c*****g
发帖数: 21627 | 1 【 以下文字转载自 Military 讨论区 】
发信人: dunkin (America Runs on Dunkin), 信区: Military
标 题: infomation of I-5 - Skagit River Bridge,collapsed today
发信站: BBS 未名空间站 (Thu May 23 23:26:36 2013, 美东)
http://bridgehunter.com/wa/skagit/4794A0000000/
Overview
Through truss bridge over Skagit River on I-5 in Mount Vernon
Location
Skagit County, Washington
Status
One span collapsed May 23, 2013
History
Built 1955. Collapsed May 23, 2013.
Design
Warren through truss
Dimensions
Length of largest span: 160.1 ft.
Total length: 1,111.9 ft.
Deck width: 56.1 ft.
Vertical clearance above deck: 15.3 ft.
Approximate latitude, longitude
+48.44477, -122.34086 (decimal degrees)
48°26'41" N, 122°20'27" W (degrees°minutes'seconds")
Approximate UTM coordinates
10/548744/5365946 (zone/easting/northing)
USGS topographic map
Mount Vernon
Inventory number
BH 34493 (Bridgehunter.com ID)
Inspection (as of 08/2010)
Deck condition rating: Satisfactory (6 out of 9)
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Appraisal: Functionally obsolete
Sufficiency rating: 57.4 (out of 100)
Average daily traffic (as of 2010)
70,925 | b*******n
发帖数: 8420 | 2 现在美国制造业日趋衰落，几十年前完成的大规模基建工程没有更新维护，这种事情以
后会越来越多 |
|
