Drainage Requirement In Pavements (DRIP)

Version 2.0 now available to download![10/27/2014]

PDF DRIP Microcomputer Program User's Guide (PDF) [10/24/2014]

DRIP is a Windows base microcomputer program, created by the Federal Highway Administration and Applied Research Associates,
to perform hydraulic design computations for the subsurface drainage analysis of pavements. Features of DRIP include Roadway
Geometry Calculations, Sieve Analysis Calculations, Inflow Calculations, Permeable Base Design, Separator Layer Design, and
Edgedrain Design. Graphing of grain size distributions and sensitivity analysis plot provide engineers with a visual picture to aid in
decision making.


The DRIP software is provided *as is* and the user of the software assumes all responsibilities for its use and associated results.