New Hampshire Department of Transportation (NHDOT) · Standard Specifications for Road & Bridge Construction
Section 605 — UNDERDRAINS
New Hampshire Standard Specifications for Road & Bridge Construction, Section 605. Full text, cross-references and related pay items on BuildSpec.
SECTION 605 New Hampshire Department of Transportation Standard Specifications – 2016 6-18 SECTION 605 -- UNDERDRAINS Description 1.1 This work shall consist of furnishing (unless pipe is provided) and installing underdrains at the locations shown or ordered. Pipe, common structure excavation, support membrane, graded aggregate, sand cushion, and backfill where specified shall be included in this work. 1.1.1 Furnishing and installing underdrain flushing basins as shown on the plans or ordered shall also be includ ed in this work. 1.2 Aggregate underdrain shall consist of furnishing and…
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