SECTION 620 - MOBILIZATION AND REQUISITE WORK
620.01 Description . Mobilization consists of moving all labor, equipment, supplies, and
incidentals to the project site. It also includes all mobilization pre-construction costs that are necessary direct costs to th e project and are of a general nature rather than directly attributable to other pay items. Requisite work consists of the preparation for and the performance of construction necessary as a requisite to the performance of other items of work and the cost of such work when no other provisions are made in th e contract for payment therefore. Such work shall include, but is not limited to, all obliga tions, preparation, construction and all other costs of requisite work for which no compensation is provided in other items of work.
620.02 Blank .
620.03 Blank .
620.04 Method of Measurement .
620.04.1 Mobilization . Measurement for payment will be in accordance with the
following schedule:
a.When one percent (1%) of the original contract amount is earned from other bid items exclusive of those listed as dependent items, twenty five percent (25%) of the amount bid for mobilization, or two and one-half percent (2.5 %) of the original contract amount, whichever is lesser, will be paid.
b.When ten percent (10%) of the original contract amount is earned from other bid items exclusive of those listed as dependent items, fifty percent (50%) of the amount bid for mobilization, or five percen t (5%) of the original contract amount, whichever is lesser, will be paid.
c.When twenty five percent (25%) of the original contract amount is earned from other bid items exclusive of those listed as dependent items, ninety percent (90%) of the amount bid for mobilization, or nine percent (9%) of the original contract amount, whichever is lesser, will be paid.
d.When seventy five percent (75%) of the original contract amount is earned from other bid items exclusive of those listed as dependent items, one hundred percent (100%) of the amount bid for mobilization, or ten percent (10%) of the original contract amount, whichever is lesser, will be paid.
e.Upon completion of all work, the re maining amount bid for mobilization will be paid. In the event the contract is terminated und er the provisions of Subsection 108.09, the percentages listed will not be used in computing total payment, but the percentage of original contract amount, exclusive of dependent items, earned at the time of termination will be applied to the lump sum price bid for mobilization.
620.04.2 Requisite Work . For monthly estimates, the Engineer will estimate the
percentage of requisite work completed. Upon satisfactory completion of all requisite work, measurement will be considered as 100 percent. 620.05--Basis of Payment . Mobilization and requisite work will be paid for at the contract lump sum prices, which shall be full compen sation for completing the work. When not listed as pay items, the cost of this work shall be included in the prices for other items bid. Payment will be made under: 620-A: Mobilization - lump sum 620-B: Requisite Work - lump sum SECTION 621 - FIELD LABORATORY
621.01 Description . When required in the contract, this work consists of providing, for
the exclusive use of the Engineer, one or more approved field laboratory buildings or portable trailers in which to house the equipment necessary to conduct required tests. It shall also include the furnishing of utilities as herein provided and the removal of the facilities after the work has been completed. Unless otherwise specified, the building or trailer will remain the property of the Contractor.
621.02 Blank .
621.03 Construction Requirements . Unless otherwise indicated in the contract, each
field laboratory shall be at least seven and one-half feet wide, seven feet high inside, and shall contain at least 150 square feet of floor space. Each unit shall be floored, roofed, and weather-tight and shall contain the following:
a.At least three windows, each having at least six and one-half square feet of opening.
b.At least one door with lock and two keys.
c.A suitable work bench with adequate drawers. (d) Sink with running water supply as necessary for running tests.
e.Adequate ventilation and lighting, and facilities for providing reasonable temperature control.
f.Adequate supply of gas and electric current as required for testing. In addition to the above, the Contractor shall provide toilet facilities within one hundred feet of each field laboratory. Each unit shall be located as specified, and in the case of central mixing or other plants, the unit shall be so located that the details of the Contractor's or producer's plant operations are in plain view of and visible from at least one window. Wh ere the Contractor's operations are such that the Engineer deems it advisable to do so, the Contractor shall move the unit to other suitable location(s). The Engineer shall be the sole judge as to the number of laboratory units required.
621.04 Method of Measurement . Each specified field la boratory conforming to the
requirements of the contr act will be measured by th e unit complete in place.
621.05 Basis of Payment . Field laboratories furnished as specified will be paid for at the
contract unit price per each, which price sha ll be full compensation for all materials, equipment, tools, labor, utilitie s, and incidentals necessary to provide each unit, for moving
Source: Mississippi Standard Specifications for Road and Bridge Construction, 2017 Edition. Pages 496–496 of 1,113.