491MILLING OF ASPHALT PAVEMENT SURFACE

491.1DESCRIPTION—This work is the milling of an existing asphalt pavement surface.

491.3CONSTRUCTION—

with an automatic grade and slope control system and be capable of milling concrete.

that conforms to the surface tolerance requirements of Section 413.3(l). Immediately after milling, remove milled material. Carefully remove the existing asphalt material around utility facilities within work areas. Repair or replace utility facilities that are damaged by the milling operation to the satisfaction of the utility owner. Control the rate of milling to avoid tearing of the mat, which causes chunky and non-uniformly milled material. If directed, separate oversized and chunky milled material. Maintain the milled pavement surface free of all loose materials and dust. Do not allow traffic to drive on any milled surface for more than 6 calendar days. Place the first overlaying asphalt course within 7 calendar days from the start of the milling operation. Failure to overlay a milled section of roadway within 7 calendar days after it has been milled will constitute a failure to comply with a contract traffic control requirement for which work zone liquidated damages, as specified in section 108.07(c), will be assessed. Work stoppages caused by the Department, Utilities, and documented weather delays will not count towards the 7 calendar days for calculating Work Zone Liquidated Damages. Maintain all milled surfaces and re pair or replace any areas damaged due to the asphalt overlay not being placed within 7 calendar days of the milling operation methods accepted by the Representative at no additional cost to the Department. If the first course of the asphalt overlay is not placed on the same day of the milling operation, install ROUGH ROAD (W8 -8) signs according to Publication 212, Publication 213, and MUTCD 1/2- mile in advance of the project and at a minimum of 1/2- mile intervals throughout the project befor e the end of the day. Eliminate vertical edges around utilities and inlets wi thin all open travel lanes at the end of each day. If this is not feasible, install a BUMP (W8-1) sign in advance of the appurtenance, and consider a reduced regulatory speed limit sign. Install these signs at no additional cost to Department.

conditions will apply with regard to the disposition of milled material.

the Contractor, satisfactorily dispose of milled material immediately after milling.

material will be retained by the Department, deliver milled material to the designated stockpiling location immediately after milling. The proposal/contract will include a special provision that identifies where milled material is to be stockpiled, as well as the approximate distance (miles) from the project site to the designated stockpiling location. Advance notification of a scheduled delivery of milled material to the designated stockpile is to be provided to the individual whose name and telephone number are listed in the special provision.

491.4MEASUREMENT AND PAYMENT—

Stockpile). Square Yard The cost of delivering milled material to the designated stockpiling location is incidental to this item of work.