HM Pacific Northwest Inc. 5/18/2023

I 1 4. Loops shall not be installed in rainy weather or at temperatures below I 2 40°. 3 5. Loops shall be placed in the sawcut in a clockwise direction. 4 6. The loop sealant shall be applied in accordance with the manufacturer's 5 recommendations. 6 7. Detector loop wire shall use 14 AWG stranded copper conductors, and 7 shall conform to IMSA Specification 51-7, with cross-linked polyethylene I 8 9 (XLPE) insulation encased in a polyethylene outer jacket (PE tube). 8. The area around the conduit stub-out shall be patched with hot mix 10 asphalt concrete if it is greater than 2" in width. 11 9. The sawcuts shall be of uniform depth and any sharp edges, abrasions 12 or ridges shall be removed prior to placing the wire. 13 10. The sawcut depth shall be a minimum of 3'/2" and shall provide a I 14 minimum of 2" cover above the loop wires. 15 11. The sawcut width shall be a minimum of 1/4"for the loop and 3/8"for the 16 home run. 17 12. The sawcut shall be cleaned out with a high pressure water stream and I18 then dried with compressed air prior to placing the wire. 19 13. All splices between the loop wire and the loop lead-in cable shall be 20 soldered and utilize a splice kit in conformance with Standard Drawing I 21 809. 22 14. When the roadway is to be overlaid as a part of the project, the loops 23 shall be installed prior to the final overlay. I 24 15. Circular loops are standard installations. Where shown in the Plans, the 25 contractor shall install quadrupole loops at stop lines due to stub-out 26 diameter. At locations where quadrupole loops are shown and adequate I 27 stub-out diameter exists, round loops may be substituted for quadrupole 28 loops. 29 I 30 31 Existing Traffic Loops 32 33 The Contractor shall notify the Area Traffic Engineer through the Engineer a 34 minimum of five (5) working days in advance of pavement removal or grinding 35 in areas with existing loops. 36 I 37 If the Engineer suspects that damage to any loop, not identified in the Plans as 38 being replaced, may have resulted from Contractor's operations or is not 39 operating adequately, the Engineer may order the Contractor to perform the field I 40 tests specified in Section 8 20.3(14)D. The test results shall be recorded and 41 submitted to the Engineer. Loops that fail any of these tests shall be replaced. 42 I 43 Loops that fail the tests, as described above, and are replaced shall be installed 44 in accordance with current City of Everett design standards and Standard 45 Drawings, as determined by the Engineer. 46 I47 If traffic signal loops that fail the tests, as described above, are not replaced and 48 operational within 5 working days, the Contractor shall install and maintain 49 interim video detection until the replacement loops are operational. The type of I 50 interim video detection furnished shall be approved by the Engineer prior to 51 installation. I 2023 FEDERAL OVERLAY FEDERAL AID#STBGUL-2715(011) I WO#3788 March 2,2023 SP-105