Guidelines for Airport Sound Insulation Programs (2013) / Chapter Skim
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Pages 106-114
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From page 106... ...
106 The spirit and direction of the Nation are founded upon and reflected in its historic heritage. The historic and cultural foundations of the Nation should be preserved as a living part of our community life and development in order to give a sense of orientation to the American people.
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Treatment of Historic Structures 107 tion should take place during the start-up phase of the project before the design and installation of sound insulation treatments begin. 6.2 Definition of Historic The National Register Bulletin states that "[t]
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108 Guidelines for Airport Sound Insulation Programs If adverse effects are determined, establish measures required to mitigate them. As indicated in the process diagram shown in Figure 6.1, there are four distinct steps to the 106 process:7 1.
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From page 109... ...
Treatment of Historic Structures 109 6.3.1 Step 1: Initiation of the Section 106 Process and Identification of Participants The responsibility for the Section 106 process lies with the FAA.8 However, this responsibility can be (and usually is) passed to the airport sponsor as the grantee of federal funds.
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110 Guidelines for Airport Sound Insulation Programs documentation to the SHPO and, barring any objection in 30 days, proceeds with its undertaking. If the agency finds that historic properties are present, it proceeds to assess possible adverse effects.
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Treatment of Historic Structures 111 Programmatic Agreement. A PA is the preferred agreement document to use when there is a large and complex program that would require many individual requests for consultation of adverse effect and where making such requests will be inefficient.
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112 Guidelines for Airport Sound Insulation Programs preservation methods. Repairing also includes the limited replacement like-for-like -- or with compatible substitute material -- of extensively deteriorated or missing parts of features when there are surviving prototypes.
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From page 113... ...
Treatment of Historic Structures 113 Provision number 6 of the Standards for Rehabilitation states that when a historic feature needs to be replaced, "the new feature shall match the old in design, color, texture, and other visual qualities and, where possible, materials."18 Note that some regional FAA offices have relaxed the requirement that a 5-dB NLR be achieved in some cases where the historic integrity of a structure would be irreversibly compromised by replacement of windows or doors. PGL 12-09 does not mention whether an exception to the FAA's stated acoustical goals (i.e., minimum 5-dB NLR improvement and interior noise level of not greater than DNL 45 dB)
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From page 114... ...
114 Guidelines for Airport Sound Insulation Programs Designers and sponsors need to be aware of the impacts that energy codes presently have and will increasingly have on door and window products. As codes become increasingly stringent in their requirements for energy performance, finding window and door products that are appropriate to treat historic structures will become more difficult.
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