Granite Construction 5/14/2020 - Laserfiche WebLink

I 1 1 (******) 2 Induction loops shall be constructed as detailed in City of Everett Drawing Nos. 804, 3 805, 809, 810, and Section 8-20.3(14)C of the Standard Specifications with the 4 following modifications: 5 6 1. The loop locations shall be marked on the pavement by the contractor and I 7 approved by the engineer prior to sawcutting. At no point shall any of the 8 sawcuts pass closer than 1' to any utility cover. 9 2. Loop detector sealant shall be as shown in City of Everett Standard Drawing 10 809, or as approved by the Engineer. 11 3. Rope is not required. 12 4. Loops shall not be installed in rainy weather or at temperatures below 40°. 13 5. Loops shall be placed in the sawcut in a clockwise direction. 14 6. The loop sealant shall be applied in accordance with the manufacturer's 15 recommendations. I 16 17 7. Detector loop wire shall use 14 AWG stranded copper conductors, and shall conform to IMSA Specification 51-7, with cross-linked polyethylene (XLPE) 18 insulation encased in a polyethylene outer jacket (PE tube). . 19 8. The area around the conduit stub-out shall be patched with hot mix asphalt 20 concrete if it is greater than 2" in width. 21 9. The sawcuts shall be of uniform depth and any sharp edges, abrasions or 22 ridges shall be removed prior to placing the wire. 23 10. The sawcut depth shall be a minimum of 3'/2" and shall provide a minimum 24 of 2" cover above the loop wires. 25 11. The sawcut width shall be a minimum of 1/4" for the loop and 3/8" for the 26 home run. 27 12. The sawcut shall be cleaned out with a high pressure water stream and then 28 dried with compressed air prior to placing the wire. 29 13.All splices between the loop wire and the loop lead-in cable shall be soldered 30 and utilize a splice kit in conformance with Standard Drawing 809. 31 14. When the roadway is to be overlaid as a part of the project, the loops shall 32 be installed prior to the final overlay. 33 15. Circular loops are standard installations. Where shown in the Plans, the 34 contractor shall install quadrupole loops at stop lines due to stub-out 35 diameter. At locations where quadrupole loops are shown and adequate 36 stub-out diameter exists, round loops may be substituted for quadrupole 37 loops. I 38 39 40 Existing Traffic Loops 41 111 42 The Contractor shall notify the Area Traffic Engineer through the Engineer a 43 minimum of five (5) working days in advance of pavement removal or grinding in 44 areas with existing loops. I 45 46 If the Engineer suspects that damage to any loop, not identified in the Plans as 47 being replaced, may have resulted from Contractor's operations or is not operating 48 adequately, the Engineer may order the Contractor to perform the field tests 49 specified in Section 8 20.3(14)D. The test results shall be recorded and submitted 50 to the Engineer. Loops that fail any of these tests shall be replaced. 1 51 111 2020 PAVEMENT MAINTENANCE OVERLAY PAGE 73 OF 79 SPECIAL PROVISIONS WORK ORDER 3727 FEBRUARY 20,2020