HIGHWAY LIGHTING
PART 1 GENERAL
1.1SECTION INCLUDES
A.Lighting for highway, understructure, sign, bridge, parking lot, and other
lighting systems.
1.2RELATED SECTIONS
A.Section 02466: Drilled Shafts
B.Section 02741: Asphalt Mix
C.Section 02842: Delineators
D.Section 03055: Portland Cement Concrete
E.Section 03211: Reinforcing Steel and Welded Wire
F.Section 03575: Flowable Fill
G.Section 05120: Structural Steel
H.Section 09972: Painting for Structural Steel
I.Section 13554: Underground Junction Box
J.Section 16530: Electrical Power
1.3REFERENCES
A.AASHTO M 111: Zinc (Hot-Dipped Galvanized) Coatings on Iron and
Steel Products
B.AASHTO M 232: Zinc Coating (Hot Dip) on Iron and Steel Hardware
C.AASHTO Standard Specification Structural Supports for Highway Signs,
Luminaires, and Traffic Signals (current edition)
D.ASTM A 36: Carbon Structural Steel
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E.ASTM A 572: High-Strength Low-Alloy Columbium-Vanadium Structural
Steel
F.ASTM B 29: Refined Lead
G.ASTM B 766: Electrodeposited Coatings of Cadmium
H.ASTM F 1554: Anchor Bolts, Steel, 36, 55, and 105-ksi Yield Strength
I.American Iron & Steel Institute (AISI)
J.American National Standards Institute (ANSI)
K.American Wire Gauge (AWG)
L.Illuminating Engineering Society (IES)
M.Institute of Electrical and Electronics Engineers (IEEE)
N.Intertek ETL Listed
O.National Electric Code (NEC)
P.National Electrical Manufacturers Association (NEMA)
Q.National Fire Protection Association (NFPA)
R.Underwriters Laboratories (UL)
1.4DEFINITIONS Not Used
1.5SUBMITTALS
A.Manufacturer’s parts list, wiring schematics, installation instructions, shop
drawings, and maintenance manuals for review.
B.Manufacturer’s warranty, guarantee information, and certifications for
information.
C.Warranty letter stating that the contractor guarantees the lighting system
against all material and installation defects for a period of 6 months.
1.The guarantee periods start on the date of Substantial Completion.
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2.Include in the letter:
a.State Project Designation
b.State Project Name
c.Contractor, Provider, and Installer Name
3.The guarantee covers 100 percent of the lighting system materials
and installation costs.
4.Remove and replace lighting system for all failed sections in the
event of performance failure.
1.6QUALITY ASSURANCE
A.Electrical components must conform to the requirements of the National
Electrical Code (NEC).
B.A licensed Journeyman Electrician must be responsible for and supervise
all onsite work related to this Section.
PART 2 PRODUCTS
2.1CONDUCTORS AND GROUNDING
A.Refer to Section 16530.
2.2CONDUIT
A.Refer to Section 16530.
2.3UNDERGROUND JUNCTION BOXES
A.Refer to Section 13554.
2.4POWER CABLE ROUTE MARKER
A.Refer to ASTM B 29, alloy 5052-H38. 0.08 inch thick sheet aluminum as
specified.
B.White and red enamel paint – Refer to Section 09972.
C.Mounting hardware – Refer to Section 05120.
D.Flanged channel mount post – Refer to Section 02842.
2.5SPLICE, MOLDED CONNECTOR, AND FUSE HOLDER
A.Splicing– Wet location type connectors. Refer to Section 16530.
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B.Use spring-loaded, molded connector and fuse holder with 90 percent
minimum conductivity according to ANSI/UL 486A. Include an integrated break-away coupling for luminaire pole with slip base h 200,000 A interrupting rating. Refer to UL Class CC.
C.Light pole fuses with rating according to Table 1.
Table 1 Light Pole Fuses Voltage Wattage HPS LED
(Amps)(Amps)
120 250/400 20 15 208/240 250/400 15 10 277/480 250/400 10 5
D.Lighting Circuit Fuses – Refer to UL Class RK5.
E.Service Disconnect Fuses – Refer to UL Class R.
2.6POLE – GENERAL
A.Use tapered steel poles. Refer to SL Series Standard Drawings.
B.Galvanized according to AASHTO M 111.
C.Performance Criteria
1.Wind load – Design according to AASHTO Standard Specifications
for Structural Supports for Highway Signs, Luminaires, and Traffic Signals (Current Edition).
2.Designed for luminaire weight of 77 lb with projected area of 3.0 ft2.
3.Maximum allowable deflection of 4¾ inch. Deflection criteria are
based on a 100 lb horizontal load applied at 6 inches below shaft top.
D.Pole Designated for Decorative Lighting
1.Provide a festoon outlet located 16 ft from the base plate with
duplex receptacle and weather-proof cover.
2.UL listed.
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E.Light Pole Numbers
1.General
a.Use 3 inch, series C legend, green reflectorized sheeting as
specified with 1 inch vertical spacing between letters. The legend reads from top to bottom.
b.Use 4 inch wide, white reflectorized sheeting as specified for
legend backing.
c.Refer to Standard Specification for Construction and Bridges
on Federal Highway Projects (Current Edition) for reflective sheeting.
2.Mainline Lighting
a.Use mile marker to two decimal places for light pole
identification (ID) number and a letter to show which circuit it is attached to.
b.Example: 3 Light pole at mile marker 302.22
A
3.Ramp Lighting
a.Specify the light pole ID number consisting of the following
components: the exit number, the general direction of the ramp, collector, or frontage, the light pole number in a series numbered in the direction of travel, and a letter to identify the electrical circuit.
b.Use the following legend codes:
W = west F = frontage N = north S = south
c.Example:
3 34 indicates exit number 34, WCN identifies 4 a westbound to northbound collector ramp, W 2 designates the second pole in a series, C and the B references the electrical circuit. N B
F.Light Pole Foundation
1.Use drilled shafts according to Section 02466.
a.Use Class AA(AE) concrete – Refer to Section 03055.
b.Use coated deformed reinforcing steel – Refer to 03211.
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2.7HIGHWAY LUMINAIRE GROUND MOUNTED POLE – MOUNTING HEIGHT 45
FEET AND UNDER
A.State Furnished Items
1.Luminaire pole with base
2.LED luminaire
3.Luminaire arm or vertical attachment.
4.Anchor bolts
5.Related hardware for this Section, Article 2.7 paragraphs A1thru
A4.
2.8POLE – MOUNTING HEIGHT OVER 45 FEET (HIGH MAST)
A.Allowable steel stresses as specified in current AASHTO Standard
Specification for Structural Supports for Highway Signs, Luminaires, and Traffic Signals.
1.Refer to ASTM A 572 Grade 50.
2.Meet Fatigue Category I for poles 100 ft or higher and Fatigue
Category II for poles under 100 ft.
B.Steel base-plate – Refer to ASTM A 572 grade 50 or ASTM A 36.
C.Anchor bolts – Refer to AASHTO M 232, ASTM F 1554, grade 55.
D.High Mast Service Hoist Assembly
1.Mast head assembly – Provide steel support sheaves for support of
hoisting cables.
a.Use sheaves with oil-impregnated, sintered-bronze bushings
mounted on stainless steel shafts.
b.Include mast head cover of galvanized steel or spun
aluminum that protects the assembly from weather.
2.Hoisting cables – three 3/16 inch, 7 x 19 non-rotational stainless
steel cables.
3.Luminaire support ring – minimum 10-gauge galvanized or
stainless steel ring and 2 inch diameter luminaire arms.
a.Mount a weather tight wiring enclosure containing a pre-
wired 600 V terminal block with power receptacle for testing luminaries when ring has been lowered.
4.Power cable sheave – brushed with oil-impregnated, sintered-
bronze bushings with a stainless steel shaft.
5.Ring centering device – roller-contact, spring-loaded, water-
resistant, non-marking roller on stainless steel shaft.
6.Winch – worm gear driven and self-locking with ¼ inch, 7 x 19 non-
rotational, stainless steel cable.
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7.Internal drive motor – UL Listed as heavy duty, reversing, with
torque limiter, capable of raising the luminaire support ring at a minimum rate of 15 ft per minute.
8.Latching system– Use a bottom latching system to hold luminaire
ring in its raised position.
a.Install safety chains for securing the clevis assembly.
2.9HIGHWAY LUMINAIRE
A.Physical Requirements
1.Low-profile, die-cast aluminum housing with white or grey minimum
3 mil powder coat finish.
a.Wide angular channels that allow for natural removal of dirt
and debris.
2.1.5 inch to 2.5 inch O.D. horizontal tenon mount.
3 Built in bubble level.
4.High temperature wiring.
5.Hinged door with tool-less entry.
6.Large terminal block directly in line with incoming power wires,
accommodate up to 6 AWG wire.
7.Luminaire weight and projected area within design loading limits.
8.UL 8750 and UL 1598 compliant.
9.Vibration tested to ANSI C136.31.
10.ETL Listed for wet locations.
11.Refer to SL Series Standard Drawings.
B.LED Driver
1.Rated for a minimum 70,000 hours.
2.NEMA IP66 rated.
3.Voltage a specified. Multi-volt 120 – 277 VAC or 480 VAC.
4.Built-in 10 kV surge suppression.
C.LED Optics Chamber
1.EMA IP66 rated.
D.Performance Requirements
1.IES L70 lumen maintenance minimum 70,000 hours.
2.Apparent color temperature 4000K – 4500 K.
3.Type II light distribution pattern.
4.Luminaire Type A
a.Minimum 9,000 delivered lumens per IES LM-79.
b.Required power – maximum 140 Watts.
5.Luminaire Type B
a.Minimum 14,500 delivered lumens per IES LM-79.
b.Required power maximum 230 Watts
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2.10HIGH MAST LUMINAIRE
A.Physical Requirements
1.Symmetrical or asymmetrical with the asymmetrical capable of 360
degrees rotation.
2.Cast Type 319 aluminum ballast housing with slipfitter mounts
adjustable to at least plus or minus 3 degrees.
3.Optical assembly – Open, ventilated, treated aluminum reflector.
4.UL 1572 compliant.
5.Universal or Advance standard ballast with standard capacitor and
ignitor. Do not use electronic ballasts or ignitors.
B.High Pressure sodium ballast
1.Operates at 480 VAC.
2.Refer to ANSI C82.4, C82.6, C92.1, and ANSI/UL 1029.
3.Power Factor must maintain 90 percent for nominal secondary load
and at least 70 percent for any 10 percent voltage variation.
4.Lamp Wattage – maintain no more than 5 percent variation.
5.Regulation – maintain no more than 35 percent for 10 percent line-
voltage variation.
6.Must start and operate at the rated lamp wattage at ambient
temperatures down to -20 degrees F for the rated life of the lamp.
7.Must sustain lamp operation for a minimum of 4 seconds at a
voltage dip of 35 percent.
C.Lamp
1.Philips, Sylvania, General Electric, or approved equivalent 1000 W
E-25 lamp with mogul base.
2.Non-cycling characteristics.
3.Rated life of no less than 24,000 hours at 10 hours per start-up.
2.11UNDERSTRUCTURE LUMINAIRE
A.Physical Requirements
1.LED or induction lamp fixture, specifically designed for
understructure application.
2.Die-cast aluminum housing with vandal-proof fastener.
3.Optical assembly – heat and impact resistant, tempered glass, or
prismatic acrylic lens and stainless steel lens guard.
4.Wall mount – minimum 60 degree beam angle.
5.UL 8750 and UL 1598 compliant.
6.Vibration tested to ANSI C136.31.
7.ETL Listed for wet locations.
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B.LED Driver
1.Rated for a minimum 70,000 hours.
2.NEMA IP66 rated.
3.Voltage as specified. Multi-volt 120 – 277 VAC or 480 VAC.
4.Built-in 10 kV surge suppression.
C.LED Performance Requirements
1.IES L70 lumen maintenance minimum 70,000 hours.
2.Apparent color temperature 4000 K – 4500 K.
3.Minimum 7500 delivered lumens per IES LM-79.
4.Required power – maximum 110 Watts.
D.Induction Lamp Driver
1.Power Factor– minimum of 90 percent for a 10 percent voltage
variation.
2.Lamp Wattage– 150 W – 165 W with no more than 5 percent
variation.
3.Regulation– maintain no more than 30 percent for 10 percent line
voltage variation.
4.Must start and operate at the rated lamp wattage at ambient
temperatures down to 20 degrees F for the rated life of the lamp.
5.Must maintain lamp operation for a minimum of 4 seconds at a
voltage dip of 40 percent.
E.Induction Lamp Performance Requirements
1.Apparent color temperature of 3,500 K to 4,100 K.
2.Rated life of no less than 100,000 hours at 10 hours per start up.
2.12OVERHEAD SIGN LUMINAIRE
A.General Requirements
1.LED or induction lamp fixture with die-cast aluminum housing, die-
cast aluminum door and integral glare shield.
2.1¼ inch square conduit clamp support.
3.Photometrics designed specifically for sign illumination.
4.Weight – no more than 40 lb with a projected area of not more than
2.5 ft2.
5.Meet all applicable specifications outlined in 2.11 of this Section.
6.LED performance – Minimum 5,000 delivered lumens at a
maximum 70 Watts.
7.Induction lamp performance – 70 W to 85 W.
2.13SERVICE DISCONNECT SWITCH
A.Refer to Section 16530.
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2.14CONTROL EQUIPMENT
A.Photocell Control Units
1.Refer to ANSI 136.10, NEMA Base.
2.Fail safe in the “on” position. Turns on at 32 Lx ± 10 percent.
3.Minimum 12-year warranty.
B.Lighting Contactor
1.Hermetically sealed, steel tube mercury contacts.
2.Manually operated, mechanically held contact.
3.Remote or photoelectric-operated, magnetic, electrically held
contactor.
4.Three position slide selector with “on-off-auto” switch.
C.Control Relay
1.Refer to ANSI/IEEE C37.13, C37.27 and C62.41.
2.Contact rating of 3,000 W minimum.
3.Normally open.
4.Multiple relay – Zinc/di-chromate-plated magnet, Class B insulation
rating coil, cadmium oxide contact, dual expulsion gap lightning arrester and valve type line arrester with no less than 650 V rating.
D.Enclosure
1.Refer to NEMA 250 Type 3R. Encase in a cabinet with padlock as
specified.
E.Circuit Breaker UL Rated
1.240 V at 10,000 A interrupting rating
2.480 V at 14,000 A interrupting rating
2.15MEDIUM VOLTAGE CONDUCTORS AND TRANSFORMER
A.Refer to Section 16530.
2.16HIGHWAY LIGHTING ELECTRICAL SERVICE
A.Refer to Section 16530.
2.17CONCRETE AND ASPHALT
A.Concrete – Class AA (AE). Refer to Section 03055.
B.Asphalt Mix – Section 02741
C.Flowable Fill – Section 03575
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2.18HARDWARE
A.Screws – stainless steel
B.Nuts, bolts, and washers
1.Galvanized – Refer to AASHTO M 111.
2.Cadmium-plated – Refer to ASTM B 766.
3.Type NS, as specified.
C.Mounting bands and buckles – stainless steel, ¾ inch wide, 0.03 inch thick
meeting AISI, Type 201.
D.Padlock – Master, No. P-848.
PART 3 EXECUTION
3.1PREPARATION
A.Comply with the National Electrical Code (NEC)
B.Coordinate State Furnished Materials with the Engineer.
1.Receive materials at the Department’s Central Warehouse, 4503
South 2700 West, Salt Lake City, UT. Contact the warehouse to schedule a pickup.
2.Receive drop shipment materials at location specified.
C.Coordinate with utility – refer to Section 16530.
D.Pothole, locate, or expose any utility that may conflict with drilling,
trenching, or boring work associated with placement of highway lighting pole and conduit.
3.2CONSTRUCT LIGHT POLE FOUNDATION
A.Install according to Section 02466 and the SL Series Standard Drawings.
3.3TRENCHING AND DIRECTIONAL BORING FOR CONDUIT
A.Refer to Section 16530.
B.Conduit offset from roadway by more than 20 ft may be installed by
plowing.
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3.4INSTALL CONDUIT AND JUNCTION BOXES
A.Refer to Section 16530.
3.5INSTALL WIRING
A.Refer to Section 16530.
B.Install wiring according to NFPA 70.
1.Neatly arrange wiring within items such as cabinets and junction
boxes.
C.Install molded connectors on the cable so that the load side retains the
fuse when it is disconnected at the cable’s breakaway coupling.
D.Use compression or bus bar and water seal as specified.
E.Use dual connection fuse holders in the luminaire pole for continuous
circuits. Do not splice wire in junction boxes unless the circuit is split into two separate runs.
F.Use minimum No. 8 AWG wire in luminaire pole.
3.6INSTALL LUMINAIRES AND BALLASTS
A.Clean all light control surfaces, refractors, and reflectors immediately
before installation to provide the maximum lumen output possible.
1.Clean according to the luminaire manufacturer’s recommendations.
B.Adjust luminaires with a level.
C.Adjust sign bridge luminaires for optimum and uniform light distribution.
D.High mast luminaire – Obtain manufacturer’s certification that the service
hoist operation is correctly installed.
3.7INSTALL POWER SOURCE CONNECTION
A.Lighting pedestal – Refer to SL Series Standard Drawings. Install
according to manufacturer’s recommendations.
B.Service Disconnect Switch
1.Install the grounded neutral conductor from secondary power
source to the switch box.
2.Install mounting bracket within 1 ft of both top and bottom of the
switch box and within 3 ft of other cabinet or fitting. Highway Lighting
3.Provide and install material required by the appropriate power
company.
4.Install padlock on the switch box door and handle.
3.8INSTALL MEDIUM VOLTAGE TRANSFORMER
A.Refer to Section 16530.
B.Refer to SL Series Standard Drawings.
C.Coordinate work with local power company.
D.Locate foundation in a well drained area.
E.Dig a trench and backfill for the primary power cable.
F.Install padlocks on doors.
3.9PHOTO-ELECTRIC CONTROL
A.Adjust to “North Sky” position.
3.10POLE
A.Refer to SL Series Standard Drawings.
B.Center the shaft top over the center of the foundation after the arm
extension, luminaire, and all accessories are in place or according to the manufacturer’s requirements.
C.Install pole identification numbers at a 45 degree angle to approaching
traffic.
1.Remove old identification numbers without damage to galvanizing.
D.Torque
1.Anchor bolts to 118 lbf-ft.
2.Slip bolts to 80 lbf-ft, release, and re-torque to 70 lbf-ft.
E.Installing Items on a Pole
1.Do not drill steel pole.
2.Use stainless steel mounting bands.
F.Bond metal pole to concrete encased grounding electrode. Refer to
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3.11TESTING
A.Continuity of grounding conductor to maintain 1,000 watt load at circuit
ends maintaining 95 percent of supply voltage.
B.Test for conductor insulation integrity – refer to Section 16530.
3.12SALVAGE
A.Remove equipment to be reused or salvaged carefully so that it remains in
the condition existing before its removal.
B.Pole assembly remains the property of the Department.
1.Transport to the location specified.
C.Remove foundation to a depth of 12 inches below the existing surface and
backfill with local material.
D.Remove and discard abandoned junction boxes.
1.Backfill with local material and compact to match adjacent grade.
END OF SECTION
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Utah revises spec sections through supplementals and new editions. We check this one every week and email you the day it changes. Free, no account.
Source: Utah Standard Specifications for Road and Bridge Construction, 2026 Edition. Pages 1289–1302 of 1,331.
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