Art. 837.03 Breakaway Devices A permanent, concrete work pad shall be constructed as shown on the plans. This 36 x 36 x 8 in. (900 x 900 x 200 mm) pad shall be centered in front of the handhole and finished level. After installation of cable, voids within the wiring window shall be filled with fine aggregate. Concrete shall be cured before light towers are installed.
837.04 Method of Measurement. This work 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.
837.05 Basis of Payment. This work will be paid for at the contract unit price
per foot (meter) for LIGHT TOWER FOUNDATION of the diameter specified. Excavation in rock will be paid for according to Article 502.13. Obstruction mitigation or abandoned foundation excavations and backfill will be paid for according to Article 109.04. SECTION 838. BREAKAWAY DEVICES
838.01 Description. This work shall consist of furnishing and installing a
breakaway device on a pole foundation.
838.02 Materials. Materials shall be according to the following.
Item Article/Section
a.Breakaway Devices ........................................................................... 1070.04 CONSTRUCTION REQUIRMENTS
838.03 Installation. All entryway points created by the use of breakaway
devices shall be permanently and completely sealed against rodent entry. This includes the pole base plate and foundation plate openings, elongated holes for anchor rods, the opening below the pole base plate, and the wiring windows in both steel and concrete foundations. Where breakaway couplings are used in conjunction with steel foundations, the Contractor shall match the plate sizes in order to seal out rodents between the foundation and pole base. Breakaway devices are not allowed on bridge parapets, barrier walls, or pedestrian conflict areas, and are not required behind guardrail. The Contractor shall verify that the loading of the pole, arm(s), luminaire(s), and appurtenances does not exceed the capacity of the breakaway device.
a.Transformer Base. The transformer base shall be installed level and flush with the foundation without the use of leveling washers or shims according to the manufacturer’s installation procedures. The anchor bolts shall be Temporary Lighting Removal Art. 841.02 inserted full depth into the slotted holes of the transformer base. The transformer base shall be installed with access door aligned with light pole handhole. All nuts, bolts, washers, and lock washers required to complete the installation of the transformer base shall be included.
b.Breakaway Couplings. The breakaway couplings shall be coordinated to match anchor rod size. The breakaway coupling shall be installed on the anchor rod according to the manufacturer’s recommendations. When used with a metal foundation, a nut shall be installed under the foundation plate on the stud bolt to prevent it from backing out of the breakaway coupling. The coupling installation shall not be used to level the pole base in lieu of a level foundation. The screen shall be tied back on itself and secured with stainless steel wire ties. The screen shall fit tightly and shall completely fill all openings including the voids in the bottom of the pole base.
838.04 Method of Measurement. Transformer bases used for breakaway
devices will be measured for payment as each, for each transformer base used. Breakaway couplings used for breakaway devices will be measured for payment as each, for each individual coupling used, not as a set of four.
838.05 Basis of Payment. This work will be paid for at the contract unit price
per each for BREAKAWAY DEVICE, TRANSFORMER BASE, of the bolt circle indicated; or BREAKAWAY DEVICE, COUPLING WITH ALUMINUM SKIRT OVER STAINLESS STEEL SCREEN, or COUPLING WITH STAINLESS STEEL SCREEN. REMOVAL, RELOCATION, AND TEMPORARY LIGHTING SECTION 841. TEMPORARY LIGHTING REMOVAL
841.01 Description. This work shall consist of the disconnection and removal
of the temporary lighting system. CONSTRUCTION REQUIREMENTS
841.02 Removal. Removal shall include the removal of temporary poles
(which may be wood, concrete, steel, or aluminum), aerial cable, and all associated apparatus and connections. This removal shall also include removal of all wiring and connections to the associated lighting controller. All equipment and material, except for luminaires removed as part of this item, shall become property of the Contractor and shall be removed from the site. All luminaires will be inspected by the Engineer. Non-operating or damaged luminaires shall be repaired or replaced in kind.
Referenced in this section
Sections that cite this one
BREAKAWAY DEVICES in other states
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Source: Illinois Standard Specifications for Road and Bridge Construction, 2022 Edition. Pages 729–730 of 1,217. View official source ↗