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 |
.jpg) |
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 |
.png) |
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 |
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 |
.jpg) |
1859 |
Watertown |
Massachusetts |
United States |
civil engineering profession |
102 |
1983 |
Atlantic City Convention Hall |
.jpg) |
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 |
_Spillway_01.jpg) |
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 |
.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.jpg) |
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 |
_001.jpg) |
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 |