52 / | HD | STATIC STRUCTURES (E.G., BUILDINGS) |
319 | DF | CAST IN SITU CONCRETE BARRIER WITH LATERALLY PROJECTING RIB-TYPE SUSTAINER {8} |
327 | DF | .~ Additional distinct coextensive section fixed to barrier or sustainer {5} |
331 | .~.~ Distinct means between base of sustainer and section |