NM CID GS-8 Practice Questions - New Mexico CID GS-8 Earthmoving, Excavation And Ditching Examination Exam

Why must structural fill be placed in controlled lifts rather than dumped in one thick layer?

Thick, uncompacted dumps leave the lower portion of the layer under-densified Lifts are required only for landscaping mulch OSHA forbids any fill thicker than 2 inches A single thick dump always exceeds 100 percent Proctor

Correct Answer:

Thick, uncompacted dumps leave the lower portion of the layer under-densified

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