road Bridge Concrete arch bridge over Piney Run on Mt. Zion Road Open to traffic Built 1909
Old Paper Mill Bridge Bridge over Loch Raven Reservoir on an old alignment of Paper Mill Rd Closed to all traffic Built 1922; replaced 2001; rehabilitated as historic landmark in 2007
Old Valley Road Bridge Concrete arch bridge over Jones Falls on Old Valley Road Open to traffic Built 1920; rehabilitated 1997
Patapsco River Bridge Concrete arch bridge over Patapsco River on US 1 in Baltimore Open to traffic Built 1915; rehabilitated 1952
Patapsco River Bridge Concrete arch bridge over Patapsco River on MD 144 Open to traffic Built 1914; rehabilitated 1972
Patapsco River Bridge Concrete arch bridge over Patapsco River on US 40 in Woodlawn Open to traffic Built 1936
Phoenix Road Bridge Deck truss bridge over Aband Pa Rr Gnpwdr Falls on Phoenix Road Open to traffic Built 1922; rehabilitated 1982
Piney Grove Road Bridge Wooden bridge over CSX Railroad on Piney Grove Road Open to traffic Built 1907
Prettyboy Dam Road Bridge Concrete arch bridge over Pretty Boy Resevoir on Prettyboy Dam Road Open to traffic Built 1932; rehabilitated 1998
Race Road Bridge Concrete arch bridge over Stemmers Run on Race Road in Rossville Open to traffic Built 1929
Sparks Road Bridge Metal through arch bridge over Gunpowder Falls on Sparks Road Open to traffic Built 1888; rehabilitated 1990
Thomas Viaduct Eight-span stone arch bridge over Patapsco River on the B&O Railroad between Relay and Elkridge Open to traffic Built 1835
Trenton Road Bridge Concrete arch bridge over Little Piney Run on Trenton Road Open to traffic Built 1927
Vinegar Hill Road Bridge Through truss bridge over Little Gunpowder Falls on Vinegar Hill Road in Kingsville Open to traffic Built 1894; rehabilitated 2000
Warren Road Bridge Three-span through truss bridge over Loch Raven Reservoir / Gunpowder Falls on Warren Road (old MD 143) Open to traffic Built 1923; rehabilitated 1994
Western Run Bridge Concrete arch bridge over Western Run on MD 45 Open to traffic Built 1917
Wise Avenue Bridge Bascule bridge over Bear Creek on Wise Avenue in Dundalk Open to traffic Built 1948; rehabilitated 1986
York Road Bridge Stone arch bridge over Little Falls on York Road Open to traffic Built 1809