Application Description:

Lagging walls systems are routinely used for supporting excavation in urban environments where property lines and roads prohibit sloped or benched construction. They are used to retain soil until permanent walls are constructed. Providing suitable drainage, especially in high water table situations, present a unique challenge to the design professional due to the restricted area between the excavation and structural wall.

J•DRAIN drainage composites are engineered to be installed between the lagging and structural wall to reduce hydrostatic pressure and minimize leaks while efficiently channeling the water away. The three dimensional core creates a high compressive strength and high flow capacity drainage channel and the fused filter fabric prevents soil intrusion into the flow channel. It also provides a suitable substrate for the application of shotcrete or structural concrete. Inefficient drainage of the backfill may result in premature failure.

Product Recommendation

Standard recommendations. Please contact a JDR representative for the product to meet specific requirements:

J•DRAIN 400/420
J•DRAIN 400/420
J•DRAIN 400XL/420XL
J•DRAIN 400XL/420XL
J•DRAIN SWD
J•DRAIN SWD
J•DRAIN ES 1100
J•DRAIN ES 1100
J•DRAIN ES 1600
J•DRAIN ES 1600

Product Brochure 

Please click on below brochure or data sheet for printable pdf: 

Division 7 Waterproofing: 
Division 2 Civil/Highway (AASHTO M 288):

CAD Details 

Lagging Wall (full coverage) v10 030: PDF CAD
Lagging Wall (chimneys) v10 031: PDF CAD



NES evaluated.

Report No. ESR-1901 

Visit Installation Instructions or Architectural Specifications & MSDS for more info.