Historic Civil Engineering Landmark

View Exhibit map

Alvord Lake Bridge (San Francisco County, California)
Built 1889 by Ernest L. Ransome
Reinforced concrete arch bridge over a pedestrian walkway at Golden Gate Park
Open to traffic

ASB Bridge (Jackson County, Missouri)
Opened to traffic on December 28, 1911; upper roadway deck removed 1987
Vertical-lift through truss bridge over the Missouri River on the BNSF Railway in Kansas City
Open to railroad traffic

Bailey Island Bridge (Cumberland County, Maine)
Built 1926, restoration work 2009-10
Bridge over Wills Strait on 24
Open to traffic

Bayonne Bridge (Hudson County, New Jersey)
Built 1931; roadway raised 64 feet 2017-2019
Steel through arch bridge over Kill Van Kull between Bayonne and Staten Island
Toll bridge open to traffic

Blenheim Bridge (Schoharie County, New York)
Built 1855; Approach span added 1869; Approach span rebuilt 1887 & 1895; bypassed 1932; lost 2011
Lost covered bridge over Schoharie Creek on River Road
Destroyed 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 Street
Open to pedestrians

Bridgeport Covered Bridge 05-29-01 (Nevada County, California)
Built 1862 by the Virginia Turnpike Co.; closed to traffic in 1973
Covered bridge over South Fork Yuba River on Pleasant Valley Road in South Yuba State Park
Closed to all traffic as of October 21, 2011

Brooklyn Bridge (Kings County, New York)
Opened to traffic May 24, 1883
Suspension bridge over East River between Manhattan and Brooklyn in New York
Open to traffic

Bunker Hill Covered Bridge 33-18-01 (Catawba County, North Carolina)
Built 1895; rehabilitated 1994
Covered bridge over Lyle Creek on Old US 70 at Conner Park
Open to pedestrians only

Cabin John Aqueduct Bridge (Montgomery County, Maryland)
Built 1853-63 to carry Washington Aqueduct; rehabilitated 2001
Stone 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 1989
Covered Town Lattice through truss bridge over Connecticut River between Cornish, NH, and Windsor, VT
Open to one-lane traffic

Cortland Street Bridge (Cook County, Illinois)
Built 1901-02
Double-leaf bascule bridge over North Branch Chicago River on W. Cortland Street in Chicago
Open to traffic

Cotter Bridge (Baxter County, Arkansas)
Built 1930 by the Marsh Engineering Co. and Bateman Contracting Co.; rehabilitated 2003-04
Six-span rainbow arch bridge over White River on US 62B at Cotter
Open to two-lane traffic

CP - Tunkhannock Viaduct (Wyoming County, Pennsylvania)
Built 1912-15 for the Delaware Lackawanna and Western Railroad
Massive ten-span concrete arch bridge over Tunkhannock Creek on Canadian Pacific Railroad at Nicholson
Open 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 Falls
Open 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 1985
Suspension bridge over Delaware River on the former Delaware & Hudson Canal
Open to one-lane traffic

Duck Creek Aqueduct Covered Bridge 14-24-11 (Franklin County, Indiana)
Built 1847; rebuilt 1949, repaired 2018
Covered aqueduct carrying Whitewater Canal over Duck Creek at Metamora


Dunlap's Creek Bridge (Fayette County, Pennsylvania)
Built 1836-39; rehabilitated 1981
Cast-iron arch bridge over Dunlap Creek on PA 4003 in Brownsville
Open 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, 2003
Three-span steel arch bridge over the Mississippi River and N. Leonor K. Sullivan Blvd. in downtown St. Louis
Upper 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 1893
Three-span stone arch bridge over Pennypack Creek on Frankford Avenue (US 13) in Holmesburg
Open to traffic

Frisco Bridge (Shelby County, Tennessee)
Completed May 12, 1892, under the direction of engineer George S. Morison; west approach replaced in 2018
Cantilevered through truss railroad bridge over the Mississippi River at Memphis
Open to railroad traffic

Golden Gate Bridge (San Francisco County, California)
Built 1937
Suspension bridge over San Francisco Bay on US 101 at San Francisco
Open to traffic

Huey P. Long Bridge (Jefferson Parish) (Jefferson Parish, Louisiana)
Opened to traffic December 16, 1935; widening completed June 16, 2013
Cantilevered through truss bridge over the Mississippi River on US 90 in Jefferson
Open to traffic

Isaac Lee Patterson Bridge (Curry County, Oregon)
Built 1930
Concrete arch bridge over Rogue River on US 101 in Gold Beach
Open to traffic

Kaibab Trail Suspension bridge (Coconino County, Arizona)
Built 1928.
Wire suspension bridge
Open to pedestrians

Keeseville Stone Arch Bridge (Essex County, New York)
Built 1843 by Soloman Townsend; rehabilitated 2000
Stone arch bridge over AuSable River on Main Street in Keeseville
Open 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 Keeseville
Open to pedestrians

Lake Pontchartrain Causeway (St. Tammany Parish, Louisiana)
First bridge built 1956
Pair of prestressed concrete bridges over Lake Pontchartrain with a length of nearly 24 miles
Open 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 1988
Open-spandrel arch bridge over Susquehanna River on PA 462 (Old Lincoln Highway) between Columbia and York Counties
Open to traffic

MBTA - Canton Viaduct (Norfolk County, Massachusetts)
Built 1835
Massive stone arch bridge over East Branch Neponset River and Neponset Street on the MBTA Railroad
Open to traffic

Mission Espada Aqueduct (Bexar County, Texas)
Built between 1731 and 1745
Stone arch bridge over Piedras Creek on Acequia Madre
Still 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 1995
Relocated wrought-iron through arch bridge on the grounds of Merrimack College in North Andover
Open to pedestrians

Navajo Bridge (Coconino County, Arizona)
Built 1927-1929; bypassed by parallel bridge in 1995
Steel arch bridge over Colorado River on Alt US 89
Open to pedestrians only

Northampton Street Bridge (1896) (Northampton County, Pennsylvania)
Built 1896; damaged and fixed 1955; rehabilitated 2002
Cantilevered through truss bridge over Delaware River on Northampton Street
Open 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 1877
Cantilever Bridge over Kentucky River on Norfolk Southern Railway (former Cincinnati Southern Railway) in High Bridge
Open to traffic

PATH - Downtown Hudson Tubes (New York County, New York)
Opened 1909
Tunnel under Hudson River on Port Authority Trans-Hudson (PATH)
Open to traffic

PATH - Uptown Hudson Tubes (New York County, New York)
Opened 1908
Tunnel 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 1985
Fink Deck truss bridge over unknown creek on Trail
Open 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 Covington
Rehabilitation Completed

Smithfield Street Bridge (Allegheny County, Pennsylvania)
Built 1883 under the direction of engineer Gustav Lindenthal
Two-span lenticular through truss bridge over Monongahela River on Smithfield Street in Pittsburgh
Open to four lanes of traffic

Starrucca Viaduct (Susquehanna County, Pennsylvania)
Built 1847-48
Massive stone arch bridge over Starrucca Creek and frmr D&H RR on New York, Susquehanna and Western Railway at Lanesboro
Open to traffic

Stone Arch Bridge (Hennepin County, Minnesota)
Built 1883 for the St. Paul, Minneapolis, and Manitoba Railway; ; Deck truss added 1963-64; rehabilitated 1994
Stone arch bridge over the Mississippi River at St. Anthony Falls in Minneapolis
Open to pedestrians only

UP - Moffat Tunnel (Grand County, Colorado)
Built 1923-1928
Tunnel under Continental Divide west of Denver on Union Pacific RR
Open 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 2008
Pin connected Pratt through truss bridge over AuSable River on River Street in Keeseville
Closed 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 1996
Through truss bridge over Susquehanna River, (east channel) in Harrisburg
Open 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 years
Suspension bridge over Ohio River on WV 251 in Wheeling
Open to pedestrians only