Specifications include, but are not limited to: The Contractor will be responsible for supplying and installing granite curb as outlined by NHDOT specifications and directed by the Town. Contractor will perform all trenching required, set granite curbing, and grout joints thereof at a minimum. Additional work may include concrete backfill/securing if requested, but this cost will NOT affect the bid award. • TRENCH: The trench for the granite curbing shall be mechanically excavated to a depth of 24 inches and a width of 18 inches. The finish grade of the vertical curbing shall be 7 inches above the final surface, unless directed otherwise. The trench shall be evenly graded, and additional gravel shall be placed if necessary to maintain a uniform depth and where existing materials are unsuitable. All voids shall be filled, and all high points or large stones removed. • SETTING CURBSTONE: Curbing shall be laid on gravel pack with intermittent voids underneath to receive concrete backfill. Each piece of curbing shall be completely and evenly supported for the length of the stone. Adjacent stone shall match as close as possible to the previous stone and be set within 1/4 inch from the end. The alignment shall be approved by the Town prior to placement of concrete. • CURB RESET This work includes resetting used granite curbing similarly to setting new curbstone. Granite will be supplied by the Town. • CONCRETE BACKFILL: If needed the Town may request the Contractor backfill curbing with concrete. The Town will plan do this with its own forces but would like contractor to bid price per yard if need be. The Contractor would be responsible for ordering, scheduling, and placing concrete.
