NONDESTRUCTIVE EVALUATION FOR HISTORIC PRESERVATION

Comprehensive planning and budgeting for a historic preservation project cannot commence without a detailed survey of a building's existing conditions. Information gathered during the documentation search forms the basis but cannot supplant the need for field inspection.

Those who plan to conduct the field investigation should first understand the existing construction. The original drawings, specifications, and historic research provide important information, but they may be inaccurate due to changes—both during the initial construction and in later modifications.

GATESHEAD MILLENNIUM BRIDGE

Since the ancient Romans built the first span across the River Tyne between the towns of Gateshead and Newcastle in northeastern England, bridges have loomed large in the local landscape.

Newcastle's river skyline has become a veritable cacophony of bridges, forming vital transportation links supporting the local heavy industries of shipbuilding, coal mining, and iron and steel works. Now the newest piece in the illustrious collection, the Gateshead Millennium Bridge, is once again making history.

ELEGANT EFFICIENCY AT ZION CANYON

Out in the beautiful Utah desert, the U.S. National Park Service (NPS) is elegantly demonstrating how bringing the outside in and the inside out can enhance our appreciation of the built and natural environment.

The 7,600-square-foot (706-square meter) Zion Canyon Visitor and Transportation Center, in Springdale, Utah, is a showcase of efficiency and sustainability for the NPS.

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