The Leaning Towers of Wilmington, Delaware: Emergency Response and Retrofit of the I-495 Viaduct to Address Lateral Squeeze
On a sunny, summer afternoon last June, the project manager for AECOM's open-end bridge design contract with the Delaware Department of Transportation (DelDOT) received an...

The Alaskan Way Viaduct Project: An Example of Geologic and Geotechnical Earthquake Engineering Practice in the Pacific Northwest

Design of Isolated Structures
This chapter examines the design of isolated structures. Topics include governing design codes; design of isolated buildings; design of isolated bridges and viaducts; and issues related...

Transporting Hong Kong
In response to a mobile, rapidly growing population, Hong Kong's Kowloon-Canton Railway Corporation is constructing West Rail, a HK$51.7 billion (U.S.$6.7 billion), 30.5 km...

Response Analysis of Reinforced Concrete Frames in Railroad Viaducts Damaged by the Hyogo-Ken-Nanbu Earthquake

Speeding Across Spain
Spain is extending its high-speed rail system—the Alta Velocidad Española (AVE)—to include a line running from Madrid to Lleida, with stops in Guadalajara and Zaragoza. The line will extend...

Tight Squeeze
The Newark, New Jersey Route 21 Viaduct Replacement is a massive, $250 million highway improvement program being undertaken by the New Jersey Department of Transportation. Michael Baker...

Rebuilding a Railroad Bridge
The Peck Movable Bridge and Bridgeport Viaduct is a four-track crossing in Connecticut that serves three rail lines. The 1904 bridge had deteriorated, causing a kink that forced trains...

Bangkok Blockbuster
When completed, the 54-kilometer Bang Na-Bang Pli-Bang Pakong Expressway in Bangkok, Thailand, will be the longest elevated expressway in the world. The precast segmental method is being...

Rebuilding History
Deterioration of the second-oldest multiple-arch masonry viaduct in the country—in Canton, Mass.—threatened its ability to continue carrying Amtrak's Northeast Corridor trains,...

Cementing the Future
One of the most devastating effects of the Loma Prieta Earthquake that rocked northern California on Oct. 17, 1989 was the collapse of the elevated Cypress Freeway (Interstate 880) in...

Seismic Retrofit of Fourth Street & Riverside Viaducts with Micropiles

A Bridge Along the Same Lines
Engineers in Tennessee were recently charged with building a new viaduct in an old profile, while at the same time keeping headroom for the trains and keeping off the neighbors'...

NYCT - A Special Infrastructure Evaluation Project

Seismic in St. Louis
Following collapse of sections of the double-deck I-880 Cypress Viaduct in the 1989 Loma Prieta earthquake, the Missouri Department of Transportation initiated a seismic evaluation and...

Hawaii's Interbase Interstate
Connecting two major military installations, Hawaii's third Interstate highway (H-3) is the largest ($1 billion) HDOT project to date as well as the longest in time (planning...

Historical Considerations for New Jersey Viaduct
An Historical Bridge Alternatives Analysis report prepared for New Jersey Department of Transportation (NJDOT) for Route 1&9 S.B. viaduct in Newark, New Jersey evaluated the options...

Road to Recovery
The effect of the Loma Prieta earthquake on San Francisco's elevated viaduct system is still being felt more than four years later. Immediately after the quake, the entire...

Developing Retrofit Strategies for the China Basin Viaduct Foundations Using Non-linear, Hysteretic Analysis

Assessment and Testing of Column Lap Splices for the Santa Monica Viaduct Retrofit
This paper describes assessment and the full-scale test of a 3 ft. (914 mm) dia. column containing #11 (34.9 mm dia.) reinforcing steel lap-spliced in the critical region. The column modelled...

 

 

 

 

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