With some retaining wall projects you may have surface water that is difficult to divert from your wall. This water should be collected with surface drainage swales and drained laterally in order to disperse the water around the wall structure. This swale should include an impermeable layer of clay, asphalt, or concrete.
For more information on water management, check out sections 3.4 in the . (ref. BP, Chapter 3.4)
For more on construction of a typical swale, reference in the for further discussion on above wall considerations., or see
Allan Block is working to achieve our industry initiative of Zero Wall Failures. With our Best Practices Manual and experience in the industry we are trying to expand the knowledge base for the design of segmental retaining walls (SRW's) by communicating and educating the professionals in the industry. and keep an eye out for more industry Best Practice recommendations here.