1200 New Jersey Ave., SE

Washington, O.C. 20590 

February 14, 2018 In Reply Refer To: 

HSST-1/B-298 

Mr. Russell Hood 

Safe Barriers Pte. Ltd. 

PO Box 148 Novena Post Office 

Singapore 913017 

Dear Mr. Hood: 

This letter is in response to your October 9, 2017 request for the Federal Highway 

Administration (FHW A) to review a roadside safety device, hardware, or system for eligibility 

for reimbursement under the Federal-aid highway program. This FHW A letter of eligibility is 

assigned FHW A control number B-298 and is valid until a subsequent letter is issued by FHW A 

that expressly references this device. 

Decision 

The following device is eligible within the length-of-need, with details provided in the form 

which is attached as an integral part of this letter: 

• Defender Barrier 100 LDS 

Scope of this Letter 

To be found eligible for Federal-aid funding, new roadside safety devices should meet the crash 

test and evaluation criteria contained in the American Association of State Highway and 

Transportation Officials' (AASHTO) Manual for Assessing Safety Hardware (MASH). 

However, the FHWA, the Department of Transportation, and the United States Government do 

not regulate the manufacture of roadside safety devices. Eligibility for reimbursement under the 

Federal-aid highway program does not establish approval, certification or endorsement of the 

device for any particular purpose or use. 

This letter is not a determination by the FHW A, the Department of Transportation, or the United 

States Government that a vehicle crash involving the device will result in any particular 

outcome, nor is it a guarantee of the in-service performance of this device. Proper 

manufacturing, installation, and maintenance are required in order for this device to function as 

tested. 

This finding of eligibility is limited to the crashworthiness of the system and does not cover other 

structural features, nor conformity with the Manual on Uniform Traffic Control Devices. 
2 

Eligibility for Reimbursement 

Based solely on a review of crash test results and certifications submitted by the manufacturer, 

and the crash test laboratory, FHWA agrees that the device described herein meets the crash test 

and evaluation criteria of the AASHTO's MASH. Therefore, the device is eligible for 

reimbursement under the Federal-aid highway program if installed under the range of tested 

conditions. 

Name of system: Defender Barrier 100 LOS 


Type of system: Longitudinal Barrier 


Test Level: MASH Test Level 3 (TL3) 


Testing conducted by: Holmes Solutions 


Date ofrequest: October 8, 2017 


Date initially acknowledged: October 15, 2017 


FHWA concurs with the recommendation of the accredited crash testing laboratory on the 

attached form. Though the laboratory conducted Test 3-21 Transition test for an attachment 

between test article and an attenuator and included this test in this submission, this eligibility 

letter is for barrier length of need only. 

Full Description of the Eligible Device 

The device and supporting documentation, including reports of the crash tests or other testing 

done, videos of any crash testing, and/or drawings of the device, are described in the attached 

form. 

Notice 

This eligi~ility letter is issued for the subject device as tested. Modifications made to the device 

are not covered by this letter. Any modifications to this device should be submitted to the user 

(i.e., state DOT) as per their requirements. 

You are expected to supply potential users with sufficient information on design, installation and 

maintenance requirements to ensure proper performance. 

You are expected to certify to potential users that the hardware furnished has the same chemistry, 

mechanical properties, and geometry as that submitted for review, and that it will meet the test 

and evaluation criteria of AASHTO's MASH. 

Issuance of this letter does not convey property rights of any sort or any exclusive privilege. This 

letter is based on the premise that information and reports submitted by you are accurate and 

correct. We reserve the right to modify or revoke this letter if: (1) there are any inaccuracies in 

the information submitted in support of your request for this letter, (2) the qualification testing 

was flawed, (3) in-service performance or other information reveals safety problems, (4) the 
3 

system is significantly different from the version that was crash tested, or (5) any other 

information indicates that the letter was issued in error or otherwise does not reflect full and 

complete information about the crashworthiness of the system. 

Standard Provisions 

• 	 To prevent misunderstanding by others, this letter of eligibility designated as FHWA 

control number B-298 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 upon request. 

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

manufacture, or sell any patented system for which the applicant is not the patent holder. 

• 	 Ifthe subject device is a patented product it may be considered to be proprietary. If 

proprietary systems are specified by a highway agency for use on Federal-aid projects: 

(a) they 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. 

Sincerely, 

Michael S. Griffith 

Director, Office of Safety Technologies 

Office of Safety 

Enclosures 
Version 10.0 (05/16) 

Page 1 of 5 

Request for Federal Aid Reimbursement Eligibility 

of Highway Safety Hardware 

Date of Request: 

Name: 

October 4, 201 7 

Russell Hood 

I le New (' Resubmission 

... 

QJ 

....

.... ·e 

.0 

::I 

VI 

Company: 

Address: 

Country: 

Safe Barriers Pte. Ltd. 

PO Box 148, Novena Post Office, Singapore 913017 

Singapore 

To: Michael S. Griffith, Director 

FHWA, Office of Safety Technologies 

I request the following devices be considered eligible for reimbursement under the Federal-aid 

highway program. 

Device & Testing Criterion - Enter from right to left starting with Test Level 1 I1- - ' I 

System Type Submission Type Device Name I Variant Testing Criterion Test 

Level 

'B': Rigid/Semi-Rigid Barriers 

(Roadside, Median, Bridge 

Railinasl 

le Physical Crash Testing 

(' Engineering Analysis 

Defender Barrier 1OOLDS 

AASHTO MASH TL3 

By submitting this request for review and evaluation by the Federal Highway Administration, I certify 

that the product(s) was (were) tested in conformity with the AASHTO Manual for Assessing Safety 

Hardware and that the evaluation results meet the appropriate evaluation criteria in the MASH . 

Individual or Organization responsible for the product: 

Contact Name: Russell Hood Same as Submitter rgJ 

Campany Name: Safe Barriers Pte. Ltd. Same as Submitter rgJ 

Address: PO Box 148, Novena Post Office, Singapore 913017 Same as Submitter rgJ 

Country: Singapore Same as Submitter rgJ 

Enter below all disclosures of financial interests as required by the FHWA 'Federal-Aid Reimbursement 

Eligibility Process for Safety Hardware Devices' document. 

Holmes Solutions performs crash testing activities for Safe Barriers Pte. Ltd. For the completion of these services, 

Holmes Solutions receive payment in the form of professional fees. In no circumstance are these fees received 

linked to the performance of the product not the outcome of the tests. In accordance with the requirements of 

Holmes Solutions ISO 17025 accreditation, all testing activities are completed free from undue commercial 

influence. 

Holmes Solutions does not have, nor ever had, any financial interest in Safe Barriers or any of the products that 

they sell. Holmes Solutions does not receive and research funding or other forms of payment from Safe Barriers. 

Holmes Solutions have no business ownership or investment interest in Safe Barriers. No licensing ag reements 

exist between Holmes Solutions and Safe Barriers. 
Version 10.0 (05/16) 

Page 2 of 5 

PRODUCT DESCRIPTION 

(e' New Hardware or 

Significant Modification 

(' Modification to 

Existing Hardware 

The Defender BarrierTM 100 LDS (Low Deflection System) is an anchored Test Level 3 longitudinal steel 

temporary barrier system with an integrated Test Level 3 transition consisting of : 

Steel Barrier Segments - Barrier segments are manufactured from 0235B grade steel with a nominal 3.0mm 

wall thickness. Each barrier measures 3960mm (155.9") long x 800mm (31.4") high x 680mm (26.7") wide and 

have a dry weight of 303kg (668.1 lbs). Each of the steel barriers connect together via interlocking flanges and a 

steel galvanized connecting pin at each end. The installed length of each barrier segment is 3900mm (153.S"). 

The two lifting points for the barrier are approximately 1350mm (53.15") apart. 

Connecting Pins - Galvanized connecting pins connecting the barrier segments are manufactured from 0235B 

steel and measure 30mm (1 .18") diameter x 550mm (21.6") long. The top of the pin has a 50mm (2") wide x 

9.Smm (0.37") thick plate welded 5mm down from the top end of the bar. Pins are fitted vertically down 

through interlocking lugs of the barrier segment forming a hinge type joint. 

Ground Anchor Pins - The ground anchor pins that anchor the barrier segments are manufactured from 0235B 

steel and measure 30mm (1.18") diameter x 500mm (19.68"). The top of the pin has a 60mm (2.36") wide x 

20mm (0.78") thick plate welded 5mm down from the top end of the bar. Pins are fitted vertically down 

through purpose made holes for the ground anchor pins, which also function as drain holes. The ground 

anchor pins are not galvanized. The Defender BarrierTM 100 LDS is anchored every 9.15m with 2 ground anchor 

pins, 1 ground anchor pin on each side of the barrier. 

CRASH TESTING 

By signature below, the Engineer affiliated with the testing laboratory, agrees in support of this submission that 

all of the critical and relevant crash tests for this device listed above were conducted to meet the MASH test 

criteria. The Engineer has determined that no other crash tests are necessary to determine the device meets 

the MASH criteria. 

Engineer Name: 

Engineer Signature: 

Emerson Ryder 

Emerson Ryder Digitally signed by Emerson Ryder 

Date: 2018.02.0915:49:32+13'00' 

Address: level 2, 254 Montreal Street, Christchurch Same as Submitter D 

Country: New Zealand Same as Submitter D 

A briet description ot each crash test and its result : 
Version 10.0 (05/16) 

Page 3 of 5 

Required Test 

Number 

Narrative 

Description 

Evaluation 

Results 

3-10 (1100() 

Holmes Crash Test No. 131393.3-1 OLDS was 

performed on 19 July 2017. The Defender 

BarrierTM 100 LDS successfully contained and 

redirected the 11 OOc test vehicle impacting 

the test article at 24.9 degrees and a 

velocity of 99.3 km/h (61.7 mph). Maximum 

dynamic deflection was 0.56m (22 "). 

The test vehicle impacted the test 

installation 1.4m downstream from ground 

anchor pin 9 at ba rrier 8, and 7.7m 

upstream from ground anchor pin 11 at 

barrier 10. The CIP was chosen to maximize 

the OIV and vehicle damage. 

The test article was anchored with 2 ground 

anchor pins (1 each side) at barrier 8 and 

barrier 10, with a distance of 9.1 Sm 

between anchors. 

The test article was anchored to 1SOmm (6") 

asphalt over 1 SOmm (6") compacted subbase. 

No debris or detached elements penetrated 

or showed potential to penetrate the 

occupant compartment. No fragments 

were distributed outside of the vehicle 

trajectory. The trajectory of the vehicle was 

such that it did not present any undue 

hazard to other traffic, pedestrians or work 

zone personnel. 

The vehicle remained upright during and 

after the impact and vehicle stability was 

considered satisfactory. Occupant risk 

factors satisfied the test criteria and the 

vehicle trajectory remained within 

acceptable limits. 

PASS 
Version 10.0 (05/16) 

Page 4 of 5 

Required Test 

Number 

Narrative 

Description 

Evaluation 

Results 

3-11 (2270P) 

Holmes Crash Test No. 131393.3-11 LOS was 

performed on 28 February 2017. The 

Defender BarrierTM 100 LOS successfully 

contained and redirected the 2270P test 

vehicle impacting the test article at 24.9 

degrees and a velocity of 101.3 km/h (62.9 

mph). Maximum dynamic deflection was 

0.88m (34.6"). 

The test vehicle impacted the test 

installation 2.3m downstream from ground 

anchor pin 9 at barrier 8, and 6.8m 

upstream from ground anchor pin 11 at 

barrier 10. The CIP was chosen to test the 

containment and vehicle stability while also 

imparting the most amount of load on the 

connection detail. 

The test article was anchored with 2 ground 

anchor pins (1 each side) at barrier 8 and 

barrier 10, with a distance of 9.1 Sm 

between anchors. PASS 

The test article was anchored to 1SOmm (6") 

asphalt over 1 SOmm (6") compacted subbase. 

No debris or detached elements penetrated 

or showed potential to penetrate the 

occupant compartment. No fragments 

were distributed outside of the vehicle 

trajectory. The trajectory of the vehicle was 

such that it did not present any undue 

hazard to other traffic, pedestrians or work 

zone personnel. 

The vehicle remained upright during and 

after the impact and vehicle stability was 

considered satisfactory. Occupant risk 

factors satisfied the test criteria and the 

vehicle trajectory remained within 

acceptable limits. 

3-20 (11 OOC) Non-Relevant Test, not conducted 

3-21 (2270P) Non-Relevant Test, not conducted 

Full Scale Crash Testing was done in compliance with MASH by the following accredited crash test 

laboratory (cite the laboratory's accreditation status as noted in the crash test reports.): 
Version 10.0 (05/16) 

Page 5 of 5 

Laboratory Name: 

Laboratory Signature: 

Holmes Solutions 

Emerson Ryder Digitally signed by Emerson Ryder 

Date: 2018.02.09 15:50:22+13'00' 

Address: level 2, 254 Montreal Street, Christchurch Same as Submitter D 

Country: New Zealand Same as Submitter D 

Accreditation Certificate 

Number and Dates of current 

Accreditation period : 

7559 

1022 

23 July 2009 to present day 

NZS ISO/IEC 17025:2005 

Submitter Signature*: Russell Hood ~.~:~~~,·~ ;,~ty,:7 . 

Submit Form 

ATTACHMENTS 

Attach to this form: 


I) Additional disclosures of related financial interest as indicated above. 


2) A copy of the full test report, video, and a Test Data Summary Sheet for each test conducted in 


support of this request. 

3) A drawing or drawings of the device(s) that conform to the Task Force-13 Drawing Specifications 

[Hardware Guide Drawing Standards]. For proprietary products, a single isometric line drawing is 

usually acceptable to illustrate the product, with detailed specifications, intended use, and contact 

information provided on the reverse. Additional drawings (not in TF-13 format) showing details that 

are relevant to understanding the dimensions and performance of the device should also be submitted 

to facilitate our review. 

FHWA Official Business Only: 

Eligibility Letter 

Number Date Key Words 
~--------------- ,,,,,.,,"'' ........ 

,,,,"'"' ....... _,/' 

.... 

54.0 m CIP 

Test Article: Safe Barriers STBS - Defender 100LDS 

Total Len th 78.0 m 

Kel:l Elements - Barrier 

Description 

Length of Barrier Installation 

Height 

Len th of Barrier Se ments 

Test Vehicle 

Designation 

Make/Model 

Dimensions (LxWxH) 

Curb Wt 

Test Inertial Wt 

Gross Static 

Impact Conditions 

Speed 

Angle 

Im act Point 

Exit Conditions 

Exit Speed: 

Exit An le: 

Test 3-10 

Ground anchored every second barrier STBS 

78.0 m length of need 

0.80 m 

3.9 m 

1100C 

Nissan Tiida 

4320 mm x 1695 mm x 1520 mm 

1050 kg 

1075 kg 

1150 k 

99.3 km/h 

24.9 degrees 

1040 mm u stream of barrier "oint 8B 

86.4 km/h 

12° Est 

Test Number 131393.3-10LDS 

Test Date 19 Jul 2017 

20 m 

Post Impact Vehicle Behaviour 

Vehicle Stability 

Sto in Distance 

Occupant Impact Velocit1:4 (m/s) 

Longitudinal 

Lateral o tional 

Occupant Ride-down Deceleration 


X-direction (g) 


Y-direction (g) 


THIV (optional) (m/s) 


PHO (optional) (g) 


ASI o tional 

Test Article Deflections 

Dynamic 

Permanent 

Workin Width 

Vehicle Damage Exterior 

VOS 

CDC 

Maximum Deformation 

Good 

54.0 111 

None 

None 

0.1100 SeCOfldr right r1dt of in• It '> 

4. 5 

-6.6 

·6.8 (2.4405 • 2.4505 r C.Ofldr)

11.4 (0.1530 - 0.1630 r.:co1 d 1 

7.8 

12.4 (0.1529 - 0.1629 t.:COI j l 

1.11 0.0249 - 0.0749 'UCCJlld 

Minor 

0.56 rn 

0.29 Ill 

0.56 rn 

11FL-2 

11LFEE2 

110 mm 

Ul:l'i'l 11 Iii' 1111/ • I 


I 1·1 1'1 I ; 

,/////·--------­S.lm ~--------' 6 .7 m 

---­

35.0 CIP 

10 m 

Test Article: Safe Barriers STBS - Defender 100LDS Post Impact Vehicle Behaviour 

Total Len th 78.0 m Vehicle Stabilit!::J Good 

Sto 

ASI o tional 

Ke!::l Elements - Barrier Test 3-11 36.0 m

Description Ground anchored ever!::J second barrier STBS None 

Length of Barrier Installation 78.0 m length of need None 

Height 0.80 m Occupant Impact Velocit!::l (m/s) 0.1463 r.econ d· 011 front of i11tt.r "' 

Len th of Barrier Se ments 3.9 m Longitudinal 4.3 

Test Vehicle Lateral o tional 4.3

Designation 2270P Occupant Ride-down Deceleration 

Make/Model Dodge Ram 1600 Quad Cab X-direction (g) -16.8 (0.1977 - 0.2077 •c:co11d J

Dimensions (LxWxH) 6710 mm x 2010 mm x 1890 mm Y-direction (g) -10.0 (0.1466 - 0.1666 'C:COfld•]

Curb Wt 2212.0 kg THIV (optional) (m/s) 6.1 

Test Inertial Wt 2276.0 kg PHD (optional) (g) 16.9 (0.1916- 0.2075 tcond 

Gross Static 2276.0 k 0.81 0.1251 - 0.1761 "VCOfld 1 

Impact Conditions Moderute 

Speed 101.3 krn /h Test Article Deflections 

Angle 24.9 degrees D!::Jnarnic 0.88 Ill 

Im act Point 320 rnm u stream of barrier "oint 8B Permanent 0.67 Ill 

Exit Conditions Workin Width 0.88 Ill 

Exit Speed: 61 km/ h Vehicle Damage Exterior 

Exit An le: 6.0° VDS 11FL-3 

Test Number 131393.3-11LDS CDC 11LFEE3 

Test Date 28 Februar 2017 Maximum Deformation 216 mm 

m 

131:l'll 'l'llli> 11111 ;I 

I' I,," . ,,, 

I