Rewrite of the AASHTO Drainage Manual

The AASHTO Drainage Manual (ADM 2014) provides a template and baseline for the development of state DOT highway drainage design manuals. The ADM serves as the default standard in the absence of a state DOT drainage manual for federally funded projects. Since inception, the ADM has been written in terms so that any agency can adopt and implement with their specific design criteria reflecting their specific policies, saving significant time and resources. Since the original publication in the 1970s, many DOT drainage design manuals have been developed based on the information and cumulative experience represented by this document and its subsequent editions. It is a publication reflecting the best knowledge and experience of several generations of highway hydraulic engineers. NCHRP Project 20-07(417) evaluated various alternatives to improve the efficiency of the Technical Committee on Hydrology and Hydraulics (TCHH) in updating the ADM. The proposed reorganization suggested by NCHRP Project 20-07(417) will create smaller, more manageable publications that will permit faster implementation of research findings and emerging technology. The nimbler AASHTO drainage publications in the future will improve the TCHH’s timeliness in updating publications. The objective of this research is to produce a new edition of the AASHTO Drainage Manual, following the detailed outlines developed in NCHRP Project 20-07(417), which will create smaller, more manageable publications that will permit faster implementation of research findings and emerging technology. Accomplishment of this objective shall require the following tasks: (1) confirm changes identified in the revised outlines developed in NCHRP Project 20-07(417) and identify any additional deficiencies that should be updated in the new publications, such as aquatic organism passage through culverts, applying climate change, two-dimensional modeling, inlet design, and culvert and storm sewer inspection; (2) develop a work plan to evaluate the best approach to developing new publications of the AASHTO Drainage Manual and Highway Drainage Guidelines documents and propose a schedule and milestones for completion of the work; and (3) in accordance with the approved work plan, prepare draft and final publications of the new AASHTO Drainage Manual.

• Record URL:
  http://apps.trb.org/cmsfeed/TRBNetProjectDisplay.asp?ProjectID=5003
• Supplemental Notes:
  • Contract to performing organization has not yet been awarded.

Language

• English

Project

• Status: Proposed
• Funding: $600000
• Contract Numbers:

  Project 24-50

• Sponsor Organizations:

  National Cooperative Highway Research Program

  Transportation Research Board
  500 Fifth Street, NW
  Washington, DC  United States  20001

  American Association of State Highway and Transportation Officials (AASHTO)

  444 North Capitol Street, NW
  Washington, DC  United States  20001

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Project Managers:

  Harrigan, Edward

• Start Date: 20200520
• Expected Completion Date: 0
• Actual Completion Date: 0

Subject/Index Terms

• TRT Terms: Drainage; Manuals
• Identifier Terms: American Association of State Highway and Transportation Officials
• Subject Areas: Highways; Hydraulics and Hydrology;

Filing Info

• Accession Number: 01739664
• Record Type: Research project
• Source Agency: Transportation Research Board
• Contract Numbers: Project 24-50
• Files: TRB, RiP
• Created Date: May 18 2020 3:05PM