6-119
639.10 Method of Measurement Field office will be measured by the unit or lump sum
for each building provided, equipped and maintained satisfactor ily.
639.11 Basis of Payment The accepted quantity of field office will be paid for at the
contract unit price each or lump sum which payment shall be ful l compensation for furnishing until contract completion, erecting, equipping, main taining, furnishing electricity, heating, installing and maintaining toilet facilities and if ne cessary removing the buildings or office trailers. Payment for these items will be made in 3 parts; the first paym ent of ½ to be made after the Contractor has supplied the building or office trailer and it has been approved. The remaining payments shall be made at intervals as follows: A second payment of ¼ shall be made when one-half of the antici pated work has been completed. The final payment of the rem aining ¼ shall be made upon complet ion of the work. Payment will be made under: Pay Item P a y U n i t
639.18 Field Office, Type A Each
639.19 Field Office, Type B Each
639.20 Field Office, Type C Each
SECTION 640 - VACANT SECTION 641 - REST AREA FACILITIES Reserved SECTION 642 - STEPS
642.01 Description This work shall consist of the constructio n of wooden steps,
precast concrete steps or cast-in-place concrete steps in accor dance with these specifications and in reasonably close conformity with dimensions and designs shown on the plans.
642.02 Materials Materials for the steps shall meet the requi rements as specified in
the following Sections of Division 700 - Materials: Exterior Ready Mixed Paint 708.01 T i m b e r P r e s e r v a t i v e 708.05 Precast Concrete Units 712.06 6-120 Wood shall be well-seasoned spruce or pine, Number 1 dimension lumber. Nails and hardware shall be galvanized. Precast concrete steps shall conform to the specifications of precast units except as modified herein and shall be of the dimensions detailed on the plans or as otherwise approved. Exposed surfaces shall have a rubbed finish as speci fied in Section 502.14-d-2. Cast-in-place concrete steps, shall conform to the requirement s of Section 502 - Structural Concrete, Class A.
642.03 Wooden Steps Wooden steps shall be fabricated and fast ened in accordance
with standard commercial building practices. After members have been cut to size, the ends shall be soaked in an approved timber preservative. Before assembling the steps, all contact surface s shall be painted 2 coats of paint, color to be designated. The first coat of paint shall b e thinned.
642.04 Precast Concrete Steps Precast concrete steps shall be placed on a
compacted gravel bed with horizontal joints level and vertical joints plumb. The foundation shall be prepared in advance of setting the steps by grading an d compacting the aggregate subbase to the proper elevation. The steps shall be set with a uniform tread width to match the finish grade of the slope. All remaining excavated areas s urrounding the steps shall be filled to the required grade with approved materials and thorou ghly tamped.
642.05 Cast-in-place Concrete Steps Cast-in-place concrete st eps shall conform to
the applicable requirements of Section 502 - Structural Concret e.
642.06 Method of Measurement Wooden steps and precast Portlan d cement
concrete steps will be measured by each unit, complete in place and accepted. Cast-in-place concrete steps will be measured for payment by t he cubic yard in place.
642.07 Basis of Payment The accepted wooden steps will be pai d for at the contract
unit price each, complete and accepted in place which price sha ll be full compensation for furnishing all materials, labor and other incidentals necessary to complete the work. The accepted quantity of precast concrete steps will be paid f or at the contract unit price each, complete in place, which price shall be full compen sation for furnishing and placing all materials including reinforcing steel. Excavation and backfill will be measured and paid for as provi ded in Section 206 - Structural Excavation. 6-121 The accepted quantity for cast-in-place concrete steps will be paid for at the unit contract price per cubic yard c omplete in place which price sha ll be full compensation for furnishing and placing all materials including reinforcing stee l. Payment will be made under: P a y I t e m P a y U n i t
642.12 Wooden Steps Each
642.15 Precast Concrete Steps Each
642.17 Cast-in-place Concrete Steps C u b i c Y a r d
SECTION 643 - TRAFFIC SIGNALS
643.01 Description This work shall consist of furnishing and i nstalling all equipment
necessary for the erection a nd operation of a traffic signal, i ncluding traffic signal structures, flashing beacon, temporary traffic signal or modification of a traffic signal, all in reasonably close conformity with the plans.
643.02 General All equipment shall be new unless otherwise spe cified. Requests for
substitution of any specified material shall be submitted in wr iting with all documentation (specifications, mill certifications, etc.) in order to enable the Department to evaluate the proposal. Substitutes for specified material may be accepted u pon approval by the Fabrication Engineer. Functionally, any substitute shall give equal or better service than the specified material. Existing signal equipment to be used shall be cleaned, repainted, and reconditioned as noted on the plans. All equipment, installati on of equipment and other incidental work shall conform to the latest applicable provisio ns of: NEC, MUTCD, NESC, NEMA, and the ITE Standards for traffic control equipment. All work shall be done to the satisfaction of the Resident. The meaning of specific terms sh all be as defined in MUTCD, NESC, and the ITE Standards for traffic control equipment. 643.021 Materials Material shall meet the requirements specifi ed in the following Sections of Division 700 - Materials: Steel Conduit 715.02 Non-metallic Conduit 715.03 Prewired Conduit 715.04 Metallic Junction and Fuse Box 715.05 Secondary Wiring 715.07 Vehicular Signal Indications 718.01 Pedestrian Signal Indications 718.02 S i g n a l M o u n t i n g 718.03 Vehicular Loop Detectors 718.04 M i c r o w a v e D e t e c t o r s 718.05