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Montgomery County

Maryland
American Legion Memorial Bridge   [Map]
Deck plate girder bridge over Potomac River on Interstate 495 (Captial Beltway)
Open to traffic
Built 1963; rehabilitated 1986
Baltimore Road Bridge   [Map]
Concrete arch bridge over Rock Creek on Baltimore Road in Rockville
Open to traffic
Built 1911
Black Rock Road Bridge   [Map]
Steel stringer bridge over Seneca Creek on road
Open to traffic
Built 1906
BO - Little Seneca Creek Trestle   [Map]
Lost Deck plate girder bridge over Little Seneca Creek on B&O RR
Removed but not replaced
BO - Massachusetts Avenue Bridge   [Map]
Lost Closed-spandrel arch bridge over Massachusetts Avenue on B&O RR Georgetown Branch
Replaced by a new bridge
Built 1930
Cabin John Aqueduct Bridge   [Map · Street View]
Stone arch bridge over Cabin John Creek on Macarthur Blvd.
Open to traffic
Built 1853-63 to carry Washington Aqueduct; rehabilitated 2001
Carderock C&O Canal Tunnel   [Map]
Tunnel under Chesapeake & Ohio Canal on Carderock Access Road
Open to traffic
Built 1962; rehabilitated 1991
Cedar Lane Bridge   [Map · Street View]
Beam bridge over Rock Creek on Cedar Lane
Open to traffic
Built 1959; rehabilitated 2011
Coquelin Run Bridge   [Map · Street View]
Culvert bridge over Coquelin Run on Jones Mill Road
Open to traffic
Built 1949
CSX - Beach Drive Overpass   [Map · Street View]
Stone arch bridge over Beach Drive andRock Creek on CSX RR
Open to traffic
Believed to have been built either 1873 or 1905
CSX - Germantown Overpass   [Map · Street View]
Stone arch bridge over Game Preserve Road on CSX Railroad in Germantown
Open to traffic
CSX - Waring Viaduct   [Map]
Stone arch bridge over Seneca Creek on the CSX Railroad in Germantown, Maryland
Built 1906
East Bexhill Bridge   [Map · Street View]
Steel arch bridge over Silver Creek on East Bexhill Drive in Kensington
Open to traffic
Built 1939
Elmhirst Parkway Bridge   [Map]
Steel arch bridge over Rock Creek Tributary on Elmhirst Parkway in Bethesda
Open to traffic
Built 1940
Georgetown Branch Trail - Dalecarlia Tunnel   [Map]
Bridge over Georgetown Branch Trail ex-B&O RR on MacArthur Boulevard
Open to pedestrians only
Rail line abandoned in 1986
Georgetown Branch Trail - Rock Creek Trestle   [Map · Street View]
Lost Timber stringer bridge over Rock Creek on former Baltimore & Ohio RR
Superstructure replaced
Original 1892 trestle was 1,400' by 67' all-timber span rebuilt w/ steel center deck and mostly replaced by fill to 281' length 1904; damaged 1967 fire and 1972 flooding; rail service abandoned 3-1985; demolished 2019
Glen Echo Trolley Trestle   [Map · Street View]
Abandoned bridge over dry run on abandoned trolley right-of-way
Abandoned
Built 1890
Griffith Road Bridge   [Map]
Concrete arch bridge over Hawlings River on Griffith Road in Laytonsville
Open to traffic
Built 1920
Haviland Mill Road Bridge   [Map]
Concrete arch bridge over Hawlings River on Haviland Mill Road in Brookeville
Open to traffic
Built 1900
Kensington Parkway Bridge   [Map]
Concrete arch bridge over Silver Creek on Kensington Parkway in Kensington
Open to traffic
Built 1940
Kensington Parkway Bridge   [Map]
Steel arch bridge over Rock Creek on Kensington Parkway in Kensington
Open to traffic
Built 1910
Kent Street Bridge   [Map]
Steel arch bridge over Silver Creek on Kent Street in Kensington
Open to traffic
Built 1940
MacArthur Avenue Trail - Minnehaha Creek Bridge   [Map]
Abandoned deck truss bridge over MacArthur Avenue Trail on MacArthur Avenue Trail
Open to pedestrians only
Built ca. 1895
Montevideo Road Bridge   [Map]
Pony truss bridge over Dry Seneca Creek on Montevideo Road in Poolesville
Open to traffic
Built 1910; rehabilitated 1989
North Branch Rock Creek Bridge   [Map]
Concrete arch bridge over North Branch of Rock Creek on MD 115
Open to traffic
Built 1917; rehabilitated 1970
Northwest Branch Bridge   [Map]
Concrete arch bridge over Northwest Branch on US 29 in White Oak
Open to traffic
Built 1920; rehabilitated 1961
Old Columbia Pike Bridge   [Map]
Closed-spandrel arch bridge over Paint Branch on Old Columbia Pike
Intact but closed to all traffic
Built 1912; widened 1930; made obsolete by bridge on new alignment in 1957
Paint Branch US 29 Bridge   [Map]
Deck girder bridge over Paint Branch on US 29
Open to traffic
Built 1957; rehabilitated 1990
Patuxent River Bridge   [Map · Street View]
Concrete arch bridge over Patuxent River on MD 108
Open to traffic
Built 1928
Patuxent River Bridge near Scaggsville MD   [Map]
Pratt through truss bridge over Patuxent River on Columbia Turnpike
Demolished
Built in 1883 by Pittsburgh Bridge Company. Replaced by Rt 29 Bridge 1952
Railroad Street Bridge   [Map · Street View]
Steel stringer bridge over CSX railroad on East Deer Park Dr.
Open to traffic
Built 1954
Saul Road Bridge   [Map · Street View]
Steel arch bridge over Silver Creek on Saul Road
Open to traffic
Built 1940 Recon 1996
Selden Island Bridge   [Map · Street View]
Bailey pony truss bridge over Potomac River on private road
Intact but closed to all but private traffic
Seneca Aqueduct   [Map · Street View]
Brick arch bridge over Seneca Creek on C&O Canal Path
Open to pedestrians
Built 1833, One span collasped after flooding in 1971
Sligo Creek Bridge   [Map]
Concrete arch bridge over Sligo Creek on MD 195
Open to traffic
Built 1932
Sycamore Island Pedestrian Bridge   [Map · Street View]
Warren through truss bridge over C&O Canal on Pedestrian Walkway
Intact but closed to all traffic
Talbot Avenue Overpass   [Map · Street View]
Pony/through plate girder bridge over CSX Transportation (former Baltimore & Ohio) on Talbot Avenue
Bridge removed for future preservation and construction of replacement July 2019
Built 1918; redecked 1986; rehabilitated 1995, closed April 2017; removed for preservation July 2019
Unused Clara Barton Parkway Overpass   [Map · Street View]
Concrete rigid frame bridge over Clara Barton Parkway (Northbound) for a ramp that was never built
Closed to all traffic
Built 1961, but never used
White's Ferry   [Map · Street View]
Ferry over Potomac River
Closed due to ongoing court cases regarding property rights on Virginia side
White's Ferry Bridge   [Map · Street View]
Abandoned iron truss bridge over C&O Canal
Abandoned
Built May-June 1876 to replace earlier bridge dating to 1866
Wilson Lane Trolley Trestle   [Map]
Abandoned trestle on abandoned trolley right-of-way
Abandoned
Built ca. 1895
Zion Road Bridge   [Map]
Concrete arch bridge over Hawlings River on Zion Road in Laytonsville
Open to traffic
Built 1930