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The National Academies

NCHRP 25-25/Task 82 [Completed]

Permeable Shoulders with Stone Reservoirs
[ NCHRP 25-25 (Research for the AASHTO Standing Committee on the Environment) ]

  Project Data
Funds: $125,000
Research Agency: ICF International
Principal Investigator: David Hein (ARA)
Effective Date: 8/13/2012
Completion Date: 10/4/2013
Comments: Completed and report submitted to AASHTO SCOE

The objective of the research was to prepare a report evaluating the suitability of permeable pavements with stone reservoirs for shoulders from the perspectives of design, constructability, safety, maintenance, and longevity of the shoulder and the mainline.  A secondary objective was to develop a research plan to examine flow spreading, interception capacity, and hydraulics of the resulting runoff with respect to managing highway stormwater runoff and pavement drainage design.  The final report is posted here and a decision support tool is posted here.

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