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FIELD REPORT <br />I!J / 21312 30T" Drive SE <br />S 't 110 <br />FW r/0 (_ 0 12 <br />UI e <br />Bothell, WA 98021.7010 <br />HWA Job No. Task # <br />Report No. <br />HWAGEOSCIENCES INC. Tel. 425-774-0106 <br />2014-117 <br />061 <br />City Project No. <br />Date <br />Fax. 425-774-2714 <br />June 7 - 8, 2019 <br />Project Name <br />Location or Address <br />Day of the Week <br />Seaway Transit Center <br />Everett, Washington <br />Friday - Saturday <br />Owner <br />Owner Rep. <br />Weather Temp. (F) <br />Community Transit <br />Dan Jerome <br />Cloud 50s — 60s <br />Client <br />Client Rep. <br />HWA Project Engineer <br />Perteet, Inc. <br />Bill Mitchell <br />Steve Greene <br />Contractor <br />Contractor Rep. <br />HWA Field Rep. <br />ICI Construction / Granite <br />Reed <br />Greg Krankurs <br />SUMMARY OF FIELD TIME SPENT ON PROJECT TODAY: <br />Start Travel: 2015 (6-7-19) Arrive on Site: 2045 (6-7-19) Departed Site: 0420 (6-8-19) End Travel: 0445 (6-8-19) <br />ACTIVITY BEING INSPECTED: Class %2-inch HMA pavement delivery, placement, and compaction. <br />GENERAL LOCATION: Road Repair Sections on Seaway Blvd and 75th St SW (See Figure 1). <br />DETAILED LOCATION: The specific locations and elevations tested are summarized on the attached `Field <br />Compaction Test Report'. <br />TYPE OF INSPECTION: Continuous. <br />STATUS AND DETAILS OF PLACEMENT OF MATERIAL: The contractor removed asphalt in the repair <br />sections on Seaway Blvd and 75th St SW using a Wirtgen W100 CFi grinding machine. The section on Seaway <br />Blvd was 6 inches deep and 40 inches wide. The section on 75th St SW was 4 inches deep and 40 inches wide. <br />See Figure I for approximate length of the sections. The bottom of the repair section on Seaway Blvd consisted <br />of 16 inches wide of existing pavement and 24 inches wide of exposed CSBC base. At the intersection of <br />Seaway Blvd and 75th St SW, the bottom of the repair section consisted of 40 inches wide of CSBC. The bottom <br />of the repair section on 75th St SW consisted entirely of existing HMA (no exposed base). <br />Prior to placing HMA, the contractor compacted the exposed CSBC using a HAMM HD8 dual steel drum <br />vibratory roller and a vibratory plate. <br />The contractor applied tackifier to all edges and existing HMA prior to paving. The temperature of the HMA <br />during placement was between 280F and 300F. The Contractor placed and compacted Class %2-inch HMA (see <br />below for lift placement details). HMA was placed from truck tailgate into a leveling attachment on a skid -steer. <br />The material was compacted using a HAMM HD8 dual steel drum vibratory roller on the base lift (within the <br />40-inch-wide cut) and a CAT CB24B dual steel drum vibratory roller at final road grade. In the repair section <br />on Seaway Blvd, the contractor placed 4-inch thick base lift in the and then 2-inch thick wearing course. In the <br />repair section on 75th St SW, the contractor placed approximately a 3.5-inch thick base lift in the and then a <1- <br />inch thick wearing course. The final height of the wearing coarse on 75th St SW was approximately 0.25 inches <br />above road grade after compaction. The contractor applied additional tackifier between lifts. The surface <br />temperature of the base lift was approximately 160F on Seaway Blvd and 20OF on 75th St SW when the wearing <br />course was placed. <br />HWA INSPECTION ACTIVITIES RELATED TO THIS ITEM: HWA was contracted to provide QA oversight <br />of the QC process during testing and inspection of the roadway repair process. Suzie Miller from GeoTest was <br />on site as the Contractor's QC agency representative. HWA carried out visual observation, temperature <br />monitoring, and compaction testing of both CSBC and HMA. HWA. observed both the lift placement and the <br />FR-061 06-07-2019 and 06-08-2019 GK.docxGK l / <br />