2017-01-18_INSPECTION - M1992069

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B. Compaction shall be to the following minimum densities, reference ASTM D698 or AASHTO T99 Method A unless otherwise indicated. 1. Ground water barrier material: 95% 2. Pipe bedding. a. Compacted granular material: 80%(ASTM D4253,D4254) 3. Trench backfill. a. Within right-of-way and under areas of permanent surface improvements: Reference City of Greeley Street Construction Specifications, latest edition, Section 02595, Street Cut and Excavation Repair,Part 3.2. b. Under footings, foundations or structures: 100%. C. Seeded areas: 80%. d. Al other locations: 95%. e. Do not compact topsoil. 4. Where granular materials are used in lieu of cohesive soils reduce the above percentages by 15% to arrive at the relative density and ASTM D4253 and D4254 shall apply. C. Moisture Content 1. All compacted backfill shall be within 2% (+/-) of the optimum moisture content of the soil as determined by AASHTO T99 or ASTM D698. 2. Water shall be added to the material, or the material shall be harrowed, disced, bladed, or otherwise worked to insure a uniform moisture content, as specified. D. Moisture/density tests shall be performed at a depth of two feet (2) above the top of the pipe bedding and in two foot (2) increments up to the final grade, or as determined by the City. E. Moisture/density tests shall be performed at a minimum of 200 linear feet (200% as measured along the center line of the pipe,or as determined by the City. F. Water services shall have a minimum of one density test per service. G. Sanitary sewer services shall have a minimum of two density tests per service or at the City Inspector's discretion. H. Moisture/density tests in the vicinity of vaults, valve boxes, and manholes shall be Boyd Freeman Ditch Improvements 02320-10 Trenching,Backfilling and August 2005 Compacting