New uses for old bridges

Article Abstract:

The provisions of the Intermodal Surface Transportation Efficiency Act of 1991 allow historic preservation which includes restoration of old bridges. The strengthening and widening the old structures are not financially practical since construction of new bridges are more cost effective. However, instead of demolishing these defunct bridges, the provisions dictate that they are to be restored to maintain their historical relevance. Such bridges will be rehabilitated for other uses. Some historic bridges include the Walnut Street Bridge, Stone Arch Bridge and the Keller Memorial Bridge.

Laws, regulations and rules, Remodeling and renovation, Historic bridges

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A new identity

Article Abstract:

The Shelby Street Bridge in Nashville designed was a time-tested element, such as the metal trusses and concrete T beams, and a daring, one-of-a-kind concrete truss is facing from an identity crisis. Efforts are being made to repair and relocate steel trusses, replacing deteriorating approach spans, and thus serving a necessary function and also is a jewel in the cityscape of Nashville.

General services

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Safeguarding Bixby Bridge

Article Abstract:

The strategy for a seismic retrofit of the historic Bixby Bridge in Big Sur, California is presented. Topics addressed include computer modelling of the bridge's seismic vulnerability, retrofit designs that are visually unobstrusive, and techniques and materials used to strengthen the structure.

Statistical Data Included, Methods, California, Transportation policy, Earthquake engineering, Big Sur, California

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