Granite Construction Company 5/24/2017

i Two or three pair loop detector lead-in cable shall be installed where shown in the wiring schedule in the plans. Belden 1037A and 1055A cables are a pre- approved source. Other cables may be submitted for approval consistent with the following specifications: Multi pair loop detector lead-in cable shall consist of two or three individually twisted and shielded pairs of#16 AWG stranded copper wire, ' surrounded by an outer jacket of polyvinyl chloride (PVC). Each pair shall also contain a stranded copper drain wire and shall be individually shielded with an aluminum polyester foil shield. 8-20.3 Construction Requirements Section 8-20.3 is supplemented with the following: Induction Loop Vehicle Detectors Section 8-20.3(14)C is supplemented with the following: ' Induction loops shall be constructed as detailed in City of Everett Drawing Nos. 802, 802A, 806, and Section 8-20.3(14)C of the Standard Specifications with the following modifications: 1) The loop locations shall be marked on the pavement by the contractor and approved by the engineer prior to sawcutting. At no point shall any of the sawcuts pass closer than 1' to any utility cover. 2) Loop detector sealant shall be on the QPL and also be approved by the ' Engineer. 3) Rope is not required. 4) Loops shall not be installed in rainy weather or at temperatures below 400. ' 5) Loops shall be placed in the sawcut in a clockwise direction. 6) The loop sealant shall be applied in accordance with the manufacturer's recommendations. ' 7) Loop wire shall be a minimum size of No. 14 AWG stranded copper, Class B, with chemically cross linked polyethylene type RHH-RHW insulation rated for a minimum of 600 volts. 8) The area around the conduit stub-out shall be patched with hot mix asphalt concrete if it is greater than 2" in width. 9) The sawcuts shall be of uniform depth and any sharp edges, abrasions or ridges shall be removed prior to placing the wire. 10)The sawcut depth shall be a minimum of 3W and shall provide a minimum of 2" cover above the loop wires. 11)The sawcut width shall be a minimum of 1/4" for the loop and 3/8" for the ' home run. 12)The sawcut shall be cleaned out with a high pressure water stream and then dried with compressed air prior to placing the wire. 13)All splices between the loop wire and the loop lead-in cable shall be soldered and utilize a splice kit in conformance with Standard Plan 806A, B and C. 14)When the roadway is to be overlaid as a part of the project, the loops shall be installed prior to the final overlay. HOT MIX ASPHALT OVERLAY 2017 PAGE 4 OF 10 MARCH 2017 WORK ORDER# PW 3642 DIVISION 8 I