Resource
Technical Note 4: Chimney filter/drain design and construction considerations - Version 1
Embankment Dam Reference Toolbox
This technical note is intended to provide practical guidance for use by dam owners and engineers for the design and construction of chimney filter and drainage features for embankment dams, particularly small embankment dams. This technical note is not intended to be an all-inclusive guide for design of filter and drain systems. In many instances, the document directs readers to other references that provide more detailed information. In addition, an extensive list of references on the topic is provided at the end of this technical note. This document was prepared by URS Corporation, under contract to the Montana Department of Natural Resources and Conservation (DNRC). URS’ work was directed by John W. France, P.E., and the technical note was reviewed for Montana DNRC by Michele Lemieux, P.E.