1200 New Jersey Ave., S.E. 

Washington, DC 20590

May 30, 2008 

In Reply Refer To: HSSD/LS-67 

Mr. Travis Rock 

Dynamic Lighting Inc. 

5220 Shank Rd 

Houston, TX 77581 

Dear Mr. Rock: 

This letter is in response to your request for Federal Highway Administration (FHWA) 

acceptance of a roadside safety device for use on the National Highway System (NHS). 

 Name of device: Dynamic Lighting decorative poles and ground stub 

 Type of device: Luminaire Support 

 Test Level: Test Level 3 (TL-3) 

 Testing conducted by: Texas Transportation Institute (TTI) 

 Date of request: May 6, 2008 

 Date of follow-up: May 20, 2008 

You requested that we find this device acceptable for use on the NHS under the provisions of 

National Cooperative Highway Research Program (NCHRP) Report 350 “Recommended 

Procedures for the Safety Performance Evaluation of Highway Features.” 

Requirements

Roadside safety devices should meet the guidelines contained in the NCHRP Report 350, 

"Recommended Procedures for the Safety Performance Evaluation of Highway Features". 

FHWA Memorandum “ACTION: Identifying Acceptable Highway Safety Features” of 

July 25, 1997 provides further guidance on crash testing requirements of luminaire supports. 

Description 

The following two Dynamic Lighting decorative luminaire installations were tested at the TTI 

outdoor pendulum testing facility: 

1) Dynamic Lighting pole base 26706B was connected to a fluted luminaire and attached to a 

Dynamic Lighting ground stub FDBE36 as shown in the enclosed drawings. The 36-inch 

(0.91 m) ground stub was installed in NCHRP 350 standard soil. The total height of the base and 

pole is 13 feet 10 inches (4.22 m). The base is cast aluminum (alloy A319) with an 11-1/2 inch 
2

(292.1 mm) square base bottom tapering to an octagonal shape for a base height of 25-1/4 inches 

(641.35 mm). Drawings of the Dynamic Lighting pole cast base assembly 26706B, pole, and 

ground stub FDBE36 are enclosed. The Dynamic Lighting pole base 26706B with luminaire 

pole was also tested while attached to a rigid steel reaction plate to simulate a fixed anchorage. 

2) Dynamic Lighting pole base 26706A was connected to a fluted luminaire and attached to a 

rigid steel reaction plate to simulate a fixed anchorage. The total height of the base and pole is 

15 feet 6 inches (4.72 m). The base is cast aluminum (alloy A319) with a 17 inch (431.8 mm) 

diameter base bottom tapering to a 5 inch (127 mm) diameter and overall base height is 17-1/4 

inches (438.15 mm). A drawing of the Dynamic Lighting pole cast base assembly 26706A and 

pole is enclosed. 

Crash Testing

Your company’s decorative lighting poles were tested at TTI’s outdoor pendulum testing facility 

as a surrogate for full-scale crash testing. The pendulum bogie was built according the 

specifications of the Federal Outdoor Impact Laboratory's (FOIL) pendulum, and the frontal 

crush of the aluminum honeycomb nose of the bogie simulated the crush of an actual vehicle. 

Tests with pendulums are acceptable for most breakaway supports, exceptions being base 

bending or yielding supports. 

Three low speed pendulum tests were conducted on your company’s decorative lighting 

supports, one test on each of the pole installations. Summaries of test results are enclosed. All 

Decorative Lighting Poles met the NCHRP Report 350 occupant risk criteria. 

In tests with Dynamic Lighting pole base 26706B (surface mount and embedded ground stub 

FDBE36) and Dynamic Lighting pole base 26706A, the base separated from the ground and the 

lighting pole separated from the decorative base section. The base fractured at ground line and 

this performance satisfies the FHWA limit of maximum 3.9 inch (100 mm) stub height 

remaining after a support breaks away. 

Findings

In summary, the Dynamic Lighting pole base 26706B (with the surface mount or the embedded 

ground stub FDBE36) and Dynamic Lighting pole base 26706A with decorative lighting poles, 

meet the appropriate evaluation criteria for a NCHRP 350 TL-3 device. They may be used at all 

appropriate locations on the NHS when selected by the contracting authority, subject to the 

provisions of Title 23, Code of Federal Regulations, Section 635.411 as they pertain to 

proprietary products. The Dynamic Lighting pole base 26706B (surface mount and embedded 

ground stub FDBE36) is accepted with luminaire pole mounting heights up to13 feet 10 inches 

(4.22 m), with shafts up to 0.188 inch (4.78 mm) wall thickness, and diameters up to 

4 inches (101.6 mm). The ground stub FDBE36 must have a 0.188 inch (4.78 mm) wall 

thickness and embedment length of at least 36 inches (0.91m) in NCHRP standard soil. The 

Dynamic Lighting pole base 26706A is accepted with luminaire pole heights up to 15 feet 

6 inches (4.72 m), with shafts up to 0.155 inch (3.94 mm) wall thickness, and with diameters up 

to 5 inches (127 mm). 
3

Standard provisions 

Please note the following standard provisions that apply to FHWA letters of acceptance: 

• This acceptance is limited to the crashworthiness characteristics of the device and does not 

cover their structural features, nor conformity with the Manual on Uniform Traffic Control 

Devices. 

• Any changes that may adversely influence the crashworthiness of the device/system will 

require a new acceptance letter. 

• Should the FHWA discover that the qualification testing was flawed, that in-service 

performance reveals unacceptable safety problems, or that the device/system being marketed 

is significantly different from the version that was crash tested, we reserve the right to 

modify or revoke our acceptance. 

• You will be expected to supply potential users with sufficient information on design and 

installation requirements to ensure proper performance. 

• You will be expected to certify to potential users that the hardware furnished has essentially 

the same chemistry, mechanical properties, and geometry as that submitted for acceptance, 

and that it will meet the crashworthiness requirements of the FHWA and the NCHRP 

Report 350. 

• To prevent misunderstanding by others, this letter of acceptance is designated as number 

LS-67 and shall not be reproduced except in full. This letter and the test documentation upon 

which it is based are public information. All such letters and documentation may be 

reviewed at our office upon request. 

• The Dynamic Lighting decorative luminaire supports are patented products and considered 

proprietary. If proprietary devices/systems are specified by a highway agency for use on 

Federal-aid projects, except exempt, non-NHS projects, they: (a) must be supplied through 

competitive bidding with equally suitable unpatented items; (b) the highway agency must 

certify that they are essential for synchronization with the existing highway facilities or that 

no equally suitable alternative exists; or (c) they must be used for research or for a distinctive 

type of construction on relatively short sections of road for experimental purposes. Our 

regulations concerning proprietary products are contained in Title 23, Code of Federal 

Regulations, Section 635.411. 

• This acceptance letter shall not be construed as authorization or consent by the FHWA to use, 

manufacture, or sell any patented device/system for which the applicant is not the patent 

holder. The acceptance letter is limited to the crashworthiness characteristics of the 

candidate device/system, and the FHWA is neither prepared nor required to become involved 

in issues concerning patent law. Patent issues, if any, are to be resolved by the applicant. 

Sincerely yours, 

David A. Nicol, P.E. 

Director, Office of Safety Design 

Office of Safety 

Enclosures 
4

FHWA:HSSD:MLupes:tb:x66994:5/21/08 

File: s://directory folder/mlupes/LS67-Dynamic Lighting (2).doc 

cc: HSSD (Reader, HSA; Chron File, HSSD; M.Lupes, HSSD; 

 M.Bloschock, HSSD; M.McDonough, HSSD) 

 
1200 New Jersey Ave., S.E. 

Washington, DC 20590

May 30, 2008 

In Reply Refer To: HSSD/LS-67 

Mr. Travis Rock 

Dynamic Lighting Inc. 

5220 Shank Rd 

Houston, TX 77581 

Dear Mr. Rock: 

This letter is in response to your request for Federal Highway Administration (FHWA) 

acceptance of a roadside safety device for use on the National Highway System (NHS). 

 Name of device: Dynamic Lighting decorative poles and ground stub 

 Type of device: Luminaire Support 

 Test Level: Test Level 3 (TL-3) 

 Testing conducted by: Texas Transportation Institute (TTI) 

 Date of request: May 6, 2008 

 Date of follow-up: May 20, 2008 

You requested that we find this device acceptable for use on the NHS under the provisions of 

National Cooperative Highway Research Program (NCHRP) Report 350 “Recommended 

Procedures for the Safety Performance Evaluation of Highway Features.” 

Requirements

Roadside safety devices should meet the guidelines contained in the NCHRP Report 350, 

"Recommended Procedures for the Safety Performance Evaluation of Highway Features". 

FHWA Memorandum “ACTION: Identifying Acceptable Highway Safety Features” of 

July 25, 1997 provides further guidance on crash testing requirements of luminaire supports. 

Description 

The following two Dynamic Lighting decorative luminaire installations were tested at the TTI 

outdoor pendulum testing facility: 

1) Dynamic Lighting pole base 26706B was connected to a fluted luminaire and attached to a 

Dynamic Lighting ground stub FDBE36 as shown in the enclosed drawings. The 36-inch 

(0.91 m) ground stub was installed in NCHRP 350 standard soil. The total height of the base and 

pole is 13 feet 10 inches (4.22 m). The base is cast aluminum (alloy A319) with an 11-1/2 inch 
2

(292.1 mm) square base bottom tapering to an octagonal shape for a base height of 25-1/4 inches 

(641.35 mm). Drawings of the Dynamic Lighting pole cast base assembly 26706B, pole, and 

ground stub FDBE36 are enclosed. The Dynamic Lighting pole base 26706B with luminaire 

pole was also tested while attached to a rigid steel reaction plate to simulate a fixed anchorage. 

2) Dynamic Lighting pole base 26706A was connected to a fluted luminaire and attached to a 

rigid steel reaction plate to simulate a fixed anchorage. The total height of the base and pole is 

15 feet 6 inches (4.72 m). The base is cast aluminum (alloy A319) with a 17 inch (431.8 mm) 

diameter base bottom tapering to a 5 inch (127 mm) diameter and overall base height is 17-1/4 

inches (438.15 mm). A drawing of the Dynamic Lighting pole cast base assembly 26706A and 

pole is enclosed. 

Crash Testing

Your company’s decorative lighting poles were tested at TTI’s outdoor pendulum testing facility 

as a surrogate for full-scale crash testing. The pendulum bogie was built according the 

specifications of the Federal Outdoor Impact Laboratory's (FOIL) pendulum, and the frontal 

crush of the aluminum honeycomb nose of the bogie simulated the crush of an actual vehicle. 

Tests with pendulums are acceptable for most breakaway supports, exceptions being base 

bending or yielding supports. 

Three low speed pendulum tests were conducted on your company’s decorative lighting 

supports, one test on each of the pole installations. Summaries of test results are enclosed. All 

Decorative Lighting Poles met the NCHRP Report 350 occupant risk criteria. 

In tests with Dynamic Lighting pole base 26706B (surface mount and embedded ground stub 

FDBE36) and Dynamic Lighting pole base 26706A, the base separated from the ground and the 

lighting pole separated from the decorative base section. The base fractured at ground line and 

this performance satisfies the FHWA limit of maximum 3.9 inch (100 mm) stub height 

remaining after a support breaks away. 

Findings

In summary, the Dynamic Lighting pole base 26706B (with the surface mount or the embedded 

ground stub FDBE36) and Dynamic Lighting pole base 26706A with decorative lighting poles, 

meet the appropriate evaluation criteria for a NCHRP 350 TL-3 device. They may be used at all 

appropriate locations on the NHS when selected by the contracting authority, subject to the 

provisions of Title 23, Code of Federal Regulations, Section 635.411 as they pertain to 

proprietary products. The Dynamic Lighting pole base 26706B (surface mount and embedded 

ground stub FDBE36) is accepted with luminaire pole mounting heights up to13 feet 10 inches 

(4.22 m), with shafts up to 0.188 inch (4.78 mm) wall thickness, and diameters up to 

4 inches (101.6 mm). The ground stub FDBE36 must have a 0.188 inch (4.78 mm) wall 

thickness and embedment length of at least 36 inches (0.91m) in NCHRP standard soil. The 

Dynamic Lighting pole base 26706A is accepted with luminaire pole heights up to 15 feet 

6 inches (4.72 m), with shafts up to 0.155 inch (3.94 mm) wall thickness, and with diameters up 

to 5 inches (127 mm). 
3

Standard provisions 

Please note the following standard provisions that apply to FHWA letters of acceptance: 

• This acceptance is limited to the crashworthiness characteristics of the device and does not 

cover their structural features, nor conformity with the Manual on Uniform Traffic Control 

Devices. 

• Any changes that may adversely influence the crashworthiness of the device/system will 

require a new acceptance letter. 

• Should the FHWA discover that the qualification testing was flawed, that in-service 

performance reveals unacceptable safety problems, or that the device/system being marketed 

is significantly different from the version that was crash tested, we reserve the right to 

modify or revoke our acceptance. 

• You will be expected to supply potential users with sufficient information on design and 

installation requirements to ensure proper performance. 

• You will be expected to certify to potential users that the hardware furnished has essentially 

the same chemistry, mechanical properties, and geometry as that submitted for acceptance, 

and that it will meet the crashworthiness requirements of the FHWA and the NCHRP 

Report 350. 

• To prevent misunderstanding by others, this letter of acceptance is designated as number 

LS-67 and shall not be reproduced except in full. This letter and the test documentation upon 

which it is based are public information. All such letters and documentation may be 

reviewed at our office upon request. 

• The Dynamic Lighting decorative luminaire supports are patented products and considered 

proprietary. If proprietary devices/systems are specified by a highway agency for use on 

Federal-aid projects, except exempt, non-NHS projects, they: (a) must be supplied through 

competitive bidding with equally suitable unpatented items; (b) the highway agency must 

certify that they are essential for synchronization with the existing highway facilities or that 

no equally suitable alternative exists; or (c) they must be used for research or for a distinctive 

type of construction on relatively short sections of road for experimental purposes. Our 

regulations concerning proprietary products are contained in Title 23, Code of Federal 

Regulations, Section 635.411. 

• This acceptance letter shall not be construed as authorization or consent by the FHWA to use, 

manufacture, or sell any patented device/system for which the applicant is not the patent 

holder. The acceptance letter is limited to the crashworthiness characteristics of the 

candidate device/system, and the FHWA is neither prepared nor required to become involved 

in issues concerning patent law. Patent issues, if any, are to be resolved by the applicant. 

Sincerely yours, 

David A. Nicol, P.E. 

Director, Office of Safety Design 

Office of Safety 

Enclosures 
,rl.188WALL

U '"'C,,"'"

"'- 12 FLUTES

180'

270'

FIXTURE DETAILS

Materials

Cast Aluminum Fitter

Electrical

4kv Pulse Rated Socket.

The Ballast used shall

be of the High Power

Factor design.

POLE DETAILS

Shaft

04" Extruded Aluminum

#6005-T5 Aluminum

Base

Cast Aluminum (A319Alloy)

Finish

Powder Coat

Approved By

*DRAWING NOT TO SCALE*

0 12 1/2" B.C.

r

13'-10"

ACCESS DOOR

3 1/2" X 6 3/4"

45 1/4"

1 1I4"-W

.L I I

-111 1/2"I- 2 1/2"

25 1/4"

~

NOTICE: THIS DRAWING IS FOR REFERENCE ONLY.

CHECK FOR LATEST REVISION PRIOR TO

ORDERING.

~~VNAM'C

M-r"IGHT'NG ,NC.

www.DYNAMICLIGHTING.com

5220 SHANK ROAD PEARLAND, TX. 77581

PHONE:(281)997-5400 FAX:(281) 997-5441

TOLL FREE: (800) 364-0098

Q#26706 5# P#

Date 9-13-07

REIOIUEST #

26706

Name:

TTIB

LIGHT DISTRIBUTION

8 TYPE III REFRACTOR 0 SPECIFY

TYPEVREFRACTOR II

0 STANDARD SYMMETRICAL L-J

0 TYPEIII REFLECTOR

0 TYPE V REFLECTOR

FINISH

0 TBK TEXTURED BLACK

OBLK SMOOTH SATIN BLACK

0 GRNGREEN 0 SPECIFY

0

OWHT GTGGRANITEWHITE GREEN D

0 ATC ANTIQUECOPPER. STD.Color.

0

0 CLB CUSTOM CLASSIC COLORBRONZE D

0120

0208

0240

VOLTAGE

0 277 0 SPECIFY

0 MULTITAP D

0480

MH: MetalHalide PL,CF,Q:Compact

HPS:HighPressureSodium Fluorescent

LIGHTSOURCE

050MH 050HPS 0 SPECIF

070MH 070HPS II

0100MH 0100HPS L-J

0150MH 0150HPS

0175MH 0175HPS

0 250MH 0250HPS

0 Q28 0 INCANDESCENT

OPL 13 0-

0 CF 0 26 0 32 0 42

GENERAL

EXTERIOR HARDWARE WILL BE

STAINLESS STEEL

ELECTRICAL COMPONENTS WILL BE ETL

LISTED .SUITABLE FOR WET LOCATIONS.

FIXTURE

NONE

BRACKET

NONE

POLE

D4073-14

OTHER COMPONENTS

NONE

DRAWNBY

ANW

CHECKED BY

ANW

NOTES

THIS DRAWINGSHOULDACCOMPANY

YOURORDER THANKYOU
.(4) HEXNUT

STAINLESSSTEEL

(4) FLATWASHER

STAINLESSSTEEL

STAINLESSSTEEL

ANCHOR BOLTSWILL ALIGN

WITH SLOTSIN THEBASE

SPOTWELD TO PREVENT

BOLT FROM BACKING OUT

"iT

12"

DIA. 4.5" AT THECENTER

OF BOLTPLATE,12"X12",

l!2"THICK

(12.5" Be)

REINFORCING

PLATE(4) @90° APART

DIA. 2.5" (WIRING HOLE) IS LOCATED 19" BELOW BOLTPLATE

PROPRIETARYANDCONFIDENTIAL

THE INFORMATION CONTAINED IN THIS

DRAWING ISTHESOLE PROPERTYOF

DYNAMIC LIGHTING. ANY REPRODUCTION

IN PART OR AS A WHOLE WITHOUT THE

WRITTENPERMISSIONOF DYNAMIC

LIGHTING ISPROHIBITED.

DEPARTMENT

T&D

WELDING

WIRING

IASSEMBL Y

PREP.

XPEDITORI

'$I DYNAMIC LIGHTING

FDBE36

03/24/08 I REV.

5" OD FLUTEDPIPE

0.188" WALL

36" LONG

DIMENSIONS ARE IN INCHES

TOLERANCES: DRAWN

FRACTIONALf

ANGULAR: MACHf BEND f CHECKED

TWO PLACE DECIMAL f ENGAPPR.

THREEPLACE DECIMAL f MFGAPPR.

MATERIAL QA

COMMENTS:

FINISH

DO NOT SCALEDRAWING
Table D2. Summary of results for pendulum test 400001-DLI P2.

- ---I

General Information

Test Agency Texas Transportation Institute

Test No. 400001-DLI P2

Date 2008-03-21

Test Article

Type Lighting Pole

Name Dynamic Lighting 26706B

Installation Height 16 ft-5 inches

Material of Key Element Extruded/Cast Aluminum

Soil Type Rigid Metal Reaction Plate

T~~~:~.~~~~~ ./:' 1.\ Bogie

Designati?n .,/. .

~

~

,

"" : \ Pendulum

Test Inertia Mass / '8 839 kg

Impact Conditions /

I I Speed :' .

1 .21 .7 mi/hAngle ' """"""""" 90 deg

Occupant Risk Values

ImpactVelocity

Longitudinal direction """"""""""'''''''' No Contact

Ridedown Accelerations

Longitudinal direction 'l.t,""''''':

Maximum Change in Velocity.

0.097 s

"

Jl~

J

0.146 s

4/25/2008

.I

'I

Page 16 of24 ~T:- . """""--/~
Table DL Summary of results for pendulum test 400001-DLI PI.

0.145 s

4/25/2008

General Information

Test Agency Texas Transportation Institute

Test No. 400001-DLI P1

Date 2008-03-21

Test Article

Type Lighting Pole

Name Dynamic Lighting 26706B w/Ground Stub FDBE36

Installation Height 16 ft-5 inches

Material of Key Element Extruded/Cast Aluminum

Soil Type Standard Soil

Test Vehicle

Type........................................

Designation .

Test Inertia Mass ..................

Impact Conditions I

Speed ../ J Angle .~

Occupant Risk Values

Impact Velocity

Longitudinal direction...........................

Ridedown Accelerations .

Longitudinal direction. ..\~ "'

,

'

Maximum Change in Velocity ~ "

Page 12 of24

Bogie

. Pendulum

839 kg

"..21.7 mi/h , 90deg

No Contact

~~
.155 WALL

THICKNESS

15 FLUTES

1800

270

FIXTURE DETAILS

Materials

Cast Aluminum Fitter

Electrical

4kv Pulse Rated Socket.

The Ballast used shall

be of the High Power

Factor design.

POLE DETAILS

Shaft

05" Extruded Aluminum

#6005-T5 Aluminum

Base

Cast Aluminum (A319 Alloy)

Finish

Powder Coat

Approved By

*DRAWING NOT TO SCALE*

0103/4" B.C.

0123/4" B.C.

ACCESS

DOOR

15'-6"

171/4"

1

I- 017"-1

3 5/8"

NOTICE:

THIS DRAWING IS FOR REFERENCE ONLY.

CHECK FOR LATEST REVISION PRIOR TO

n"'n.""",,,,.

~~VNAM'C

M-.:""IGHT'IVG ,NC.

www.DYNAMICLIGHTING.com

5220 SHANK ROAD PEARLAND, TX. 77581

PHONE:(281)997-5400 FAX:(281) 997-5441

TOLL FREE: (800) 364-0098

Q#26706 5# P#

Date 9-13-07

REC>JUE5T #

267CJ6

Name:

TIT A

LIGHT DISTRIBUTION

8 TYPE III REFRACTOR 0 SPECIFY

TYPEV REFRACTOR ~ 0 STANDARDSYMMETRICAL L-J

0 TYPE III REFLECTOR

0 TYPE V REFLECTOR

FINISH

0 TBK TEXTURED BLACK

0 BLK SMOOTH SATIN BLACK

0 GRN GREEN 0 SPECIFY

0

OWHT GTG GRANITE WHITE GREEN D

0 ATC ANTIQUECOPPER. STD.Color

0

0 CLB

CUSTOMCLASSIC COLORBRONZE D

0120

0208

0240

VOLTAGE

0 277 0 SPECIFY

0480

0 MULTITAP D

MH: MetalHalide PL,CF,Q:Compact

HPS:HighPressureSodium Fluorescent

LIGHTSOURCE

050MH 050HPS 0 SPECIFl

070MH 070HPS ~

0100MH 01 OOHPS L-J

0150MH 0150HPS

0175MH 0175HPS

0 250MH 0250HPS

0 Q28 0 INCANDESCENT

OPL 13 0-

0 CF 0 26 0 32 042

GENERAL

EXTERIOR HARDWARE WILL BE

STAINLESS STEEL

ELECTRICAL COMPONENTS WILL BE ETL

LISTED "SUITABLE FOR WET LOCATIONS"

FIXTURE

NONE

BRACKET

NONE

POLE

D1305-16

OTHER COMPONENTS

NONE

DRAWNBY

ANW

CHECKED BY

ANW

NOTES

THIS DRAWINGSHOULDACCOMPANY

YOURORDER THANKYOU
Table D3. Summary of results for pendulum test 400001-DLI P3.

'., 1

Ji ,

".

4/25/2008

General Information

Test Agency .Texas Transportation Institute

Test No. 400001-DLI P3

Date 2008-03-21

Test Article

Type Lighting Pole

Name Dynamic Lighting 26706A

Installation Height 18 ft-3 inches

Material of Key Element Extruded/Cast Aluminum

Soil Type Rigid Metal Reaction Plate

Test Vehicle

Type"""""""""""""""""""""""~,,,~ Bogie Designation Y Pendulum

Test Inertia Mass j-."""""""""" 839 kg Impact Conditions I

Speed ;

1

""""""'" ..21 .9 mi/h

Ang Ie i """""""""" 90 deg

Occupant Risk Values l

Impact Velocity

Longitudinal direction No Contact

Ridedown Accelerations

Longitudinal direction..........................

MaximumChange in Velocity'\i,""""""

~

; N/A !~ 5.1 ft/s

/~

Page 20 of 24 ~- ...", ~