Historic Civil Engineering Landmark
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Alvord Lake Bridge (San Francisco County, California)
Built 1889 by Ernest L. RansomeReinforced concrete arch bridge over a pedestrian walkway at Golden Gate ParkOpen to traffic
ASB Bridge (Jackson County, Missouri)
Opened to traffic on December 28, 1911; upper roadway deck removed 1987Vertical-lift through truss bridge over the Missouri River on the BNSF Railway in Kansas CityOpen to railroad traffic
Bailey Island Bridge (Cumberland County, Maine)
Built 1926, restoration work 2009-10Bridge over Wills Strait on 24Open to traffic
Bayonne Bridge (Hudson County, New Jersey)
Built 1931; roadway raised 64 feet 2017-2019Steel through arch bridge over Kill Van Kull between Bayonne and Staten IslandToll bridge open to traffic
Blenheim Bridge (Schoharie County, New York)
Built 1855; Approach span added 1869; Approach span rebuilt 1887 & 1895; bypassed 1932; lost 2011Lost covered bridge over Schoharie Creek on River RoadDestroyed by flooding from Hurricane Irene on Aug 28, 2011
Bollman Bridge (Howard County, Maryland)
Built for the main line of the B&O Railroad in 1869. Moved to present location around 1887. Remained in service until 1947. Restored in 1968 (perhaps 1983).Bollman through truss bridge over Little Patuxent River in Savage, near the intersection of Goman Road and Foundry StreetOpen to pedestrians
Bridgeport Covered Bridge 05-29-01 (Nevada County, California)
Built 1862 by the Virginia Turnpike Co.; closed to traffic in 1973Covered bridge over South Fork Yuba River on Pleasant Valley Road in South Yuba State ParkClosed to all traffic as of October 21, 2011
Brooklyn Bridge (Kings County, New York)
Opened to traffic May 24, 1883Suspension bridge over East River between Manhattan and Brooklyn in New YorkOpen to traffic
Bunker Hill Covered Bridge 33-18-01 (Catawba County, North Carolina)
Built 1895; rehabilitated 1994Covered bridge over Lyle Creek on Old US 70 at Conner ParkOpen to pedestrians only
Cabin John Aqueduct Bridge (Montgomery County, Maryland)
Built 1853-63 to carry Washington Aqueduct; rehabilitated 2001Stone arch bridge over Cabin John Creek on Macarthur Blvd.Open to traffic
Cornish-Windsor Covered Bridge 45-14-14 / 29-10-09 (Sullivan County, New Hampshire)
Built 1866; Tolls removed 1943; Rehabilitated 1989Covered Town Lattice through truss bridge over Connecticut River between Cornish, NH, and Windsor, VTOpen to one-lane traffic
Cortland Street Bridge (Cook County, Illinois)
Built 1901-02Double-leaf bascule bridge over North Branch Chicago River on W. Cortland Street in ChicagoOpen to traffic
Cotter Bridge (Baxter County, Arkansas)
Built 1930 by the Marsh Engineering Co. and Bateman Contracting Co.; rehabilitated 2003-04Six-span rainbow arch bridge over White River on US 62B at CotterOpen to two-lane traffic
CP - Tunkhannock Viaduct (Wyoming County, Pennsylvania)
Built 1912-15 for the Delaware Lackawanna and Western RailroadMassive ten-span concrete arch bridge over Tunkhannock Creek on Canadian Pacific Railroad at NicholsonOpen to traffic
CSX - Carrollton Viaduct (Baltimore, Maryland)
Built in 1829 for the Baltimore and Ohio Railroad, this is the oldest railroad bridge in the world still in use.Stone arch bridge over Gwynn's FallsOpen to traffic
Delaware Aqueduct (Pike County, Pennsylvania)
Built 1848 by John A. Roebling to carry the Delaware & Hudson Canal; later converted for highway traffic; rehabilitated 1985Suspension bridge over Delaware River on the former Delaware & Hudson CanalOpen to one-lane traffic
Dunlap's Creek Bridge (Fayette County, Pennsylvania)
Built 1836-39; rehabilitated 1981Cast-iron arch bridge over Dunlap Creek on PA 4003 in BrownsvilleOpen to traffic
Eads Bridge (St. Louis, Missouri)
Built 1869-1874 under the direction of engineer James Buchanan Eads; automobile deck closed 1989-2003 for rehabilitation and replacement; reopened July 4, 2003Three-span steel arch bridge over the Mississippi River and N. Leonor K. Sullivan Blvd. in downtown St. LouisUpper vehicular deck open to vehicular traffic on weekdays. Closed on weekends; Lower railroad deck open
Frankford Avenue Bridge (Philadelphia County, Pennsylvania)
Built 1697 by the residents of Lower Dublin Township; widened 1893Three-span stone arch bridge over Pennypack Creek on Frankford Avenue (US 13) in HolmesburgOpen to traffic
Frisco Bridge (Shelby County, Tennessee)
Completed May 12, 1892, under the direction of engineer George S. Morison; west approach replaced in 2018Cantilevered through truss railroad bridge over the Mississippi River at MemphisOpen to railroad traffic
Golden Gate Bridge (San Francisco County, California)
Built 1937Suspension bridge over San Francisco Bay on US 101 at San FranciscoOpen to traffic
Huey P. Long Bridge (Jefferson Parish) (Jefferson Parish, Louisiana)
Opened to traffic December 16, 1935; widening completed June 16, 2013Cantilevered through truss bridge over the Mississippi River on US 90 in JeffersonOpen to traffic
Isaac Lee Patterson Bridge (Curry County, Oregon)
Built 1930Concrete arch bridge over Rogue River on US 101 in Gold BeachOpen to traffic
Keeseville Stone Arch Bridge (Essex County, New York)
Built 1843 by Soloman Townsend; rehabilitated 2000Stone arch bridge over AuSable River on Main Street in KeesevilleOpen to traffic
Keeseville Suspension Bridge (Essex County, New York)
Built 1888 by the Berlin Iron Bridge Co.Suspension footbridge over AuSable River beyond the end of Clinton Street in KeesevilleOpen to pedestrians
Lake Pontchartrain Causeway (St. Tammany Parish, Louisiana)
First bridge built 1956Pair of prestressed concrete bridges over Lake Pontchartrain with a length of nearly 24 milesOpen to two lanes of toll southbound traffic and two lanes of free northbound traffic
Lincoln Highway Columbia-Wrightsville Bridge (Lancaster County, Pennsylvania)
Built 1929; rehabilitated 1988Open-spandrel arch bridge over Susquehanna River on PA 462 (Old Lincoln Highway) between Columbia and York CountiesOpen to traffic
MBTA - Canton Viaduct (Norfolk County, Massachusetts)
Built 1835Massive stone arch bridge over East Branch Neponset River and Neponset Street on the MBTA RailroadOpen to traffic
Mission Espada Aqueduct (Bexar County, Texas)
Built between 1731 and 1745Stone arch bridge over Piedras Creek on Acequia MadreStill carries water
Moseley Wrought Iron Arch Bridge (Essex County, Massachusetts)
Built 1864 at Upper Pacific Mills in Lawrence; relocated 1989; reopened to foot traffic in 1995Relocated wrought-iron through arch bridge on the grounds of Merrimack College in North AndoverOpen to pedestrians
Navajo Bridge (Coconino County, Arizona)
Built 1927-1929; bypassed by parallel bridge in 1995Steel arch bridge over Colorado River on Alt US 89Open to pedestrians only
Northampton Street Bridge (Northampton County, Pennsylvania)
Built 1896; damaged and fixed 1955; rehabilitated 2002Cantilevered through truss bridge over Delaware River on Northampton StreetOpen to two-lane traffic with a 3 ton weight limit
NS - High Bridge (Jessamine County, Kentucky)
Built in 1911 to replace the original bridge built in 1877Cantilever Bridge over Kentucky River on Norfolk Southern Railway (former Cincinnati Southern Railway) in High BridgeOpen to traffic
PATH - Downtown Hudson Tubes (New York County, New York)
Opened 1909Tunnel under Hudson River on Port Authority Trans-Hudson (PATH)Open to traffic
PATH - Uptown Hudson Tubes (New York County, New York)
Opened 1908Tunnel under Hudson River on Port Authority Trans-Hudson (PATH)Open to traffic
Riverside Park Bridge (Lynchburg, Virginia)
Built 1870 for Norfolk & Western RR, moved to Old Forest road for car use over N&W Mainline in 1893, then moved to current location in 1985Fink Deck truss bridge over unknown creek on TrailOpen to pedestrians
Roebling Suspension Bridge (Hamilton County, Ohio)
Built 1866 by John A. Roebling. Rehabilitated 1955.Suspension bridge over the Ohio River between Cincinnati and CovingtonRehabilitation Completed
Smithfield Street Bridge (Allegheny County, Pennsylvania)
Built 1883 under the direction of engineer Gustav LindenthalTwo-span lenticular through truss bridge over Monongahela River on Smithfield Street in PittsburghOpen to four lanes of traffic
Starrucca Viaduct (Susquehanna County, Pennsylvania)
Built 1847-48Massive stone arch bridge over Starrucca Creek and frmr D&H RR on New York, Susquehanna and Western Railway at LanesboroOpen to traffic
Stone Arch Bridge (Hennepin County, Minnesota)
Built 1883 for the St. Paul, Minneapolis, and Manitoba Railway; ; Deck truss added 1963-64; rehabilitated 1994Stone arch bridge over the Mississippi River at St. Anthony Falls in MinneapolisOpen to pedestrians only
UP - Moffat Tunnel (Grand County, Colorado)
Built 1923-1928Tunnel under Continental Divide west of Denver on Union Pacific RROpen to railroad traffic, including Amtrak's California Zephyr and Ski Train
Upper Keeseville Bridge (Essex County, New York)
Built 1878 by Murray, Dougal & Co.; Closed 2008Pin connected Pratt through truss bridge over AuSable River on River Street in KeesevilleClosed to all traffic
Walnut Street Bridge (Dauphin County, Pennsylvania)
Built 1890; Streetcar traffic begins 1894; Rehabilitated in 1911 by Phoenix Bridge Co.; Streetcar traffic ends 1936; Closed 1972 due to damage from Hurricane Agnes; Several spans destroyed by ice jam 1996Through truss bridge over Susquehanna River, (east channel) in HarrisburgOpen to pedestrians
Wheeling Suspension Bridge (Ohio County, West Virginia)
Built 1849; collapsed May 17, 1854; temporary bridge reopened July 26, 1854; permanent bridge reopened July 1860; improvements made 1871-72, 1886, 1922, 1930, 1956 and other yearsSuspension bridge over Ohio River on WV 251 in WheelingOpen to pedestrians only