As designated by the American Society of Civil Engineers. For more information http://www.asce.org/PPLContentWide.aspx?id=9310
1. Acequias of San Antonio
2. End Of The Alaska Highway (ALCAN)
3. Allegheny Portage Railroad
4. Alvord Lake Bridge
5. Armour-Swift-Burlington (ASB) Railroad Bridge
6. Arroyo Seco Parkway
7. Ascutney Mill Dam
8. Boardwalk Hall
9. Bailey Island Bridge
10. Roundhouse Martinsburg Train Station
11. Bayonne Bridge
12. Belle Fourche Dam
13. Bethlehem Waterworks
14. Bidwell Bar Suspension Bridge
15. Old Blenheim Bridge
16. MCAS Tustin Blimp Hangar 2
17. Blue Ridge Parkway
18. Bollman Iron Truss Bridge
19. Bonneville Lock & Dam
20. Borden Base Line
21. Massachusetts Transportation Authority
22. Bridgeport Covered Bridge
23. Keeseville Stone Arch Bridge
24. Upper Bridge
25. Rainbow Bridge
26. Whirlpool Bridge
27. Brooklyn Bridge
28. Hangar 9
29. Buffalo Bill Dam
30. Bunker Hill Covered Bridge
31. Cabin John Aqueduct
32. Caledonian Canal
33. Chesapeake and Ohio Canal - Lock 10
34. Cape Cod Canal
35. Cape Hatteras Lighthouse
36. Carrollton Viaduct
37. Castillo De San Marcos National Monument
38. Union Pacific Railroad
39. Chain of Rocks Water Purification Plant
40. Charleston-Hamburg Railroad
41. Charles River Dam
42. Chesapeake & Delaware Canal
43. Jardine Water Purification Plant
44. Choate Bridge Pub
45. Historic Philadelphia Center
46. Historic Downtown Savannah
47. Cleveland Hopkins International Airport (CLE)
48. Colorado River Aqueduct
49. Columbia–Wrightsville Veterans Memorial Bridge
50. Historic Columbia River Hwy
51. Conwy Suspension Bridge
52. Cornish-Windsor Covered Bridge
53. Cortland Street Drawbridge
54. Craigellachie Bridge
55. Cranetown Triangulation Site
56. Croton Water Treatment Plant
57. Blue Ridge Tunnel
58. Cumbres & Toltec Scenic Railroad
59. Davis Island Lock & Dam
60. Denison Dam, Texas Side
61. Detroit-Windsor Tunnel
62. Dismal Swamp Canal
63. J.S. Dorton Arena
64. Druid Hill Park Lake Loop
65. Enterprise Dublin Connolly to Belfast Lanyon Place Station
66. Duck Creek Aqueduct
67. Durango-Silverton Narrow Gauge Branch of the Denver & Rio Grande Western Railroad
68. Eads Bridge
69. Port Eads Lighthouse
70. East Maui Irrigation System
71. Ecole des Ponts ParisTech
72. Lighthouse
73. Eiffel Tower
74. El Camino Real de los Tejas - Eastern Branch
75. Sabino y Lemitar Historic Marker on thee Camino Real
76. Elephant Butte Dam
77. Ellicot's Stone Historical Marker
78. Embudo, New Mexico Stream Gauging Station
79. ERIE CANAL SYSTEM
80. Fink Deck Truss Bridge
81. Fink Through Truss Bridge
82. Oldest Concrete Street in America
83. IRT Subway - City Hall (Abandoned)
84. First Owens River-Los Angeles Aqueduct
85. Forth Bridge
86. Old Stone Arch Bridge
87. Waterford Locks
88. Folsom Hydroelectric Power System
89. Fort Peck Dam Interpretive Center and Museum
90. Forth & Clyde Canal
91. Pennypack Bridge
92. Fritz Engineering Laboratory
93. Galveston Seawall
94. George Washington Bridge
95. Going-to-the-Sun Road
96. Golden Gate Bridge
97. Coolgardie Goldfields Water Supply Scheme
98. Goodyear Airdock
99. Göta Kanal
100. Grand Central Terminal
101. Grand Coulee Dam
102. Granite Railway
103. Paterson Great Falls National Historical Park
104. Bristol Temple Meads (BRI) to Paddington (PAD) Train
105. Monumento Nacional Guayabo
106. Gunnison Tunnel
107. Hagia Sophia
108. Hanford B-Reactor
109. High Bridge Park
110. Hohokam Canal System
111. Holland Tunnel
112. Hoosac Tunnel
113. Hoover Dam
114. Horseshoe Curve
115. Ship Channel Bridge
116. North River Tunnels
117. Bike Path Under the Huey P Long Bridge
118. Hwaseong Fortress
119. Morris Canal Plane 9 West
120. Stanley Hydraulics Laboratory
121. Banaue Rice Terraces Viewpoint
122. Ingalls Building
123. International Boundary and Water Commission
124. The Iron Bridge
125. Watervliet Arsenal
126. John A Roebling Suspension Bridge
127. Joining of the Rails - Transcontinental Railroad
128. Kamehameha V Post Office Building
129. Edificio Kavanagh
130. Kentucky Dam
131. keokuk dam
132. King's Road
133. Kinzua Railway Viaduct
134. Lacey V. Murrow Memorial Bridge
135. Mount Baker Ridge Tunnels
136. Lake Moeris Quarry Road
137. Hiram M. Chittenden Locks
138. Lake Washington Ship Canal
139. Lawrence Experiment Station
140. McAlpine Locks and Dam
141. Louisville Water Tower Park
142. Lowell National Historical Park
143. Machu Picchu
144. Mackinac Bridge
145. Maine Turnpike
146. Manhattan Bridge
147. Marlette Lake Water System
148. Marshall Building
149. Mason-Dixon Line (Maryland / Pennsylvania State Border)
150. McNeil Pumping Station
151. Menai Bridge
152. Miami Conservancy District Main Office
153. Middlesex Canal
154. Milwaukee Metropolitan Sewage District
155. Minot's Light
156. Lewis and Clark Memorial Bridge
157. Moffat Tunnel
158. Montgomery Bell's Tunnel
159. Memphis-Arkansas Bridge
160. Salt Lake Tabernacle
161. The Mount Washington Cog Railway
162. Mullan Road
163. Muskingum River, Zanesville, Lock 10 Pool
164. US 40 Monument
165. Navajo Bridge
166. Naval Drydocks
167. New Castle Ice Harbor
168. Newark Liberty International Airport (EWR)
169. Norris Dam Visitors Center
170. Wellington Railway Station
171. Free Bridge
172. Northern Pacific High Line Bridge No 64
173. Ohio Erie Canal Towpath
174. Cape Henry Lighthouse
175. Old Wisla Bridge
176. Panama Canal
177. Peavey-Haglin Concrete Grain Elevator
178. Pennsylvania Tpke & Gettyburg Tpke
179. Petra
180. Philadelphia City Hall
181. Philadelphia Municipal Water Supply
182. Beginning Point of The US Public Land Survey
183. Ponte de D. Maria Pia
184. Portland Head Light
185. Portland Observatory Museum
186. C&O Canal Towpath
187. FDR Mid-Hudson Bridge
188. Mesa Verde National Park
189. Pont de Québec
190. Ed Koch Queensboro Bridge
191. Red Hill Fuel Depot
192. Rensselaer Polytechnic Institute
193. Reversal of the Chicago River
194. River Des Peres
195. Rockville Bridge
196. Rocky River Pumped Storage Hydroelectric Plant
197. Delaware Canal State Park - Lock 21 / Durham Aqueduct
198. Patterson Bridge
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