Article 1 — Description
Furnish and place treated or untreated timber piling.
Article 2 — Materials
Furnish timber piling in accordance with ASTM D25. Use any species of durable timber f or untreated piling that will satisfactorily stand driving. U se Southern pine impregnated with a preservative f or treated piling in accordance with Item 492, “Timber Preservative and Treatment,” or as shown on the plans. Furnish round piling in the lengths shown on the plans, with a minimum circumference of 38 in. for piling 40 ft. or less in length, and 41 in. for piling more than 40 ft. Measure the circumference under the bark at a section 3 ft. from the butt or at the tip. For treated timber piling, t reat cuts, bolt holes, and other areas where the surface of the piling is broken in accordance with Item 492.
2.1 Inspection . All piling is subject to inspection before and after treatment. Allow the I nspector free access to all
sites where materials are being produced or processed, and provide any assistance necessary for the proper inspection of materials.
2.2 Storing and Handling. Prevent excessive splitting, checking, warping, distortion, or any other damage that may cause the piling to be rejected. Handle all timber piling carefully without dropping, breaking outer fibers,
bruising, or penetrating the surface with tools.
Article 3 — Equipme Nt
Handle piling with rope slings. Use handling equipment that does not penetrate the treated shell into untreated wood.
Article 4 — Construction
Drive piling in accordance with Item 404, “Driving Piling.”
4.1 Splices, Build ups, and Cutoffs . Saw tops of all piling to a true plane as shown on the plans and at the
established elevation. Saw piling that supports timber caps or connects to other members to the exact plane of the connected member. Build up piling by splicing on an additional length of piling of the same diameter and quality when required. Make splices as shown on the plans or as directed. Construct the splice after the pile head and the lower end of the buildup section have been squared up and treated in accordance with Section 406.4.2., “Treatment of Pile Ends. ” Use no more than one splice in any single pile.
4.2 Treatment of Pile Ends.
4.2.1 Treated Timber . Give the ends of piling three coats of a preservative determined appropriate for the original
preservative in accordance with AWPA Standard M4 after cutting. Follow w ith one coat of coal -tar roofing cement in accordance with ASTM D5643. 486 4.2.2. Untreated Timber . Coat the heads of piling thoroughly with a thick protective coat of hot tar or hot asphaltum. Cover the pile heads after treatment with a sheet of 20- gauge galvanized metal when shown on the plans. Provide a cover that overlaps the sides of the piling at least 3 in. Bend the cover down over the piling and fasten it with large- headed galvanized nails or as shown on the plans.
Article 5 — Measurement
5.1 Timber Piling . Timber piling will be measured by the foot of acceptable piling in place after all cutoffs and
splices have been made. When the Contractor elects to drive piling deeper than required to meet the specified length and bearing requirements, no measurement will be made on that portion below the elevation at which length and bearing requirements were first obtained.
5.2 Splices . Splices will be measured by each authorized, completed splice made necessary by driving beyond
the plan pile length to obtain required bearing resistance. No measurement will be made for a splice made necessary by unsuitable material, handling, driving, or overdriving.
5.3 Cutoffs . Cutoffs will be measured by the foot of cutoff above required grade. No cutoff will be measured on
any pile that is built up.
Article 6 — Payment
The unit price bid is full compensation for jetting, pilot holes, alignment holes, driving piling, repairs, materials, equipment, tools, labor, and incidentals.
6.1 Timber Piling . The work performed and materials furnished in accordance with this Item and measured as
provided under “Measurement” will be paid for at the unit price bid for “Treated Timber Piling” or “Untreated Timber Piling.”
6.2 Splices . An additional payment for each authorized, completed splice, regardless of buildup length, will be
made at a price equal t o four times the unit price bid for “Treated Timber Piling” or “Untreated Timber Piling.” Where piling is trimmed back for the purpose of constructing a splice, payment for the cutoff is included in the payment for the splice.
6.3 Cutoffs . Payment for cutoff l engths will be made at a price equal to 1/2 the unit price bid for “Treated Timber
Piling” or “Untreated Timber Piling.”