SECTION 684 - POLE FOUNDATIONS
684.01 Description. In additional to the requirements set forth in Section 681, pole
foundations shall be cast-in-place reinforced concrete pilings or driven piling of types and sizes detailed on the plans.
684.02 Materials. Concrete for pole foundations shall be Class "B" structural concrete.
All reinforcement steel shall be in accordance with Section 711 of the Standard Specifications. The sizes for the reinforcement shall be as shown on the plans. Pilings will be in accordance with Section 719 of the Standard Specifications.
684.03 Construction Requirements. Pole foundations shall be constructed as per the
details on the plans, this specification and Section 803 of the Standard Specifications. Casings, as required, will be in accordance with Section 803 of the Standard Specifications. Structure excavation for foundations shall be opened vertically in accordance with Section 801 of the Standard Specifications. All reinforcement, conduits, and anchor bolts shall be set in place before any concrete is poured. Forming, casting, and curing shall be in accordance with Section 601 of the Standard Specifications. When the depth of a foundation is more than five feet, a tremie will be required during the placement of the concrete. When a tremie is used, it shall be in accordance with the requirements in Subsection 804.03.6.1. It may be necessary to used slip casing to keep the holes open. Casing will be required in portions of the holes that are not stable. Casings authorized by the Engineer shall be of suitable size and strength to accommodate the drilling equipment and to withstand ground- pressures and removal operations without deformation of the poured shaft. When removed, the casings shall revert to the Contractor for disposal.
684.04 Method of Measurement. Pole foundations of the size specified will be
measured by the cubic yard, which measurement shall be the area bounded by the vertical planes of the neat lines of the foundation. Slip casings will be measured by the linear foot from the ground elevation to the bottom of the strata needing to be cased. Piling will be measured by the linear foot from the bottom of the pile to the top of the pile.
684.05 Basis of Payment. Pole foundations, measured as prescribed above, will be paid
for at the contract unit price per cubic yard, which price shall include full compensation for concrete, structure excavation, and reinforc ing steel, for placing, vibrating, curing,
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