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List of Historic Civil Engineering Landmarks

From Wikipedia, the free encyclopedia

The following is a list of Historic Civil Engineering Landmarks as designated by the American Society of Civil Engineers since it began the program in 1964. The designation is granted to projects, structures, and sites in the United States (National Historic Civil Engineering Landmarks) and the rest of the world (International Historic Civil Engineering Landmarks).

As of 2024, there are 235 designated Historic Civil Engineering Landmarks in the United States and 61 internationally, totaling 296 landmarks worldwide. [1] Sections or chapters of the American Society of Civil Engineers may also designate state or local landmarks within their areas; those landmarks are not listed here.

Ref# Year designated Name Image Built Location
Coordinates 		Region/state Country Category
1 1966 Bollman Truss Bridge 1869 Savage
39°8′5.4″N 76°49′30.3″W / 39.134833°N 76.825083°W / 39.134833; -76.825083 (Bollman Truss Bridge) 		Maryland United States bridges
2 1967 Bidwell Bar Bridge 1856 Oroville
39°32′14.8″N 121°27′15.6″W / 39.537444°N 121.454333°W / 39.537444; -121.454333 (Bidwell Bar Bridge) 		California United States bridges
3 1967 Erie Canal 1825 Hudson River to Lake Erie
43°2′35.6″N 76°1′20.2″W / 43.043222°N 76.022278°W / 43.043222; -76.022278 (Erie Canal) 		New York United States water transportation
4 1967 Middlesex Canal 1803 Middlesex County
42°30′21.4″N 71°9′25.8″W / 42.505944°N 71.157167°W / 42.505944; -71.157167 (Middlesex Canal) 		Massachusetts United States water transportation
5 1968 Central Pacific Railroad 1863–1869 Sacramento eastward
38°34′57″N 121°30′22.8″W / 38.58250°N 121.506333°W / 38.58250; -121.506333 (Central Pacific Railroad) 		California United States roads & rails
6 1968 Durango-Silverton Branch of the D&RGW RR 1882 Durango
37°35′27.7″N 107°46′41.6″W / 37.591028°N 107.778222°W / 37.591028; -107.778222 (Durango-Silverton Branch of the D&RGW RR) 		Colorado United States roads & rails
7 1968 Ellicott's Stone 1799 Mobile
30°59′52″N 88°1′21.1″W / 30.99778°N 88.022528°W / 30.99778; -88.022528 (Ellicott's Stone) 		Alabama United States surveys & maps
8 1968 Acequias of San Antonio 1718 San Antonio
29°19′57.1″N 98°27′41.1″W / 29.332528°N 98.461417°W / 29.332528; -98.461417 (Acequias of San Antonio) 		Texas United States water supply & control
9 1968 Joining of the Rails - Transcontinental Railroad 1869 Promontory
41°37′4.7″N 112°33′5.8″W / 41.617972°N 112.551611°W / 41.617972; -112.551611 (Joining of the Rails - Transcontinental Railroad) 		Utah United States roads & rails
10 1968 Wheeling Suspension Bridge 1849 Wheeling
40°4′12.8″N 80°43′36.7″W / 40.070222°N 80.726861°W / 40.070222; -80.726861 (Wheeling Suspension Bridge) 		West Virginia United States bridges
11 1969 Alvord Lake Bridge 1889 San Francisco
37°46′8.4″N 122°27′17.6″W / 37.769000°N 122.454889°W / 37.769000; -122.454889 (Alvord Lake Bridge) 		California United States bridges
12 1969 Charleston - Hamburg Railroad 1833 Charleston to Hamburg
32°47′22.9″N 79°56′15.8″W / 32.789694°N 79.937722°W / 32.789694; -79.937722 (Charleston - Hamburg Railroad) 		South Carolina United States roads & rails
13 1970 Ascutney Mill Dam 1834 Windsor
43°28′35″N 72°23′44.5″W / 43.47639°N 72.395694°W / 43.47639; -72.395694 (Ascutney Mill Dam) 		Vermont United States dams
14 1970 Bridgeport Covered Bridge 1862 Nevada County
39°17′34.2″N 121°11′41.7″W / 39.292833°N 121.194917°W / 39.292833; -121.194917 (Bridgeport Covered Bridge) 		California United States bridges
15 1970 Cornish–Windsor Covered Bridge 1866, rebuilt 1988 Windsor to Cornish
43°28′25.3″N 72°23′2.1″W / 43.473694°N 72.383917°W / 43.473694; -72.383917 (Cornish–Windsor Covered Bridge) 		Vermont and New Hampshire United States bridges
16 1970 Frankford Avenue Bridge 1697 Philadelphia
40°2′36.7″N 75°1′14″W / 40.043528°N 75.02056°W / 40.043528; -75.02056 (Frankford Avenue Bridge) 		Pennsylvania United States bridges
17 1970 Potowmack Canal and Locks 1799 Great Falls
38°59′25.3″N 77°14′58.1″W / 38.990361°N 77.249472°W / 38.990361; -77.249472 (Potowmack Canal and Locks) 		Virginia United States water transportation
18 1970 Theodore Roosevelt Dam & Salt River Project 1911 33°40′17.9″N 111°9′40.8″W / 33.671639°N 111.161333°W / 33.671639; -111.161333 (Theodore Roosevelt Dam & Salt River Project) Arizona United States water supply & control
19 1970 Union Canal Tunnel 1828 Lebanon
40°20′58.5″N 76°27′41″W / 40.349583°N 76.46139°W / 40.349583; -76.46139 (Union Canal Tunnel) 		Pennsylvania United States water transportation
20 1971 Bethlehem Waterworks 1761 Bethlehem
40°37′8.7″N 75°22′58.2″W / 40.619083°N 75.382833°W / 40.619083; -75.382833 (Bethlehem Waterworks) 		Pennsylvania United States water supply & control
21 1971 Druid Lake Dam 1871 Baltimore
39°19′7″N 76°37′53″W / 39.31861°N 76.63139°W / 39.31861; -76.63139 (Druid Lake Dam) 		Maryland United States dams
22 1971 Eads Bridge 1874 St. Louis
38°37′44″N 90°10′43.3″W / 38.62889°N 90.178694°W / 38.62889; -90.178694 (Eads Bridge) 		Missouri United States bridges
23 1971 First Owens River - Los Angeles Aqueduct 1913 Owens Valley
36°58′32.4″N 118°12′38″W / 36.975667°N 118.21056°W / 36.975667; -118.21056 (First Owens River - Los Angeles Aqueduct) 		California United States water supply & control
24 1971 Mormon Tabernacle 1867 Salt Lake City
40°46′13.6″N 111°53′35.3″W / 40.770444°N 111.893139°W / 40.770444; -111.893139 (Mormon Tabernacle) 		Utah United States buildings
25 1972 Cabin John Aqueduct 1863 Cabin John
38°58′22″N 77°8′54.9″W / 38.97278°N 77.148583°W / 38.97278; -77.148583 (Cabin John Aqueduct) 		Maryland United States water supply & control
26 1972 Chesbroughs Water Supply System Chicago 1869 Chicago
41°53′49.8″N 87°37′27.9″W / 41.897167°N 87.624417°W / 41.897167; -87.624417 (Chesbroughs Water Supply System Chicago) 		Illinois United States water supply & control
27 1972 Brooklyn Bridge 1883 New York City
40°42′22″N 73°59′48.8″W / 40.70611°N 73.996889°W / 40.70611; -73.996889 (Brooklyn Bridge) 		New York United States bridges
28 1972 Gunnison Tunnel 1909 Montrose
38°29′36″N 107°43′17″W / 38.49333°N 107.72139°W / 38.49333; -107.72139 (Gunnison Tunnel) 		Colorado United States tunnels
29 1972 Roebling's Delaware Aqueduct of the Delaware & Hudson Canal 1848, restored 1983 Lackawaxen to Minisink Ford
41°28′57.5″N 74°59′4.1″W / 41.482639°N 74.984472°W / 41.482639; -74.984472 (Roebling's Delaware Aqueduct of the Delaware & Hudson Canal) 		Pennsylvania & New York United States water transportation
30 1972 Miami Conservancy District 1922 near Dayton
39°45′49.2″N 84°11′29.2″W / 39.763667°N 84.191444°W / 39.763667; -84.191444 (Miami Conservancy District) 		Ohio United States water supply & control
31 1973 Buffalo Bill Dam 1910 Cody
44°30′5.3″N 109°10′59.4″W / 44.501472°N 109.183167°W / 44.501472; -109.183167 (Buffalo Bill Dam) 		Wyoming United States dams
32 1973 Cheesman Reservoir 1905 Southwest of Denver
39°12′27″N 105°16′20.1″W / 39.20750°N 105.272250°W / 39.20750; -105.272250 (Cheesman Reservoir) 		Colorado United States dams
33 1973 Embudo Stream Gauging Station 1889 Embudo
36°12′18.4″N 105°57′49.2″W / 36.205111°N 105.963667°W / 36.205111; -105.963667 (Embudo Stream Gauging Station) 		New Mexico United States water supply & control
34 1973 Ingalls Building 1903 Cincinnati
39°6′1″N 84°30′45.1″W / 39.10028°N 84.512528°W / 39.10028; -84.512528 (Ingalls Building) 		Ohio United States buildings
35 1973 Pelton Impulse Water Wheel 1878 Camptonville
39°27′7″N 121°2′55″W / 39.45194°N 121.04861°W / 39.45194; -121.04861 (Pelton Impulse Water Wheel) 		California United States power generation
36 1973 Starrucca Viaduct 1848 Lanesboro
41°57′51.3″N 75°35′0.6″W / 41.964250°N 75.583500°W / 41.964250; -75.583500 (Starrucca Viaduct) 		Pennsylvania United States bridges
37 1974 Kansas City Park and Boulevard System 1893 to 1915 Kansas City
39°4′57″N 94°33′18″W / 39.08250°N 94.55500°W / 39.08250; -94.55500 (Kansas City Park and Boulevard System) 		Missouri United States surveys & maps
38 1974 Milwaukee Metropolitan Sewage Treatment Plant, home of Milorganite[2] 1919 Milwaukee
43°1′21.3″N 87°53′57.3″W / 43.022583°N 87.899250°W / 43.022583; -87.899250 (Milwaukee Metropolitan Sewage Treatment Plant) 		Wisconsin United States water supply & control
39 1974 Philadelphia Municipal Water Supply 1801 Philadelphia
39°57′56″N 75°10′51″W / 39.96556°N 75.18083°W / 39.96556; -75.18083 (Philadelphia Municipal Water Supply) 		Pennsylvania United States water supply & control
40 1974 Stone Arch Bridge 1883 Minneapolis
44°58′50.8″N 93°15′12.3″W / 44.980778°N 93.253417°W / 44.980778; -93.253417 (Stone Arch Bridge) 		Minnesota United States bridges
41 1975 Castillo de San Marcos 1695 St. Augustine
29°53′52″N 81°18′41″W / 29.89778°N 81.31139°W / 29.89778; -81.31139 (Castillo de San Marcos) 		Florida United States buildings
42 1975 Croton Water Supply System 1842 New York City
41°0′42.5″N 73°52′36.4″W / 41.011806°N 73.876778°W / 41.011806; -73.876778 (Croton Water Supply System) 		New York United States water supply & control
43 1975 Folsom Hydroelectric Power System 1895 Folsom
38°40′46.6″N 121°10′37.2″W / 38.679611°N 121.177000°W / 38.679611; -121.177000 (Folsom Hydroelectric Power System) 		California United States power generation
44 1975 Granite Railway 1826 Quincy
42°14′44.6″N 71°2′9″W / 42.245722°N 71.03583°W / 42.245722; -71.03583 (Granite Railway) 		Massachusetts United States roads & rails
45 1975 Hoosac Tunnel 1875 Berkshire County
42°40′31.1″N 73°2′45.1″W / 42.675306°N 73.045861°W / 42.675306; -73.045861 (Hoosac Tunnel) 		Massachusetts United States tunnels
46 1975 Lawrence Experiment Station 1886 Lawrence
42°41′53.8″N 71°9′55.7″W / 42.698278°N 71.165472°W / 42.698278; -71.165472 (Lawrence Experiment Station) 		Massachusetts United States research & educational
47 1975 Marlette Lake Water System 1873 to 1887 Virginia City
39°13′9.5″N 119°47′20.1″W / 39.219306°N 119.788917°W / 39.219306; -119.788917 (Marlette Lake Water System) 		Nevada United States water supply & control
48 1975 Mount Washington Cog Railway 1869 Mount Washington
44°16′26″N 71°19′55″W / 44.27389°N 71.33194°W / 44.27389; -71.33194 (Mount Washington Cog Railway) 		New Hampshire United States roads & rails
49 1975 Smithfield Street Bridge 1883 Pittsburgh
40°26′5.4″N 80°0′7.7″W / 40.434833°N 80.002139°W / 40.434833; -80.002139 (Smithfield Street Bridge) 		Pennsylvania United States bridges
50 1975 Tunkhannock Viaduct 1915 Nicholson
41°37′34.2″N 75°46′34.4″W / 41.626167°N 75.776222°W / 41.626167; -75.776222 (Tunkhannock Viaduct) 		Pennsylvania United States bridges
51 1976 Crozet's Blue Ridge Tunnel 1858 Waynesboro
38°2′3.1″N 78°51′28.4″W / 38.034194°N 78.857889°W / 38.034194; -78.857889 (Crozet's Blue Ridge Tunnel) 		Virginia United States tunnels
52 1976 Cumbres and Toltec Scenic Railroad 1880 Chama to Antonito
36°59′42″N 106°17′51.1″W / 36.99500°N 106.297528°W / 36.99500; -106.297528 (Cumbres and Toltec Scenic Railroad) 		New Mexico and Colorado United States roads & rails
53 1976 Elephant Butte Dam 1916 Truth or Consequences
33°9′14.9″N 107°11′31.3″W / 33.154139°N 107.192028°W / 33.154139; -107.192028 (Elephant Butte Dam) 		New Mexico United States dams
54 1976 First Concrete Pavement 1893 Bellefontaine
40°21′37.5″N 83°45′33.6″W / 40.360417°N 83.759333°W / 40.360417; -83.759333 (First Concrete Pavement) 		Ohio United States roads & rails
55 1976 International Boundary Marker No. 1[3] 1855 Doña Ana County
31°47′2″N 106°31′47.1″W / 31.78389°N 106.529750°W / 31.78389; -106.529750 (International Boundary Marker No. 1) 		New Mexico United States surveys & maps
56 1976 King's Road 1766 to 1775 New Smyrna
29°38′23.4″N 81°16′50.3″W / 29.639833°N 81.280639°W / 29.639833; -81.280639 (King's Road) 		Florida United States roads & rails
57 1976 National Road 1811–1839 Cumberland to Vandalia
39°57′38.7″N 82°27′2″W / 39.960750°N 82.45056°W / 39.960750; -82.45056 (National Road) 		Maryland to Illinois United States roads & rails
58 1977 Charlestown Naval Dry Dock 1833 Boston
42°22′23.7″N 71°3′19.3″W / 42.373250°N 71.055361°W / 42.373250; -71.055361 (Charlestown Naval Dry Dock) 		Massachusetts United States water transportation
59 1977 City Plan of Savannah 1733 Savannah
32°4′32″N 81°5′31″W / 32.07556°N 81.09194°W / 32.07556; -81.09194 (City Plan of Savannah) 		Georgia United States surveys & maps
60 1977 Great Falls Raceway and Power System 1800 Paterson
40°54′55.1″N 74°10′52.1″W / 40.915306°N 74.181139°W / 40.915306; -74.181139 (Great Falls Raceway and Power System) 		New Jersey United States power generation
61 1977 First New York Subway 1904 New York City
40°42′45.3″N 74°0′24.2″W / 40.712583°N 74.006722°W / 40.712583; -74.006722 (First New York Subway) 		New York United States roads & rails
62 1977 Mason–Dixon line 1767 39°43′16.1″N 80°7′5.3″W / 39.721139°N 80.118139°W / 39.721139; -80.118139 (Mason–Dixon line) Maryland & Pennsylvania United States surveys & maps
63 1977 Minot's Ledge Lighthouse 1860 off Scituate
42°16′11″N 70°45′32.9″W / 42.26972°N 70.759139°W / 42.26972; -70.759139 (Minot's Ledge Lighthouse) 		Massachusetts United States water transportation
64 1977 Mullan Road 1862 Walla Walla
46°46′8.3″N 118°12′22.6″W / 46.768972°N 118.206278°W / 46.768972; -118.206278 (Mullan Road) 		Washington United States roads & rails
65 1977 Dry Dock No 1 Norfolk Naval Shipyard 1833 Portsmouth
36°49′14″N 76°17′35″W / 36.82056°N 76.29306°W / 36.82056; -76.29306 (Gosport Naval Dry Docks) 		Virginia United States water transportation
66 1977 Reversal of the Chicago River 1900 Chicago
41°42′18″N 87°56′2″W / 41.70500°N 87.93389°W / 41.70500; -87.93389 (Reversal of the Chicago River) 		Illinois United States water transportation
67 1977 Vulcan Street Plant 1882 Appleton
44°15′29.2″N 88°23′50.2″W / 44.258111°N 88.397278°W / 44.258111; -88.397278 (Vulcan Street Plant) 		Wisconsin United States power generation
68 1977 William E. Ward House 1876 Rye Brook
41°1′32.5″N 73°40′3.1″W / 41.025694°N 73.667528°W / 41.025694; -73.667528 (William E. Ward House) 		New York United States buildings
69 1978 Boston Subway 1897 Boston
42°21′23.8″N 71°3′43.6″W / 42.356611°N 71.062111°W / 42.356611; -71.062111 (Boston Subway) 		Massachusetts United States roads & rails
70 1978 Dunlap's Creek Bridge 1839 Brownsville
40°1′17.2″N 79°53′17.2″W / 40.021444°N 79.888111°W / 40.021444; -79.888111 (Dunlap's Creek Bridge) 		Pennsylvania United States bridges
71 1978 Hudson and Manhattan Railroad Tunnel 1908 Jersey City to New York City
40°43′56.7″N 74°1′11.6″W / 40.732417°N 74.019889°W / 40.732417; -74.019889 (Hudson and Manhattan Railroad Tunnel) 		New Jersey & New York United States tunnels
72 1978 Newark International Airport 1928 Newark
40°41′22.2″N 74°10′28.2″W / 40.689500°N 74.174500°W / 40.689500; -74.174500 (Newark International Airport) 		New Jersey United States aviation
73 1978 United States Military Academy 1813 West Point
41°23′34.8″N 73°57′28.8″W / 41.393000°N 73.958000°W / 41.393000; -73.958000 (United States Military Academy) 		New York United States research & educational
74 1979 Cleveland Hopkins Airport 1925 Cleveland
41°24′45″N 81°50′53″W / 41.41250°N 81.84806°W / 41.41250; -81.84806 (Cleveland Hopkins Airport) 		Ohio United States aviation
75 1979 Fink Deck Truss Bridge 1870 Lynchburg
37°26′24.3″N 79°9′56″W / 37.440083°N 79.16556°W / 37.440083; -79.16556 (Fink Deck Truss Bridge) 		Virginia United States bridges
76 1979 Fink Through Truss Bridge 1858 Hamden
40°36′14.3″N 74°54′8.1″W / 40.603972°N 74.902250°W / 40.603972; -74.902250 (Fink Through Truss Bridge) 		New Jersey United States bridges
77 1979 Iron Bridge 1779 Ironbridge
52°37′38.4″N 2°29′7.6″W / 52.627333°N 2.485444°W / 52.627333; -2.485444 (Iron Bridge) 		West Midlands England bridges
78 1979 Moffat Tunnel 1928 Winter Park
39°53′37.5″N 105°42′41.3″W / 39.893750°N 105.711472°W / 39.893750; -105.711472 (Moffat Tunnel) 		Colorado United States tunnels
79 1979 Rockville Bridge 1902 Harrisburg
40°19′59.9″N 76°54′38.8″W / 40.333306°N 76.910778°W / 40.333306; -76.910778 (Rockville Bridge) 		Pennsylvania United States bridges
80 1980 Goodyear Airdock 1929 Akron
41°1′54.9″N 81°28′14.6″W / 41.031917°N 81.470722°W / 41.031917; -81.470722 (Goodyear Airdock) 		Ohio United States aviation
81 1980 Hydraulic-Inclined Plane System of the Morris Canal 1831 Waterloo Village
40°54′55.2″N 74°21′23.8″W / 40.915333°N 74.356611°W / 40.915333; -74.356611 (Hydraulic-Inclined Plane System of the Morris Canal) 		New Jersey United States water transportation
82 1981 Borden Base Line 1831 Hatfield
42°25′33.7″N 72°37′9″W / 42.426028°N 72.61917°W / 42.426028; -72.61917 (Borden Base Line) 		Massachusetts United States surveys & maps
83 1981 Chain of Rocks Water Purification Plant 1904 St. Louis
38°45′18.5″N 90°11′11.6″W / 38.755139°N 90.186556°W / 38.755139; -90.186556 (Chain of Rocks Water Purification Plant) 		Missouri United States water supply & control
84 1981 Charles River Basin Project 1910 Boston
42°22′3.8″N 71°4′12.8″W / 42.367722°N 71.070222°W / 42.367722; -71.070222 (Charles River Basin Project) 		Massachusetts United States water supply & control
85 1981 Cortland Street Drawbridge 1902 Chicago
41°55′1.1″N 87°39′51.4″W / 41.916972°N 87.664278°W / 41.916972; -87.664278 (Cortland Street Drawbridge) 		Illinois United States bridges
86 1981 George Washington Bridge 1931 Fort Lee to New York City
40°51′6.1″N 73°57′9.7″W / 40.851694°N 73.952694°W / 40.851694; -73.952694 (George Washington Bridge) 		New Jersey & New York United States bridges
87 1981 Louisville Water Works 1875 to 1896 Louisville
38°16′50″N 85°42′4.3″W / 38.28056°N 85.701194°W / 38.28056; -85.701194 (Louisville Water Works) 		Kentucky United States water supply & control
88 1981 Montgomery Bell's Tunnel 1818 Cheatham County
36°8′48.5″N 87°7′19.3″W / 36.146806°N 87.122028°W / 36.146806; -87.122028 (Montgomery Bell's Tunnel) 		Tennessee United States tunnels
89 1981 Snoqualmie Falls Cavity Generating Station 1899 Snoqualmie
47°32′39.5″N 121°50′29.3″W / 47.544306°N 121.841472°W / 47.544306; -121.841472 (Snoqualmie Falls Cavity Generating Station) 		Washington United States power generation
90 1981 Union Station 1894 St. Louis
38°37′41.2″N 90°12′28.8″W / 38.628111°N 90.208000°W / 38.628111; -90.208000 (Union Station) 		Missouri United States roads & rails
91 1981 Washington Monument 1885 Washington
38°53′22.1″N 77°2′6.9″W / 38.889472°N 77.035250°W / 38.889472; -77.035250 (Washington Monument) 		District of Columbia United States buildings
92 1981 Whipple Truss Bridge 1855 Schenectady
42°49′5.2″N 73°55′27″W / 42.818111°N 73.92417°W / 42.818111; -73.92417 (Whipple Truss Bridge) 		New York United States bridges
93 1982 Carrollton Viaduct 1829 Baltimore
39°16′31.5″N 76°39′18″W / 39.275417°N 76.65500°W / 39.275417; -76.65500 (Carrollton Viaduct) 		Maryland United States bridges
94 1982 Detroit-Windsor Tunnel 1930 Detroit
42°19′28″N 83°2′25.4″W / 42.32444°N 83.040389°W / 42.32444; -83.040389 (Detroit-Windsor Tunnel) 		Michigan United States tunnels
95 1982 Eads South Pass Navigation Works 1879 Port Eads
28°59′50″N 89°8′38″W / 28.99722°N 89.14389°W / 28.99722; -89.14389 (Eads South Pass Navigation Works) 		Louisiana United States water transportation
96 1982 Holland Tunnel 1927 Jersey City to New York City
40°43′38.9″N 74°1′16″W / 40.727472°N 74.02111°W / 40.727472; -74.02111 (Holland Tunnel) 		New Jersey & New York United States tunnels
97 1982 John A. Roebling Suspension Bridge 1866 Cincinnati
39°5′34.8″N 84°30′35.6″W / 39.093000°N 84.509889°W / 39.093000; -84.509889 (John A. Roebling Suspension Bridge) 		Ohio United States bridges
98 1982 Kinzua Railway Viaduct 1882 McKean County
41°45′47.3″N 78°35′21.1″W / 41.763139°N 78.589194°W / 41.763139; -78.589194 (Kinzua Railway Viaduct) 		Pennsylvania United States bridges
99 1982 Rogue River Bridge 1931 Gold Beach
42°25′40.5″N 124°24′47.5″W / 42.427917°N 124.413194°W / 42.427917; -124.413194 (Rogue River Bridge) 		Oregon United States bridges
100 1982 Second Street Bridge 1886 Allegan
42°31′32.7″N 85°50′54.6″W / 42.525750°N 85.848500°W / 42.525750; -85.848500 (Second Street Bridge) 		Michigan United States bridges
101 1982 Watertown Arsenal 1859 Watertown
42°21′44″N 71°9′58″W / 42.36222°N 71.16611°W / 42.36222; -71.16611 (Watertown Arsenal) 		Massachusetts United States research & educational
102 1983 Atlantic City Convention Hall 1929 Atlantic City
39°21′18″N 74°26′19.1″W / 39.35500°N 74.438639°W / 39.35500; -74.438639 (Atlantic City Convention Hall) 		New Jersey United States buildings
103 1983 Bailey Island Bridge 1928 Harpswell
43°44′57.1″N 69°59′19.3″W / 43.749194°N 69.988694°W / 43.749194; -69.988694 (Bailey Island Bridge) 		Maine United States bridges
104 1983 Blenheim Bridge 1855 North Blenheim
42°28′18.4″N 74°26′29.4″W / 42.471778°N 74.441500°W / 42.471778; -74.441500 (Blenheim Bridge) 		New York United States bridges
105 1983 Iron Building of the U.S. Army Arsenal 1859 Watervliet
42°43′5.9″N 73°42′14.5″W / 42.718306°N 73.704028°W / 42.718306; -73.704028 (Iron Building of the U.S. Army Arsenal) 		New York United States buildings
106 1983 Ohio Canal System 1848 Akron
40°52′39.2″N 81°35′1.4″W / 40.877556°N 81.583722°W / 40.877556; -81.583722 (Ohio Canal System) 		Ohio United States water transportation
107 1983 Peavey–Haglin Experimental Concrete Grain Elevator 1900 St. Louis Park
44°56′32.7″N 93°20′42.8″W / 44.942417°N 93.345222°W / 44.942417; -93.345222 (Peavey–Haglin Experimental Concrete Grain Elevator) 		Minnesota United States buildings
108 1983 Sault Ste. Marie Hydroelectric Complex 1902 Sault Ste. Marie
46°29′50.8″N 84°19′55.7″W / 46.497444°N 84.332139°W / 46.497444; -84.332139 (Sault Ste. Marie Hydroelectric Complex) 		Michigan United States power generation
109 1983 Zuiderzee Enclosure Dam 1927 to 1932 Zaandam
52°59′37.5″N 5°9′19.1″E / 52.993750°N 5.155306°E / 52.993750; 5.155306 (Zuiderzee Enclosure Dam) 		North Holland Netherlands water supply & control
110 1984 Columbia River Scenic Highway 1922 Portland
45°39′19.3″N 121°54′13.2″W / 45.655361°N 121.903667°W / 45.655361; -121.903667 (Columbia River Scenic Highway) 		Oregon United States roads & rails
111 1984 Columbia-Wrightsville Bridge 1930 Columbia
40°1′42.4″N 76°31′5.6″W / 40.028444°N 76.518222°W / 40.028444; -76.518222 (Columbia-Wrightsville Bridge) 		Pennsylvania United States bridges
112 1984 Golden Gate Bridge 1937 San Francisco
37°49′11.7″N 122°28′42.7″W / 37.819917°N 122.478528°W / 37.819917; -122.478528 (Golden Gate Bridge) 		California United States bridges
113 1984 Hoover Dam 1935 Boulder City
36°0′57.7″N 114°44′14.8″W / 36.016028°N 114.737444°W / 36.016028; -114.737444 (Hoover Dam) 		Nevada & Arizona United States dams
114 1984 Lowell Waterpower System 1821 Lowell
42°38′48.5″N 71°18′41.6″W / 42.646806°N 71.311556°W / 42.646806; -71.311556 (Lowell Waterpower System) 		Massachusetts United States power generation
115 1984 Panama Canal 1914 Colón to Panama City9°7′2.2″N 79°43′7.6″W / 9.117278°N 79.718778°W / 9.117278; -79.718778 (Panama Canal) Panama water transportation
116 1984 Rocky River Pumped Storage Hydro-Plant 1925 New Milford
41°34′49.7″N 73°26′13.2″W / 41.580472°N 73.437000°W / 41.580472; -73.437000 (Rocky River Pumped Storage Hydro-Plant) 		Connecticut United States power generation
117 1985 Bayonne Bridge 1931 Bayonne to Staten Island
40°38′29.8″N 74°8′31.6″W / 40.641611°N 74.142111°W / 40.641611; -74.142111 (Bayonne Bridge) 		New Jersey & New York United States bridges
118 1985 Beginning Point of the U.S. Public Land Survey 1785 Liverpool
40°38′19.7″N 80°31′8.4″W / 40.638806°N 80.519000°W / 40.638806; -80.519000 (Beginning Point of the U.S. Public Land Survey) 		Ohio United States surveys & maps
119 1985 Cape Cod Canal 1914 Barnstable County
41°45′51.1″N 70°34′6.3″W / 41.764194°N 70.568417°W / 41.764194; -70.568417 (Cape Cod Canal) 		Massachusetts United States water transportation
120 1985 Chesapeake and Delaware Canal 1828 (rebuilt 1927) New Castle
39°32′34″N 75°43′14″W / 39.54278°N 75.72056°W / 39.54278; -75.72056 (Chesapeake and Delaware Canal) 		Delaware United States water transportation
121 1985 Davis Island Lock and Dam 1885 Pittsburgh
40°29′35″N 80°3′56″W / 40.49306°N 80.06556°W / 40.49306; -80.06556 (Davis Island Lock and Dam) 		Pennsylvania United States water transportation
122 1985 Forth Railway Bridge 1890 North Queensferry to South Queensferry
56°0′1.5″N 3°23′19.4″W / 56.000417°N 3.388722°W / 56.000417; -3.388722 (Forth Railway Bridge) 		Scotland bridges
123 1985 Going-to-the-Sun Road 1932 Glacier National Park
48°41′42″N 113°49′1.2″W / 48.69500°N 113.817000°W / 48.69500; -113.817000 (Going-to-the-Sun Road) 		Montana United States roads & rails
124 1985 High Bridge 1877 Jessamine & Mercer Counties
37°49′1.7″N 84°43′12.4″W / 37.817139°N 84.720111°W / 37.817139; -84.720111 (High Bridge) 		Kentucky United States bridges
125 1985 Statue of Liberty 1886 New York Harbor
40°41′21.5″N 74°2′40.4″W / 40.689306°N 74.044556°W / 40.689306; -74.044556 (Statue of Liberty) 		New York[4] United States buildings
126 1986 White River Concrete Arch Bridge 1930 Cotter
36°16′2″N 92°32′39″W / 36.26722°N 92.54417°W / 36.26722; -92.54417 (White River Concrete Arch Bridge) 		Arkansas United States bridges
127 1986 Cranetown Triangulation Site 1817 Cedar Grove
40°49′43.9″N 74°13′27.1″W / 40.828861°N 74.224194°W / 40.828861; -74.224194 (Cranetown Triangulation Site) 		New Jersey United States surveys & maps
128 1986 Eiffel Tower 1889 Paris
48°51′30.2″N 2°17′40.2″E / 48.858389°N 2.294500°E / 48.858389; 2.294500 (Eiffel Tower) 		Île-de-France France buildings
129 1986 El Camino Real 1598-1800s Santa Fe and Mexico City
34°3′38.7″N 106°53′36.6″W / 34.060750°N 106.893500°W / 34.060750; -106.893500 (El Camino Real) 		New Mexico United States and Mexico roads & rails
130 1986 El Camino Real (The Royal Road) Eastern Branch from 16th century San Antonio
29°26′45.8″N 98°30′12.3″W / 29.446056°N 98.503417°W / 29.446056; -98.503417 (El Camino Real (The Royal Road) Eastern Branch) 		Texas United States roads & rails
131 1986 New Castle Ice Harbor 1803 New Castle
39°39′28″N 75°33′39″W / 39.65778°N 75.56083°W / 39.65778; -75.56083 (New Castle Ice Harbor) 		Delaware United States water transportation
132 1986 Norris Dam 1936 Knoxville
36°13′28″N 84°5′31.5″W / 36.22444°N 84.092083°W / 36.22444; -84.092083 (Norris Dam) 		Tennessee United States dams
133 1986 San Francisco–Oakland Bay Bridge 1937 San Francisco to Oakland
37°47′53.6″N 122°22′40.7″W / 37.798222°N 122.377972°W / 37.798222; -122.377972 (San Francisco–Oakland Bay Bridge) 		California United States bridges
134 1986 Sewall's Bridge 1761 (rebuilt 1934) York
43°8′10.2″N 70°39′38.3″W / 43.136167°N 70.660639°W / 43.136167; -70.660639 (Sewall's Bridge) 		Maine United States bridges
135 1986 Triborough Bridge Project 1936 New York City
40°47′26.6″N 73°55′33.2″W / 40.790722°N 73.925889°W / 40.790722; -73.925889 (Triborough Bridge Project) 		New York United States bridges
136 1986 U.S. Army Corps of Engineers Waterways Exp. Station 1929 Vicksburg
32°18′4.2″N 90°52′18″W / 32.301167°N 90.87167°W / 32.301167; -90.87167 (U.S. Army Corps of Engineers Waterways Exp. Station) 		Mississippi United States research & educational
137 1986 U.S. Capitol 1793, rebuilt 1863 Washington
38°53′23″N 77°0′33″W / 38.88972°N 77.00917°W / 38.88972; -77.00917 (U.S. Capitol) 		District of Columbia United States buildings
138 1987 Allegheny Portage Railroad 1834 Hollidaysburg
40°27′23″N 78°33′3.4″W / 40.45639°N 78.550944°W / 40.45639; -78.550944 (Allegheny Portage Railroad) 		Pennsylvania United States roads & rails
139 1987 Bonneville Dam, Columbia River System 1937 Bonneville
45°38′39.7″N 121°56′26.7″W / 45.644361°N 121.940750°W / 45.644361; -121.940750 (Bonneville Dam, Columbia River System) 		Oregon United States power generation
140 1987 Bridges of Keeseville 1843, 1878, 1888 Keeseville
44°30′13.2″N 73°28′57.3″W / 44.503667°N 73.482583°W / 44.503667; -73.482583 (Bridges of Keeseville) 		New York United States bridges
141 1987 Dismal Swamp Canal 1805 Chesapeake to South Mills
36°35′34.1″N 76°23′5.4″W / 36.592806°N 76.384833°W / 36.592806; -76.384833 (Dismal Swamp Canal) 		Virginia to North Carolina United States water transportation
142 1987 Houston Ship Channel 1837–present Houston
29°44′35.8″N 95°6′16.5″W / 29.743278°N 95.104583°W / 29.743278; -95.104583 (Houston Ship Channel) 		Texas United States water transportation
143 1987 Kamehameha V Post Office 1871 Honolulu
21°18′34.6″N 157°51′47.4″W / 21.309611°N 157.863167°W / 21.309611; -157.863167 (Kamehameha V Post Office) 		Hawaii United States buildings
144 1987 Frisco Bridge 1892 Memphis
35°7′43.6″N 90°4′34.7″W / 35.128778°N 90.076306°W / 35.128778; -90.076306 (Frisco Bridge) 		Tennessee & Arkansas United States bridges
145 1987 Quebec Bridge 1917 Quebec City
46°44′45.6″N 71°17′17.3″W / 46.746000°N 71.288139°W / 46.746000; -71.288139 (Quebec Bridge) 		Quebec Canada bridges
146 1988 Belle Fourche Dam 1911 Belle Fourche
44°43′51.3″N 103°40′36.8″W / 44.730917°N 103.676889°W / 44.730917; -103.676889 (Belle Fourche Dam) 		South Dakota United States dams
147 1988 École Nationale des Ponts et Chaussées 1747 Paris
48°51′20.9″N 2°19′49.9″E / 48.855806°N 2.330528°E / 48.855806; 2.330528 (École Nationale des Ponts et Chaussées) 		Île-de-France France research & educational
148 1988 Keokuk Hydro-Power System 1913 Keokuk
40°23′56.6″N 91°21′49″W / 40.399056°N 91.36361°W / 40.399056; -91.36361 (Keokuk Hydro-Power System) 		Iowa United States power generation
149 1988 Portion of the Pennsylvania Turnpike between the Irwin Interchange and Carlsie Interchange 1940/11964/1968 40°1′49.9″N 78°29′33.6″W / 40.030528°N 78.492667°W / 40.030528; -78.492667 (Pennsylvania Turnpike) Pennsylvania United States roads & rails
150 1988 River des Peres Sewerage & Drainage Works 1924 to 1931 St. Louis
38°39′42.3″N 90°18′33.9″W / 38.661750°N 90.309417°W / 38.661750; -90.309417 (River des Peres Sewerage & Drainage Works) 		Missouri United States water supply & control
151 1988 Sydney Harbour Bridge 1932 Sydney
33°51′8.1″S 151°12′38.6″E / 33.852250°S 151.210722°E / -33.852250; 151.210722 (Sydney Harbour Bridge) 		New South Wales Australia bridges
152 1989 Royal Colonial Boundary of 1665 1728–1819 Middlesboro
36°36′2.9″N 83°40′31.5″W / 36.600806°N 83.675417°W / 36.600806; -83.675417 (Royal Colonial Boundary of 1665) 		Kentucky United States surveys & maps
153 1989 Zhaozhou Bridge 605 AD Zhaoxian
37°43′12.9″N 114°45′47.7″E / 37.720250°N 114.763250°E / 37.720250; 114.763250 (Zhaozhou Bridge) 		Hebei China bridges
154 1990 Fort Peck Dam 1940 Fort Peck
48°0′10.1″N 106°24′58″W / 48.002806°N 106.41611°W / 48.002806; -106.41611 (Fort Peck Dam) 		Montana United States dams
155 1990 Maria Pia Bridge 1877 Oporto
41°8′23.4″N 8°35′49.6″W / 41.139833°N 8.597111°W / 41.139833; -8.597111 (Maria Pia Bridge) 		Norte Portugal bridges
156 1990 Salginatobel Bridge 1930 Grisons
46°58′54.4″N 9°43′5.1″E / 46.981778°N 9.718083°E / 46.981778; 9.718083 (Salginatobel Bridge) 		Graubünden Switzerland bridges
157 1991 Eddystone Lighthouse 1882 off Plymouth
50°11′2″N 4°16′5.1″W / 50.18389°N 4.268083°W / 50.18389; -4.268083 (Eddystone Lighthouse) 		England water transportation
158 1991 Fritz Engineering Laboratory 1910 Bethlehem
40°36′28.9″N 75°22′34.3″W / 40.608028°N 75.376194°W / 40.608028; -75.376194 (Fritz Engineering Laboratory) 		Pennsylvania United States research & educational
159 1991 St. Clair Tunnel 1891 Port Huron
42°57′32.4″N 82°25′22.2″W / 42.959000°N 82.422833°W / 42.959000; -82.422833 (St. Clair Tunnel) 		Michigan United States tunnels
160 1991 Thames Tunnel 1843 London
51°30′12.7″N 0°3′13.3″W / 51.503528°N 0.053694°W / 51.503528; -0.053694 (Thames Tunnel) 		England tunnels
161 1992 Acquedotto Traiano-Paolo 110 AD Rome
42°3′12.9″N 12°20′18.7″E / 42.053583°N 12.338528°E / 42.053583; 12.338528 (Acquedotto Traiano-Paolo) 		Lazio Italy water supply & control
162 1992 Bridges of Niagara 1849, 1855, 1883, 1898, 1941 Niagara Gorge
43°5′24.8″N 79°4′3.4″W / 43.090222°N 79.067611°W / 43.090222; -79.067611 (Niagara Falls Suspension Bridge) 		Ontario and New York Canada and United States bridges
163 1992 Duck Creek Aqueduct 1846 Metamora
39°26′46.1″N 85°7′48″W / 39.446139°N 85.13000°W / 39.446139; -85.13000 (Duck Creek Aqueduct) 		Indiana United States water supply & control
164 1992 Hohokam Canal System 600 - 1450 AD Maricopa County
33°26′43.8″N 111°48′56.2″W / 33.445500°N 111.815611°W / 33.445500; -111.815611 (Hohokam Canal System) 		Arizona United States water supply & control
165 1992 San Jacinto Monument 1939 Houston
29°44′59.5″N 95°4′50.6″W / 29.749861°N 95.080722°W / 29.749861; -95.080722 (San Jacinto Monument) 		Texas United States buildings
166 1993 Blimp Hangars 1942 Tustin
33°42′10.8″N 117°49′26.3″W / 33.703000°N 117.823972°W / 33.703000; -117.823972 (Blimp Hangars) 		California United States aviation
167 1993 Denison Dam 1943 Denison
33°49′52.6″N 96°34′16″W / 33.831278°N 96.57111°W / 33.831278; -96.57111 (Denison Dam) 		Texas & Oklahoma United States dams
168 1993 Hanford B Reactor 1944 Richland
46°37′49.1″N 119°38′50.3″W / 46.630306°N 119.647306°W / 46.630306; -119.647306 (Hanford B Reactor) 		Washington United States power generation
169 1993 Stevens Pass Railroad Tunnels & Switchback System 1900 Stevens Pass
47°44′52.4″N 121°7′26.3″W / 47.747889°N 121.123972°W / 47.747889; -121.123972 (Stevens Pass Railroad Tunnels & Switchback System) 		Washington United States tunnels
170 1994 Colorado River Aqueduct 1933–1941 Blythe
34°17′23.6″N 114°10′19.5″W / 34.289889°N 114.172083°W / 34.289889; -114.172083 (Colorado River Aqueduct) 		California United States water supply & control
171 1994 Kavanagh Building 1936 Buenos Aires
34°35′43.7″S 58°22′28.9″W / 34.595472°S 58.374694°W / -34.595472; -58.374694 (Kavanagh Building) 		Argentina buildings
172 1994 Missouri River Bridges 1926 Chamberlain
43°48′42.1″N 99°20′16.1″W / 43.811694°N 99.337806°W / 43.811694; -99.337806 (Missouri River Bridges) 		South Dakota United States bridges
173 1995 Red Hill Underground Fuel Storage Facility 1943 Honolulu
21°22′18″N 157°53′44″W / 21.37167°N 157.89556°W / 21.37167; -157.89556 (Red Hill Underground Fuel Storage Facility) 		Hawaii United States tunnels
174 1994 Viaducto del Malleco 1890 Malleco River
37°57′47″S 72°26′20″W / 37.96306°S 72.43889°W / -37.96306; -72.43889 (Viaducto del Malleco) 		Central Chile Chile bridges
175 1994 White Pass and Yukon Route 1900 Whitehorse, Yukon to Skagway, Alaska
59°37′28″N 135°8′18.3″W / 59.62444°N 135.138417°W / 59.62444; -135.138417 (White Pass and Yukon Route) 		Yukon Territory to Alaska Canada & United States roads & rails
176 1995 Alaska Highway 1942 Dawson Creek to Delta Junction
59°54′39.6″N 131°33′20.6″W / 59.911000°N 131.555722°W / 59.911000; -131.555722 (Alaska Highway) 		British Columbia to Alaska Canada & United States roads & rails
177 1995 Banaue Rice Terraces 100 BC Banaue
16°55′57.4″N 121°3′30.1″E / 16.932611°N 121.058361°E / 16.932611; 121.058361 (Banaue Rice Terraces) 		Ifugao Philippines water supply & control
178 1995 Acueducto de Queretaro 1738 Querétaro
20°35′48″N 100°22′20.6″W / 20.59667°N 100.372389°W / 20.59667; -100.372389 (Acueducto de Queretaro) 		Mexico water supply & control
179 1995 Victoria Falls Bridge 1905 Zambezi River
17°55′41.7″S 25°51′26.1″E / 17.928250°S 25.857250°E / -17.928250; 25.857250 (Victoria Falls Bridge) 		Zimbabwe & Zambia bridges
180 1996 Armour-Swift-Burlington Bridge 1912 Kansas City
39°7′0″N 94°34′47.5″W / 39.11667°N 94.579861°W / 39.11667; -94.579861 (Armour-Swift-Burlington Bridge) 		Missouri United States bridges
181 1996 Dublin-Belfast railway line 1839 Dublin to Belfast
53°43′0″N 6°20′15″W / 53.71667°N 6.33750°W / 53.71667; -6.33750 (Dublin-Belfast railway line) 		Ireland & Northern Ireland roads & rails
182 1996 Kentucky Dam 1944 Gilbertsville
37°0′46.4″N 88°16′10.1″W / 37.012889°N 88.269472°W / 37.012889; -88.269472 (Kentucky Dam) 		Kentucky United States dams
183 1996 Lake Moeris Quarry Road 2575-2137 BC Lake Moeris
29°37′24.2″N 30°38′40.4″E / 29.623389°N 30.644556°E / 29.623389; 30.644556 (Lake Moeris Quarry Road) 		Egypt roads & rails
184 1996 City Plan of Philadelphia 1682 Philadelphia
39°57′28.6″N 75°10′14.2″W / 39.957944°N 75.170611°W / 39.957944; -75.170611 (City Plan of Philadelphia) 		Pennsylvania United States surveys & maps
185 1996 San Antonio River Walk & Flood Control System 1929 to 1941 San Antonio
29°25′30.7″N 98°29′29.7″W / 29.425194°N 98.491583°W / 29.425194; -98.491583 (San Antonio River Walk & Flood Control System) 		Texas United States water control & supply
186 1997 Grand Coulee Dam 1941 Grand Coulee
47°57′23.8″N 118°58′51.6″W / 47.956611°N 118.981000°W / 47.956611; -118.981000 (Grand Coulee Dam) 		Washington United States dams
187 1997 Lake Washington Ship Canal & Hiram M. Chittenden Locks 1917 Seattle
47°39′55.7″N 122°23′49.6″W / 47.665472°N 122.397111°W / 47.665472; -122.397111 (Lake Washington Ship Canal & Hiram M. Chittenden Locks) 		Washington United States water transportation
188 1997 Navajo Bridge 1929 Page
36°49′3.4″N 111°37′52.3″W / 36.817611°N 111.631194°W / 36.817611; -111.631194 (Navajo Bridge) 		Arizona United States bridges
189 1997 North Island Main Trunk Railway 1885–1908 Auckland to Wellington
39°13′39.8″S 175°23′55.5″E / 39.227722°S 175.398750°E / -39.227722; 175.398750 (North Island Main Trunk Railway) 		North Island New Zealand roads & rails
190 1997 Northampton Street Bridge 1896 Easton to Phillipsburg
40°41′29.3″N 75°12′14.4″W / 40.691472°N 75.204000°W / 40.691472; -75.204000 (Northampton Street Bridge) 		Pennsylvania & New Jersey United States bridges
191 1997 Snowy Mountains Scheme 1974 Snowy Mountains
35°36′40.1″S 148°17′29.8″E / 35.611139°S 148.291611°E / -35.611139; 148.291611 (Snowy Mountains Scheme) 		New South Wales Australia power generation
192 1997 Texas Commerce Bank Building (formerly Gulf, now Chase) 1929 Houston
29°45′32″N 95°21′49.7″W / 29.75889°N 95.363806°W / 29.75889; -95.363806 (Texas Commerce Bank Building (formerly Gulf, now Chase)) 		Texas United States buildings
193 1997 Walnut Street Bridge 1890 Harrisburg
40°15′27.1″N 76°53′9.8″W / 40.257528°N 76.886056°W / 40.257528; -76.886056 (Walnut Street Bridge) 		Pennsylvania United States bridges
194 1998 Brooks AFB, Old Hangar 9 1918 San Antonio
29°20′38.5″N 98°26′38.9″W / 29.344028°N 98.444139°W / 29.344028; -98.444139 (Brooks AFB, Old Hangar 9) 		Texas United States aviation
195 1998 Canton Viaduct 1835 Canton
42°9′28.8″N 71°9′14.5″W / 42.158000°N 71.154028°W / 42.158000; -71.154028 (Canton Viaduct) 		Massachusetts United States bridges
196 1998 Göta Canal 1810 to 1832 Gothenburg
58°29′53.9″N 16°10′28.9″E / 58.498306°N 16.174694°E / 58.498306; 16.174694 (Göta Canal) 		Västra Götaland Sweden water transportation
197 1998 Moseley Wrought Iron Arch Bridge 1864 North Andover
42°40′8.6″N 71°7′21.3″W / 42.669056°N 71.122583°W / 42.669056; -71.122583 (Moseley Wrought Iron Arch Bridge) 		Massachusetts United States bridges
198 1998 Tehachapi Pass Railroad Line 1876 Kern County
35°12′3″N 118°32′13″W / 35.20083°N 118.53694°W / 35.20083; -118.53694 (Tehachapi Pass Railroad Line) 		California United States roads & rails
199 1999 Acueducto de Segovia 50 AD Segovia
40°56′52.7″N 4°7′4.3″W / 40.947972°N 4.117861°W / 40.947972; -4.117861 (Acueducto de Segovia) 		Castile and León Spain water supply & control
200 1999 Arroyo Seco Parkway 1940 Los Angeles
34°4′23″N 118°14′2″W / 34.07306°N 118.23389°W / 34.07306; -118.23389 (Arroyo Seco Parkway) 		California United States roads & rails
201 1999 Blue Ridge Parkway begun 1935 Shenandoah NP to Great Smokey Mountains NP
36°26′28.5″N 81°5′42.9″W / 36.441250°N 81.095250°W / 36.441250; -81.095250 (Blue Ridge Parkway) 		Virginia to North Carolina United States roads & rails
202 1999 Cape Hatteras Lighthouse 1870 Cape Hatteras
35°15′2″N 75°31′43.7″W / 35.25056°N 75.528806°W / 35.25056; -75.528806 (Cape Hatteras Lighthouse) 		North Carolina United States water transportation
203 1999 Maine Turnpike 1947 43°21′17.2″N 70°35′26.2″W / 43.354778°N 70.590611°W / 43.354778; -70.590611 (Maine Turnpike) Maine United States roads & rails
204 1999 McNeill Street Pumping Station 1887 Shreveport
32°31′3.8″N 93°45′25.9″W / 32.517722°N 93.757194°W / 32.517722; -93.757194 (McNeill Street Pumping Station) 		Louisiana United States water supply & control
205 2000 Cedar Falls Hydroelectric Project 1901 Seattle
47°25′9.2″N 121°46′54.4″W / 47.419222°N 121.781778°W / 47.419222; -121.781778 (Cedar Falls Hydroelectric Project) 		Washington United States power generation
206 2000 Forth and Clyde Canal and Union Canal 1790 55°56′18″N 4°9′18.8″W / 55.93833°N 4.155222°W / 55.93833; -4.155222 (Forth and Clyde Canal and Union Canal) Scotland water transportation
207 2000 Hagia Sophia 537 AD Istanbul
41°0′31.2″N 28°58′48.6″E / 41.008667°N 28.980167°E / 41.008667; 28.980167 (Hagia Sophia) 		Istanbul Turkey buildings
208 2000 Muskingum River Navigation System 1837 Zanesville
39°43′59.5″N 81°54′29.4″W / 39.733194°N 81.908167°W / 39.733194; -81.908167 (Muskingum River Navigation System) 		Ohio United States water transportation
209 2000 Seventh Street Improvement Arches 1909 St. Paul
44°57′23″N 93°4′38″W / 44.95639°N 93.07722°W / 44.95639; -93.07722 (Seventh Street Improvement Arches) 		Minnesota United States bridges
210 2000 West Baden Springs Hotel 1902 West Baden Springs
38°34′1.3″N 86°37′6.6″W / 38.567028°N 86.618500°W / 38.567028; -86.618500 (West Baden Springs Hotel) 		Indiana United States buildings
211 2001 Bunker Hill Covered Bridge 1895, rebuilt 1994 Claremont
35°43′17.5″N 81°6′54.8″W / 35.721528°N 81.115222°W / 35.721528; -81.115222 (Bunker Hill Covered Bridge) 		North Carolina United States bridges
212 2001 Galveston Seawall and Grade Raising 1904 (expanded through 1963) Galveston
29°18′9″N 94°46′27″W / 29.30250°N 94.77417°W / 29.30250; -94.77417 (Galveston Seawall and Grade Raising) 		Texas United States water supply & control
213 2001 Baltimore & Ohio Roundhouse & Shop Complex 1842 to 1850s Martinsburg
39°27′33″N 77°57′36″W / 39.45917°N 77.96000°W / 39.45917; -77.96000 (Baltimore & Ohio Roundhouse & Shop Complex) 		West Virginia United States buildings
214 2002 Conwy Suspension Bridge 1826 Conwy
53°16′49.7″N 3°49′25.6″W / 53.280472°N 3.823778°W / 53.280472; -3.823778 (Conwy Suspension Bridge) 		Conwy Wales bridges
215 2002 Conwy Tubular Bridge 1849 Conwy
53°16′49″N 3°49′25″W / 53.28028°N 3.82361°W / 53.28028; -3.82361 (Conwy Tubular Bridge) 		Conwy Wales bridges
216 2002 Dorton Arena 1952 Raleigh
35°47′38.4″N 78°42′37.3″W / 35.794000°N 78.710361°W / 35.794000; -78.710361 (Dorton Arena) 		North Carolina United States buildings
217 2002 East Maui Irrigation System 1876 to 1923 East Maui
20°52′0″N 156°13′0″W / 20.86667°N 156.21667°W / 20.86667; -156.21667 (East Maui Irrigation System) 		Hawaii United States water supply & control
218 2002 Five Stone Arch Bridges 1830 to 1866 Hillsborough
43°7′49″N 71°56′41.1″W / 43.13028°N 71.944750°W / 43.13028; -71.944750 (Five Stone Arch Bridges) 		New Hampshire United States bridges
219 2002 Louisville and Portland Canal Locks & Dam 1830, rebuilt 1962 Louisville
38°16′18.5″N 85°46′45.6″W / 38.271806°N 85.779333°W / 38.271806; -85.779333 (Louisville and Portland Canal Locks & Dam) 		Kentucky United States water transportation
220 2002 Marshall Building 1906 Milwaukee
43°2′0.9″N 87°54′31.2″W / 43.033583°N 87.908667°W / 43.033583; -87.908667 (Marshall Building) 		Wisconsin United States buildings
221 2002 Menai Suspension Bridge 1826 Anglesey
53°13′13.1″N 4°9′48.1″W / 53.220306°N 4.163361°W / 53.220306; -4.163361 (Menai Suspension Bridge) 		Wales bridges
222 2002 Old Cape Henry Light, 1792, replaced 1881 Virginia Beach
36°55′32.8″N 76°0′29.3″W / 36.925778°N 76.008139°W / 36.925778; -76.008139 (Old Cape Henry Light) 		Virginia United States water transportation
223 2002 Portland Head Light 1787 Cape Elizabeth
43°37′23.2″N 70°12′28.4″W / 43.623111°N 70.207889°W / 43.623111; -70.207889 (Portland Head Light) 		Maine United States water transportation
224 2002 Shannon Hydroelectric Scheme 1929 52°42′20″N 8°36′46″W / 52.70556°N 8.61278°W / 52.70556; -8.61278 (Shannon Hydroelectric Scheme) Ireland power generation
225 2002 Waldo-Hancock Suspension Bridge 1931 Bucksport
44°33′37.6″N 68°48′5.9″W / 44.560444°N 68.801639°W / 44.560444; -68.801639 (Waldo-Hancock Suspension Bridge) 		Maine United States bridges
226 2003 Horseshoe Curve 1854 Altoona
40°29′54″N 78°29′9.1″W / 40.49833°N 78.485861°W / 40.49833; -78.485861 (Horseshoe Curve) 		Pennsylvania United States roads & rails
227 2003 Suez Canal 1869 Port Said to Suez
30°42′18″N 32°20′39″E / 30.70500°N 32.34417°E / 30.70500; 32.34417 (Suez Canal) 		Egypt water transportation
228 2003 Tennessee State Capitol 1845 to 1877 Nashville
36°9′57.1″N 86°47′3.4″W / 36.165861°N 86.784278°W / 36.165861; -86.784278 (Tennessee State Capitol) 		Tennessee United States buildings
229 2004 Hwaseong Fortress 1796 Suwon
37°17′0″N 127°0′57.6″E / 37.28333°N 127.016000°E / 37.28333; 127.016000 (Hwaseong Fortress) 		Gyeonggi-do Republic of Korea buildings
230 2004 Mesa Verde Reservoirs 750 to 1180 AD Montezuma County
37°14′26.3″N 108°30′16.7″W / 37.240639°N 108.504639°W / 37.240639; -108.504639 (Mesa Verde Reservoirs) 		Colorado United States water supply & control
231 2004 Northern Pacific High Line Bridge No 64 1908 Valley City
46°56′18.9″N 97°59′26.9″W / 46.938583°N 97.990806°W / 46.938583; -97.990806 (Northern Pacific High Line Bridge No 64) 		North Dakota United States bridges
232 2004 Old Wisla Bridge Tczew
54°5′33.7″N 18°48′22.2″E / 54.092694°N 18.806167°E / 54.092694; 18.806167 (Old Wisla Bridge) 		Vistula River Poland bridges
233 2005 Great Western Railway Bristol Temple Meads Station 1838 51°37′16.2″N 1°21′26.8″W / 51.621167°N 1.357444°W / 51.621167; -1.357444 (Great Western Railway) England & Wales roads & rails
234 2005 Philadelphia City Hall 1901 Philadelphia
39°57′10.1″N 75°9′48.8″W / 39.952806°N 75.163556°W / 39.952806; -75.163556 (Philadelphia City Hall) 		Pennsylvania United States buildings
235 2005 Sweetwater Dam 1888 Spring Valley
32°41′29.8″N 117°0′29.2″W / 32.691611°N 117.008111°W / 32.691611; -117.008111 (Sweetwater Dam) 		California United States dams
236 2005 Stanley Hydraulics Laboratory at the University of Iowa established 1919 Iowa City
41°39′25.8″N 91°32′29″W / 41.657167°N 91.54139°W / 41.657167; -91.54139 (Stanley Hydraulics Laboratory at the University of Iowa) 		Iowa United States research & educational
237 2006 Machu Picchu 1460 AD 13°9′48″S 72°32′44″W / 13.16333°S 72.54556°W / -13.16333; -72.54556 (Machu Picchu) Peru urban development
238 2006 Portland Observatory 1807 Portland
43°39′55.4″N 70°14′53.7″W / 43.665389°N 70.248250°W / 43.665389; -70.248250 (Portland Observatory) 		Maine United States water transportation
239 2006 Tipon 1200 - 1534 AD 13°34′15″S 71°46′59″W / 13.57083°S 71.78306°W / -13.57083; -71.78306 (Tipon) Peru water supply & control
240 2007 Caledonian Canal 1822 Great Glen
57°6′44.9″N 4°44′18.8″W / 57.112472°N 4.738556°W / 57.112472; -4.738556 (Caledonian Canal) 		Scotland water transportation
241 2007 Craigellachie Bridge Moray 1814 Strathspey
57°29′28.8″N 3°11′38″W / 57.491333°N 3.19389°W / 57.491333; -3.19389 (Craigellachie Bridge Moray) 		Scotland bridges
242 2008 Choate Bridge 1764 Ipswich
42°40′46.1″N 70°50′13.6″W / 42.679472°N 70.837111°W / 42.679472; -70.837111 (Choate Bridge) 		Massachusetts United States bridges
243 2008 Goldfields Water Supply 1903 Kalgoorlie
31°57′36″S 116°10′16.7″E / 31.96000°S 116.171306°E / -31.96000; 116.171306 (Goldfields Water Supply) 		Western Australia Australia water supply & control
244 2008 Lacey V. Murrow Bridge and Mount Baker Ridge Tunnels 1940 King County
47°35′23.2″N 122°16′44.3″W / 47.589778°N 122.278972°W / 47.589778; -122.278972 (Lacey V. Murrow Bridge and Mount Baker Ridge Tunnels) 		Washington United States bridges
245 2008 Woodhead Dam Woodhead Dam 1897 Cape Town
33°58′38.2″S 18°24′7.9″E / 33.977278°S 18.402194°E / -33.977278; 18.402194 (Woodhead Dam) 		Western Cape South Africa dams
246 2009 Guayabo Ceremonial Center 300 BC - AD 1400 Turrialba
9°58′21.7″N 83°41′26.6″W / 9.972694°N 83.690722°W / 9.972694; -83.690722 (Guayabo Ceremonial Center) 		Turrialba Costa Rica civil engineering profession
247 2009 Vancouver's Mapping of the West Coast of North America 1791–1795 45°0′0″N 124°0′43″W / 45.00000°N 124.01194°W / 45.00000; -124.01194 (Vancouver's Mapping of the West Coast of North America) Canada, Mexico and United States surveys & maps
248 2009 Poughkeepsie-Highland Bridge 1886–1888 Poughkeepsie
41°42′38.5″N 73°56′41.1″W / 41.710694°N 73.944750°W / 41.710694; -73.944750 (Poughkeepsie-Highland Bridge) 		New York United States bridges
249 2009 Manhattan Bridge 1909 New York City
40°42′27″N 73°59′26.9″W / 40.70750°N 73.990806°W / 40.70750; -73.990806 (Manhattan Bridge) 		New York United States bridges
250 2009 Queensboro Bridge 1909 New York City
40°45′24.2″N 73°57′15.1″W / 40.756722°N 73.954194°W / 40.756722; -73.954194 (Queensboro Bridge) 		New York United States bridges
251 2009 Williamsburg Bridge 1903 New York City
40°42′49.2″N 73°58′20.5″W / 40.713667°N 73.972361°W / 40.713667; -73.972361 (Williamsburg Bridge) 		New York United States bridges
252 2010 Mackinac Bridge 1958 Straits of Mackinac
45°48′48.8″N 84°43′42″W / 45.813556°N 84.72833°W / 45.813556; -84.72833 (Mackinac Bridge) 		Michigan United States bridges
253 2010 Rensselaer Polytechnic Institute 1824 Troy
42°43′48″N 73°40′39″W / 42.73000°N 73.67750°W / 42.73000; -73.67750 (Rensselaer Polytechnic Institute) 		New York United States research & educational
254 2010 Thomas Viaduct Railroad Bridge[5] 1835 Elkridge and Relay
39°13′17.5″N 76°42′48.1″W / 39.221528°N 76.713361°W / 39.221528; -76.713361 (Thomas Viaduct Railroad Bridge) 		Maryland United States bridges
255 2011 Utica Memorial Auditorium 1959 Utica
43°6′17.9″N 75°14′0.5″W / 43.104972°N 75.233472°W / 43.104972; -75.233472 (Utica Memorial Auditorium) 		New York United States buildings
256 2011 Tacoma Narrows Bridges[6] 1940-1950 Tacoma
47°16′8″N 122°33′3″W / 47.26889°N 122.55083°W / 47.26889; -122.55083 (Tacoma Narrows Bridges) 		Washington United States bridges
257 2011 Flight of Five Locks 1915 Waterford
42°48′2.8″N 73°41′29.1″W / 42.800778°N 73.691417°W / 42.800778; -73.691417 (Flight of Five Locks) 		New York United States water transportation
258 2011 Petra 309 BC 30°19′43″N 35°26′31″E / 30.32861°N 35.44194°E / 30.32861; 35.44194 (Petra) Ma'an Governorate Jordan buildings
259 2012 Zion-Mount Carmel Tunnel and Highway 1930 Zion National Park
37°12′40.7″N 112°57′29.6″W / 37.211306°N 112.958222°W / 37.211306; -112.958222 (Zion-Mount Carmel Tunnel and Highway) 		Utah United States roads & rails
260 2012 Huey P. Long Bridge 1935 Jefferson Parish
29°56′38.8″N 90°10′7.6″W / 29.944111°N 90.168778°W / 29.944111; -90.168778 (Huey P. Long Bridge) 		Louisiana United States bridges
261 2012 Grand Central Terminal 1913 New York City
40°45′10.3″N 73°58′37.9″W / 40.752861°N 73.977194°W / 40.752861; -73.977194 (Grand Central Terminal) 		New York United States roads & rails
262 2013 Titan Clydebank crane 1907 Clydebank
55°53′50.5″N 4°24′31.2″W / 55.897361°N 4.408667°W / 55.897361; -4.408667 (Titan Clydebank crane) 		West Dunbartonshire Scotland buildings
263 2013 Waterford Bridges Troy-Waterford Bridge 1909 Troy and Waterford
42°47′19.3″N 73°40′25.8″W / 42.788694°N 73.673833°W / 42.788694; -73.673833 (Waterford Bridges) 		New York United States bridges
264 2013 Lake Pontchartrain Causeway 1956 Lake Pontchartrain
30°11′59.2″N 90°7′21.7″W / 30.199778°N 90.122694°W / 30.199778; -90.122694 (Lake Pontchartrain Causeway) 		Louisiana United States bridges
265 2014 The Dalles Dam 1957 Columbia River
45°36′50.3″N 121°8′3″W / 45.613972°N 121.13417°W / 45.613972; -121.13417 (The Dalles Dam) 		Oregon & Washington United States dams
266 2015 Gladesville Bridge 1964 Sydney
33°50′31.3″S 151°8′51.8″E / 33.842028°S 151.147722°E / -33.842028; 151.147722 (Gladesville Bridge) 		New South Wales Australia bridges
267 2016 Cape Agulhas Lighthouse 1848 L'Agulhas
34°49′45.7″S 20°0′32.4″E / 34.829361°S 20.009000°E / -34.829361; 20.009000 (Cape Agulhas Lighthouse) 		South Africa water transportation
268 2016 Arrowrock Dam 1912 Boise and Elmore
43°35′43″N 115°55′21.1″W / 43.59528°N 115.922528°W / 43.59528; -115.922528 (Arrowrock Dam) 		Idaho United States dams
269 2016 All-American Canal[7] 1940 Imperial County
32°52′59″N 114°27′54″W / 32.88306°N 114.46500°W / 32.88306; -114.46500 (All-American Canal) 		California United States water supply & control
270 2016 Canal du Midi[8] 1681 Toulouse to Étang de Thau
43°12′52.9″N 2°25′49.8″E / 43.214694°N 2.430500°E / 43.214694; 2.430500 (Canal du Midi) 		Occitania France water transportation
271 2016 Liverpool and Manchester Railway[9] 1830 Liverpool to Manchester
53°27′10.8″N 2°36′58.6″W / 53.453000°N 2.616278°W / 53.453000; -2.616278 (Liverpool & Manchester Railway) 		North West England England roads & rails
272 2017 Bonnet Carré Spillway 1931 St. Charles Parish
30°0′7.2″N 90°26′23.3″W / 30.002000°N 90.439806°W / 30.002000; -90.439806 (Bonnet Carré Spillway) 		Louisiana United States dams
273 2017 Duluth Aerial Ferry/Lift Bridge[10] 1905 Duluth
46°46′45.8″N 92°5′35.3″W / 46.779389°N 92.093139°W / 46.779389; -92.093139 (Duluth Aerial Ferry/Lift Bridge) 		Minnesota United States bridges
274 2017 Mississippi River Basin Model[11] 1966 Jackson
32°18′21.8″N 90°19′8.2″W / 32.306056°N 90.318944°W / 32.306056; -90.318944 (Mississippi River Basin Model) 		Mississippi United States research & educational
275 2017 Chaffey Brothers Irrigation Works[12] 1887 Mildura and Renmark
34°15′1.6″S 142°13′28.8″E / 34.250444°S 142.224667°E / -34.250444; 142.224667 (Chaffey Brothers Irrigation Works) 		Victoria and South Australia Australia water supply & control
276 2017 Qhapaq Ñan: The Great Inka Road System[13] 1000 BC - 1533 AD 13°13′0.3″S 72°23′5.2″W / 13.216750°S 72.384778°W / -13.216750; -72.384778 (Qhapaq Ñan: The Great Inka Road System) Colombia to Chile roads & rails
277 2017 Tunnel of Eupalinos[14] 520 BC Samos
37°41′40.6″N 26°55′48″E / 37.694611°N 26.93000°E / 37.694611; 26.93000 (Tunnel of Eupalinos) 		North Aegean Greece tunnels
278 2018 Augusta Canal and Industrial District 1845 Augusta
33°31′17.6″N 82°0′38.9″W / 33.521556°N 82.010806°W / 33.521556; -82.010806 (Augusta Canal and Industrial District) 		Georgia United States power generation
279 2018 Old River Station[15] 1907 Cincinnati
39°4′17″N 84°25′40″W / 39.07139°N 84.42778°W / 39.07139; -84.42778 (Old River Station) 		Ohio United States water supply & control
280 2018 Boundary Layer Wind Tunnel Laboratory[16] 1965 London
43°0′14″N 81°16′32.5″W / 43.00389°N 81.275694°W / 43.00389; -81.275694 (Boundary Layer Wind Tunnel Laboratory) 		Ontario Canada research & educational
281 2018 Institution of Civil Engineers[17] 1818 London
51°30′4″N 0°7′44.4″W / 51.50111°N 0.129000°W / 51.50111; -0.129000 (Institution of Civil Engineers) 		England research & educational
282 2018 Union Chain Bridge[18] 1820 Horncliffe to Fishwick
55°45′9.3″N 2°6′24.4″W / 55.752583°N 2.106778°W / 55.752583; -2.106778 (Union Chain Bridge) 		England to Scotland bridges
283 2019 Kaibab Trail Suspension Bridge[19] 1928 Grand Canyon
36°6′53.2″N 112°5′21.1″W / 36.114778°N 112.089194°W / 36.114778; -112.089194 (Kaibab Trail Suspension Bridge) 		Arizona United States bridges
284 2019 Union Pacific Railroad[20] 1868 Omaha westward
41°15′0.9″N 95°55′37.4″W / 41.250250°N 95.927056°W / 41.250250; -95.927056 (Union Pacific Railroad) 		Nebraska United States roads & rails
285 2019 Silver Bridge Collapse - Creation of National Inspection Standards[21] 1967 Point Pleasant
38°50′42″N 82°8′28″W / 38.84500°N 82.14111°W / 38.84500; -82.14111 (Silver Bridge Collapse - Creation of National Inspection Standards) 		West Virginia United States bridges
286 2020 NASA Vehicle Assembly Building[22] 1966 Titusville
28°35′11″N 80°39′5″W / 28.58639°N 80.65139°W / 28.58639; -80.65139 (NASA Vehicle Assembly Building) 		Florida United States buildings
287 2021 Main Avenue Bridge[23] 1939 Cleveland
41°29′55.2″N 81°42′18.5″W / 41.498667°N 81.705139°W / 41.498667; -81.705139 (Main Avenue Bridge) 		Ohio United States bridges
288 2021 Sydney Opera House[12] 1973 Sydney
33°51′24″S 151°12′55″E / 33.85667°S 151.21528°E / -33.85667; 151.21528 (Sydney Opera House) 		New South Wales Australia buildings
289 2022 David Thompson's Surveying and Mapping of the Northwest of North America[24] 1814 Canada & United States surveys & maps
290 2022 Portage Lake Bridge[25] 1959 Hancock and Houghton
47°7′25.9″N 88°34′26.7″W / 47.123861°N 88.574083°W / 47.123861; -88.574083 (Portage Lake Bridge) 		Michigan United States bridges
291 2022 Salmon Creek Dam[26] 1914 Juneau
58°20′30″N 134°24′12″W / 58.34167°N 134.40333°W / 58.34167; -134.40333 (Salmon Creek Dam) 		Alaska United States dams
292 2023 New Orleans Drainage System[27] 1900 New Orleans
29°59′12″N 90°7′28″W / 29.98667°N 90.12444°W / 29.98667; -90.12444 (New Orleans Drainage System) 		Louisiana United States water supply & control
293 2023 Crystal Springs Dam[28] 1890 San Mateo County
37°31′43″N 122°21′44″W / 37.52861°N 122.36222°W / 37.52861; -122.36222 (Crystal Springs Dam) 		California United States dams
294 2024 Morris Dam[29] Morris Dam 1934 Azusa
34°10′29″N 117°52′52″W / 34.17472°N 117.88111°W / 34.17472; -117.88111 (Morris Dam) 		California United States dams

See also

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References

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  1. ^ Walpole, Ben. "Meet the man who has been to 150 ASCE Historic Civil Engineering Landmarks". American Society of Civil Engineers. ASCE. Retrieved 30 November 2024.
  2. ^ Stephens, Odin L.; Mengak, Michael T.; Osborn, David; Miller, Karl V. (March 2005). "Using Milorganite to temporarily repel white-tailed deer from food plots" (PDF). Wildlife Management Series. WSFR. Archived from the original (PDF) on 2012-03-29.
  3. ^ "International Boundary Marker | ASCE". www.asce.org. Retrieved 2017-10-20.
  4. ^ The Statue of Liberty is on Liberty Island, federal property administered by the National Park Service, located within the territorial jurisdiction of the State of New York. A pact between New York and New Jersey, ratified by Congress in 1834, declared this issue.
  5. ^ "Thomas Viaduct Railroad Bridge | ASCE". www.asce.org. Retrieved 2021-12-07.
  6. ^ "Tacoma Narrows Bridges | ASCE". www.asce.org. Retrieved 2021-12-07.
  7. ^ Harding, Matt (20 December 2016). "Canal System Now Engineering Landmark". Yuma Sun. p. 1.
  8. ^ "Canal du Midi Designated as International Historic Civil Engineering Landmark". American Academy of Water Resources Engineers. 2016-08-30. Retrieved 2022-08-20.
  9. ^ Morris, Paula (2016-09-14). "Rainhill reaffirmed as the birthplace of the railway". St Helens Star. Retrieved 2022-08-20.
  10. ^ Lundy, John (2017-09-11). "Centenarian engineer, Aerial Lift Bridge share honors". Duluth News Tribune. Retrieved 2022-08-20.
  11. ^ "In Military Lingo, MRBM = NHCEL". Preservation in Mississippi. 2018-05-24. Retrieved 2022-08-20.
  12. ^ a b "Sydney Opera House | ASCE". Retrieved 2022-08-10.
  13. ^ "Peru: Qhapaq Ñan designated ASCE historic civil engineering landmark". Andina. 2017-08-11. Retrieved 2022-08-20.
  14. ^ "Ανακήρυξη του Ευπαλίνειου Όρυγματος ως Ιστορικού Τοπόσημου Τεχνολογίας Πολιτικού Μηχανικού" [Designation of Tunnel of Eupalinos as a Historical Civil Engineering Landmark]. National Technical University of Athens School of Civil Engineering (in Greek). 2017-10-29. Retrieved 2022-08-20.
  15. ^ "Old River Station | Cincinnati Section ASCE". Retrieved 2022-08-10.
  16. ^ "Boundary Layer Wind Tunnel, London, Ontario". Canadian Society for Civil Engineering. Retrieved 2020-08-20.
  17. ^ Booth, Kenneth (2018-10-29). "ASCE recognises ICE as historic civil engineering landmark". Building Design & Construction. Retrieved 2022-08-20.
  18. ^ Johnson, Phil (2020-07-25). "Union Chain Bridge gets international badge of honour to mark bicentenary". The Scotsman. Retrieved 2022-08-20.
  19. ^ "Kaibab Trail Suspension Bridge | ASCE AZ Section". Retrieved 2022-08-10.
  20. ^ "Union Pacific Railroad | csengineermag.com". Retrieved 2022-08-10.
  21. ^ "Silver Bridge Collapse - Creation of National Inspection Standards | HMdb.org". Retrieved 2022-08-10.
  22. ^ "NASA Vehicle Assembly Building | NASA". Retrieved 2022-08-10.
  23. ^ "Main Avenue Bridge | ASCE Sections". Retrieved 2022-08-10.
  24. ^ Gilbert, David R.; Bartlett, F. Michael; Bedford, Cole G. (2022). David Thompson's Surveying and Mapping of the Northwest of North America. CSCE Annual Conference. Whistler, British Columbia.
  25. ^ "Portage Lake Bridge | MTU". www.mtu.edu/news. Retrieved 2022-08-10.
  26. ^ Kuhn, Jonson (2022-09-10). "Salmon Creek Dam recognized as a National Historic Civil Engineering Landmark". Juneau Empire. Retrieved 2022-09-13.
  27. ^ "New Orleans drainage system recognized as Historic Civil Engineering Landmark". www.asce.org. 2023-05-23. Retrieved 2024-12-02.
  28. ^ "Crystal Springs Dam recognized as National Historic Civil Engineering Landmark". www.asce.org. 2023-12-06. Retrieved 2024-12-02.
  29. ^ "Morris Dam dedicated as National Historic Civil Engineering Landmark". www.asce.org. Retrieved 2024-10-18.
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