Specifications include, but are not limited to: Ultrathin Overlay: All work for the Ultrathin Bonded Overlay Shall comply with KDOT specifications section 613. This includes section 613.2 as the contractor will be required to follow these quality control specifications as detailed in this section. Section 613.8, Part b. This section in the KDOT specifications does not apply to this project. The emulsified asphalt shall be considered subsidiary to the bid item “HMA Surface (Ultrathin Bonded) (Type A) (PG 70- 28)”. Ultrathin Cold Milling: Transition milling will take place at the beginning and end of the project limits and abutting bridges and intersections. The transition milling shall transition from 5/8” to 0” in the 50 feet. Side Street Approach Milling will require the complete milling of the side street approach in the rare case where the approach pavement type is the same as the arterial street being paved but different than the pavement type of the majority of the side street. All work for milling will be subsidiary to the Ultrathin Bonded Asphalt Surface bid item. All millings from this project will need to be salvaged to either the West Maintenance Facility, 5801 W. 3rd St. N, or Northeast Maintenance Facility, 2901 E 33rd St. N. Delivery is incidental to the cost of milling and is not paid as a bid item. Application Rate: The target application rate of the ultrathin bonded overlay shall be 65 lbs. /sy. Longitudinal Construction Joints. All longitudinal paving joints shall conform to existing lane widths. No longitudinal paving joints will be allowed in the wheel paths of traffic lanes. Any specialized instances or deviations will require prior approval from the Engineer. Striping on Non-Overlaid Surfaces at Intersections. The continuation of Lane Lines, placement of Turn Arrows, and placement of Stop Bars on adjacent intersection surfaces (as directed by the Engineer) will be accomplished using MMA as reflected in the bid items. On adjacent intersections, additional 12” banding of the brick crosswalks, continental crosswalk markings, and stop bars will be completed on all legs of the adjacent intersection as determined by the Engineer. Quantities have been included for these sections. The placement shall follow the manufacture’s recommendations for preparation and application. Contractor must submit specifications for the product to the Engineer for approval prior to application. Separate bid items are provided for this type of striping. Pavement Markings. All pavement markings shall follow KDOT’s Standard Specification 806.2.b.(1) Wet Weather Pavement Markings Wet Recoverable and all associated material specifications. Manhole Adjustments. All manhole adjustments will be marked in the field prior to overlay by the contractor. The number and type of manholes per street location is listed on attachment D. For all adjustment using the existing ring and lid, the contractor has the option of using the American Highway Products manhole riser ring to bring the lid up to grade. If the adjustment is made after the overlay, asphalt repairs shall then be made around the manhole (2” min) to match grade. Milling may be necessary to obtain the full 2”. With new ring and lid adjustments, concrete base shall be poured within 2” of new surface with new asphalt placed for final surface. All cost for concrete, asphalt, ring and lid, or any other materials needed for these adjustments shall be subsidiary to the ring and lid adjustment bid items. For all adjustments, the contractor shall make pavement repairs 5’ (feet) square around the manhole. Water Valve Adjustments. All Water Valve locations will be marked in the field prior to overlay by the contractor. The number of water valves for each street section is listed on attachment D. The intent is to use the existing box and lid, the contractor will install an adjustment riser prior to paving to bring the lid up to final pavement elevation. The risers come in a 1” and 1 ½” thickness. The contractor will use the appropriate riser such that the final elevation of the valve lid is at or less than 1” below final pavement elevation. All Water Valves whether adjusted or not shall be exposed and accessible after the placement of the overlay.
