Ref#
|
Year added
|
Name
|
Image
|
Built
|
Location
|
Region/state
|
Country
|
Category
|
1
|
1966
|
Bollman Truss Bridge
|
|
1869
|
Savage
|
Maryland
|
United States
|
bridges
|
2
|
1967
|
Bidwell Bar Bridge
|
|
1856
|
Oroville
|
California
|
United States
|
bridges
|
3
|
1967
|
Erie Canal
|
|
1825
|
Hudson River to Lake Erie
|
New York
|
United States
|
water transportation
|
4
|
1967
|
Middlesex Canal
|
|
1803
|
Middlesex County
|
Massachusetts
|
United States
|
water transportation
|
5
|
1968
|
Central Pacific Railroad
|
|
1863–1869
|
Sacramento eastward
|
California
|
United States
|
roads & rails
|
6
|
1968
|
Durango-Silverton Branch of the D&RGW RR
|
|
1882
|
Durango
|
Colorado
|
United States
|
roads & rails
|
7
|
1968
|
Ellicott's Stone
|
|
1799
|
Mobile
|
Alabama
|
United States
|
boundaries & surveys
|
8
|
1968
|
Acequias of San Antonio
|
|
1718
|
San Antonio
|
Texas
|
United States
|
water supply & control
|
9
|
1968
|
Joining of the Rails - Transcontinental Railroad
|
|
1869
|
Promontory
|
Utah
|
United States
|
roads & rails
|
10
|
1968
|
Wheeling Suspension Bridge
|
|
1849
|
Wheeling
|
West Virginia
|
United States
|
bridges
|
11
|
1969
|
Alvord Lake Bridge
|
|
1889
|
San Francisco
|
California
|
United States
|
bridges
|
12
|
1969
|
Charleston - Hamburg Railroad
|
|
1833
|
Charleston
|
South Carolina
|
United States
|
roads & rails
|
13
|
1970
|
Ascutney Mill Dam
|
|
1834
|
Windsor
|
Vermont
|
United States
|
dams
|
14
|
1970
|
Bridgeport Covered Bridge
|
|
1862
|
Nevada County
|
California
|
United States
|
bridges
|
15
|
1970
|
Cornish–Windsor Covered Bridge
|
|
1866, rebuilt 1988
|
Windsor to Cornish
|
Vermont and New Hampshire
|
United States
|
bridges
|
16
|
1970
|
Frankford Avenue Bridge
|
|
1697
|
Philadelphia
|
Pennsylvania
|
United States
|
bridges
|
17
|
1970
|
Potowmack Canal and Locks
|
|
1799
|
Great Falls
|
Virginia
|
United States
|
water transportation
|
18
|
1970
|
Theodore Roosevelt Dam & Salt River Project
|
|
1911
|
|
Arizona
|
United States
|
water supply & control
|
19
|
1970
|
Union Canal Tunnel
|
|
1828
|
Lebanon
|
Pennsylvania
|
United States
|
water transportation
|
20
|
1971
|
Bethlehem Waterworks
|
|
1761
|
Bethlehem
|
Pennsylvania
|
United States
|
water supply & control
|
21
|
1971
|
Druid Lake Dam
|
|
1871
|
Baltimore
|
Maryland
|
United States
|
dams
|
22
|
1971
|
Eads Bridge
|
|
1874
|
St. Louis
|
Missouri
|
United States
|
bridges
|
23
|
1971
|
First Owens River - Los Angeles Aqueduct
|
|
1913
|
Owens Valley
|
California
|
United States
|
water supply & control
|
24
|
1971
|
Mormon Tabernacle
|
|
1867
|
Salt Lake City
|
Utah
|
United States
|
buildings
|
25
|
1972
|
Cabin John Aqueduct
|
|
1863
|
Cabin John
|
Maryland
|
United States
|
water supply & control
|
26
|
1972
|
Chesbroughs Water Supply System Chicago
|
|
1869
|
Chicago
|
Illinois
|
United States
|
water supply & control
|
27
|
1972
|
Brooklyn Bridge
|
|
1883
|
New York City
|
New York
|
United States
|
bridges
|
28
|
1972
|
Gunnison Tunnel
|
|
1909
|
Montrose
|
Colorado
|
United States
|
tunnels
|
29
|
1972
|
Roebling's Delaware Aqueduct of the Delaware & Hudson Canal
|
|
1848, restored 1983
|
Lackawaxen to Minisink Ford
|
Pennsylvania & New York
|
United States
|
water transportation
|
30
|
1972
|
Miami Conservancy District
|
|
1922
|
near Dayton
|
Ohio
|
United States
|
water supply & control
|
31
|
1973
|
Buffalo Bill Dam
|
|
1910
|
Cody
|
Wyoming
|
United States
|
dams
|
32
|
1973
|
Cheesman Reservoir
|
|
1905
|
Southwest of Denver
|
Colorado
|
United States
|
dams
|
33
|
1973
|
Embudo Stream Gauging Station
|
|
1889
|
Embudo
|
New Mexico
|
United States
|
water supply & control
|
34
|
1973
|
Ingalls Building
|
|
1903
|
Cincinnati
|
Ohio
|
United States
|
buildings
|
35
|
1973
|
Pelton Impulse Water Wheel
|
|
1878
|
Camptonville
|
California
|
United States
|
power generation
|
36
|
1973
|
Starrucca Viaduct
|
|
1848
|
Lanesboro
|
Pennsylvania
|
United States
|
bridges
|
37
|
1974
|
Kansas City Park and Boulevard System
|
|
1893 to 1915
|
Kansas City
|
Missouri
|
United States
|
civil engineering profession
|
38
|
1974
|
Milwaukee Metropolitan Sewage Treatment Plant, home of Milorganite[4]
|
|
1919
|
Milwaukee
|
Wisconsin
|
United States
|
Water supply & control
|
39
|
1974
|
Philadelphia Municipal Water Supply
|
|
1801
|
Philadelphia
|
Pennsylvania
|
United States
|
water supply & control
|
40
|
1974
|
Stone Arch Bridge
|
|
1883
|
Minneapolis
|
Minnesota
|
United States
|
bridges
|
41
|
1975
|
Castillo de San Marcos
|
|
1695
|
St. Augustine
|
Florida
|
United States
|
buildings
|
42
|
1975
|
Croton Water Supply System
|
|
1842
|
New York City
|
New York
|
United States
|
water supply & control
|
43
|
1975
|
Folsom Hydroelectric Power System
|
|
1895
|
Folsom
|
California
|
United States
|
power generation
|
44
|
1975
|
Granite Railway
|
|
1826
|
Quincy
|
Massachusetts
|
United States
|
roads & rails
|
45
|
1975
|
Hoosac Tunnel
|
|
1875
|
Berkshire County
|
Massachusetts
|
United States
|
tunnels
|
46
|
1975
|
Lawrence Experiment Station
|
|
1886
|
Lawrence
|
Massachusetts
|
United States
|
civil engineering profession
|
47
|
1975
|
Marlette Lake Water System
|
|
1873 to 1887
|
Virginia City
|
Nevada
|
United States
|
water supply & control
|
48
|
1975
|
Mount Washington Cog Railway
|
|
1869
|
Mount Washington
|
New Hampshire
|
United States
|
roads & rails
|
49
|
1975
|
Smithfield Street Bridge
|
|
1883
|
Pittsburgh
|
Pennsylvania
|
United States
|
bridges
|
50
|
1975
|
Tunkhannock Viaduct
|
|
1915
|
Nicholson
|
Pennsylvania
|
United States
|
bridges
|
51
|
1976
|
Crozet's Blue Ridge Tunnel
|
|
1858
|
Waynesboro
|
Virginia
|
United States
|
tunnels
|
52
|
1976
|
Cumbres and Toltec Scenic Railroad
|
|
1880
|
Chama, New Mexico to Antonito, Colorado
|
New Mexico and Colorado
|
United States
|
roads & rails
|
53
|
1976
|
Elephant Butte Dam
|
|
1916
|
Truth or Consequences
|
New Mexico
|
United States
|
dams
|
54
|
1976
|
First Concrete Pavement
|
|
1893
|
Bellefontaine
|
Ohio
|
United States
|
roads & rails
|
55
|
1976
|
International Boundary Marker#1
|
|
1855
|
El Paso
|
Texas
|
United States
|
boundaries & surveys
|
56
|
1976
|
King's Road
|
|
1766 to 1775
|
New Smyrna
|
Florida
|
United States
|
roads & rails
|
57
|
1976
|
National Road
|
|
1811–1839
|
Cumberland, Maryland to Vandalia, Illinois
|
Midwest
|
United States
|
roads & rails
|
58
|
1977
|
Charlestown Naval Dry Dock
|
|
1833
|
Boston
|
Massachusetts
|
United States
|
water transportation
|
59
|
1977
|
City Plan of Savannah
|
|
1733
|
Savannah
|
Georgia
|
United States
|
civil engineering profession
|
60
|
1977
|
Great Falls Raceway and Power System
|
|
1800
|
Paterson
|
New Jersey
|
United States
|
power generation
|
61
|
1977
|
First New York Subway
|
|
1904
|
New York City
|
New York
|
United States
|
roads & rails
|
62
|
1977
|
Mason–Dixon line
|
|
1767
|
|
Maryland & Pennsylvania
|
United States
|
boundaries & surveys
|
63
|
1977
|
Minot's Ledge Lighthouse
|
|
1860
|
off Scituate
|
Massachusetts
|
United States
|
water transportation
|
64
|
1977
|
Mullan Road
|
|
1862
|
Walla Walla
|
Washington
|
United States
|
roads & rails
|
65
|
1977
|
Gosport Naval Dry Docks
|
|
1833
|
Portsmouth
|
Virginia
|
United States
|
water transportation
|
66
|
1977
|
Reversal of the Chicago River
|
|
1900
|
Chicago
|
Illinois
|
United States
|
water transportation
|
67
|
1977
|
Vulcan Street Plant
|
|
1882
|
Appleton
|
Wisconsin
|
United States
|
power generation
|
68
|
1977
|
William E. Ward House
|
|
1876
|
Rye
|
New York
|
United States
|
buildings
|
69
|
1978
|
Boston Subway
|
|
1897
|
Boston
|
Massachusetts
|
United States
|
roads & rails
|
70
|
1978
|
Dunlap's Creek Bridge
|
|
1839
|
Brownsville
|
Pennsylvania
|
United States
|
bridges
|
71
|
1978
|
Hudson and Manhattan Railroad Tunnel
|
|
1908
|
Jersey City to New York City
|
New Jersey & New York
|
United States
|
tunnels
|
72
|
1978
|
Newark International Airport
|
|
1928
|
Newark
|
New Jersey
|
United States
|
aviation
|
73
|
1978
|
United States Military Academy
|
|
1813
|
West Point
|
New York
|
United States
|
civil engineering profession
|
74
|
1979
|
Cleveland Hopkins Airport
|
|
1925
|
Cleveland
|
Ohio
|
United States
|
aviation
|
75
|
1979
|
Fink Deck Truss Bridge
|
|
1870
|
Lynchburg
|
Virginia
|
United States
|
bridges
|
76
|
1979
|
Fink Through Truss Bridge
|
|
1858
|
Hamden
|
New Jersey
|
United States
|
bridges
|
77
|
1979
|
Iron Bridge
|
|
1779
|
Ironbridge
|
West Midlands
|
England
|
bridges
|
78
|
1979
|
Moffat Tunnel
|
|
1928
|
Winter Park
|
Colorado
|
United States
|
tunnels
|
79
|
1979
|
Rockville Bridge
|
|
1902
|
Harrisburg
|
Pennsylvania
|
United States
|
bridges
|
80
|
1980
|
Goodyear Airdock
|
|
1929
|
Akron
|
Ohio
|
United States
|
aviation
|
81
|
1980
|
Hydraulic-Inclined Plane System of the Morris Canal
|
|
1831
|
Stanhope
|
New Jersey
|
United States
|
water transportation
|
82
|
1981
|
Borden Base Line
|
|
1831
|
Hatfield
|
Massachusetts
|
United States
|
boundaries & surveys
|
83
|
1981
|
Chain of Rocks Water Purification Plant
|
|
1904
|
St. Louis
|
Missouri
|
United States
|
water supply & control
|
84
|
1981
|
Charles River Basin Project
|
|
1910
|
Boston
|
Massachusetts
|
United States
|
water supply & control
|
85
|
1981
|
Cortland Street Drawbridge
|
|
1902
|
Chicago
|
Illinois
|
United States
|
bridges
|
86
|
1981
|
George Washington Bridge
|
|
1931
|
Fort Lee to New York City
|
New Jersey & New York
|
United States
|
bridges
|
87
|
1981
|
Louisville Water Works
|
|
1875 to 1896
|
Louisville
|
Kentucky
|
United States
|
water supply & control
|
88
|
1981
|
Montgomery Bell's Tunnel
|
|
1818
|
Cheatham County
|
Tennessee
|
United States
|
tunnels
|
89
|
1981
|
Snoqualmie Falls Cavity Generating Station
|
|
1899
|
Snoqualmie
|
Washington
|
United States
|
power generation
|
90
|
1981
|
Union Station
|
|
1894
|
St. Louis
|
Missouri
|
United States
|
roads & rails
|
91
|
1981
|
Washington Monument
|
|
1885
|
Washington
|
District of Columbia
|
United States
|
buildings
|
92
|
1981
|
Whipple Truss Bridge
|
|
1855
|
Schenectady
|
New York
|
United States
|
bridges
|
93
|
1982
|
Carrollton Viaduct
|
|
1829
|
Baltimore
|
Maryland
|
United States
|
bridges
|
94
|
1982
|
Detroit-Windsor Tunnel
|
|
1930
|
Detroit
|
Michigan
|
United States
|
tunnels
|
95
|
1982
|
Eads South Pass Navigation Works
|
|
1879
|
Venice
|
Louisiana
|
United States
|
water transportation
|
96
|
1982
|
Holland Tunnel
|
|
1927
|
Jersey City to New York City
|
New Jersey & New York
|
United States
|
tunnels
|
97
|
1982
|
John A. Roebling Suspension Bridge
|
|
1866
|
Cincinnati
|
Ohio
|
United States
|
bridges
|
98
|
1982
|
Kinzua Railway Viaduct
|
|
1882
|
McKean County
|
Pennsylvania
|
United States
|
bridges
|
99
|
1982
|
Rogue River Bridge
|
|
1931
|
Gold Beach
|
Oregon
|
United States
|
bridges
|
100
|
1982
|
Second Street Bridge
|
|
1886
|
Allegan
|
Michigan
|
United States
|
bridges
|
101
|
1982
|
Watertown Arsenal
|
|
1859
|
Watertown
|
Massachusetts
|
United States
|
civil engineering profession
|
102
|
1983
|
Atlantic City Convention Hall
|
|
1929
|
Atlantic City
|
New Jersey
|
United States
|
buildings
|
103
|
1983
|
Bailey Island Bridge
|
|
1928
|
Harpswell
|
Maine
|
United States
|
bridges
|
104
|
1983
|
Blenheim Bridge
|
|
1855
|
North Blenheim
|
New York
|
United States
|
bridges
|
105
|
1983
|
Iron Building of the U.S. Army Arsenal
|
|
1859
|
Watervliet
|
New York
|
United States
|
buildings
|
106
|
1983
|
Ohio Canal System
|
|
1848
|
Akron
|
Ohio
|
United States
|
water transportation
|
107
|
1983
|
Peavey-Haglin Experimental Concrete Grain Elevator
|
|
1900
|
St. Louis Park
|
Minnesota
|
United States
|
buildings
|
108
|
1983
|
Sault Ste. Marie Hydroelectric Complex
|
|
1902
|
Sault Ste. Marie
|
Michigan
|
United States
|
power generation
|
109
|
1984
|
Columbia River Scenic Highway
|
|
1922
|
Portland
|
Oregon
|
United States
|
roads & rails
|
110
|
1984
|
Columbia-Wrightsville Bridge
|
|
1930
|
Columbia
|
Pennsylvania
|
United States
|
bridges
|
111
|
1984
|
Golden Gate Bridge
|
|
1937
|
San Francisco
|
California
|
United States
|
bridges
|
112
|
1984
|
Hoover Dam
|
|
1935
|
Boulder City
|
Nevada & Arizona
|
United States
|
dams
|
113
|
1984
|
Lowell Waterpower System
|
|
1821
|
Lowell
|
Massachusetts
|
United States
|
power generation
|
114
|
1984
|
Panama Canal
|
|
1914
|
|
|
Panama
|
water transportation
|
115
|
1984
|
Rocky River Pumped Storage Hydro-Plant
|
|
1925
|
New Milford
|
Connecticut
|
United States
|
power generation
|
116
|
1985
|
Bayonne Bridge
|
|
1931
|
Bayonne to Staten Island
|
New Jersey & New York
|
United States
|
bridges
|
117
|
1985
|
Beginning Point of the U.S. Public Land Survey
|
|
1785
|
Liverpool
|
Ohio
|
United States
|
boundaries & surveys
|
118
|
1985
|
Cape Cod Canal
|
|
1914
|
Barnstable County
|
Massachusetts
|
United States
|
water transportation
|
119
|
1985
|
Chesapeake and Delaware Canal
|
|
1828 (rebuilt 1927)
|
New Castle
|
Delaware
|
United States
|
water transportation
|
120
|
1985
|
Davis Island Lock and Dam
|
|
1885
|
Pittsburgh
|
Pennsylvania
|
United States
|
water transportation
|
121
|
1985
|
Forth Railway Bridge
|
|
1890
|
|
|
Scotland
|
bridges
|
122
|
1985
|
Going-to-the-Sun Road
|
|
1932
|
Glacier National Park
|
Montana
|
United States
|
roads & rails
|
123
|
1985
|
High Bridge
|
|
1877
|
Jessamine & Mercer Counties
|
Kentucky
|
United States
|
bridges
|
124
|
1985
|
Statue of Liberty
|
|
1886
|
New York Harbor
|
New York[5]
|
United States
|
buildings
|
125
|
1986
|
White River Concrete Arch Bridge
|
|
1930
|
Cotter
|
Arkansas
|
United States
|
bridges
|
126
|
1986
|
Cranetown Triangulation Site
|
|
1817
|
Cedar Grove
|
New Jersey
|
United States
|
boundaries & surveys
|
127
|
1986
|
Eiffel Tower
|
|
1889
|
Paris
|
Île-de-France
|
France
|
buildings
|
128
|
1986
|
El Camino Real
|
|
1598-1800s
|
Santa Fe and Mexico City
|
New Mexico
|
United States and Mexico
|
roads & rails
|
129
|
1986
|
El Camino Real (The Royal Road) Eastern Branch
|
|
from 16th century
|
San Antonio
|
Texas
|
United States
|
roads & rails
|
130
|
1986
|
New Castle Ice Harbor
|
|
1974
|
New Castle
|
Delaware
|
United States
|
water transportation
|
131
|
1986
|
Norris Dam
|
|
1936
|
Knoxville
|
Tennessee
|
United States
|
dams
|
132
|
1986
|
San Francisco–Oakland Bay Bridge
|
|
1937
|
San Francisco to Oakland
|
California
|
United States
|
bridges
|
133
|
1986
|
Sewall's Bridge
|
|
1761 (rebuilt 1934)
|
York
|
Maine
|
United States
|
bridges
|
134
|
1986
|
Triborough Bridge Project
|
|
1936
|
New York City
|
New York
|
United States
|
bridges
|
135
|
1986
|
U.S. Army Corps of Engineers Waterways Exp. Station
|
|
1929
|
Vicksburg
|
Mississippi
|
United States
|
civil engineering profession
|
136
|
1986
|
U.S. Capitol
|
|
1793, rebuilt 1863
|
Washington
|
District of Columbia
|
United States
|
buildings
|
137
|
1986
|
Zuiderzee Enclosure Dam
|
|
1927 to 1932
|
Zaandam
|
North Holland
|
Netherlands
|
water supply & control
|
138
|
1987
|
Allegheny Portage Railroad
|
|
1834
|
Hollidaysburg
|
Pennsylvania
|
United States
|
roads & rails
|
139
|
1987
|
Bonneville Dam, Columbia River System
|
|
1937
|
Bonneville
|
Oregon
|
United States
|
power generation
|
140
|
1987
|
Bridges of Keeseville
|
|
1843, 1878, 1888
|
Keeseville
|
New York
|
United States
|
bridges
|
141
|
1987
|
Dismal Swamp Canal
|
|
1805
|
Chesapeake
|
Virginia
|
United States
|
water transportation
|
142
|
1987
|
Houston Ship Channel
|
|
1837–present
|
Houston
|
Texas
|
United States
|
water transportation
|
143
|
1987
|
Kamehameha V Post Office
|
|
1871
|
Honolulu
|
Hawaii
|
United States
|
buildings
|
144
|
1987
|
Frisco Bridge
|
|
1892
|
Memphis
|
Tennessee & Arkansas
|
United States
|
bridges
|
145
|
1987
|
Quebec Bridge
|
|
1917
|
Quebec City
|
Quebec
|
Canada
|
bridges
|
146
|
1988
|
Belle Fourche Dam
|
|
1911
|
Belle Fourche
|
South Dakota
|
United States
|
dams
|
147
|
1988
|
École Nationale des Ponts et Chaussées
|
|
1747
|
Paris
|
Île-de-France
|
France
|
buildings
|
148
|
1988
|
Keokuk Hydro-Power System
|
|
1913
|
Keokuk
|
Iowa
|
United States
|
power generation
|
149
|
1988
|
Pennsylvania Turnpike
|
|
1940
|
|
Pennsylvania
|
United States
|
roads & rails
|
150
|
1988
|
River des Peres Sewerage & Drainage Works
|
|
1924 to 1931
|
St. Louis
|
Missouri
|
United States
|
water supply & control
|
151
|
1988
|
Sydney Harbour Bridge
|
|
1932
|
Sydney
|
New South Wales
|
Australia
|
bridges
|
152
|
1989
|
Royal Colonial Boundary of 1665
|
|
1728–1819
|
Middlesboro
|
Kentucky
|
United States
|
boundaries & surveys
|
153
|
1989
|
Zhaozhou Bridge
|
|
605 AD
|
Zhaoxian
|
Hebei
|
China
|
bridges
|
154
|
1990
|
Fort Peck Dam
|
|
1940
|
Fort Peck
|
Montana
|
United States
|
dams
|
155
|
1990
|
Maria Pia Bridge
|
|
1877
|
Oporto
|
Norte
|
Portugal
|
bridges
|
156
|
1990
|
Salginatobel Bridge
|
|
1930
|
Grisons
|
Graubünden
|
Switzerland
|
bridges
|
157
|
1991
|
Eddystone Lighthouse
|
|
1882
|
off Plymouth
|
|
England
|
water transportation
|
158
|
1991
|
Fritz Engineering Laboratory
|
|
1910
|
Bethlehem
|
Pennsylvania
|
United States
|
civil engineering profession
|
159
|
1991
|
St. Clair Tunnel
|
|
1891
|
Port Huron
|
Michigan
|
United States
|
tunnels
|
160
|
1991
|
Thames Tunnel
|
|
1843
|
London
|
|
England
|
tunnels
|
161
|
1992
|
Acquedotto Traiano-Paolo
|
|
110 AD
|
Rome
|
Lazio
|
Italy
|
water supply & control
|
162
|
1992
|
Niagara Falls Suspension Bridge
|
|
1849, 1855, 1883, 1898, 1941
|
Niagara Gorge
|
Ontario and New York
|
Canada and United States
|
bridges
|
163
|
1992
|
Duck Creek Aqueduct
|
|
1846
|
Metamora
|
Indiana
|
United States
|
water supply & control
|
164
|
1992
|
Hohokam Canal System
|
|
600 - 1450 AD
|
|
Arizona
|
United States
|
water supply & control
|
165
|
1992
|
San Jacinto Monument
|
|
1939
|
Houston
|
Texas
|
United States
|
buildings
|
166
|
1993
|
Blimp Hangars
|
|
1943
|
Tustin
|
California
|
United States
|
aviation
|
167
|
1993
|
Denison Dam
|
|
1943
|
Denison
|
Texas
|
United States
|
dams
|
168
|
1993
|
Hanford B Reactor
|
|
1944
|
Richland
|
Washington
|
United States
|
power generation
|
169
|
1993
|
Stevens Pass Railroad Tunnels & Switchback System
|
|
1900
|
Stevens Pass
|
Washington
|
United States
|
tunnels
|
170
|
1994
|
Colorado River Aqueduct
|
|
1933–1941
|
Blythe
|
California
|
United States
|
water supply & control
|
171
|
1994
|
Kavanagh Building
|
|
1936
|
Buenos Aires
|
|
Argentina
|
buildings
|
172
|
1994
|
Missouri River Bridges
|
|
1926
|
Chamberlain
|
South Dakota
|
United States
|
bridges
|
173
|
1994
|
Red Hill Underground Fuel Storage Facility
|
|
1943
|
Honolulu
|
Hawaii
|
United States
|
tunnels
|
174
|
1994
|
Viaducto del Malleco
|
|
1890
|
Malleco River
|
Central Chile
|
Chile
|
bridges
|
175
|
1994
|
White Pass and Yukon Route
|
|
1900
|
Whitehorse, Yukon to Skagway, Alaska
|
Yukon Territory to Alaska
|
Canada & United States
|
roads & rails
|
176
|
1995
|
Alaska Highway
|
|
1942
|
Dawson Creek to Delta Junction
|
British Columbia to Alaska
|
Canada & United States
|
roads & rails
|
177
|
1995
|
Banaue Rice Terraces
|
File:Banaue Rice Terraces (Viewpoint).jpg
|
100 BC
|
Banaue
|
Ifugao
|
Philippines
|
water supply & control
|
178
|
1995
|
Queretaro Aqueduct
|
|
1738
|
Querétaro
|
|
Mexico
|
water supply & control
|
179
|
1995
|
Victoria Falls Bridge
|
|
1905
|
Zambezi River
|
|
Zimbabwe & Zambia
|
bridges
|
180
|
1996
|
Armour-Swift-Burlington Bridge
|
|
1912
|
Kansas City
|
Missouri
|
United States
|
bridges
|
181
|
1996
|
Dublin-Belfast railway line
|
|
1839
|
Dublin to Belfast
|
|
Ireland & Northern Ireland
|
roads & rails
|
182
|
1996
|
Kentucky Dam
|
|
1944
|
Gilbertsville
|
Kentucky
|
United States
|
dams
|
183
|
1996
|
Lake Moeris Quarry Road
|
|
2575-2137 BC
|
Lake Moeris
|
|
Egypt
|
roads & rails
|
184
|
1996
|
City Plan of Philadelphia
|
|
1682
|
Philadelphia
|
Pennsylvania
|
United States
|
civil engineering profession
|
185
|
1996
|
San Antonio River Walk & Flood Control System
|
|
1929 to 1941
|
San Antonio
|
Texas
|
United States
|
water control & supply
|
186
|
1997
|
Grand Coulee Dam
|
|
1941
|
Grand Coulee
|
Washington
|
United States
|
dams
|
187
|
1997
|
Lake Washington Ship Canal & Hiram M. Chittenden Locks
|
|
1917
|
Seattle
|
Washington
|
United States
|
water transportation
|
188
|
1997
|
Navajo Bridge
|
|
1929
|
Page
|
Arizona
|
United States
|
bridges
|
189
|
1997
|
North Island Main Trunk Railway
|
|
1885–1908
|
Auckland to Wellington
|
North Island
|
New Zealand
|
roads & rails
|
190
|
1997
|
Northampton Street Bridge
|
|
1896
|
Easton to Phillipsburg
|
Pennsylvania & New Jersey
|
United States
|
bridges
|
191
|
1997
|
Snowy Mountains Scheme
|
|
1974
|
Snowy Mountains
|
New South Wales
|
Australia
|
power generation
|
192
|
1997
|
Texas Commerce Bank Building (formerly Gulf, now Chase)
|
|
1929
|
Houston
|
Texas
|
United States
|
buildings
|
193
|
1997
|
Walnut Street Bridge
|
|
1890
|
Harrisburg
|
Pennsylvania
|
United States
|
bridges
|
194
|
1998
|
Brooks AFB, Old Hangar 9
|
|
1918
|
San Antonio
|
Texas
|
United States
|
aviation
|
195
|
1998
|
Canton Viaduct
|
|
1835
|
Canton
|
Massachusetts
|
United States
|
bridges
|
196
|
1998
|
Göta Canal
|
|
1810 to 1832
|
Gothenburg
|
Västra Götaland
|
Sweden
|
water transportation
|
197
|
1998
|
Moseley Wrought Iron Arch Bridge
|
|
1864
|
North Andover
|
Massachusetts
|
United States
|
bridges
|
198
|
1998
|
Tehachapi Pass Railroad Line
|
|
1876
|
Kern County
|
California
|
United States
|
roads & rails
|
199
|
1999
|
Acueducto de Segovia
|
|
50 AD
|
Segovia
|
Castile and León
|
Spain
|
water supply & control
|
200
|
1999
|
Arroyo Seco Parkway
|
|
1940
|
Los Angeles
|
California
|
United States
|
roads & rails
|
201
|
1999
|
Blue Ridge Parkway
|
|
begun 1935
|
|
Virginia & North Carolina
|
United States
|
roads & rails
|
202
|
1999
|
Cape Hatteras Lighthouse
|
|
1870
|
Cape Hatteras
|
North Carolina
|
United States
|
water transportation
|
203
|
1999
|
Maine Turnpike
|
|
1947
|
|
Maine
|
United States
|
roads & rails
|
204
|
1999
|
McNeill Street Pumping Station
|
|
1887
|
Shreveport
|
Louisiana
|
United States
|
water supply & control
|
205
|
2000
|
Cedar Falls Water Supply
|
|
1901
|
Seattle
|
Washington
|
United States
|
water supply & control
|
206
|
2000
|
Forth and Clyde Canal and Union Canal
|
|
1790
|
|
|
Scotland
|
water transportation
|
207
|
2000
|
Hagia Sophia
|
|
537 AD
|
Istanbul
|
Istanbul
|
Turkey
|
buildings
|
208
|
2000
|
Muskingum River Navigation System
|
|
1837
|
Zanesville
|
Ohio
|
United States
|
water transportation
|
209
|
2000
|
Seventh Street Improvement Arches
|
|
1909
|
St. Paul
|
Minnesota
|
United States
|
bridges
|
210
|
2000
|
West Baden Springs Hotel
|
|
1902
|
West Baden Springs
|
Indiana
|
United States
|
buildings
|
211
|
2001
|
Bunker Hill Covered Bridge
|
|
1895, rebuilt 1994
|
Claremont
|
North Carolina
|
United States
|
bridges
|
212
|
2001
|
Galveston Seawall and Grade Raising
|
|
1904 (expanded through 1963)
|
Galveston
|
Texas
|
United States
|
water supply & control
|
213
|
2001
|
Baltimore & Ohio Roundhouse & Shop Complex
|
|
1842 to 1850s
|
Martinsburg
|
West Virginia
|
United States
|
buildings
|
214
|
2002
|
Conwy Suspension Bridge
|
|
1826
|
Conwy
|
Conwy
|
Wales
|
bridges
|
215
|
2002
|
Conwy Tubular Bridge
|
|
1849
|
Conwy
|
Conwy
|
Wales
|
bridges
|
216
|
2002
|
Dorton Arena
|
|
1952
|
Raleigh
|
North Carolina
|
United States
|
buildings
|
217
|
2002
|
East Maui Irrigation System
|
|
1876 to 1923
|
East Maui
|
Hawaii
|
United States
|
water supply & control
|
218
|
2002
|
Five Stone Arch Bridges
|
|
1830 to 1866
|
Hillsborough
|
New Hampshire
|
United States
|
bridges
|
219
|
2002
|
Louisville and Portland Canal Locks & Dam
|
|
1830, rebuilt 1962
|
Louisville
|
Kentucky
|
United States
|
water transportation
|
220
|
2002
|
Marshall Building
|
|
1906
|
Milwaukee
|
Wisconsin
|
United States
|
buildings
|
221
|
2002
|
Menai Suspension Bridge
|
|
1826
|
Anglesey
|
|
Wales
|
bridges
|
222
|
2002
|
Old Cape Henry Light,
|
|
1792, replaced 1881
|
Virginia Beach
|
Virginia
|
United States
|
water transportation
|
223
|
2002
|
Portland Head Light
|
|
1787
|
Cape Elizabeth
|
Maine
|
United States
|
water transportation
|
224
|
2002
|
Shannon Hydroelectric Scheme
|
|
1929
|
|
|
Ireland
|
power generation
|
225
|
2002
|
Waldo-Hancock Suspension Bridge
|
|
1931
|
Bucksport
|
Maine
|
United States
|
bridges
|
226
|
2003
|
Horseshoe Curve
|
|
1854
|
Altoona
|
Pennsylvania
|
United States
|
roads & rails
|
227
|
2003
|
Suez Canal
|
|
1869
|
|
|
Egypt
|
water transportation
|
228
|
2003
|
Tennessee State Capitol
|
|
1845 to 1877
|
Nashville
|
Tennessee
|
United States
|
buildings
|
229
|
2004
|
Hwaseong Fortress
|
|
1796
|
Suwon
|
Gyeonggi-do
|
Republic of Korea
|
buildings
|
230
|
2004
|
Mesa Verde Reservoirs
|
|
750 to 1180 AD
|
Montezuma County
|
Colorado
|
United States
|
water supply & control
|
231
|
2004
|
Northern Pacific High Line Bridge No 64
|
|
1908
|
Valley City
|
North Dakota
|
United States
|
bridges
|
232
|
2004
|
Old Wisla Bridge
|
|
|
Tczew
|
Vistula River
|
Poland
|
bridges
|
233
|
2005
|
Great Western Railway
|
|
1838
|
|
|
England & Wales
|
roads & rails
|
234
|
2005
|
Philadelphia City Hall
|
|
1901
|
Philadelphia
|
Pennsylvania
|
United States
|
buildings
|
235
|
2005
|
Sweetwater Dam
|
|
1888
|
Spring Valley
|
California
|
United States
|
dams
|
236
|
2005
|
Stanley Hydraulics Laboratory at the University of Iowa
|
|
established 1919
|
Iowa City
|
Iowa
|
United States
|
Civil Engineering Profession
|
237
|
2006
|
Machu Picchu
|
|
1460 AD
|
|
|
Peru
|
civil engineering profession
|
238
|
2006
|
Portland Observatory
|
|
1807
|
Portland
|
Maine
|
United States
|
water transportation
|
239
|
2006
|
Tipon
|
|
1200 - 1534 AD
|
|
|
Peru
|
water supply & control
|
240
|
2007
|
Caledonian Canal
|
|
1822
|
Great Glen
|
|
Scotland
|
water transportation
|
241
|
2007
|
Craigellachie Bridge Moray
|
|
1814
|
Strathspey
|
|
Scotland
|
bridges
|
242
|
2008
|
Choate Bridge
|
|
1764
|
Ipswich
|
Massachusetts
|
United States
|
bridges
|
243
|
2008
|
Goldfields Water Supply
|
|
1903
|
Kalgoorlie
|
Western Australia
|
Australia
|
water supply & control
|
244
|
2008
|
Lacey V. Murrow Bridge and Mount Baker Ridge Tunnels
|
|
1940
|
King County
|
Washington
|
United States
|
bridges
|
245
|
2008
|
Woodhead Dam
|
|
1897
|
Cape Town
|
Western Cape
|
South Africa
|
dams
|
246
|
2009
|
Guayabo Ceremonial Center
|
|
300 BC - AD 1400
|
Turrialba
|
Turrialba
|
Costa Rica
|
civil engineering profession
|
247
|
2009
|
Vancouver's Mapping of the West Coast of North America
|
|
1791–1795
|
|
|
Canada, Mexico and United States
|
boundaries & surveys
|
248
|
2009
|
Poughkeepsie-Highland Bridge
|
|
1886–1888
|
Poughkeepsie
|
New York
|
United States
|
bridges
|
249
|
2009
|
Manhattan Bridge
|
|
1909
|
New York City
|
New York
|
United States
|
bridges
|
250
|
2009
|
Queensboro Bridge
|
|
1909
|
New York City
|
New York
|
United States
|
bridges
|
251
|
2009
|
Williamsburg Bridge
|
|
1903
|
New York City
|
New York
|
United States
|
bridges
|
252
|
2010
|
Mackinac Bridge
|
|
1958
|
Straits of Mackinac
|
Michigan
|
United States
|
bridges
|
253
|
2010
|
Rensselaer Polytechnic Institute
|
|
1824
|
Troy
|
New York
|
United States
|
civil engineering profession
|
254
|
2011
|
Petra
|
|
309 BC
|
|
Ma'an Governorate
|
Jordan
|
buildings
|
255
|
2011
|
Utica Memorial Auditorium
|
|
1959
|
Utica
|
New York
|
United States
|
buildings
|
256
|
2011
|
Flight of Five Locks
|
|
1915
|
Waterford
|
New York
|
United States
|
water transportation
|
257
|
2012
|
Zion-Mount Carmel Tunnel and Highway
|
|
1930
|
Zion National Park
|
Utah
|
United States
|
roads & rails
|
258
|
2012
|
Huey P. Long Bridge
|
|
1935
|
Jefferson Parish
|
Louisiana
|
United States
|
bridges
|
259
|
2012
|
Grand Central Terminal
|
|
1913
|
New York City
|
New York
|
United States
|
roads & rails
|
260
|
2013
|
Titan crane
|
|
1907
|
Clydebank
|
West Dunbartonshire
|
Scotland
|
buildings
|
261
|
2013
|
Waterford Bridges
|
|
1909
|
Troy and Waterford
|
New York
|
United States
|
bridges
|
262
|
2013
|
Lake Pontchartrain Causeway
|
|
1956
|
Lake Pontchartrain
|
Louisiana
|
United States
|
bridges
|
263
|
2014
|
The Dalles Dam
|
|
1957
|
Columbia River
|
Oregon & Washington
|
United States
|
dams
|