TRB Webinar: Designing Pavement Subsurface Drainage Using DRIP Software

October 23, 2018 02:00 PM - 04:00 PM U.S. Eastern
Cost (for your seat)
Professional Development Hours for this webinar
2.0 hour(s)
Continuing Education Hours for this webinar
AAE: 0.0 hour(s)
AICP: 0.0 hour(s)
CLE: 0.0 hour(s)

TRB will conduct a webinar on Tuesday, October 23, 2018 from 2:00 PM to 4:00 PM ET that explores how to use Drainage Requirements in Pavement (DRIP) software to design effective drainage systems for pavements. The absence of adequate drainage in pavements may lead to premature distress or failure of the pavement system, especially regarding load carrying capacity. The DRIP software, which can be downloaded online for free, may provide an objective way to calculate the time to drain and depth of flow of drainage layers. Presenters will describe samples of pavement failure due to lack of proper drainage, demonstrate the DRIP software, and discuss potential benefits of pavement drainage and maintenance.

This webinar was organized by the TRB Standing Committees on Subsurface Drainage and Geosynthetics.

Some registrants will need to pay $95 to attend this webinarSign into to view registration information.

Webinar Presenters

  • Mohamed Elfino, Virginia Department of Transportation (retired)
  • Gabriel Bazi, Lebanese American University
  • Clark Graves, University of Kentucky

Moderated by:  Affan Habib, Virginia Department of Transportation

Webinar Outline

  1. Importance of effective drainage in enhancing pavement performance
  2. Demonstration of DRIP software
  3. State DOT experience using drainage systems and DRIP software
  4. Question and answer session

The first 90 minutes of the webinar will be for presentations and the final 30 minutes will be reserved for audience questions. The Registered Continuing Education Program (RCEP) categorizes this webinar activity as relating to health, safety, and welfare including core technical.

Learning Objectives

At the end of this webinar, participants will be able to:

  • Discuss the DRIP software, its capabilities, and its potential benefits
  • Identify the source of water entering the pavement and potential damage due to water entrapment
  • Identify characteristics of a well-performing drainage system

 Professional Development Hour Information

A certificate for 2.0 Professional Development Hours (PDHs) will be provided to Professional Engineers (PEs) who register and attend the webinar as an individual. For groups, only the person that registers and attends the session will receive a PDH certificate. Certificates of Completion will be issued only to individuals who register for and attend the entire webinar session.

Individuals registered as Florida PEs are no longer required to email TRB with your license number to report your attendance. Instead, please use your certificate that TRB provides through as verification of your attendance to the Florida Board of Professional Engineers.

Please check with your licensing board to ensure that TRB webinar PDHs are approved by your board.

This webinar was developed in March 2018. TRB has met the standards and requirements of the Registered Continuing Education Program (RCEP). Credit earned on completion of this program will be reported to RCEP by TRB. Complaints about registered providers may be sent to RCEP, 1015 15th Street, NW, 8th Floor, Washington, DC 20005. Website:

Registration questions? Contact Reggie Gillum at