详情

原文传递 Highway Bridges in the United States: An Overview.

题名：	Highway Bridges in the United States: An Overview.
作者：	memmott, j.
关键词：	networks, barriers, passageways, highways, freeways, data bases, inventories, resources, maintenance, upgrading
摘要：	Bridges are an integral part of the U.S. highway network, providing links across natural barriers, passage over railroads and highways, and freeway connections. The Federal Highway Administration (FHWA) maintains a database of our nation's highway bridges--the National Bridge Inventory (NBI)--with detailed information on all public road bridges greater than 20 feet. This special report gives a brief synopsis of that inventory, including bridge condition and the resources spent for maintenance and upgrades. / Availability Note: Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA.
总页数：	u0814；6p
报告类型：	科技报告