Att13_TypicalDetailReliefDrainWeep_0005.pdf

This is a technical specification drawing for a relief drain weep detail, presented as a construction document "not to scale." The drawing illustrates the cross-sectional design of a drain weep system used to relieve water pressure and prevent moisture accumulation in wall assemblies.

The detail specifies the following key components: a 2.5-inch Schedule 80 PVC pipe with 0.125-inch wide slots at a minimum density of 11 slots per linear foot; an end cap closure; encasement of the PVC pipe through the riprap using 4-inch Type 304 stainless steel pipe; a 4-inch exterior rodent guard (AgriDrain or approved equivalent); drain gravel extending a minimum of 2 feet into the drain system; and grout applied at the top of the headwall. The drain weep extends 2.5 inches downward from the grout line. This technical specification appears to be part of a larger construction or engineering contract document and provides precise dimensional and material requirements for proper installation of subsurface drainage systems in civil or infrastructure projects.