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18TH STREET PEDESTRIAN IMPROVEMENTS 3741 RMT July 03, 2024 60 04.2 or 9-03.21. The Contractor shall immediately dispose of all other debris resulting 1 from the planing operation in a Contractor-provided site off the right-of-way. 2 3 Immediately after grinding, the Contractor shall construct an asphalt transition 4 (temporary paper joints or ramps), on all traveled ways, wheel chair ramps, and exposed 5 manholes, inlets, catch basins, monuments, valve boxes, and other structures on the 6 street, regardless of depth in grinding. Asphalt transition must be removed prior to 7 overlay. Cast iron structures left higher than 2” must be removed and steel plates 8 installed to protect the opening and provide a suitable driving surface. 9 10 Sweeping of roadway surface shall immediately follow all grinding. Sweeping of roadway 11 surface is required prior to tack placement and paving. 12 13 The road shall be overlayed within 3 working days after planing operation for streets 14 without loops. On streets where loops will be replaced, the overlay shall be completed 15 within 8 working days after planing operation. 16 17 Sweepers following the grinding work will not be paid separately, and is included in the 18 bid item “Planing Bituminous Pavement (2” Deep)”, per square yard. 19 20 For mainline planing operations, the equipment shall have automatic controls, with 21 sensors for either or both sides of the equipment. The controls shall be capable of 22 sensing the proper grade from an outside reference line, or a mat-referencing device. 23 The automatic controls shall also be capable of maintaining the desired transverse slope. 24 The transverse slope controller shall be capable of maintaining the mandrel at the 25 desired slope (expressed as a percentage) within plus or minus 0.1 percent. 26 27 Pre-level course is not anticipated on any of the selected streets. If, however, after 28 plaining operations, drivability issues cannot be resolved with 2” overlay, pre-level will be 29 required as directed and paid for by “HMA Class 1/2” PG 64-22”, per ton. Contractor is 30 strongly encouraged to bid the work to cover their cost of pre-level operations. 31 32 5-04.3(14)A Paving and Planing Under Traffic 33 34 5-04.3(14)A1 General 35 In addition the requirements of Section 1-07.23 and the traffic controls required in 36 Section 1-10, and unless the Contract specifies otherwise or the Engineer approves, the 37 Contractor must comply with the following: 38 39 1. Intersections: 40 a. Keep intersections open to traffic at all times, except when paving or planing 41 operations through an intersection requires closure. Such closure must be kept 42 to the minimum time required to place and compact the HMA mixture, or plane 43 as appropriate. For paving, schedule such closure to individual lanes or portions 44 thereof that allows the traffic volumes and schedule of traffic volumes required in 45 the approved traffic control plan. Schedule work so that adjacent intersections 46 are not impacted at the same time and comply with the traffic control restrictions 47 required by the Contracting Agency. Each individual intersection closure or 48 partial closure, must be addressed in the traffic control plan, which must be 49 submitted to and accepted by the Engineer, see Section 1-10.2(2). 50