11831 AIRPORT RD WHOLE SITE FILE 2020-01-21

3. The bottom of the sawcut shall be smooth. No edges created by differences in sawcut depths will be allowed. 4. All sawcut corners shall be rounded to a minimum 1.5 inch radius. 5. All sawcuts shall be cleaned with a 1000 psi high pressure washer as certified by the manufacturer's label on the machine or as measured by an in line pressure gauge. Wash water and slurry shall be vacuumed out and the sawcut shall be blown dry with compressed air. Disposal of the wash water and slurry shall comply with the requirements of Section 1-07.5(3) and the Special Provision LEGAL RELATIONS AND RESPONSIBILITIES TO THE PUBLIC. 6. Loops shall be installed after grinding and prior to the final lift of roadway surfacing material. 7. The conductor shall be installed one turn on top of the previous turn. All turns shall be installed in a clockwise direction. The conductors shall be secured to prevent floating with 2-inch lengths of high temperature foam backer rod sized for a snug fit. The backer rod shall be spaced at 2-foot intervals around the perimeter of the sawcut and at corners. 8. Installation of the sealant shall completely encapsulate the loop conductors. A minimum of one inch of sealant shall be provided between the top of the conductors and the top of the sawcut. The top of the sealant shall be flush to 1/8 inch below the top of the sawcut. 9. Use of kerosene solvent is prohibited. Section 8-20.3(14)C is supplemented with the following: Relocate Existing Detection Loops and Access Control Gate at Canyon Park P&R Abandon existing 6'x12' detection loops and restore pavement at the locations shown in the Plans. Break loop lead-in splices and remove all associated wiring to termination point. Remove junction boxes, conduit bends and elbows, as directed. Sawcut pavement and install new 6'x12' loops as staked by the Engineer, per WSDOT Standard Plans, J-50.11-00 and J-50.15-00. Install new junction boxes, conduit and wiring as directed. Coordinate new wiring types and termination points with the existing wiring types and termination points. Relocate Existing Signal Loops on SR 96/132nd Street at Dumas Road Replace existing stopline detection loops per WSDOT Standard Plan J-50.12-00 (Type 3 Stopline loops). Existing advance loops to remain. Remove and replace shielded cables for advance loops, rerouting and relocating the junction boxes at Station as indicated. 8-20.3(14)C Existing Traffic Loops The Contractor shall notify the Area Traffic Engineer through the Engineer a minimum of five working days in advance of pavement removal or grinding in areas with existing loops. Swift Green Line—Corridor Stations Special Provisions SP136 May 2017