SECTION 637 - DUST CONTROL
637.01 Description This work shall consist of controlling du st that results from
traffic on the project and the Contractor’s operations by applying water and/or calcium chloride as directed by the Resident. The requirements of Special Provision 656 and other pertinent Sections of the Standard Specifications will apply.
637.02 Materials The water shall not be salt or brackish and shall be free from oil,
acid and injurious alkali or vegetable matter. The calcium chloride shall conform to Subsection 712.02 except that the requirements for total alkali chloride and impurities shall not apply.
637.03 Sprinkling Water shall be applied by approved methods and with equipment
including a tank with a pressure pump and a nozzle-equipped spray bar.
637.04 Calcium Chloride Calcium chloride shall be used when a uthorized for
controlling dust on the roadway under construction and on approved haul roads from the pits to the project or in the area of dwellings and where dust constitutes a hazard to traffic. Calcium chloride shall be applied by mechanical spreaders or by hand at the rate designated.
637.05 Method of Measurement Water for sprinkling will be me asured by the 1,000
gal in calibrated tanks or distributors or by accurate water meters. Calcium chloride will be measured for payment by the number of tons satisfactorily applied. Delivery slips as specified in Section 108.1.3-f will be requi red except that weight for calcium chloride shall be determined from the weight stated on each bag and the number of bags used. 6-114 Water and calcium chloride acceptably applied for the item Dust Control will be measured for payment as one lump sum.
637.06 Basis of Payment Water for sprinkling will be paid fo r at the contract unit
price per Thousand Gallons. Calcium chloride will be paid for at the contract unit price p er ton. Water and calcium chloride for the item Dust Control will be paid for at the contract lump sum price. Payment will be full compensation for furnishing and applying water and calcium chloride as required. Failure by the Contractor to follow Standard Specification or Special Provision - Section 637 and/or the Contractor’s own Soil Erosion and Pollution Control Plan concerning Dust Control and/or the Contractor’s own Traffic Control Plan concerning Dust Control and/or visible evidence of excessive dust problems, as determined by the Resident, will result in a reduction in payment, computed by reducing the Lump Sum Total by 5% per occurrence per day. The Department’s Resident or any other representative of the Department reserves the right to suspend the work at any time and request a meeting to discuss violations and remedies. The Department shall not be held responsible for any delay in the work due to any suspension under this item. Additional penalties may also be assessed in accordance with Special Provision 652 - Work Zone Traffic Control and Standard Specification 656 - Temporary Soil Erosion and Water Pollution Control. When no item for Dust Control item or individual items are included in the schedule of items, payment for the work will be considered incidental to the contract. Payment will be made under: Pay Item P a y U n i t
637.07 Sprinkling 1000 Gallon
637.08 Calcium Chloride Ton
637.071 Dust Control Lump Sum
Dust Control in other states
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