Illinois Department of Transportation (IDOT) · Standard Specifications for Road and Bridge Construction
Section 284 — GABIONS AND SLOPE MATTRESS
Illinois Standard Specifications for Road and Bridge Construction, Section 284. Full text, cross-references and related pay items on BuildSpec.
Art. 283.03 Gabions and Slope Mattress 136 The aggregate lift shall be a minimum of 12 in. (300 mm) thick and placed to the lines and grades as shown on the plans, or as directed by the Engineer. The placement of the aggregate shall begin at the lower elevation and proceed up the slope in such manner to construct a reasonably well graded mass of stone free from objectionable pockets of small stones and clusters of large stones. Arranging of stones may be required to the extent necessary, either mechanically or by hand, to obtain a well graded distribution of stone sizes and grade lines.…
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