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2026 Pavement Maintenance Overlay Special Provisions <br />PW# 3860 SP - 85 March 5, 2026 <br />1 14. When the roadway is to be overlaid as a part of the project, the loops shall <br />2 be installed prior to the final overlay. <br />3 15. Circular loops are standard installations. Where shown in the Plans, the <br />4 contractor shall install quadrupole loops at stop lines due to stub-out <br />5 diameter. At locations where quadrupole loops are shown and adequate <br />6 stub-out diameter exists, round loops may be substituted for quadrupole <br />7 loops. <br />8 <br />9 <br />10 Existing Traffic Loops <br />11 <br />12 The Contractor shall notify the Area Traffic Engineer through the Engineer a <br />13 minimum of five (5) working days in advance of pavement removal or grinding in <br />14 areas with existing loops. <br />15 <br />16 If the Engineer suspects that damage to any loop, not identified in the Plans as <br />17 being replaced, may have resulted from Contractors operations or is not <br />18 operating adequately, the Engineer may order the Contractor to perform the field <br />19 tests specified in Section 8 20.3(14)D. The test results shall be recorded and <br />20 submitted to the Engineer. Loops that fail any of these tests shall be replaced. <br />21 <br />22 Loops that fail the tests, as described above, and are replaced shall be installed <br />23 in accordance with current City of Everett design standards and Standard <br />24 Drawings, as determined by the Engineer. <br />25 <br />26 If traffic signal loops that fail the tests, as described above, are not replaced and <br />27 operational within 5 working days, the Contractor shall install and maintain <br />28 interim video detection until the replacement loops are operational. The type of <br />29 interim video detection furnished shall be approved by the Engineer prior to <br />30 installation. <br />31 <br />32 GLF 8-20.4.DOCX <br />33 8-20.4 Measurement <br />34 <br />35 Section 8-20.4 is supplemented with the following: <br />36 <br />37 (******) <br />38 Vehicle Loop Detectors, for both loop perimeter and home run, shall be measured by the <br />39 linear foot of the neat sawcut line in place in the roadway. No additional measurement will <br />40 be made for the installation of lead-in conduit and shall be included in the measurement <br />41 <br />42 Loop Detector Lead-In Cable shall be measured by the linear foot of the neat line of <br />43 conduit between the controller cabinet and loop splice. No additional measurement will <br />44 be made for coiled loop detector cable in junction boxes or cabinets. <br />45 <br />46 Conduit Pipe 2 In. Diam. shall be measured by the linear foot of the neat line of conduit <br />47 between the junction box and the curb line. No additional measurement will be made for <br />48 sweeps or elbows in junction boxes or at the curb line. <br />49