ITEM 618 RUMBLE STRIPS ON SHOULDERS
618.01
Description
618.02
Construction of Rumble Strips on Shoulders
618.03 Method
of Measurement
618.04 Basis of
Payment
618.01 Description. This work consists of
grinding depressions (rumble strips) in paved shoulders.
Construct
rumble strips according to the standard construction drawings.
618.02 Construction of Rumble
Strips on Shoulders. Furnish equipment to grind the depressions with a
rotary cutting head that will produce the required dimensions and a pattern of
cutting tips to produce a smooth cut with approximately 0.06 inches (1.5 mm)
between peaks and valleys. Ensure that the cutting head is on its own
suspension system, independent from that of the power unit, to allow the head
to align itself with the slope of the shoulder or any irregularities in the
shoulder surface. Equip the cutting tool with guides or a guidance
system, clearly visible to the operator, to provide for consistent
alignment. Take effective measures to control dust during the grinding
operation. Remove and dispose of all grinding materials deposited on the
roadway pavement in a manner approved by the Engineer and before opening the
roadway to traffic.
618.03 Method of Measurement. The
Department will measure Rumble Strips by the number of feet (meters) or mile
(kilometer) as the sum of the lengths of the individual segments. The
Department will measure lengths along the inside edge of the shoulder, from the
center of the first depression in a segment to the center of the last
depression in that segment. If Rumble Strips are provided on more than
one shoulder, the Department will measure lengths separately for each shoulder
segment and add the individual lengths together to obtain the total length.
618.04 Basis of Payment. The
Department will not pay for repairing surface damage and extraneous marks
caused by the Contractor’s operations.
The
Department will pay for accepted quantities at the contract prices as follows:
Item
Unit
Description
618
Feet
(Meter),
Rumble Strips, (Asphalt Concrete)
Mile
(Kilometer)
618
Feet
(Meter),
Rumble Strips, (Concrete)
Mile
(Kilometer)