New Hampshire Department of Transportation (NHDOT) · Standard Specifications for Road & Bridge Construction
Section 209 — GRANULAR BACKFILL
New Hampshire Standard Specifications for Road & Bridge Construction, Section 209. Full text, cross-references and related pay items on BuildSpec.
SECTION 209 New Hampshire Department of Transportation Standard Specifications – 2016 2-28 SECTION 209 -- GRANULAR BACKFILL Description 1.1 This work shall consist of furnishing and placing porous granular material at the locations shown on the plans or ordered. Materials 2.1 The material shall consist of stones, rock fragments, and fine hard durable particles resulting from the natural disintegration of rock. The material shall be free from harmful amounts of organic matter. The wear shall not exceed 60 percent. No more than 12 percent of the mat erial passing the No. 4 sieve shall pass the…
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