620.01 620-1 SECTION 620 FIELD FACILITIES DESCRIPTION
620.01 The Contractor shall furnish field offices, sanitary facilities and field laboratories when
called for on the plans or as directed. These units are to be maintained by the Contractor and shall be removed when the project is completed unless released earlier by the Engin eer. MATERIALS
620.02 Field Offices . Field offices, either Class 1 or Class 2 as designated on the plans, shall
substantially conform to the details shown on the plans and to the requirements of this section. The field office shall be equipped with a facsimile machine, copy machine, and telephone service that conform to the following:
1.Facsimile Machine. The facsimile machine shall print on plain paper and shall be capable of sending 8 1/2 x 11-inch and 8 1/2 x 14-inch documents. The Contractor shall install and maintain the fax machine in the Engineer ’s field office. Should the fax require repair and be out of service for more than 24 hours, a replacement machine shall be supplied within 24 hours. The Contractor shall supply all necessary supplies, except paper, and a roll- around stand. Paper will b e provided by the Department .
2.Copy Machine. The Contractor shall provide a self -feeding plain paper photocopier , capable of making at least eight copies per minute. Copier shall also be capable of reproducing copies at standard sizes up to and including 11 x 17 inches. The copier shall be capable of reducing 11 x 17 plan sheets to 8 1/2 x 14 legal size and to 8 1/2 x 11 letter size. The Contractor shall supply all necessary supplies, except paper, and a roll- around stand. Paper will be provided by the Department. The Contractor shall maintain all furnished equipment in good working condition and shall provide replacement equipment due to breakage, damage, or theft within five workdays .
3.Telephone Service. The Contractor shall provide telephone service as required by standard plans. This service shall include a long -distance carrier. The Department will be responsible for actual long distance toll charges.
620.03 Field Laboratories . Field laboratories, either Class 1 or Class 2 as designated on the
plans, shall substantially conform to the details shown on the plans and to the requirements of this section. Each laboratory shall be qualified per CP 10.
620.04 Commercial Plant Laboratory. The plant laboratory at the site of the commercial hot
mix plant shall consist of weatherproof, insulated, mobile house- type trailer or other approved structure having equipment meeting the following minimum requirements. 620.05 620- 2 Each laboratory shall be qualified per CP 10.
1.Outside Dimensions: 28 feet long x 12 feet wide if a separate facility is provided, or inside area of 175 square feet with a minimum width of 7 feet when not a separate facility.
2.Drinking Water Supply: Dispensed from an acceptable water -cooling device.
3.Testing Water Supply: 100 gallons, insulated and pressurized by pump, minimum 30 psi delivery pressure.
4.Shelving: 24 linear feet
5.Sink: One, with faucet
6.Fire Extinguisher: One, non -toxic, dry chemical, meeting Underwriters Laboratories, Inc. (UL) approval for 10 -pound class ABC with 20 BC rating
7.Work Bench: 19 feet x 30 inches x 36 inches high
8.Lighting: Adequate fluorescent lighting directly over all work bench and desk areas
9.Range: One, 30- inch free standing, oven with reinforced racks, and four surface burners
10.Forced Air Convection Oven: Rated at least 1 ,500 watts.
11.Sieve Shaker: One, motor -driven, standard portable, capable of handling a set of 8 inch or 12-inch US standard sieves, mounted 24 inches above floor in a soundproof, insulated enclosure having hinged openings.
12.Heating: Furnace, 200 BTU per square foot, minimum, forced air type
13.Telephone: Minimum flat rate service from nearest exchange
14.Air Conditioner: Adequate for laboratory size
15.Furniture: Desk with at least one drawer. One desk chair with rollers. One stool with height compatible with work bench
16.Electronic Balance: Balance complying with AASHTO M 231 capable of weighing at least 35 pounds to an accuracy of 0.2 gram.
17.Recording Thermometer: Electrical or mechanical thermometer for curing tanks
18.Microwave Oven: One, 1.5 cubic foot, with at least five power levels, and revolving floor or rotating power source
620.05 Sanitary Facilities. Sanitary facilities shall consist of a portable chemical toilet
fabricated from steel, fiberglass or wood, meeting the following minimum requirements: Each facility shall be well ventilated, conform to State law, have a vented chemical tank , and a separate urinal. CONSTRUCTION REQUIREMENTS
620.06 The Contractor shall furnish a suitable site for field facilities. The site may be
located within the right of way with approval of the Engineer . If located within the right of way, the Contractor shall be responsible for restoring the area. Facilities shall be on the project, leveled and ready for use before the start of any operations . Facilities shall be for the exclusive use of Department personnel. 620.07 620-3 Sanitary facilities shall be placed at least 50 feet from the nearest State Water , in locations accessible for servicing, and not in low -lying areas subject to ponding. They shall be anchored to prevent movement or overturning. The Contractor shall provide replacement equipment due to breakdown, damage, or theft within five workdays .
620.07 Maintenance, Service and Utilities. The Contractor shall furnish the following:
Table 620 -1 MAINTENANCE, SERVICE AND UTILITIES FURNISHED BY CONTRACTOR Fuel Adequate supply for heating and testing operations. Electricity A 3,000 watt, 115 -125-volt AC facility for each field office and field laboratory. Independent generators shall be provided where commercial power is not available. Telephone Minimum flat rate services from nearest exchange for each field office and field laboratory, as directed. Sanitary Sanitary facilities shall be serviced and maintained in a sanitary condition. Trash The Contractor shall provide and maintain suitable containers and shall haul away as necessary. METHOD OF MEASUREMENT AND BASIS OF PAYMENT
620.08 The various facilities complete with utilities, will be measured and paid for at the
contract unit price for each of the pay items listed below that appear in the bid schedule. Payment will be made under: Pay Item Pay Unit Field Office (Class______) Each Sanitary Facility Each Field Laboratory (Class______) Each Payment will be full compensation for Field Laboratory (Class1) or (Class 2), including all appurtenant items specified in the Contract. Restoration of the field facility areas will not be paid for separately but shall be included in the cost of the item. 620.08 620- 4 THIS PAGE INTENTIONALLY LEFT BLANK 622.01 622-1 SECTION 622 REST AREAS AND BUILDINGS DESCRIPTION
622.01 This work consists of the construction of various facilities in rest areas and other areas
per these specifications and in conformity to the lines, grades, dimensions and details shown on the plans or established. When information shown on the plans are of general arrangements only, the Engineer will establish exact locations, measurements, levels, etc., at the site to adapt the work to suit actual conditions. MATERIALS
622.02 All materials used in the construction shall conform to the requirements of Section 717
and to the details shown on the plans or established.
622.03 Shop Drawings and Descriptive Brochures. At the Pre -construction Conference, the
Contractor shall submit to the Department five copies of shop drawings or descriptive brochures for all materials and equipment to be incorporated in the work for review by the Engineer . All work where shop drawings or descriptive brochures are required must be performed per such drawings, and work on the item shall not be started until review of said drawings. All shop drawings or descriptive brochures must be complete in every respect, numbered consecutively, have the name of the project printed thereon, and each transmittal must be accompanied by a letter directing the Engineer ’s attention to any changes from the plans. After shop drawings and descriptive brochures have been reviewed, any portion of the work covered by the shop drawings that modify the plans shall be rejected as soon as such modification is discovered unless said modification has been specifically pointed out to the Engineer review. The review of such shop drawings and descriptive brochures will be general in character and shall not relieve the Contractor from responsibility for their accuracy or for proper fitting and construction of the work, or from the necessity of furnishing any materials and workmanship required by the Contract, which may not be indicated on shop drawings when reviewed.
622.04 Construction Material. Structure excavation and structure backfill shall conform to
the requirements of Section 206. Treated timber shall conform to the requirements of Section 508. Concrete shall be Class “B” and conform to the requirements of Section 601. Reinforcing steel and fabric shall conform to the requirements of Section 602. CONSTRUCTION REQUIREMENTS
622.05 Services of Factory Representative. It is important that the Department be protected
as far as possible against the discontinuance of the make of equipment to be purchased, and that repair parts and the services of expert factory representatives be available if desired. Under these conditions the Contractor shall not furnish equipment made by firms in the hands of receivers.
Source: Colorado Standard Specifications for Road and Bridge Construction, 2023 Edition. Pages 733–736 of 943.