Maintenance Issues

As you’ll learn, maintenance and repair issues, from re-tensioning to crew training, vary widely by system design. Let our Lead States Team’s experience guide you through the maze of considerations. Click on a link below to learn more.

Below are links to some States' information on their own background with Cable Median Barrier

North Carolina Information

Washington Information

Ohio Information

Texas Information

FHWA Information

Other States' Information

 

 


North Carolina Information

General Information

 

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Washington Information

Report

Foilo/Handout

Video

Cable Cutting Demostration

 

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Ohio Information

General Information

  • Maintenance Issues drove choice for High Tension cable system

  • On un-socketed system, concrete came out of the ground and laid in the median for two and a half months because of frozen ground

  • 5 to 7 hits per mile per year

  • 2 to 5 days to repair from notification (depends on severity)

  • Have mowing concerns (some)

  • Have snow removal concerns (many)

  • Contractor repairs with no parts contracts

 

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Texas Information

General Information

  • Approximately 40 minutes to repair each hit

  • An average of 10 posts are taken out per hit

  • Installing mow strips, and mow strip is costing more than cable barrier itself

  • Mow strip placement is left up to each district

  • In one district all maintenance goes out to contract

  • Repairs are completed within one day

  • Will check tension in maintenance sections

  • Each maintenance section is supplied with a tension meter

  • Systems have not lost a lot of tension

 

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FHWA Information

General Information

  • Many State DOT’s were unable to identify across median crash locations

  • Information FHWA Knows

    Ø Many cross-median crashes occur on medians over 30’ wide

    Ø Median encroachments are likely to increase with higher traffic volumes

    Ø Cross-over crashes are severe

    Ø Median barriers can significantly reduce cross over crashes

    Ø Barrier selection and placement are critical for optimal performance

  • Information FHWA is Working on

    Ø What median width/ADT combinations result in cost-effective warrants?

    Ø How should crash history be considered?

    Ø How will cable, metal-beam or concrete median barriers perform when struck by a vehicle coming up a slope into the barrier?

    Ø When will new warrants be adopted by AASHTO?

 

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Other States' Information

  • Under Construction...

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