Baltimore County

NameLocationStatusDesignYear BuiltYear LostSpan Length (ft.)Total Length (ft.)
Allender Road BridgeAllender Road over Csx RailroadReplaced by a new bridgeDeck plate girder1945199850.9215.9
Amtrak - B&P TunnelsAmtrak Northeast Corridor under Baltimore, MDOpen to trafficTunnel1873----7669.0
Amtrak - Gunpowder River BridgeAmtrak RR over Gunpowder RiverOpen to rail traffic, draw mechanism removedConcrete deck girder1912-13----4853.0
B&O - Patterson Bollman BridgeFormer Baltimore & Ohio Railroad over Patapsco RiverReplaced by a new bridgeBollman through truss18691903----
B&O - Patterson ViaductBaltimore & Ohio Railroad over Patapsco RiverDerelict/abandonedStone arch1829186855.0360.0
B&O - Wilkins-Rogers Flour Mill BridgeB&O Railroad over Patapsco RiverIntact but closed to all trafficPratt through truss--------
Bear Creek BridgeMD 157 over Bear CreekOpen to trafficOther1960--97.11352.1
Beckleysvlle Road BridgeBeckleysvlle Road over Pretty Boy ResevoirOpen to trafficParker through truss1931--242.1496.1
Benson Mill Road BridgeBenson Mill Road over Blackrock RunOpen to trafficDeck arch1909--36.138.1
Big Falls Road BridgeBig Falls Road over Gunpowder FallsOpen to trafficDeck arch1933--79.185.0
Blackrock Run BridgeWestern Run Road over Blackrock RunOpen to trafficBailey pony truss1974--110.9117.1
Bottom Road BridgeBottom Road over Little Gunpowder FallsOpen to trafficPratt through truss----97.1100.1
Branch Long Green Creek BridgeMD 147 over Branch of Long Green CreekOpen to trafficDeck arch1915--26.941.0
Brice Run BridgeMD 125 over Brice RunOpen to trafficDeck arch1930--44.956.1
BTCO - Bear Creek DrawbridgeBaltimore Transportaion Co. over Bear Creek EstuaryRemovedWarren through truss19061958----
BTCO - Jones Creek DrawbridgeBaltimore Transit Company over Jones CreekNo longer existsDeck plate girder1906after 1958----
BTCO - North Point Creek Bridgeformer Baltimore Transit streetcar line over North Point CreekRemoved but not replacedDeck plate girder19061958----
BTCO - Patapsco River BridgeStreetcar line (Baltimore Traction/Baltimore Transit) over Patapsco RiverRemoved but not replacedThrough truss--1955?----
Bunker Hill Covered Bridge #1 20-03-01Bunker Hill Road over Gunpowder FallsReplaced by a new bridgeBurr arch-truss18801961--110.0
Bunker Hill Covered Bridge #2Bunker Hill Road over Gunpowder FallsDestroyed by fire on August 8, 1971Burr arch-truss19631971107.0107.0
Carroll Road BridgeCarroll Road over Carroll BranchOpen to trafficPratt through truss1879--91.995.1
Chesaco Avenue BridgeChesaco Avenue over Csx RailroadOpen to trafficGirder1957--71.9151.9
CSX - Bear Creek DrawbridgeCSX Transportation over Bear CreekOpen to trafficUnknown--------
CSX - Gunpowder River BridgeCSX Transportation (former Baltimore & Ohio RR,) over Gunpowder RiverOpen to trafficWarren deck truss with all verticalsCa. 1906------
CSX - Ilchester TunnelCSX Railroad (formerly B&O Railroad Old Main Line) under Open to trafficTunnel1903----1405.0
CSX - Oliver ViaductCSX Railroad over Tiber River and (Formerly) Baltimore & Frederick TurnpikeOpen to trafficStone arch1829------
CSX - Patapsco River BridgeCSX (formerly B&O Railroad Old Main Line) over Patapsco River, Ilchester RoadOpen to trafficPratt through truss1902--155.0273.0
CSX - Thomas ViaductB&O Railroad over Patapsco RiverOpen to trafficStone arch1835----612.0
CSX - Union Dam TunnelRailroad (CSX) under US 40Open to trafficTunnel--------
Cuba Road BridgeCuba Road over Western RunOpen to trafficPratt through truss1893--111.9116.1
Deadman Run BridgeMantua Mill Road over Deadman RunOpen to trafficGirder1930--42.044.9
Dogwood Road BridgeDogwood Road over Dogwood RunOpen to trafficDeck arch1929--76.176.1
Dover Road BridgeDover Road over CSX RailroadNo longer existsTimber stringer1907200618.069.9
Ellicott City Covered BridgeMain Street over Patapsco RiverDestroyed by fireBurr arch-truss18681914--200.0
Falls Road BridgeFalls Road over Gunpowder FallsOpen to trafficThrough truss----87.991.9
Francis Scott Key BridgeMaryland Route 695 (Interstate 695) over Patapsco River/Baltimore HarborOpen to trafficSteel through arch1976--1200.29091.3
Franklintown BridgeOld Ingleside Avenue over Dead RunOpen to trafficClosed-spandrel arch1928--35.175.1
Golden Ring Road BridgeGolden Ring Road over Stemmers RunOpen to trafficDeck arch1933--44.946.9
Greene Branch BridgeMD 145 over Greene BranchOpen to trafficDeck arch1929--42.049.9
Gunpowder Falls BridgeMD 45 over Gunpowder FallsOpen to trafficDeck arch1924--64.080.1
Gunpowder Falls BridgeMD 147 over Gunpowder FallsOpen to trafficDeck arch1929--55.1134.8
Gwynn Oak Road BridgeGwynn Oak Road over Gwynns FallsOpen to trafficDeck arch1900--41.086.0
Hanover Road Maryland Midland RR OverpassMd. Rt. 30 (Hanover Road) over Maryland Midland RailroadOpen to trafficSteel stringer1936--67.9211.0
Haystack Branch BridgeMD 147 over Haystack BranchOpen to trafficDeck arch1915--32.247.9
Jericho Covered Bridge 20-03-01 / 20-12-01Jericho Road over Little Gunpowder FallsOpen to trafficBurr arch-truss1865--86.092.9
Jones Falls BridgeMD 746A over Jones FallsOpen to trafficDeck arch1910--54.154.1
Lake Roland BridgeRoad over Jones FallsReplaced by a new bridgeThrough truss1872--114.0--
Little Falls BridgeDairy Road over Little FallsOpen to trafficGirderca. 1900--54.154.1
Little Gunpowder Falls BridgeMD 7 over Little Gunpowder FallsOpen to trafficDeck arch1928--44.9104.0
Little Gunpowder Falls BridgeMD 147 over Little Gunpowder FallsOpen to trafficDeck arch1928--56.166.9
Loch Raven Reservoir BridgeWarren Road (old MD 143) over Loch Raven Reservoir / Gunpowder FallsOpen to trafficParker through truss1923--212.9640.1
Ma & Pa - Wash House TrestleMaryland & Pennsylvania Railroad over Loch Raven BoulevardRemovedDeck plate girder--1959----
Ma & Pa - York Road OverpassMaryland & Pennsylvania Railroad over York RoadRemoved but not replacedPony/through plate girder--1959----
Masemore Road BridgeMasemore Road over Gunpowder FallsOpen to trafficPratt through truss1898--118.1120.1
Matthews BridgeMD-146 (Dulaney Valley Road) over Loch Raven ReservoirReplaced by new bridgeParker through truss19141976----
Mohrs Lane OverpassMohrs Lane over CSX Transportation (former Baltimore & Ohio Railroad)Removed but not replacedGirder19122014?63.0145.0
Mt. Zion Road BridgeMt. Zion Road over Piney RunOpen to trafficDeck arch1909--40.044.0
Old Paper Mill Bridgean old alignment of Paper Mill Rd over Loch Raven Reservoir (Gunpowder Falls)Closed to all trafficSteel through arch1922--361.0521.0
Old Valley Road BridgeOld Valley Road over Jones FallsOpen to trafficDeck arch1920--33.140.0
Old York Road BridgeOld York Road over Little Gunpowder FallsOpen to trafficStone arch1809--18.062.0
Orange Grove Swinging BridgeFootpath over Patapsco RiverOpen to pedestrians onlyWire suspension--------
Patapsco River BridgeUS 1 over Patapsco RiverOpen to trafficDeck arch1915--100.1272.0
Patapsco River BridgeMD 144 over Patapsco RiverOpen to trafficDeck arch1914--77.1201.1
Patapsco River BridgeHollifield Road over Patapsco RiverOpen to trafficParker through truss1934--160.1164.1
Patterson Viaduct Pedestrian BridgePedestrian pathway over Patapsco RiverOpen to pedestrians onlyCable-stayed2006--164.0--
Phoenix Road BridgePhoenix Road over Gunpowder FallsOpen to one lane trafficDeck truss1922--69.9437.0
Piney Grove Road BridgePiney Grove Road over CSX RailroadOpen to trafficTimber stringer1907--17.145.9
Prettyboy Dam Road BridgePrettyboy Dam Road over Pretty Boy ResevoirOpen to trafficDeck arch1932--76.1692.9
Race Road BridgeRace Road over Stemmers RunOpen to trafficDeck arch1929--44.946.9
Roland Run BridgeCircle Road over Roland RunOpen to trafficBailey pony truss1988--61.066.9
Ruxton PRR OverpassLabelle Avenue over Pennsylvania RailroadReplaced by a new bridgePony truss1888--72.372.3
Sparks Road BridgeSparks Road over Gunpowder FallsOpen to trafficPratt through truss1888--174.9178.2
Sudbrook Lane BridgeSudbrook Lane over CSX RailroadOpen to trafficDeck plate girder1907--33.1100.1
Trenton Road BridgeTrenton Road over Little Piney RunOpen to trafficDeck arch1927--22.024.9
US1 OverpassUs 1 over CSX RailroadOpen to trafficPony/through plate girder1930--108.9122.1
US40 Patapsco River BridgeUS 40 over Patapsco RiverOpen to trafficDeck arch1936--180.1334.0
Vinegar Hill Road BridgeVinegar Hill Road over Little Gunpowder FallsOpen to trafficPratt through truss1894--74.277.1
Westchester Avenue BridgeWestchester Avenue over Ravine,Bicycle TrailOpen to trafficBailey pony truss----100.1100.1
Western Run BridgeMD 45 over Western RunOpen to trafficDeck arch1917--89.994.2
Wise Avenue BridgeWise Avenue over Bear CreekOpen to trafficOther1948--90.9429.2
York Road Little Gunpowder Falls BridgeMD 45 over Little FallsOpen to trafficDeck arch1930--42.058.1