Coastal Structures and Solutions to Coastal Disasters Joint Conference 2015
Scour Protection, Terminal Groin/Jetty Construction, and Beach Replenishment at Amtrak’s New Niantic River Bridge
Publication: Coastal Structures and Solutions to Coastal Disasters 2015: Resilient Coastal Communities
Abstract
In 2012 Amtrak replaced a 1907-era bascule bridge over the Niantic River at East Lyme and Waterford, Connecticut. The new bridge was parallel with and 58 feet south of the bridge it replaced. Its construction closer to Niantic Bay, an arm of Long Island Sound, displaced an existing recreational beach and boardwalk. Up to 27 feet of the existing beach width was impacted, with the greatest displacement occurring near the new bridge. This paper describes the wave environment and coastal processes at Niantic Bay, the design of scour protection for a railroad embankment retaining wall, the design of a restored beach and the design of a terminal groin/jetty at the mouth of the Niantic River.
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Information & Authors
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Published In
Coastal Structures and Solutions to Coastal Disasters 2015: Resilient Coastal Communities
Pages: 848 - 863
Editors: Louise Wallendorf, U.S. Naval Academy and Daniel T. Cox, Ph.D., Oregon State University
ISBN (Online): 978-0-7844-8030-4
Copyright
© 2017 American Society of Civil Engineers.
History
Published online: Jul 11, 2017
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