Article 1 — Description
1.1 Installation . Fabricate, furnish, and install steel traffic signal pole assemblies .
1.2 Relocation . Remove and relocate existing steel traffic signal pole assemblies .
1.3 Removal . Remove existing steel traffic signal pole assemblies .
Article 2 — Materials
Provide new materials as shown on the plans and in accordance with this Item and the the following Items . Item 416, “Drilled Shaft Foundations” Item 421, “Hydraulic Cement Concrete” Item 441, “Steel Structures” Item 442, “Metal for Structures” Item 445, “Galvanizing” Item 449, “Anchor Bolts” Furnish alloy steel or medium- strength mild steel anchor bolts in accordance with Section 449.2.1., “Bolts and Nuts,” unless otherwise shown on the plans.
Article 3 — Construction
3.1 Standard Design . Fabricate pole assemblies in accordance with this Item to the designs shown on the
plans. Alternate designs are not acceptable. Deviations that affect the basic structural behavior of the pole are considered alternate designs. For deviations that do not affect the basic structural behavior of the pole, electronically submit shop drawings in accordance with Item 441 to the Bridge Division for approval.
3.2 Fabrication . Fabricate and weld in accordance with Item 441, AWS D1.1 and this Item. Fabrication
tolerances are shown in Table 1. 939 Table 1 Fabrication Tolerances Part Dimension Tolerance (in.) Pole and mast arm shaft Length ±1 Thickness +0.12 , -0.02 Difference between flats or diameter ±3/16 Straightness 1/8 in 10 ft. Attachment locations ±1 Base and mast arm mounting plates Overall ±3/16 Thickness +1/4, -0 Deviations from flat1 3/16 in 24 in. Spacing between holes ±1/8 Bolt hole size ±1/16 Anchor bolts Length ±1/2 Threaded length ±1/2 Galvanized length -1/4 Assembled shafts Angular orientation 1/16 in 12 in.2 Centering ±3/16 Twist 3° in 50 ft. 1. For long mast arm assembly (LMA) structures, refer to plan sheets for mast arm mounting plate tolerance. 2. 1/8 in 12 in. between mounting plates and between mounting plates and base plates. Fabrication plants that produce steel traffic signal pole assemblies must be approved in accordance with DMS -7380 , “Steel Non- Bridge Member Fabrication Plant Qualification.” The Department maintains an MPL of approved traffic signal pole assembly fabrication plants. Provide properly fitting components. Provide round or octagonal shafts for poles and mast arms tapered as shown on the plans. Fabricate mast arms straight in the unloaded condition unless otherwise shown on the plans. The Department will accept bolted slip joints overlapping by at least 1.5 diameters in mast arms 40 ft. and longer. Provide circumferential welds only at the ends of the shafts. Provide no more than two longitudinal seam welds in shaft sections. Provide 100% penetration within 6 in. of circumferential base welds and 60% minimum penetration at other locations along the longitudinal seam welds. Provide longitudinal seam weld and fit -up that will minimize acid entrapment during later galvanizing. For LMA structures, perform at least 10% ultrasonic testing (UT) of longitudinal seam welds on the arm and pole shafts. Use a Department -approved UT procedure to ensure 60% minimum penetration where specified. Perform testing at a minimum of three locations on each shaft (at both ends and middle). The minimum length of each test area must be 10 in. If minimum penetration is not achieved in any of the tested areas, test an additional 24 in. beyond the originally selected test areas requiring 60% penetration. Test the entire arm or pole shaft seam weld if any locations within the additional 24- in. test areas do not achieve 60% penetration. Repair the deficient areas using a Department -approved repair procedure and retest. Hot-dip galvanize all fabricated parts in accordance with Item 445. Provide punched, drilled, or mechanically guided thermal -cut holes in steel parts or members, when allowed, before galvanizing. Mechanically guided thermal - cut hole quality will be in accordance with Item 445. Connect the luminaire arm to the pole using simplex fittings. Ensure the fittings have no defects affecting strength or appearance. Permanently mark, at a visible location when erected, pole base plates and mast arm mounting plates with the design wind speed. Permanently mark, at a visible location when erected, pole base plates and fixed mast arm mounting plates with the fabrication plant’s insignia. Place the mark on the pole base plate adjacent to the hand- hole access compartment. 940 Deliver each traffic signal pole assembly with fittings and hardware either installed or packaged with its associated components.
3.3 Installation . Locate traffic signal pole assemblies as shown on the plans , unless otherwise directed, to
secure a more desirable location or avoid conflict with utilities. Stake the traffic signal pole assembly locations for verification by the Engineer. Use established industry and utility safety practices when working near overhead or underground utilities. Consult with the appropriate utility before beginning work. Construct foundations for new traffic signal pole assemblies in accordance with Item 416 and as shown on the plans. Orient anchor bolts as shown on the plans. Erect structures after foundation concrete has attained its design strength as shown on the plans and in accordance with Item 421. Coat anchor bolt threads and tighten anchor bolts in accordance with Item 449. After the traffic signal pole assembly is plumb and all nuts are tight, tack weld each anchor bolt nut in two places to its washer. Tack weld each washer to the base plate in two places. Never weld components to the bolt. Tack weld in accordance with Item 441. After tack welding, repair galvanizing damage on bolts, nuts, and washers in accordance with Section 445.3. 4., “Repairs.” Do not grout between the base plate and the foundation.
3.4 Relocation . Disconnect and isolate traffic signal cables before removing the pole. Remove existing traffic
signal pole assemblies as directed. Ensure the poles or attached components suffer no undue stress or damage. Signs, signal heads, mounting brackets, and luminaires may be left on the poles. Repair or replace damaged components as directed. Remove abandoned concrete foundations, including steel, to a point 2 ft. below final grade unless otherwise shown on the plans. Cut off and remove steel protruding from the remaining concrete. Backfill the hole with materials equal in composition and density to the surrounding area. Replace surfacing material with similar material to an equivalent condition. Move existing pole assemblies to locations shown on the plans or as directed. Construct foundations for relocated traffic signal pole assemblies in accordance with Item 416 and as shown on the plans. Install existing pole assemblies on new foundations in accordance with Section 686.3.3., “Installation.” Accept ownership and dispose of unsalvageable materials in conformance with federal, state, and local regulations.
3.5 Removal . Disconnect and isolate traffic signal cables before removing the pole. Remove existing traffic
signal pole assemblies as shown on the plans or as directed. Ensure the poles or attached components that are salvaged suffer no undue stress or damage. Remove abandoned concrete foundations, including steel, to a point 2 ft. below final grade unless otherwise shown on the plans or as directed. Cut off and remove steel protruding from the remaining concrete. Backfill the hole with materials equal in composition and density to the surrounding area. Replace surfacing material with similar material to an equivalent condition.
Article 4 — Measurement
This Item will be measured by each traffic signal pole assembly installed, relocated, or removed. 941 5. PAYMENT 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 “Install Traffic Signal Pole Assemblies” of the types and sizes specified, “Relocate Traffic Signal Pole Assemblies” of the types specified, or “Remove Traffic Signal Pole Assemblies” of the types specified. New drilled shaft foundations will be paid for under Item 416.
5.1 Installation . This price is full compensation for furnishing, fabricating, galvanizing, assembling, and erecting
the pole upon a foundation; furnishing and erecting required mast arms and luminaire arms; furnishing and placing anchor bolts, nuts, washers, and templates; and materials, equipment, labor, tools, and incidentals.
5.2 Relocation . This p rice is full compensation for removing traffic signal pole assemblies; removing existing
foundations; backfilling and surface placement; storing the components to be reused or salvaged; furnishing, fabricating, and installing required new components including anchor bolts, nuts, washers, and templates; placing and securing traffic signal pole assemblies on new foundations; furnishing and placing conduit, ground rods, and wiring; dispos ing of unsalvageable materials; loading and hauling; and materials, equipment, labor, tools, and incidentals.
5.3 Removal . This price is full compensation for removing, salvaging, disassembling, and stockpiling signal pole
assemblies; salvaging and relocating existing conduit; removing existing foundations; backfilling and surface placement; splicing existing conductors; disposing of unsalvageable materials; and materials, equipment, labor, tools, and incidentals.