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Home Working with Section 106 ACHP Case Digest Fall 2003 Alabama: Construction of the I-10 Bridge, Mobile
Alabama: Construction of the I-10 Bridge, Mobile
Agency: Federal Highway Administration
To improve the Interstate 10 corridor between Mobile and Baldwin Counties in Alabama, the Federal Highway Administration (FHWA) plans to construct a six-to-eight lane cable-stayed suspension bridge over the Mobile River.
To allow tall cargo and passenger ships to continue using the bay, the bridges central span would be 190 feet highmaking it the second tallest bridge over a port in the country. Comparatively, the roadway would be 15 feet taller than both the Baytown Bridge in Houston, Texas, and the Sunshine Skyway Bridge in Tampa, Florida, and would be only 20 feet shorter than the Golden Gate Bridge in San Francisco, California. In addition, the bridges supporting pylons would be approximately 500 feet tallthe height of a 45-story building.
FHWA acknowledges that the size of the bridge will have a visual effect on the Mobile Central Business District, and, as required by Section 106 of the National Historic Preservation Act, will enter into a Memorandum of Agreement to address the projects anticipated adverse effects on historic properties.
The proposed bridgewhich will dominate the skyline and increase traffic to the waterfronthas important preservation implications for a number of Mobiles historic structures. FHWA has thus far determined that the Old Southern Market Building/Old City Hall National Historic Landmark would be adversely affected by the project. At least 25 other individual historic structures and two historic districts, however, will be in the vicinity of the proposed bridge, including the Dauphin Street and Church Street East Historic Districts, and Old Fort Conde, a reconstructed 18th-century French fort.
In August 2003, the ACHP notified Secretary of Transportation Norman Y. Mineta that it would participate in consultation on the project to resolve the proposed projects adverse effects. In addition, the National Trust for Historic Preservation and the Mobile Historic Development Commission have been granted consulting party status under the Section 106 process.
Recent reports indicate that FHWA will undertake a full Environmental Impact Statement on the proposed project. How this will affect Section 106 consultation will be determined.
Staff contact: Tom McCulloch
Posted May 27, 2004
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