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2006•Unpublished venueRequires access

Design of Florida Avenue Bridge over the IHNC

Eric T Nelson

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Abstract

The 210 million dollar Florida Avenue Bridge project is being designed to provide reliable access between St. Bernard and Orleans parishes over the Inner Harbor Navigational Canal (IHNC) in New Orleans, Louisiana. The project includes a five-span high-level bridge over the IHNC with a 470-foot center span. Bridge type studies were completed to determine the most viable structure type. Both cast-in-place segmental concrete box girder and steel plate girder alternates were selected for final design, with this paper focusing on the design of the segmental concrete alternate. The superstructure consists of a variable depth twin-cell box girder that is supported by voided box column piers and steel HP piles. The bridge will be built with form travelers using the balanced cantilever method of construction.

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What this paper is about

The 210 million dollar Florida Avenue Bridge project is being designed to provide reliable access between St. Bernard and Orleans parishes over the Inner Harbor Navigational Canal (IHNC) in New Orleans, Louisiana. The project includes a five-span high-level bridge over the IHNC with a 470-foot center span. Bridge type studies were completed to determine the most viable structure type. Both cast-in-place segmental concrete box girder and steel plate girder alternates were selected for final design, with this paper focusing on the design of the segmental concrete alternate. The superstructure consists of a variable depth twin-cell box girder that is supported by voided box column piers and steel HP piles. The bridge will be built with form travelers using the balanced cantilever method of construction.

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Available abstract

The 210 million dollar Florida Avenue Bridge project is being designed to provide reliable access between St. Bernard and Orleans parishes over the Inner Harbor Navigational Canal (IHNC) in New Orleans, Louisiana. The project includes a five-span high-level bridge over the IHNC with a 470-foot center span. Bridge type studies were completed to determine the most viable structure type. Both cast-in-place segmental concrete box girder and steel plate girder alternates were selected for final design, with this paper focusing on the design of the segmental concrete alternate. The superstructure consists of a variable depth twin-cell box girder that is supported by voided box column piers and steel HP piles. The bridge will be built with form travelers using the balanced cantilever method of construction.

Key concepts: Bridge (graph theory), Box girder, Engineering, Structural engineering, Span (engineering), Column (typography), Cantilever, Beam bridge

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