Displaying results 21 of 40 - 256
| Date Sort ascending | Image | Innovation | City | State | Country |
|---|---|---|---|---|---|
| 1943 | 
|
Denison Dam | Denison | TX | USA |
| 1942 | 
|
Alaska Highway | Delta Junction | AK | USA |
| 1941 | 
|
Grand Coulee Dam | Grand Coulee | WA | USA |
| 1940s | 
|
Tacoma Narrows Bridges | Tacoma | WA | USA |
| 1940 | 
|
Pennsylvania Turnpike (Old Section) | Harrisburg | PA | USA |
| 1940 | 
|
Fort Peck Dam | Fort Peck | MT | USA |
| 1940 | 
|
Lacey V. Murrow Bridge and Mount Baker Ridge Tunnels | King County | WA | USA |
| 1940 | 
|
Arroyo Seco Parkway | Los Angelos | CA | USA |
| 1939 | 
|
San Jacinto Monument | Houston | TX | USA |
| 1939 | 
|
Dunlap's Creek Bridge | Brownsville | PA | USA |
| 1938 | 
|
Bonneville Dam, Columbia River System | Portland | OR | USA |
| 1937 | 
|
Golden Gate Bridge | Mill Valley | CA | USA |
| 1937 | 
|
San Francisco - Oakland Bay Bridge | Oakland | CA | USA |
| 1936 | 
|
Kavanagh Building | Buenos Aires | Argentina | |
| 1936 | 
|
Norris Dam | Knoxville | TN | USA |
| 1936 | 
|
Triborough Bridge Project | New York | NY | USA |
| 1935-1937 | 
|
Blue Ridge Parkway | Blue Ridge Mountains | VA | USA |
| 1935 | 
|
Hoover Dam | Boulder City | AZ | USA |
| 1935 | 
|
Huey P. Long Bridge | Bridge City, LA 70094 | LA | USA |
| 1933-1941 | 
|
Colorado River Aqueduct | CA | USA |
