1200 New Jersey Ave., SE 

 Washington, D.C. 20590 

September 7, 2016 

In Reply Refer To: 

HSST-1/CC-103C 

Mr. Gerrit Dyke, P.E. 

Lindsay Transportation Solutions 

180 River Road 

Rio Vista, CA 94571 

Dear Mr. Dyke: 

This letter is in response to your December 23, 2015 request for the Federal Highway 

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

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

assigned FHWA control number CC-103C and is valid until a subsequent letter is issued by 

FHWA that expressly references this device. 

Decision 

The following devices are eligible, with details provided in the form which is attached as an 

integral part of this letter: 

• UMAD TTMA Modifications 

Scope of this Letter 

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

crash test and evaluation criteria contained in the National Cooperative Highway Research 

Program (NCHRP) Report 350. 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 FHWA, 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 

FHWA previously issued an eligibility letter for the roadside safety system described in your 

pending request. Your pending request now identifies a modification to that roadside safety 

system. 

The original roadside safety device information is provided here: 

Name of system: UMAD TTMA Modifications 

Type of system: Crash Cushion 

Date of original request: March 21, 2008 

Date of original FHWA eligibility letter: October 6, 2008 

FHWA Control number: CC-103 

The pending modification(s) consists of the following changes: 

1.	 Modified Logo 

2.	 Substituted hydraulic cylinder from a different manufacturer 

3.	 Alternative electrical plug between lights and support vehicle 

FHWA concurs with the recommendation of the accredited crash testing laboratory as stated 

within the attached form. 

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 

If a manufacturer makes any modification to any of their roadside safety hardware that has an 

existing eligibility letter from FHWA, the manufacturer must notify FHWA of such modification 

with a request for continued eligibility for reimbursement. The notice of all modifications to a 

device must be accompanied by: 

o	 Significant modifications – For these modifications, crash test results must be 

submitted with accompanying documentation and videos. 

o	 Non-signification modifications – For these modifications, a statement from the 

crash test laboratory on the potential effect of the modification on the ability of 

the device to meet the relevant crash test criteria. 

FHWA's determination of continued eligibility for the modified hardware will be based on 

whether the modified hardware will continue to meet the relevant crash test criteria. 

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

maintenance requirements to ensure proper performance. 
3 

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 c riteria of the NCH RP Report 350. 

Issuance ofthis Jetter does not convey property rights of any sort or any exclusive privilege. 

This letter is based on the premise that information and reports submi lted by you are accurate 

and correct. We reserve the right to modify or revoke this Jetter if: (1) there arc any inaccuracies 

in the infonnation submitted in support of your request for this Jetter, (2) the qualification testing 

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

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

information indicates that the let1er was issued in e rror or otherwise does not re nect full and 

complete information abo ut the crash worthiness ofthe system. 

Standa rd Prov isions 

• 	 To prevent misunderstanding by others. this lellcr of eligibility designated as FIIWA 

control number CC-103C 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 au thorization or consent by the FHWA 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. Tf 

proprietary systems are specified by a high'vvay agency for use on Federal-aid projects: 

(a) they must be supplied through competitive bidding with equally suitable unpatentcd 

items; (b) the highway agency must certify 1hat they are essential for synchronization 

with the existing highway facilities or that no equally suitable a lternative 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 regula!ions concerning proprietary 

products are contained in Title 23, Code of Federal Regulations, Section 635.411. 

Sincerely yours, 

Michael S. Griffith 

Director, Office of Safety Technologies 

Office of Safety 

Enclosures 
 Version 10.0 (05/16) 

Page 1 of 4 

Request for Federal Aid Reimbursement Eligibility

of Highway Safety Hardware 

Submitter

 Date of Request: December 23, 2015 New Resubmission 

Name: Gerrit Dyke, P.E. 

Company: Lindsay Transportation Solutions 

Address: 180 River Road, Rio Vista, CA, 94571 

Country: USA

 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 ! - ! - ! 

System Type Submission Type Device Name / Variant Testing Criterion Test 

Level 

'CC': Truck-Mounted 

Attenuators (TMA) 

Physical Crash Testing 

Engineering Analysis 

UMAD TTMA 

NCHRP Report 350 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 NCHRP Report 350 (Report 350) and that 

the evaluation results meet the appropriate evaluation criteria in the Report 350. 

Individual or Organization responsible for the product: 

Contact Name: Gerrit Dyke, P.E. Same as Submitter 

Company Name: Lindsay Transportation Solutions Same as Submitter 

Address: 180 River Road, Rio Vista, CA, 94571 Same as Submitter 

Country: USA Same as Submitter 

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

Eligibility Process for Safety Hardware Devices' document. 

Safe Technologies, Inc. (STI) performs testing and analysis services for Lindsay Transportation Solutions, Inc. 

(LTS). STI is a wholly owned subsidiary of LTS. STI is a fully accredited crash test facility by A2LA to ISO 17025 and 

recognized by the US Federal Highway Administration (FHWA) to perform full scale crash tests per NCHRP 

Report 350 and MASH criteria. STI also performs crash tests per the European EN1317 criteria in conjunction with 

an independent Notified Body. An Advisory Board includes third party industry experts and provides oversight 

and guidance to the laboratory management. 

The STI laboratory manager, technicians, and laborers are compensated by LTS for salaries and wages. The STI 

staff does not receive any incentive, compensation, commissions, or professional fees corresponding to the 

outcome of any testing or analysis. The third party members of the Advisory Board are typically paid consultants. 

STI or staff does not receive any research funding or other research support from LTS. STI and staff also do not 

have any financial interest in patents, copyrights, or other intellectual property associated with the products 

they perform testing or analysis on. 
 Version 10.0 (05/16) 

Page 2 of 4 

PRODUCT DESCRIPTION 

New Hardware or 

Significant Modification 

Modification to 

Existing Hardware Non-Significant 

The U-MAD Trailer Mounted Crash Cushion is currently eligible for use under FHWA letter HSSD/CC-99 and 

subsequently HSSD/CC-103. 

1) The first proposed modification is a change to the Logo on the Serial Number label identifying the product. 

The existing label depicts the old "BARRIER SYSTEMS" logo. Over the last few years Lindsay Transportation 

Solutions has been updating their logos on all internal and external documents as well as many of their 

nameplates. This change is consistent with that internal requirement. 

The label size, material, installation, location on the product and contents is not changing except for the 

company name and logo. Therefore, the modification represents no change to the function, capacity or 

performance of the component and system. 

2) The second request has to do with the hydraulic cylinder used as a dampener in the tow assembly of the 

trailer. The existing supplier, Bailey, is discontinuing production of this cylinder. As a result, LTS is forced to 

source an equivalent alternative. Dalton produces a cylinder with identical performance ratings. Both cylinders 

have the same length, attachment features, port sizes, bore size and piston size. Both cylinders have the same 

working pressure rating of 2,500 psi. The only noticeable difference is found in their testing. Bailey claims to 

have tested their cylinders up to 3,750 psi while Dalton tests their cylinders at the rated specification of 2,500 

psi. The U-MAD TTMA was designed based on the rated pressure of 2,500 psi hence the excess capacity 

demonstrated by the Bailey does not affect the impact performance of the trailer. The trailer is equipped with 

two anti rotation arms that bear against the rear bumper of the support vehicle. As the impacting vehicle 

compresses the cylinder these anti rotation arms prevent the cylinder from reaching a fully retracted state 

hence never exercising the cylinder to it's full capacity. Therefore, the replacement cylinder represents no 

change to the function, capacity or performance of the TTMA. 

3) The third request is to allow for the use of an alternative electrical plug that connects the trailer lights to the 

support vehicle. The cable harness does not come into play during crash testing henceforth an alternative plug 

represents no change to the function, capacity or performance of the TTMA. 

CRASH TESTING 

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

the Modification to Existing Hardware is deemed Non-significant for the device listed above to meet the MASH 

criteria. 

Engineer Name: Joseph Nagy 

Engineer Signature: Joseph Nagy Digitally signed by Joseph Nagy 

Date: 2016.08.15 11:11:32 -07'00' 

Address: 170 River Road, Rio Vista, CA 94571 Same as Submitter 

Country: USA Same as Submitter

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

Page 3 of 4 

Required Test 

Number 

Narrative 

Description 

Evaluation 

Results 

3-50 (820C) 

This test was considered irrelevant and not 

critical at the time of testing since the 

UMAD cartridge has already been tested 

while mounted directly to a support vehicle 

and the trailer has been tested in 

conjunction with another crash cushion. 

The proposed modifications represents no 

change to the function, capacity or 

performance of the UMAD Trailer system. 

Non-Relevant Test, not conducted 

S3-50 (700C) 

Optional test, was not run. The proposed 

modifications represents no change to the 

function, capacity or performance of the 

UMAD Trailer system. 

Non-Relevant Test, not conducted 

3-51 (2000P) 

This test was originally run to support 

eligibility letter HSSD/CC-103. The 

proposed modifications represents no 

change to the function, capacity or 

performance of the UMAD Trailer system. 

Modification has no effect on crashworthiness 

3-52 (2000P) 

This test was originally run to support 

eligibility letter HSSD/CC-99. The proposed 

modifications represents no change to the 

function, capacity or performance of the 

UMAD Trailer system. 

Modification has no effect on crashworthiness 

3-53 (2000P) 

Optional test, was not run. The proposed 

modifications represents no change to the 

function, capacity or performance of the 

UMAD Trailer system. 

Non-Relevant Test, not conducted 

Testing Laboratory's signature concurs that these modifications are considered Non-Significant. 

Laboratory Name: Safe Technologies, Inc. 

Laboratory Signature: Joseph Nagy Digitally signed by Joseph Nagy 

Date: 2016.08.15 11:20:25 -07'00' 

Address: 170 River Road, Rio Vista, CA 94571 Same as Submitter 

Country: USA Same as Submitter 

Accreditation Certificate 

Number and Dates of current 

Accreditation period : 

1851.01, Valid through March 31, 2018 

*: Gerrit Dyke Digitally signed by Gerrit Dyke

Date: 2016.08.15 11:21:21 

-07'00' Submitter Signature

Submit Form 

ATTACHMENTS
 
 Version 10.0 (05/16) 

Page 4 of 4 

Attach to this form: 

1) 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 
• 

.." 

• 

• 
 "..._ 

l 

HO"tS. UM.I•O'l"OI~ tftlel't:O 

• .t..S.!IOH•CDOC\.i!:•~-.iwt!RUS~ U.-.O~N)l,J ArACM•ll'VlD~ 

..toe.ow._ 0 ~ -'' --~~O!Ul#~lf<ttlN 

~ n119\'1,lll.'..:Jf0"°" 


c 

• 

• 

IDI f o"" ~~· 

Cc. I ICl>'!ot """"""' • 

© 2)(• • 

~'tw'~ ·: :·~~ 

APPROVALS 

-r """""" 

-

~~':1811' . ll\; 

~I .a.....1

"" ..«::n. ... . 

~~~:or .. •-l IOI~ 

$E3 A 

0 

DOmlc- H..-~ """ 

,,.. """rJ(iG EC'f 

' 

0'1/IJ/13 

'"""'°'

DA1" 

c 
D 

c 

A 

8 

HQt'E1' '1'-4WOOiteM5.f ftCffQ. 

I 1CIO.EPlll'rlt!mCBf'£\IJ 

8 

7 s 

....... 

SCALE 1: 2 

....... 

2'( 211 fX I 

.. ., 

3