Top 10 Construction Achievements of The 20th Century
This article is adapted from information provided by CONEXPO-CON/AGG '99, which bills itself as the largest construction, aggregates, and ready mixed concrete industries trade show in the Western Hemisphere. The exposition took place March 23 to 27, 1999, in Las Vegas, Nev. The show is owned by the Construction Industry Manufacturers Association (CIMA), the National Aggregates Association, and the National Ready Mixed Concrete Association. The 1999 show was managed by CIMA and the International Concrete and Aggregates Group and was co-sponsored by the National Stone Association and the Associated General Contractors of America.
According to CONEXPO-CON/AGG '99, the top 10 construction achievements of the 20th century are:
Golden Gate Bridge
Dwight D. Eisenhower System of Interstate and Defense Highways.
Empire State Building.
Sydney Opera House.
Aswan High Dam.
World Trade Center.
Chek Lap Kok Airport in Hong Kong.
"The Top 10 program was established to teach people how construction has played a critical role in advancing our society. These 10 contributions have positively influenced the quality of life we enjoy today," said exposition co-chairman Bruno Benna.
"This collection bears witness to world-class design, engineering, construction, and technologies about which prior generations could only imagine," said Robert J. Fien, exposition co-chairman.
At Public Roads, we noted that transportation-related facilities are well-represented, recognizing both the importance of transportation projects to the construction industries and the significance of transportation to our economic productivity and quality of life.
The top 10 achievements were selected by poll from 132 projects - including buildings and structures, roads and highways, bridges, tunnels, dams and waterways, commercial centers, and transportation facilities - selected by an international panel of industry executives and editors. Selection criteria on which the top 10 were chosen was:
A strong impact or benefit to humanity.
A recognized quality of work.
A substantial economic impact on the local economy. A recognized overall value for community or region.
Professional recognition on local, regional, national, or international levels.
Use of innovation and application of new technology.
Impact on/sensitivity to the environment.
Influence on future projects.
These projects represent more than just concrete, iron, and steel. Two of the projects were built during the Great Depression when workers earned $4 a day. Other projects united a nation, brought together different cultures, or simply provided a gift to the senses.