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Federal Highway 

Administration 

1200 New Jersey Ave., SE 

Washington, D.C. 20590 

May 17, 2018 In Reply Refer To: 

HSST-1/B-304 

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 February 1, 2018 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 FHWA letter of eligibility is 

assigned FHW A control number B-304 and is valid until a subsequent letter is issued by FHWA 

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: 

• QuickChange Moveable Barrier Steel Reactive Tension System (QMBSRTS) 

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: QuickChange Moveable Barrier Steel Reactive Tension System 

(QMBSRTS) 

Type of system: Longitudinal Barrier (unanchored) 

Test Level: MASH Test Level 3 (TL3) 

Testing conducted by: Texas A&M Transportation Institute (TamTI) 

Date ofrequest: March 9, 2018 

Date initially acknowledged: March 20, 2018 

Date of completed package: March 9, 2018 

FHW A concurs with the recommendation of the accredited crash testing laboratory on 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 

This eligibility 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 

system is significantly different from the version that was crash tested, or (5) any other 
3 

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

complete information about the crash worthiness of the system. 

Standard Provisions 

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

control number 8-304 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 FHWA to use, 

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

• This FHWA eligibility letter is not an expression of any Agency view, position, or 

determination of validity, scope, or ownership of any intellectual property rights to a 

specific device or design. Further, this letter does not impute any distribution or licensing 

rights to the requester. This FHWA eligibility letter determination is made based solely 

on the crash-testing information submitted by the requester. The FHWA reserves the 

right to review and revoke an earlier eligibility determination after receipt of subsequent 

information related to crash testing. 

• 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 63 5 .411. 

Director, Office of Safety Technologies 

Office of Safety 

SincerelY., 

Enclosures 
Version 10.0 {05/16) 

Page 1 of 4 

Request for Federal Aid Reimbursement Eligibility 

of Highway Safety Hardware 

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Date of Request: February 01 , 2018 (e New r Resubmission I 

Name: Gerrit A. Dyke, P.E. 

Company: Lindsay Transportation Solutions, Inc. 

Address: 180 River Road, Rio Vista, CA 95471 

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 I! - ! - ! I 

System Type Submission Type Device Name / Variant Testing Criterion Test 

Level 

'B': Rigid/Semi-Rigid Barriers 

(Roadside, Median, Bridge 

Railings) 

(e Physical Crash Testing 

(' Engineering Analysis 

QuickChange Moveable 

Barrier Steel Reactive 

Tension System (QMBSRTS) 

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: Gerrit A. Dyke, P.E. Same as Submitter ~ 

Company Name: Lindsay Transportation Solutions, Inc. Same as Submitter ~ 

Address: 180 River Road, Rio Vista, CA 95471 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. 

Texas A&M Transportation Institute (TTI) was contracted by Lindsay Transportation Solutions, Inc. (L TS) to 

perform full-scale crash testing of the Steel Reactive Tension Quickchange® Movable Barrier System (SRTS). 

There are no shared financial interests in the SRTS by TTI, or between L TS and TTI, other than the costs involved 

in the actual crash tests and reports for this submission to FHWA. TTI employees have, and may in the future, 

provided consu lting services to LTS unrelated to the current testing and evaluation of this product. 
Version 10.0 (05/16) 

Page 2 of 4 

PRODUCT DESCRIPTION 

(e New Hardware or 

• Significant Modification 

(' Modification to 

Existing Hardware 

The Steel Reactive Tension Quickchange® Movable Barrier System (SRTS) is an unanchored longitudinal 

barrier capable of rapid lateral transfer by a transfer vehicle. The SRTS is designed to meet the rigid 

requirements of deployment in movable barrier applications where positive separation is required and where 

lane widths and lateral space are limited. 

The SRTS barrier element is fabricated out of a steel shell and filled with unreinforced concrete. The elements 

are connected end to end with tensioning hinge mechanisms and steel pins. Each barrier segment is 

approximately 39 in (1.0 m) long (pin to pin) and weighs approximately 1600 lb (725 kg). The barrier elements 

have an effective width of 13 in (460 mm] with a low profile 24 in (610 mm] base plate. Variable length barriers 

(VLB) are used in conjunction with the concrete filled segments. The system is applicable to asphalt or 

concrete road surfaces. 

The SRTS can be utilized with or without VLBs. VLB positioning is configured in accordance with the 

requirements of the barrier application. Typical VLB spacing is 1 in 17 SRTS barrier segments or fewer, 

however, some applications may require more. 

The SRTS pin used to link the barrier segments utilizes a washer and retaining clip to minimize maintenance 

of the connection during transfer operations. The washer and retaining clip do not effect the capacity of the 

joint or the function or performance of the barrier system. The SRTS can be deployed with or without the 

washer and retaining clip. 

A series of insignificant modifications to the SRTS barrier were submitted and deemed eligible under NCHRP 

Report 350 including alternative retaining clips, pusher plates, and VLB hydraulic reservoir cap (Reference 

FHWA letter B-69E). These alternative components are integrated into the MASH tested configuration. The 

original components may also be applied to the SRTS eligible under MASH. In addition, alternative corrosion 

resistant coatings may be applied and used on SRTS and VLB hardware, including the integral tension spring, 

as the coatings do not effect the capacity, function, or performance of the hardware or SRTS system. 

The SRTS system was tested to MASH using a 5/8" thick rubber foot. Alternative foot designs may be utilized 

as long as they maintain an equivalent durometer, coefficient of friction, and equal or stronger connection. An 

acceptable alternative foot includes the 1 /2" thick rubber foot used on prior NCHRP 350 certified SRTS. 

Markings may be stamped into the steel or concrete for identification, quality assurance, and tracking. The 

markings may be alpha numeric characters set into the top of the barrier. In some cases, a metal identification 

tag may be fastened to the barrier. 

Applying lane striping or delineation to the barrier segments with paint or reflective tape is acceptable. 

Applying low profile adhesive or anchored reflectors is also acceptable. When applied to the base plate or 

barrier top or sides, the capacity, function, or performance of the SRTS is not effected. 

Manufacturing drawings may be adjusted to ensure manufacturing capability and consistency with MASH 

tested and certified product. 

The test installation consisted of a total of 176 SRTS barriers (Model BSl-1706058-00). The total length of the 

barrier installation was approximately 578-ft 6-inches (176.3 m). Two of the 176 segments (#89 and #106) were 

VLBs (Model BSl-1706031-00). The barriers were installed on a 6-to-7-inch (152-178 mm) thick concrete apron. 

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: D. Lance Bullard, Jr. 

D. La nee Bu Ila rd , Jr. Digitally signed by D. Lance Bullard, Jr.

Date: 2018.03.02 15:56:1 3 -06'00' Engineer Signature: 

Address: TTI, TAMU 3135, College Station, TX 77843-3135 Same as Submitter D 

Country: USA Same as Submitter D 
Version 10.0 (05/16) 

Page 3 of 4 

A brief description of each crash test and its result : 

Required Test 

Number 

Narrative 

Description 

Evaluation 

Results 

3-10 ( 1 lO0C) 

TTI Crash Test No. 690900-L TS3: The SRTS 

Barrier contained and redirected the 11 00c 

vehicle. The vehicle did not penetrate, 

underride, or override the installation. 

Maximum dynamic deflection during the 

test was 27.6 inches (701 mm). No 

detached elements, fragments, or other 

debris were present to penetrate or show 

potential for penetrating the occupant 

compartment, or present a hazard to others 

in the area . Max occupant compartment 

deformation was 0.5 inches (13 mm), well 

within the allowable limits. Maximum roll 

and pitch angles were 9 degrees and 5 

degrees, respectively. Occupant risk factors 

were within the preferred limits specified in 

MASH. 

PASS 

3-11 (2270P) 

3-20 (11 00C) 

3-21 (2270P) 

TTI Crash Test No. 690900-L TS4: The SRTS 

Barrier contained and redirected the 2270P 

vehicle. The vehicle did not penetrate, 

underride, or override the installation. 

Maximum dynamic deflection during the 

test was 47.6 inches (1209 mm). No 

detached elements, fragments, or other 

debris were present to penetrate or show 

potential for penetrating the occupant 

compartment, or present a hazard to others 

in the area. No occupant compartment 

deformation or intrusion occurred. 

Maximum roll and pitch angles were 25 

degrees and 5 degrees, respectively. 

Occupant risk factors were within the 

preferred limits specified in MASH. 

Test not performed. The SRTS is a stand 

alone barrier system that will not transition 

to any stiffer or more rigid barrier systems. 

Therefore, test 3-20 is not required . 

Test not performed. The SRTS is a stand 

alone barrier system that will not transition 

to any stiffer or more rigid barrier systems. 

Therefore, test 3-21 is not required. 

PASS 

Non-Relevant Test, not conducted 

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 4 of 4 

Laboratory Name: Texas A&M Transportation Institute (TTI) 

Laboratory Signature: Digitally signed by Darrell L. Kuhn Darrell L. Kuhn Date: 2018.03.02 16:01 :29 -06'00' 

Address: TTI, TAMU 3135, College Station, TX 77843-3135 Same as Submitter D 

Country: USA Same as Submitter D 

Accreditation Certificate 

Number and Dates of current

Accreditation period : 

ISO 17025 Laboratory 

Certificate Number: 2821 .01 

Valid To: April 30, 2019 

. D k 

Submitter Signature*: 

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 

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General Information 

Test Agency ................ ........ Texas A&M Transportation Institute (TTI) 

Test Standard Test No ........ MASH Test 3-10 

TTI Test No. . .. ....... 690900-LTS3 

Test Date .... ......... ............... 2017-07-18 

Test Article 

Type .................................... Portable Concrete Barrier 

Name .............. .................... Steel RTS Barrier 

Installation Length ............... 578 ft 5 inches 

Material or Key Elements .... 174 concrete filled steel barrier segments 

37 inches (940 mm) long x 323⁄4 inches 

(822 mm) tall plus two variable length 

barriers (VLB) 

Soil Type and Condition .. .... Concrete surface, damp 

Test Vehicle 

Type/Designation ............... 11 00C 

Make and Model ................. 2011 Kia Rio 

Curb .................................... 2448 lb (1110 kg) N 

0 Test Inertial ......................... 2421 lb (1098 kg) 

Dummy ................................ 165 lb (75 kg) -..J 

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I Gross Static .... .. .................. 2586 lb (1173 kg) 

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Impact Conditions 

Speed ................................ 62.4 mi/h (100.4 km/h) 

Angle ................................. 24.8 degrees 

Location/Orientation .. .. ...... .7.0 inches (178 mm) 

up of cntr 58 (bumper) 

Impact Severity ....................55 kip-ft (75 kJ) 

Exit Conditions 

Speed .............................. ..43.3 mi/h 

Angle .................................. 12.8 degrees 

Occupant Risk Values 

Longitudinal OIV .... .. .......... 18.0 ft/s (5.5 m/s) 

Lateral OIV ........................ 24.6 ft/s(7.5 mis) 

Longitudinal Ridedown ...... 6.8 g 

Lateral Ridedown ............... 9.6 g 

THIV ............. .................. ....33.7 km/h 

PHO ................................... 11.4 g 

ASI .... .. ............................... 1.94 

Max. 0.050-s Average 

Longitudinal ... .. ......... -10.1 g 

Lateral. .................... ........ 15.1 g 

Vertical ............................ -2.6 g 

Post-Impact Trajectory 

Stopping Distance .................. 160 ft (49 m) dwnstrm 

13 ft (4 m) twd traffic 

Vehicle Stability 

Maximum Yaw Angle .. .. .......... 53 degrees 

Maximum Pitch Angle ............. 5 degrees 

Maximum Roll Angle ............... 9 degrees 

Vehicle Snagging .................... No 

Vehicle Pocketing ................... No 

Test Article Deflections 

Dynamic .................................. 27.6 inches (701 mm) 

Permanent .. ............................ 26.5 inches (673 mm) 

Working Width* ....................... 39.5 inches (1 003 mm) 

Height of Working Width ......... 32.6 inches (882 mm) 

Vehicle Damage 

VOS ........................................ 11LFQ3 

CDC ........................................ 11 FLEW3 

Max. Exterior Deformation ...... 10.0 inches 

OCDI ... ........ ............................ LF0010000 

Max. Occupant Compart. 

Deformation ......................... 0.5 inches (13 mm) 

Figure 5.8. Summary of Results for MASH Test 3-10 on Steel RTS Barriers. 

* Does not include 5.5-inch toe flange 

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General Information 

Test Agency ....... . ...... Texas A&M Transportation Institute (TTI) 

Test Standard Test No ....... MASH Test 3-11 

TTI Test No. . ............. .. .... 690900-L TS4 

Test Date ...... .............. ..... 2017-07-17 

Test Article 

Type .. .. ...... .......... ............. Portable Concrete Barrier 

Name ............................... Steel RTS Barrier 

Installation Length .... .. ........ 578 ft 5 inches 

Material or Key Elements... 174 concrete filled steel barrier segments 

37 inches (940 mm) long x 321⁄4 inches 

(822 mm) ta ll plus two variable length 

barriers (VLB) 

Soil Type and Condition .. ... Concrete surface, damp 

Test Vehicle 

Type/Designation ............... 2270P 

Make and Model ............ .... 2011 Dodge RAM 1500 Pickup 

Curb ......................... ...... ... . 4938 lb (2240 kg) N 

0 Test Inertial .............. ... .... ... 5030 lb (2282 kg) 

Dummy ................... ......... No dummy --..I 

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I Gross Static ......... .. ........ .. .. 5030 lb (2282 kg) 

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Impact Conditions 

Speed ................... ............. 62.3 mi/h (100.3 km/h) 

Angle .................................25.1 degrees 

Location/Orientation .......... 11 .5 inches (292 mm) 

upstrm of CL of 

segment 87(bumper) 

Impact Severity ...... .. 117 kip-ft (159 kJ) 

Exit Conditions 

Speed ............................. ..45.7 mi/h 

Angle .................................. 11 .8 degrees 

Occupant Risk Values 

Longitudinal OIV ................ 14.1 ft/s (4.3 m/s) 

Lateral OIV ......................... 18.7 ft/s (5.7 m/s) 

Longitudinal Ridedown ... ...4.8 g 

Lateral Ridedown ... ... ...... ... 9.4 g 

THIV ................ .. ................ 25.2 km/h 

PHO ...... .. .................... ....... 10.0g 

ASI ..................................... 1.19 

Max. 0.050-s Average 

Longitudinal .................... -6.1 g 

Lateral. ....... ................. .... 9.5 g 

Vertical. ....................... ... 2.9 g 

Post-Impact Trajectory 

Stopping Distance . .... 270 ft (82 m) dwnstrm 

67 ft (20 m) twd traffic 

Vehicle Stability 

Maximum Yaw Angle ..... 50 degrees 

Maximum Pitch Angle .......... 5 degrees 

Maximum Roll Angle ..... .. ...... 25 degrees 

Vehicle Snagging .................. No 

Vehicle Pocketing .................. No 

Test Article Deflections 

Dynamic .......... ... .................... 47.6 inches (1209 mm) 

Permanent.. ................. . ......... 46.5 inches (1 181 mm) 

Working Width•. ......... . ..... 59.6 inches (1514 mm) 

Vehicle Intrusion ..... ................ 32.6 inches (828 mm) 

Vehicle Damage 

VOS ..... .. ........... ................... .. . 11LFQ4 

CDC .................................... .. .. 11 FLEW4 

Max. Exterior Deformation .. .. .. 14.0 inches (356 mm) 

OCDI ... .......... .. ........... ............ LF0000000 

Max. Occupant Compart. 

Deformation ......... . None 

Figure 6.9. Summary of Results for MASH Test 3-11 on Steel RTS Barriers. 

• Does not include 5.5-inch toe flange 

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INTENDED USE 

The Steel Reactive Tension® QuickChange® Moveable Barrier System (SRTS) is a MASH TL-3 longitudinal 

barrier capable of rapid lateral transfer by a transfer vehicle. SRTS is designed to meet the rigid requirements of 

deployment in moveable barrier applications where positive separation is required and where lane widths and lateral 

space are lim ited. The SRTS system is unanchored and has low deflection during vehicle impacts. 

SRTS MASH TL-3 is a steel shelled barrier filled with high strength concrete, connected end to end with tensioning 

hinge mechanisms ansd steel pins. Each barrier segment is approximately 39 in [ 1.0 m] in length and weighs 

approximately 1600 lb [725 kg]. The barrier has a 24 in [610 mm] wide base and and 13 in [330 mm] effective 

barrier width. 

Specially constructed transfer machines are used to lift, move, and reposition the barrier laterally on the roadway. 

Transfer vehicles are capable of moving the barrier wall up to 24 ft [7.5 m] at up to IO mph [ I6 kph] on a permanent 

system and up to 5 mph [8 kph] for a temporary or construction system. 

SRTS is used as median barrier on congested roadways to open and close lanes of traffic to adapt to changing traffic 

volumes during commuting hours or special events. It is also used to open and close construction zones on a 

periodic basis to increase safety, workspace, reduce congestion, and improve construction worker productivity. 

The SRTS barrier is compatible with the ABSORB 350® Crash Cushion (SCI 11 ). 

APPROVALS 

The Steel Reactive Tension® QuickChange® Moveable Barrier System has been fully tested in conformance with 

MASH Test Level 3 and determined eligible for federal reimbursement by the FHWA. 

FHWA Eligibility Letter: TBD 

CONTACT INFORMATION 

Lindsay Transportation Solutions 

180 River Rd. 

Rio Vista, CA 94571 

www.barriersystemsinc.com 

Phone: 888-800-3691 or 707-374-6800 

Fax: 707-374-680 I 

Email: info@barriersystemsinc.com 

STEEL REACTIVE TENSION ® MOVEABLE BARRIER, MASH TL-3