Laserfiche WebLink
2026 Pavement Maintenance Overlay Special Provisions <br />PW# 3860 SP - 84 March 5, 2026 <br />1 <br />2 8-20.3.GR8 <br />3 Construction Requirements <br />4 <br />5 8-20.3(14).GR8 <br />6 Signal Systems <br />7 <br />8 8-20.3(14)A.GR8 <br />9 Signal Controllers <br />10 <br />11 8-20.3(14)A.INST1.GR8 <br />12 Section 8-20.3(14)A is supplemented with the following: <br />13 <br />14 CNH 8-20.3(14)C INDUCTION LOOPS.docx <br />15 8-20.3(14)C Induction Loop Vehicle Detectors <br />16 <br />17 Section 8-20.3(14)C is supplemented with the following: <br />18 <br />19 (******) <br />20 Induction loops shall be constructed as detailed in City of Everett Drawing Nos. <br />21 804, 805, 809, 810, and Section 8-20.3(14)C of the Standard Specifications with <br />22 the following modifications: <br />23 <br />24 1. The loop locations shall be marked on the pavement by the contractor <br />25 and approved by the engineer prior to sawcutting. At no point shall any <br />26 of the sawcuts pass closer than 2’ to any utility cover. <br />27 2. Loop detector sealant shall be as shown in City of Everett Standard <br />28 Drawing 809, or as approved by the Engineer. <br />29 3. Rope is not required. <br />30 4. Loops shall not be installed in rainy weather or at temperatures below <br />31 40o. <br />32 5. Loops shall be placed in the sawcut in a clockwise direction. <br />33 6. The loop sealant shall be applied in accordance with the manufacturer’s <br />34 recommendations. <br />35 7. Detector loop wire shall use 14 AWG stranded copper conductors, and <br />36 shall conform to IMSA Specification 51-7, with cross-linked polyethylene <br />37 (XLPE) insulation encased in a polyethylene outer jacket (PE tube). <br />38 8. The area around the conduit stub-out shall be patched with hot mix <br />39 asphalt concrete if it is greater than 2" in width. <br />40 9. The sawcuts shall be of uniform depth and any sharp edges, abrasions <br />41 or ridges shall be removed prior to placing the wire. <br />42 10. The sawcut depth shall be a minimum of 3‰" and shall provide a <br />43 minimum of 2" cover above the loop wires. <br />44 11. The sawcut width shall be a minimum of 1/4" for the loop and 3/8" for the <br />45 home run. <br />46 12. The sawcut shall be cleaned out with a high pressure water stream and <br />47 then dried with compressed air prior to placing the wire. <br />48 13. All splices between the loop wire and the loop lead-in cable shall be <br />49 soldered and utilize a splice kit in conformance with Standard Drawing <br />50 809.