Retaining Wall Type Selection

Retaining wall type selection decision matrix — 14 wall types across 7 structural categories (gravity, cantilever, MSE, sheet pile, soldier pile, in-situ soil nail, in-situ secant/diaphragm). Each record gives: practical height range, foundation requirements, backfill requirements, typical batter, relative cost index (1=lowest to 6=highest), construction speed, right-of-way requirements, aesthetics rating, seismic performance, drainage requirements, and typical applications. Sources: FHWA-NHI-07-071, AASHTO LRFD 9th Ed Sec 11, NAVFAC DM-7.2, Coduto Foundation Design 3rd Ed Ch.17, USACE EM 1110-2-2504.