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https://nap.nationalacademies.org/catalog/27432/critical-issues-in-transportation-for-2024-and-beyond

Crushed Gravel for Shoulder Leveling 304.32

After the New Hampshire Department of Transportation’s resurfacing contracts are complete and accepted, gravel is placed to level the shoulder along the newly paved roadway sections. This material tends to ravel or wash out depending on factors that include the profile grade, amount of stormwater runoff, and the extent of vehicle off-tracking. Shoulder gravel material on the paved roadway presents a safety hazard and creates a maintenance issue for the NHDOT District workforce. Concerns that the current specification does not provide a final product that is well compacted and stays in place may be related to the material where other factors may include the site condition and/or placement method. The NHDOT Bureau of Highway Maintenance will establish test sections along a resurfacing project for the purpose of evaluating different gradations and compaction methods when placing shoulder gravel. The outcome of this project will be to recommend improvements to the Department’s specification 304.32, Crushed Gravel for Shoulder Leveling that improves performance of gravel used for shoulder leveling.

    Language

    • English

    Project

    • Status: Active
    • Funding: $110,000
    • Sponsor Organizations:

      New Hampshire Department of Transportation

      John O. Morton Building
      P.O. Box 483
      Concord, NH  United States  03302-0483
    • Managing Organizations:

      New Hampshire Department of Transportation

      John O. Morton Building
      P.O. Box 483
      Concord, NH  United States  03302-0483
    • Project Managers:

      Nash, Deirdre

    • Performing Organizations:

      New Hampshire Department of Transportation

      John O. Morton Building
      P.O. Box 483
      Concord, NH  United States  03302-0483
    • Principal Investigators:

      Belanger, Kevin

    • Start Date: 20210422
    • Expected Completion Date: 20221231
    • Actual Completion Date: 0
    • Source Data: https://www.nh.gov/dot/org/projectdevelopment/materials/research/projects/42372e.htm

    Subject/Index Terms

    Filing Info

    • Accession Number: 01771080
    • Record Type: Research project
    • Source Agency: New Hampshire Department of Transportation
    • Files: RIP, STATEDOT
    • Created Date: May 3 2021 9:51AM