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

  • Netherlands transport sector retirements to leave thousands of empty roles
    February 19, 2014
    The Netherlands’ transport sector is expected to see thousands of empty positions as the ageing of the population causes a large number of retirements, according to the Dutch benefits issuing agency UWV. The total number of jobs is expected to increase by 5,000 until 2018, but an additional 36,000 positions will become free each year from 2015 onwards which is 11,000 more per year than the levels of 2013. The increases are expected to be biggest when the national retail and construction industries improve i
    Read More
  • Certified safe: ARTBA president talks future highways and safety
    January 16, 2020
    What keeps Dave Bauer* up at night? David Arminas caught up with the head of ARTBA at his Washington D.C. office during daylight hours
    Read More
  • Highway 99 revisited
    March 6, 2024
    David Arminas recently returned to Seattle for an inside look at some of the features of the now-complete SR99 tunnel that was a World Highways key project report in November 2017.
    Read More
  • India rushing to improve its highway system
    February 9, 2012
    Despite the world economic slowdown, India still seems in a rush to improve its highway system as Patrick Smith reports. Later this year India will be seen by hundreds of millions worldwide when the country's capital New Delhi hosts its biggest event ever.
    Read More

Highlighted Content