KLB Construction Inc 11/20/2018 - Laserfiche WebLink

I 1 7-08.3 Construction Requirements 2 II43 7-08.3(2) Laying Pipe 5 Survey Line and Grade I 6 Section 7-08.3(2)A is deleted and replaced with the following: 7 8 (City of Everett GSP) 9 Surveys required to construct the sewer line such as alignment stakes, grade I 10 hubs, intermediate staking, etc, shall be provided by the Contractor from the main 11 control points as shown on the drawing. If a bid item for"Survey" is not listed in I 12 the Proposal, the Contractor shall consider this item to be incidental to the 13 contract. 14 15 The Contractor shall provide laser control equipment as approved by the Engineer I16 for setting pipe grades. 17 18 7-08.3(3) Backfilling Il19 Section 7-08.3(3) is supplemented with the following: 20 (******) 21 Backfilling shall be performed only after inspection and approval of the installed pipe. I22 Refer to City Standard Drawings 610 and 615 for typical trench section backfill and 23 compaction requirements. 24 I25 If native material is not suitable for use as backfill, "Gravel Borrow"conforming to Section 26 9-03.14(1) of these Special Provisions shall be used, as required by the Engineer, for 27 trench backfill. Where trench sections are defined in the drawings, the materials called I28 for shall be used. Gravel borrow shall not be used in lieu of the materials specified in 29 the drawings unless specifically approved by the Engineer. 30 I31 If the native material is unsuitable at the foundation level, as determined by the Engineer, 32 excavation shall continue to the depth required by the Engineer. The unsuitable 33 foundation material shall be replaced with "Quarry Rock", as described in section 9-13.8 34 of these special provisions, compacted firmly into the subgrade soils. After placement I35 of "Quarry Rock", the upper surface shall be compacted to minimize exposed jagged 36 edges across the over excavated area. A construction geotextile meeting the 37 specification requirements for separation as provided in table 3 of Section 9-33.2(1) P38 Standard Specifications shall be placed over the top of all "Quarry Rock" prior to 39 placement of pipe bedding. The unsuitable material shall be disposed of by hauling to 40 a waste site obtained and provided by the Contractor in accordance with Section 2- '1 41 03.3(7)C of the Standard Specifications. Stockpiling of unsuitable material on the project 42 site will not be allowed. 43 I44 If there is an excess of backfill material obtained from trench excavation at one location 45 on the project, it shall be used at other locations on the project or disposed of as at an 46 approved disposal site. The cost of transporting the excess backfill material shall be I47 considered incidental to the project. 48 49 Extra excavation in lieu of constructing shoring is not permitted. IWEST MARINE VIEW DRIVE UTILITIES PAGE 96 OF 117 August 2018 WORK ORDER#3588 SPECIAL PROVISIONS I