Laserfiche WebLink
I <br /> CITY OF EVERETT SPECIAL PROVISIONS <br /> Pipe zone backfill includes material placed a minimum of 6-inches below the <br /> bottom of pipe up to a minimum of 12-inches above the top of pipe as shown <br /> on COE Standard Drawing No. 615. <br /> Supplement 7-09.1(1) by adding the following: <br /> 7-09.1(1)F Earthquake Joint System <br /> As required on the Plans and in these Specifications, provide a ductile iron <br /> system within 35th Street between Federal Avenue and Lombard Avenue that <br /> delivers up to five degree pipe joint deflection, three degree casting joint <br /> deflection, eight degree combined assembly deflection and +1- 2.4 inches of <br /> longitudinal expansion or contraction from midpoint. <br /> Supplement 7-09.1 as follows: <br /> 7-09.1(2) Submittals <br /> (******) <br /> Provide submittal showing ERDI pipe manufacturer's recommended fitting placement <br /> for ERDI pipe system in accordance with the Plans and these Special Provisions. <br /> Note also whether Earthquake System piping either fully open, fully closed, or midpoint <br /> position in accordance with design of the Earthquake System piping manufacturer. <br /> Provide Type 2 Working Drawings for all materials and Standard Plans. <br /> 7-09.2 Materials <br /> Substitute the following for the corresponding material in the material list in 7-09.2: <br /> Ductile Iron Pipe (non-earthquake resistant) 9-30.1(1) Special Provisions <br /> Polyethylene Encasement 9.30.1(2) Special Provisions <br /> Ductile Iron Pipe (earthquake resistant) 9-30.1(3) Special Provisions <br /> Fittings 9-30.2 Special Provisions <br /> Restrained Joints 9-30.2(6) Special Provisions <br /> Bolted, Sleeve—Type Couplings 9-30.2(7) Special Provisions <br /> for Plain End Pipe <br /> Aggregates: <br /> Pipe Zone Backfill 9-03.22 Special Provisions <br /> Controlled Density Fill 2.09.3(1)E Special Provisions <br /> 7-09.3 Construction Requirements <br /> 7-09.3(5) Grade and Alignment <br /> Revise the first sentence of the third paragraph in 7-09.3(5) to read as follows: <br /> Provide minimum cover from the final surface grade to the top of the pipe of 36- <br /> inches for water mains less than 12-inches in diameter and 48-inches for water <br /> mains 12-inches or greater in diameter. Provide 60-inches as the maximum depth <br /> from the final surface grade to the top of all water main pipes. Adhere to both <br /> minimum and maximum depths from finish grades unless Plans indicate <br /> otherwise. <br /> Supplement 7-09.3(5) by adding the following: <br /> Install Earthquake System piping either fully open, fully closed, or midpoint <br /> position in accordance with design of the Earthquake System piping manufacturer. <br /> 7-09.3(7) Trench Excavation <br /> Revise the second paragraph in 7-09.3(7) to read as follows: <br /> Excavate bell holes to the extent necessary to permit accurate Work in making <br /> and inspecting the joints. Keep the banks of the trenches as nearly vertical as soil <br /> conditions will permit, and where required to control trench width or to protect <br /> adjacent Structures, sheet and brace the trench. Provide trench widths to 1 foot <br /> Water Main Replacement S Division 7—STORM, SEWER,WATER January 29, 2018 <br /> WO No.—UP3664 SP—146 , <br />