642.01 Description. This item shall consist of constructing
rumble strips on asphalt shoulders or Portland ceme nt concrete shoulders according to these specifications and con forming to the details shown on the plans.
642.02 Equipment. The equipment used for cutting rumble
strips shall consist of a rotary-type cutting head of such size to produce cuts of the dimensions shown on the plans. The cutting tool shall be equipped with guides to provide consistent alignment for each cut in relation to the roadway and to provide uniformity and consistency throughout the project. The cutting he ad shall have the cutting tips arranged in a pattern that will produc e a relatively smooth cut (approximately 1/16 ″ [2 mm] between peaks and valleys). The cutting head(s) shall be suspended f rom the power unit in a manner that will allow the tool to self-align itself with the slope of the shoulder and/or any irregularities in the sh oulder surface.
642.03 Construction Requirements. (a) Rumble Strips in
Asphalt Shoulders. The rumble strips shall be cut in the existing shoulders at the locations shown on the plans or as designated by the Engineer. Prior to commencement of the work, the C ontractor shall demonstrate to the Engineer the ability to achieve the desired results without damaging the existing pavement. 541 At the end of each working day, all equipment shall be removed roadway or parked no closer than 30 ′ (15 m) from the traveled lane. The pavement shall be thoroughly cleaned by sweepin g or flushing. All excess material shall be disposed of in a manne r approved by the Engineer.
b.Rumble Strips in Portland Cement Concrete Shoul ders. The Contractor shall have the option of cutting the rumble strips according to the above requirements or forming the rumble strips in the fresh concrete according to the requirements of Section 506.
642.04 Method of Measurement. (a) Rumble Strips in Asphalt
Shoulders. Rumble Strips in Asphalt Shoulders will be measur ed by the linear foot (meter) longitudinally along the shoulder on which the rumble strips are constructed.
b.Rumble Strips in Portland Cement Concrete Shoul ders. Rumble Strips in Portland Cement Concrete Shoulders will be measured by the linear foot (meter) longitudinally along the shoulder on which the rumble strips are constructed.
642.05 Basis of Payment. (a) Rumble Strips in Asph alt
Shoulders. Work completed and accepted and measured as provided above will be paid for at the contract uni t price bid per linear foot (meter) for Rumble Strips in Asphalt Sh oulders, which price shall be full compensation for constructing t he rumble strips; for cleaning the pavement; for disposing of excess material; and for all labor, equipment, tools and incidentals necessa ry to complete the work.
b.Rumble Strips in Portland Cement Concrete Shoul ders. Work completed and accepted and measured as provide d above will be paid for at the contract unit price bid per line ar foot (meter) for Rumble Strips in Portland Cement Concrete Shoulders , which price shall be full compensation for constructing the rum ble strips; for cleaning the pavement; for disposing of excess mate rial; and for all labor, equipment, tools and incidentals necessary t o complete the work. Payment will be made under: Pay Item Pay Unit Rumble Strips in Asphalt Shoulders Linear Foot (Met er) Rumble Strips in Portland Cement Concrete Shoulders Linear Foot (Meter) This page intentionally blank.
Division 700
TRAFFIC CONTROL FACILITIES
RUMBLE STRIPS in other states
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