CADD Adds Safety to the Ryan
Computer aided design and drafting (CADD) was used to plan safety improvements for the Dan Ryan Viaduct, a two mile expressway in Chicago. Some 17 accidents per day took place along the...

Infrastructure
Repairs and Inspection
Rehabilitation of a structure in general requires considerations of unique methods of inspection and repair. Since the structures have to remain in service while the repairs are done,...

Spanning Urban Obstacles
Extension of Pittsburgh's Crosstown Expressway is a � mile portion of a massive $500 million urban highway now under construction. The extension is a complex of five roadways...

Viaduct
This concrete box girder viaduct, an Award of Merit in the 1984 Outstanding Civil Engineering Achievement competition, helps complete a seven mile gap in the Blue Ridge Parkway in North...

Denny Creek: The Toughest Bridge Washington State Ever Built
The story of how highway planners and engineers in Washington State's Department of Transportation were stopped from building a highway and viaduct through a pristine wilderness...

 

 

 

 

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