and scope. The purpose of this manual is to discuss normal requirements for design of surface and subsurface drainage systems for military construction other than airfields and heliports at Army, Air Force and similar installations. Sound engineering practice should be followed when unusual or special requirements not covered by these instructions are encountered. 1–2. General investigations. An on-site investigation of the system site and tributary area is a prerequisite for study of drainage requirements. Information regarding capacity, elevations, and condition of existing drains will be obtained. Topography, size and shape of drainage area, and extent and type of development; profiles, cross sections, and roughness data on pertinent existing streams and watercourses; and location of possible ponding areas will be determined.
DesignationTM 5-820-4
EditionOct 1983
StatusSuperseded
Pages112
FunctionEngineering
CollectionRecent Archive
Public property (reproduction authorization on cover)