Art. 877.03 Traffic Signal Concrete Foundation
877.03 Installation. The components of a mast arm assembly and pole shall
be assembled and erected according to the details shown on the plans. The pole shall be erected vertically on a concrete foundation. The Contractor shall furnish and install the required nuts and washers for mounting and plumbing the pole on the anchor rods. After the entire assembly has been aligned and plumbed, a Type 304 stainless steel mesh 1/4 in. (6 mm) maximum opening with a minimum wire diameter AWG No. 16 (1.5 mm) shall be stainless steel banded to the anchor rods with a minimum 2 in. (50 mm) lap to enclose the void between the mast arm base plate and the concrete foundation. The pole shall be grounded according to Section 806. The Contractor shall take precautions to avoid scratching the galvanized coating on the mast arm pole and assembly during the transportation and erection. If it is scratched, the Contractor shall repair the galvanized coating according to ASTM A 780 and the manufacturer’s recommendations. The Contractor shall apply an anti-seize paste compound on all nuts and bolts prior to assembly.
877.04 Basis of Payment. This work will be paid for at the contract unit price
per each for STEEL MAST ARM ASSEMBLY AND POLE or STEEL COMBINATION MAST ARM ASSEMBLY AND POLE, of the signal arm length specified. SECTION 878. TRAFFIC SIGNAL CONCRETE FOUNDATION
878.01 Description. This work shall consist of constructing a concrete
foundation for a traffic signal post, controller base, or mast arm pole.
878.02 Materials. Materials shall be according to the following.
Item Article/Section
a.Portland Cement Concrete ..................................................................... 1020
b.Reinforcement Bars ....................................................................... 1006.10(a)
c.Anchor Rods ...................................................................................... 1006.09 CONSTRUCTION REQUIREMENTS
878.03 Installation. Construction requirements for reinforcement shall be
according to Section 508. The top of the foundation shall be finished level. Shimming of the appurtenance to be attached will not be permitted. A form extending a minimum of 9 in. (225 mm) and a maximum of 24 in. (600 mm) below the top surface of the foundation is required. The form shall be set level, and means shall be provided for holding it rigidly in place while the concrete is being deposited. The form shall remain undisturbed for at least 24 hours after the concrete has been poured. Where a concrete foundation is contiguous to a sidewalk, preformed joint filler of 1/2 in. (13 mm) thickness shall be placed between the foundation and the sidewalk. All raceways in the foundation shall be installed rigidly in place before concrete is deposited in the form. Bushings shall be provided at the ends of conduit. Anchor rods and ground rod shall be set in place before the concrete is deposited by means of a template constructed to space the anchor rods according to the pattern of the bolt holes in the base of the appurtenance to be attached. Drill Existing Foundation or Handhole Art. 879.03 Grounding electrodes shall be according to Section 806.
a.Square or Rectangular Foundations. Whenever the excavation is irregular, a form shall be used to provide the proper dimension of the entire foundation below the ground surface.
b.Drilled Shaft Foundations. Drilled shaft foundations shall be constructed according to Section 516 and the following. The submittal requirements as stated in Article 516.04 shall not apply and the entire length of the drilled shaft shall be vibrated. Concrete shall be cured before poles are installed.
878.04 Method of Measurement. The foundation will be measured for
payment in feet (meters) in place. The length measured will be limited to that shown on the plans or authorized by the Engineer. Excavation in rock will be measured for payment according to Article 502.12.
878.05 Basis of Payment. This work will be paid for at the contract unit price
per foot (meter) of depth of CONCRETE FOUNDATION, of the type specified. Excavation in rock will be paid for according to Article 502.13. Obstruction mitigation will be paid for according to Article 109.04. SECTION 879. DRILL EXISTING FOUNDATION OR HANDHOLE
879.01 Description. This work shall consist of drilling a hole in an existing
concrete foundation or handhole and for furnishing and installing a new conduit. CONSTRUCTION REQUIREMENTS
879.02 General. The size of the hole shall be the minimum size that allows
the specified conduit. A bushing shall be provided at the end of the conduit. The space between the conduit and the foundation shall be sealed with a waterproof caulk.
879.03 Basis of Payment. This work will be paid for at the contract unit price
per each for DRILL EXISTING FOUNDATION or DRILL EXISTING HANDHOLE, which price shall include all necessary excavation and backfilling outside of the foundation or handhole.
Referenced in this section
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Source: Illinois Standard Specifications for Road and Bridge Construction, 2022 Edition. Pages 753–754 of 1,217. View official source ↗