Michigan's ageing bridges

The US state of Michigan needs to invest in highway bridge repairs.
February 16, 2012 Read time: 1 min
The US state of Michigan needs to invest in highway bridge repairs. A report by 2770 Transportation for America says that in excess of 13% of the state's highway bridges are structurally deficient, compared with an average of 11.5% across the US. The problem is likely to increase according to the report as bridges age and come closer to their planned 50 year lifespan. Up to 1,400 bridges in Michigan are structurally deficient according to federal standards. In all Michigan has 11,000 road bridges and they are 41 years old on average. In the US, about 185,000 bridges are more than 50 years old and the number could double by 2030. Transportation for America says one in nine US bridges are in poor condition, while it would cost US$71 billion to improve the condition of its structurally deficient bridges.
Road Structures

For more information on companies in this article

Related Content

  • US bridges need repair, ARTBA reports
    March 26, 2021
    ARTBA reports that 220,000 US bridges need repair.
    Read More
  • The US needs bridge repairs
    February 15, 2022
    The US needs many of its bridges to be repaired.
    Read More
  • Concern over condition of US bridges
    July 5, 2019
    A new report from the American Road & Transportation Builders Association (ARTBA), highlighting the poor condition of many US bridges, is nothing less than a national scandal. According to ARTBA’s report, 47,052 US bridges are in poor condition, while 18,842 Interstate highway bridges have identifiable repair needs. The length of America’s structurally deficient bridges if placed end-to-end would span nearly 1,760km, ARTBA’s examination of federal government data shows. The Brooklyn (NY), Arlington M
    Read More
  • PPRS: action needed now on US bridges
    March 27, 2018
    More than 9% of major highway bridges in the US are “rated structurally deficient” and in need of “urgent attention”, according to Bud Wright, chief executive of AASHTO, the American Association of State Highway and Transportation Officials. Action is needed now. In a recent infrastructure report, AASHTO reported that the US has just over 614,000 road bridges, 25% of which are 50 or more years older. Also, around 56,000 - 9.1% - of them are now structurally deficient. This is a shocking and growing
    Read More

Highlighted Content