6-31 Sectio N 608 – Equipmen T Rental
608.0 1 DESCRIPTION . This work shall consist of furnishing, operating, and supervising the use of equipment for performance of work shown on the Plans, in accordance with these specification s or as directed by the Engineer. 608.0 2 GENERA L REQUIREMEN TS. Equipment shall be maintained in good mechanical condition and shall be operated by capable and experienced operators. Equipment that is to operate on paved surfaces shall be equipped with rubber tires or smooth street plates . Tracked equipment used to draw any other equipment shall be of a type that will not damage the work being done and has sufficient power to operate the drawn equipment effectively. Equipment used under this section shall meet the following specific requirements as to type, size, ca pacity, power, or dimensions . In determining whether a particular piece of equipment is classified as Type I, Type II, or Type III in Subsection 608.02(a) , Subsection 608.02(c) , Subsection 608.02(d) , Subsection 608.02( e), or Subsection 608.02( g), the make and model number shall be referenced against an equipment guide book. Whenever equipment of a certain size is requested by the Engineer and the Contractor supplies a larger size, payment will be fo r the size requested.
a.Bulldozer . Bulldozers shall be of the crawler type furnished with an angle type blade and power operated controls . The machine shall be classified by size as follows:
1.Type I . Type I bulldozers shall have a net engine or flywheel power rating of less than 150 horsepower.
2.Type II . Type II bulldozers shall have a net engine or flywheel power rating of 150 horsepower or greater .
b.Grader . Power grader s shall be self -propelled with pneumatic tire wheels, power -operated controls, and a wheelbase of at least 18 feet.
c.All-Purpose Excavator . All-purpose excavators shall be hydraulic excavators and m ay be self - propelled, truck -mounted, or crawler -mounted. The excavator shall include all attachments necessary to efficiently perform the work for which it is rented. The machine shall be classified as follows:
6-32 (1) Type I . Type I all -purpose excavators shall have a rated bucket capacity of at least 1/2
cubic yard but less than 1 cubic yard.
2.Type II . Type II all -purpose excavators shall have a rated bucket capacity of 1 cubic yard or greater.
d.Special Purpose Excavator .
1.Type I . Type I special purpose excavators shall have a hydraulic hammer with a minimum working weight of 5,000 pounds, a minimum tool diameter of 6 inches, and produce a minimum impact energy of 8,000 foot -pounds.
e.Power Broom . Power brooms shall provide a sweeping path of not less than 80 inches and be capable of maintaining a speed of 4 mph when sweeping. Sweeping shall take place at locations and times directed by the Engineer. The disposal of all sweepings shall meet with the approval of the Engineer. All hand labor required in connection with sweeping operations shall be incidental.
1.Type I . Type I power brooms may be of the self -propelled or towed type. Towed power brooms shall include the tow vehicle.
2.Type II . Type II power brooms shall consist of a pickup sweeper and accessory equipment. Type II power brooms shall be used for removing earth or other dust producing materials from paved surfaces to allay dust conditions. This equipme nt shall include suitable provisions for the application of water ahead of the sweeping brooms to prevent dusting, for the pickup, internal storage, and removal of sweepings, and for the cleaning of areas of heavy accumulation beyond the capacity of the sw eeper.
3.Type III . Type III power brooms shall be a regenerative type air sweeper capable of removing and containing all micron -sized fine dust particles from the designated surface.
f.Truck . Trucks may be the highway type or off -highway type with a minimum capacity of 6 -1/2 cubic yards. The capacity of the truck shall be determined by three -dimensional measurement of the body. All off -highway type trucks will be restricted unless otherwise approved by the Engineer.
g.Loader . Loaders may be of the w heeled or crawler type, straight or articulated, and shall be furnished with a standard bucket. The machine shall be classified by size as follows.
1.Type I . Type I loaders shall have a rated bucket capacity of at least 1 cubic yard but less than 4 cubi c yards.
6-33 (h) Truck -Mounted Attenuator . A truck -mounted attenuator (TMA) is a crash cushion designed to
smoothly decelerate an impacting vehicle. The TMA may be mounted on either a trailer or a truck. The unit on which the TMA is mounted shall weigh at least 10,000 pounds, with a heavier unit being preferable. The unit on which the TMA is mounted shall be used as a barrier vehicle as described in the MUTCD . All such attenuators shall meet TL -3 criteria as defined in NCHRP Report 350 or MASH . The Contractor shall provide the type of TMA, date of manufacture, and the current FHWA eligibility letter for the truck -mounted attenuator to the Engineer for approval prior to installation. The TMA shall be placed in accordance with the Contract and as directed by the Engineer.
i.Truck -Mounted Attenuato r, Advanced Warning Vehicle/Protection Vehicle (AWV/PV) . An AWV/PV shall consist of a truck -mounted attenuator meeting the requirements of Subsection 608.02( h) and equipped with a changeable message sign in accordance with the MUTCD and Subsection 641.0 5, including the requirement to maintain a spare unit . The changeable message sign shall be mounted to be clearly visible to the traveling public and shall be capable of being controlled from inside the cab of the vehicle. At a minimum, the controls shall be capable of turning the sign on and off, changing between preset messages, and inserting new messages when approved by the Engineer. 608.0 3 METHO D OF MEASUREMENT . For work not specified in the Contract, the Engineer will issue written orders to the Contractor for work to be performed by the specified equipment . The quantity of equipment to be measured for payment will be the number of hours each piece of equipment actually worked, including necessary travel time within the proje ct limits. 608.0 4 BASIS OF PAYMENT . The accepted quantity of the specified equipment will be paid for at the Contract unit price per hour . Payment will be full compensation for performing the work specified; for furnishing, operating, and supervising the use of this equipment , including fuel, repairs, attachments, and transportation of the equipment to and from the project ; and for furnishing all labor, tools, other equipment , and incidentals necessary to complete the work . The Contract unit price for the items Truck -Mounted Attenuator and Truck -Mounted Attenuator , AWV/PV shall also include all costs of furnishing the unit on which the attenuator is mounted . The costs of any spare changeable message signs will be considered incidental to Truck -Mounted Attenuator, AWV/PV.
6-34 Payment will be made under:
Pay Item Pay Unit 608.1001 Bulldozer Rental, Type I ................................ ................................ ........... Hour 608.1002 Bulldozer Rental, Type II ................................ ................................ ......... Hour 608.1500 Power Grader Rental ................................ ................................ ................. Hour 608.2501 All -Purpose Excavator Rental, Type I ................................ ...................... Hour 608.2502 All -Purpose Excavator Rental, Type II ................................ ..................... Hour 608.2601 Special Purpose Excavator Rental, Type I ................................ ................ Hour 608.3001 Power Broom Rental, Type I ................................ ................................ ....Hour 608.3002 Power Broom Rental, Type II ................................ ................................ ...Hour 608.3003 Power Broom Rental, Type III ................................ ................................ ..Hour 608.3700 Truck Rental ................................ ................................ .............................. Hour 608.4001 Loader Rental, Type I ................................ ................................ ............... Hour 608.4500 Truck -Mounted Attenuator ................................ ................................ .......Hour 608.5000 Truck -Mounted Attenuator, AWV/PV ................................ ..................... Hour
6-35 Sectio N 609 – Dust Control
609.0 1 DESCRIPTION . This work shall consist of treating traveled areas to control dust on the project . 609.0 2 MATERIALS . Materials shall meet the requirements of the following subsection s: Water ................................ ................................ ................................ .......................... 745.01 Calcium Chloride ................................ ................................ ................................ .......746.01 609.0 3 DUST CONTRO L WITH WATER . Water shall be applied to traveled areas as the Engineer may designate . The number of applications and the amount of water used shall be based upon field and weather conditions and as ordered in writing by the Engineer. The equipment for water application shall be equipped with an adequate shutoff valve control in the cab and shal l be approved by the Engineer . The equipment shall be available at all times in readiness to perform the work at any time, including Sundays and holiday s, upon written order of the Engineer. 609.0 4 DUST CONTRO L WITH CALCIU M CHLORIDE . Calcium chloride shall be applied in such a manner and by such devices that uniform distribution is obtained over the entire area on which it is ordered by the Engineer. Unless otherwise authorized in writing by the Engineer, calcium chloride shal l be applied at the rate of 1/2 pound per square yard for dust control . When used on granular surfaces on which bituminous material will be applied, the surface shall be reworked by grading or other means to ensure that the surface is sufficiently free of excess calcium chloride as determined by the Engineer. 609.0 5 METHO D OF MEASUREMENT . The quantity of Dust Control with Water to be measured for payment will be the number of thousands of gallons (MGAL) of water actually used in the complete and accepted work . The Contractor shall provide equipment meeting the approval of the Engineer for measuring the quantity of water applied. The quantity of Dust Control with Calcium Chloride to be measured for payment will be the number of tons of calcium chloride actually used in the complete and accepted work . When calcium chlorid e is delivered in bulk, the quantity will be determined from load ticket s.
Source: Vermont Standard Specifications for Construction, 2024 Edition. Pages 805–808 of 1,380.