679
6-352SECTIO N 679 – STREE T LIGHTING
679.0 1 DESCRIPTION . This work shall consist of removing, furnishing, and installing the street lighting components and other illumination elements necessary to provide a complete and operational system. Street light assemblies shall consist of light pole foundations, transformer bases, light poles, bracket arms and luminaires. 679.0 2 MATERIALS . Materials shall meet the requirements of the following subsections: Anchor Bolts for Traffic Signals, Lighting and Overhead Signs ............................... 714.09 Grounding Electrodes ................................ ................................ ................................ 752.1 1 Light Pole Foundations ................................ ................................ .............................. 753.01 Transformer Bases ................................ ................................ ................................ .....753.02 Light Poles ................................ ................................ ................................ ................. 753.03 Bracket Arms, Aluminum ................................ ................................ .......................... 753.04(a) Bracket Arms, Steel ................................ ................................ ................................ ...753.04(b) Luminaires ................................ ................................ ................................ ................. 753.05 Highway Illumination Conductor Cable ................................ ................................ ....753.06 Finish of Highway Illumination Components ................................ ............................ 753.07 679.0 3 GENERAL REQUIREMENTS . Street lights shall be installed as specified in the Contract. Street lights shall be designed to withstand a 100 mph wind load with an allowable angular deflection of 70 arc minutes or less. Street lighting design shall conform to the AASHTO Standard Specifications for the Structural Supports for Highway Signs, Luminaires , and Traffic Signals . All wiring shall meet the requirements of the National Electrical Code . 679.0 4 SUBMITTALS . The Contractor shall submit fabrication drawings in accordance with Subsection 105.0 6. The submittal shall contain the following information, at a minimum:
to the light pole foundation .
be supplied .
679 6-353 (c) Transformer Bases .
base door dimensions, bolt pattern for mounting the transformer base to the light pole foundation and type of transformer base. The submittal shall i nclude documentation indicating the transformer base meets the AASHTO standards.
transformer base .
(size and location), anchor base, bolt circle, and mounting bolt size .
circumferent ial welds, one attaching the top of the anchor base to the pole shaft and the other attaching the bottom of the pole shaft to the inside of the shoe base .
pole material on which the arm is to be mounted .
fabrication drawings where shown .
679 6-354 (g) Luminaires .
included in the Plans or when changes to the Plans are proposed
679.0 5 BRACKE T ARM. Bracket arms shall be free of defects and burrs. Bracket arms shall be able to withstand a vertical load of 100 pounds and a horizontal load of 50 pounds without fracture or permanent deformation and shall be installed as shown in the Contract. Bracket arms installed on aluminum posts shall be in accordance with Subsection 753.04(a) . Bracket arms installed on steel or wood posts shall be in accordance with Subsection 753.04(b) . The length and mounting height of bracket arms shall be as shown on the approved drawings. The bracket arm shall be mounted perpendicular to the centerline of roadway, unless otherwise specified. The bracket arm shall be provided with a 2 -inch slip -fit mounting of sufficient length to accommodate the luminaire. All welds shall conform to the requirements of Subsection 506.10 . No field welds will be allowed .
679 6-355 679.0 6 LUMINAIRE . Luminaires shall meet the requirements of the Vermont Agency of Transportation Lighting Design Guide unless oth erwise specified on the Plans. 679.0 7 STREE T LIGHT ASSEMBLY . Street light assemblies shall be installed as shown in the Contract and shall include the following:
Excavation and backfill shall be in accordance with Section 203 .
Contract. The botto m plate of the transformer base shall have a grounding bolt and nut, easily accessible from the transformer base door. Transformer bases, and all wiring contained in the transformer bases, shall meet the requirements of the AASHTO Standard Specifications for Structural Supports for Highway Signs, Luminaires, and Traffic Signals for breakaway features.
The anchor base shall be attached to the light pole shaft by two continuous welds, one inside the base at the end of the shaft and the other on the outside at the top of the anchor base. All welds shall conform to the requirements of Subsection 506.10 . No field welding shall be allowed. Light poles shall be plumb and le vel. A 4 inch × 6 inch handhole, complete with cover and hardware , shall be located approximately 18 inches above the top of the transformer base directly above the transformer base door. A lip shall be provided around the handhole opening to prevent the c over from tipping and falling inside the hole. A grounding bolt and nut, easily accessible from the handhole, shall be located inside the light pole shaft. The light pole cap shall be securely held in place.
679.0 8 ERECTIO N OF LIGHT POLES . All light poles shall be erected on concrete bases at the locations shown on the Plans. In the erection of light poles, leveling nuts shall be provided for installation between the bases and the foundation to aid in plumbing.
679
6-356Anchor bolts shall be tightened in accordance with Subsection 677.03
Where aluminum alloys come in contact with other materials, the contacting surfaces shall be separated with a fabric pad 1/8 inch in thickness or cleaned and thoroughly coated with an aluminum filled silicone sealant . 679.0 9 REMOV E STREE T LIGHT ASSEMBLY . The Contactor shall remove the entire street light assembly as identified in the Plans, including the light pole foundation, transformer base, light pole, bracket arm, luminaire, wiring and all other incidentals. The street light assembly shall become property of the Contractor. All components of the street light assembly shall be removed fro m the project and properly disposed of by the Contractor. All voids resulting from this work shall be backfilled in accordance with Section 203 . 679.1 0 REMOV E AND RESET LIGHT POLE . The Contractor shall remove, store, and reset the transformer base, light pole, bracket arm, luminaire, wiring, and other incidentals as shown in the Plans. All light poles shall be carefully separated from the light pole foundation on which they are mounted. Light poles shall be completely removed from the light pole foundation , transported, and stored at locations specified in the Contract or as ordered by the Engineer and reset on the light pole foundation at the original location. 679.1 1 REMOV E AND RESET PRIVAT E LIGHT ASSEMBLY . The Contractor shall coordinate all light removal and relocation activities with the property owners, and as directed by the Engineer, and shall lock out breakers and panels as needed to safely perform the work. Care shall be taken in the removal and handling of the lights and appurtenances during relo cation. Any components damaged due to Contractor negligence shall be replaced with new components at the Contractor’s expense, and as directed by the Engineer. The Contractor shall reuse all existing materials to the greatest extent possible for the resetting of lights. If wiring or conduit is damaged by the Contractor during removal, the Contractor shall supply new materials of similar size and type that conform to the National Electric Code and as needed to complete the work to the satisfaction of the Eng ineer. The Contractor shall provide new conduit and wiring as needed to relocate the lights to the new location. 679.1 2 STREE T LIGHTIN G CONTRO L DEVICES . An astronomical clock shall be provided for each wired group of street lights and installed at the power drop stanchion for each group, unless otherwise specified on the Plans.
679
6-357Astronomical clocks shall have two -circuit scheduling, at least 20 set points for individual programs for
each day of the week, be capable of Daylight Saving Time adjustments, have a manual override, and a power outage backup system with permanent schedule retention and memory module. All astronomical clocks shall be placed in an enclosure meeting the requirements of ANSI/NEMA 250 , Type 3R and all shall be the same for the project. A mix of clocks will not be allowed for new installations. Astronomical clocks will not be required for single installations of street light assemblies. Other types of control devices will be allowed for single installations. 679.1 3 POWE R DROP STANCHION . Power drop stanchions shall conform to the requirements of 679.1 4 ELECTRI C WIRING . All wiring shall be in accordance with the National Electrical Code and Section 678 . All current carrying conductors shall have a fusible disconnect in the base of each light pole accessible from the hand hole or breakaway base. Conductors shall not have any unnecessary kinks or bends. End caps, when necessary, of the appropriate size for the service conductors shall be installed at all termination points in pull boxes, junction boxes, and light pole bases. 679.1 5 FINISH . All transformer bases, light poles, bracket arms, and luminaires shall have either a powder coating or anodized aluminum finish. All finishes shall be factory -applied. Anodized aluminum coatings shall have a minimum coating thickness of 1.0 mils. Powder coatings shall be a thermosetting material, with a minimum film thickness of 4.0 mils. The powder coating process shall have pre -treatment steps that ensure complete cleaning and adherence of the coating materials, including at least the following steps: hot alkaline wash, rinse, hot phosphoric acid etching, and final rinse. It shall be free of blisters, cracks, stains, and similar defects. 679.1 6 ACCEPTANCE . Acceptance of street lighting systems shall be based on the following conditions:
period. The street lighting systems shall be completely operable and energized for 30 consecutive calendar days without any defects in the system for successful completion of the test period. All required adjustments to the street lighting control device, if required, shall be completed to the satisfaction of the Engineer p rior to acceptance.
679 6-358 679.1 7 TEMPORAR Y STREE T LIGHTING.
locations shown on the Plans or directed by the Engineer. Temporary street lighting is not work zone lighting, which shall instead meet the requirements of Section 641 . The temporary street lighting system installed at the designated location shall include all necessary existing or Contractor -provided materials and equipment shown on the Plans, including, but not limited to, light poles, bracket arms, luminaires, conduit, control devices, transformer bases, and foundations.
Standard Specifications for the Structural Supports for Highway Signs, Luminaires , and Traffic Signals and the National Electrical Code but is not required to be new.
this section with the following modifications:
and shall repair or replace defective equipment at no cost to the Agency .
disturbed areas shall constitute the completion of the Contract item.
electrical power to the temporary street lighting system and operation.
to deactivating the temporary street lighting system. 679.1 8 METHO D OF MEASUREMENT . The quantity of Remove Street Light Assembly to be measured for payment will be the number of each street light assembly removed in th e complete and accepted work. The quantity of Remove and Reset Light Pole to be measured for payment will be the number of each light pole removed, stored, and reset in the complete and accepted work.
679
6-359The quantity of Remove and Reset Private Light Assembly to be measured for payment will be the number
of light assemblies removed and reset in the complete and accepted work. The quantity of Street Light Assembly to be measured for payment will be the number of each street light assembly inst alled in t he complete and accepted work. The quantity of Bracket Arm to be measured for payment will be the number of each bracket arm installed in the complete and accepted work. The quantity of Luminaire to be measured for payment will be the number of each lumina ire installed in the complete and accepted work. The quantity for Street Lighting Control Device to be measured for payment will be the number of each street lighting control device installed in the complete and accepted work. The quantity of Temporary Str eet Light Assembly to be measured for payment will be the number of each temporary assembly installed in the complete and accepted work. 679.1 9 BASIS OF PAYMENT . The accepted quantity of Remove Street Light Assembly will be paid for at the Contract unit p rice per each. Payment will be full compensation for removing and disposing of a street light assembly, including light pole foundation, transformer base, light pole, bracket arm, luminaire, wiring and other incidentals, and for all labor, materials, tools , equipment, and incidentals necessary to complete the work. The accepted quantity of Remove and Reset Light Pole will be paid for at the Contract unit price per each. Payment will be full compensation for removing, storing, and installing a salvaged light pole, including transformer base, light pole, bracket arm, luminaire wiring, and for all labor, materials, tools, equipment, and incidentals necessary to complete the work. The accepted quantity of Remove and Reset Private Light Assembly will be paid for at the Contract unit price per each. Payment will be full compensation for removing the light, light pole, and foundation; installing wiring and conduit; transportation, handling, and resetting lightings at locations indicated in the Plans or as directed b y the Engineer; providing any new conduit, wiring, hardware, bulbs, and accessories; performing any necessary excavation, backfilling, electrical connections, and testing; and for furnishing all labor, tools, equipment, and incidentals necessary to complet e the work. The accepted quantity of Street Light Assembly will be paid for at the Contract unit price per each. Payment will be full compensation for furnishing, transporting, handling, and placing the light pole foundation, transformer base, light pole, bracket arm luminaire, wiring within the Street Light Assembly, and for all labor, materials, tools, equipment, and incidentals necessary to complete the work.
679
6-360The accepted quantity of Bracket Arm will be paid for at the Contract unit price per each. Payment will
be full compensation for furnishing, transporting, handling, and placing the bracket arm, wiring within the bracket arm, hardware required to mount the bracket arm to the light pole , and for all labor, materials, tools, equipment, and incidentals necessary to complete the work. The accepted quantity of Luminaire will be paid for at the Contract unit price per each. Payment will be full compensation for furnishing, transporting, handling, and placing the luminaire housing, ballasts, lamps, control device , and for all labor, materials, tools, equipment, and incidentals necessary to complete the work. The accepted quantity of Street Lighting Control Device will be paid for at the Contract unit price per each. Payment will be full compensati on for furnishing, transporting, handling, placing, and installing a fully functional street lighting control device and for all labor, materials, tools, equipment, and incidentals necessary to complete the work. The accepted quantity of Temporary Street L ight Assembly will be paid for at the Contract unit price per each. Payment will be full compensation for furnishing, transporting, handling, and placing the temporary street light assembly and for all labor, materials, tools, equipment, and incidentals ne cessary to complete the work. Circuit testing and connections to power sources will not be paid for separately but will be considered incidental to the Contract items that include the costs of wiring. The cost of furnishing and installing electrical condui t, wired conduit, electrical wiring, electrical conduit sleeve, pull boxes, and junction boxes, when not covered under Section 678 , shall be considered incidental to the items in this section. Payment will be made under: Pay Item Pay Unit
679.2400 Remove Street Light Assembly ................................ ................................ Each
679.2500 Remove and Reset Light Pole ................................ ................................ ...Each
679.2600 Remove and Reset Private Light Assembly ................................ .............. Each
679.4600 Street Light Assembly ................................ ................................ ............... Each
679.4700 Bracket Arm ................................ ................................ .............................. Each
679.5000 Luminaire ................................ ................................ ................................ ..Each
679.5400 Street Lighting Control Device ................................ ................................ .Each
679.7000 Temporary Street Light Assembly ................................ ............................ Each
680
6-361SECTIO N 680 – TRAVE L INFORMATIO N SIGNS
680.0 1 DESCRIPTION . This work shall consist of furnishing, erecting, and maintaining travel information signs and information plazas. 680.0 2 MATERIALS . Materials shall meet the requirements of the following subsections: Drainage Aggregate ................................ ................................ ................................ ...704.1 6 Structural Timber and Lumber ................................ ................................ ................... 709.01 Nonstructural Lumber ................................ ................................ ................................ 709.02 Timber Preservative ................................ ................................ ................................ ...726.01 Sign Posts ................................ ................................ ................................ ................... 750.01 Retroreflective Sheeting ................................ ................................ ............................. 750.0 4 Assembly Hardware ................................ ................................ ................................ ...750.05 All materials shall be in conformance with the requirements of the Vermont Travel Information Council. The colors used for specific signs, symbols, and plaques shall be as shown on the Plans and shall provide an acceptable match to the appropriate color chip in SAE AMS -STD-595 as specified in Table 680.02A . TABLE 680.02A – SIGN COLORS Color Black White Mage nta Brown Orange Gray Chip No. 17038 17875 11158 10100 12501 16373 The color of retroreflective material shall be silver-white No. 2. Concrete shall conform to the requirements of Section 541 for Concrete, Class B. 680.0 3 PLANS . Plans for travel information signs, associated components, and work required will consist of assembly drawings of information plazas, Standard Drawings, location and site plan, and order forms detailing the work to be performed at each specified location. 680.0 4 SIGN POSTS . The installation of steel and aluminum sign posts shall conform to the requirements of Section 675 . Posts shall be set to the depth shown on the Plans. 680.0 5 SIGNS . Travel and business info rmation signs shall be prepared and installed according to the requirements of Section 675 , except as modified by this subsection .