Lakeside Industries Inc. 6/21/2021

I 1 CNH 8-20.3(14)C INDUCTION LOOPS.DOCX 2 8-20.3(14)C Induction Loop Vehicle Detectors 3 4 Section 8-20.3(14)C is supplemented with the following: 5 1 6 (******) 7 Induction loops shall be constructed as detailed in City of Everett Drawing Nos. 111 8 804, 805, 809, 810, and Section 8-20.3(14)C of the Standard Specifications with 9 the following modifications: 10 I 11 1. The loop locations shall be marked on the pavement by the contractor 12 and approved by the engineer prior to sawcutting. At no point shall any 13 of the sawcuts pass closer than 1' to any utility cover. 14 2. Loop detector sealant shall be as shown in City of Everett Standard 15 Drawing 809, or as approved by the Engineer. 16 3. Rope is not required. 17 4. Loops shall not be installed in rainy weather or at temperatures below 1 18 40°. 19 5. Loops shall be placed in the sawcut in a clockwise direction. 20 6. The loop sealant shall be applied in accordance with the manufacturer's 11 21 recommendations. 22 7. Detector loop wire shall use 14 AWG stranded copper conductors, and 23 shall conform to IMSA Specification 51-7, with cross-linked polyethylene 111 24 (XLPE) insulation encased in a polyethylene outer jacket (PE tube). 25 8. The area around the conduit stub-out shall be patched with hot mix 26 asphalt concrete if it is greater than 2" in width. 27 9. The sawcuts shall be of uniform depth and any sharp edges, abrasions 28 or ridges shall be removed prior to placing the wire. 29 10. The sawcut depth shall be a minimum of 31/2" and shall provide a 30 minimum of 2" cover above the loop wires. 31 11. The sawcut width shall be a minimum of 1/4"for the loop and 3/8"for the 32 home run. 33 12. The sawcut shall be cleaned out with a high pressure water stream and 34 then dried with compressed air prior to placing the wire. 35 13. All splices between the loop wire and the loop lead-in cable shall be 36 soldered and utilize a splice kit in conformance with Standard Drawing 37 809. 38 14. When the roadway is to be overlaid as a part of the project, the loops 39 shall be installed prior to the final overlay. 40 15. Circular loops are standard installations. Where shown in the Plans, the 41 contractor shall install quadrupole loops at stop lines due to stub-out 42 diameter. At locations where quadrupole loops are shown and adequate I/ 43 stub-out diameter exists, round loops may be substituted for quadrupole 44 loops. 46 46 47 I I 2021 PAVEMENT MAINTENANCE OVERLAY PAGE 78 OF 84 DIVISION T WORK ORDER 3751 Addendum 1 APRIL 5,2021