US. Deportment 1200 New Jersey Ave., SE 

of Trcnsportotion Washington, D.C. 20590 

Federal Highway 

Administration 

July 24, 20 12 

ln Reply Re fer To: 

HSST/CC-JOOA 

Mr. Brian Smith 

Trinicy Highway Products, LLC 

2525 North Stemmons Freeway 

Dall as, Texas 75207 

Dea r Mr. Smith: 

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

review a roadside sa fely system for elig ib ility for reimbursement under the Federal-aid highway 

program. 

Name of system: Slotted Rail Terminal (SRT-3 1) used for terminating Trinity Guardrail 

System (TGS) 

Type o f system: Terminal Encl Section 

Test Level: National Cooperati ve Highway Research Program (NCHRP) Report 350 Test 

Level 3 (TL-3) 

Testing conducted b y: ' n/a' 

Task Force 13 Designato r: SEW12b 

Date of request: June 7, 2012 

Date initiall y acknowledged: June 7, 2012 

Date of completed package: June 24, 20 12 

Decision: 


The following device is elig ible, with details provided: 


• 	 Slotted Rail Terminal (SRT-3 1) used for terminating Trinity Guardrail 

System (TGS) 

Based on a review of crash test results submitted b y the manufacturer certifying the device 

described herein meets the crash test and evaluation criteria of the National Cooperative 

Highway Research Program (NCHRP) Report 350, the device is eligible for re imbursement 

under the Federal-aid highway prog ram. Eligibility for reimbursement under the Federal-aid 

highway program does not establ ish approval or endorsement by the Fl-IWA for any particular 

purpose or use. 

The FHWA, the Department of Transportation, and the United States Government do not 

endorse products or services and the issuance of a reimbursement elig ibility letter is not an 

endorsement of any product or service. 

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Requirements 


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


and evaluation criteria contained in the National Cooperative Highway Research Program 


(NCHRP) Report 350. 


Description 


The device and supporting documentation are described in the attached form. 


Summary and Standard Provisions 


Therefore, the system described and detailed in the attached form is eligible for reimbursement 


and may be installed under the range of conditions previously tested. 


Please note the following standard provisions that apply to FHW A eligibility letters: 


• 	 This letter provides a AASHTO/ARTBA/AGC Task Force 13 designator that should be 

used for the purpose ofthe creation of a new and/or the update of existing Task Force 13 

drawing for posting on the on-line 'Guide to Standardized Highway Barrier Hardware' 

currently referenced in AASHTO Roadside Design Guide. 

• 	 This finding of eligibility does not cover other structural features of the systems, nor 

conformity with the Manual on Uniform Traffic Control Devices. 

• 	 Any changes that may influence system conformance with NCHRP Report 350 criteria 

will require a new reimbursement eligibility letter. 

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

performance reveals safety problems, or that the system is significantly different from the 

version that was crash tested, we reserve the right to modify or revoke this letter. 

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

installation 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 crash test and evaluation criteria ofthe NCHRP Report 350. 

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

CC-1 OOA 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. 

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• 	 This Jerter 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. 

The FHWA does not become involved in issues concerning patent law. Patent issues. if 

any, are to be resolved by the applicant. 

Sincerely yours, 

Michael S. Griffith 

Director, Office of Safety Technologies 

Office of Safety 

Enclosures 

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Request for Federal Aid Reimbursement Eligibility 

OfHighway Safety Hardware 

.. 

QI 

t:·e 

.D 

:I 

11'1 

Date of Request: May02, 2012 Ir. New r Resubmission 

Name: DonGripne 

Company: Trinity Highway Products 

Address: 5216 Brassfield Dr. SE, Olympia, WA. 98501 

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. 

System Type Device Name I Variant Testing Criterion Test 

Level 

'CC': Crash Cushions, Attenuators, & T SRT-31/TGS 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 AASHTO Manual for Assessing Safety 

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

Identification of the individual or organization responsible for the product: 

Contact Name: Brian Smith 

Company Name: Trinity Highway Products, LLC 

Address 1: 2525 Stemmons Frwy 

Address2: 

City/State/Zip: Dallas, TX. 75207 

Country: United States 

PRODUCT DESCRIPTION 


null 

This request is to add the Trinity Guardrail System to the list of systems that the SRT-31 can be used with. The 

T-31 and Gregory Mini Spacer guardrail systems are included in the FHWA SRT-31 CC-100 dated August 30, 

2007. The TGS is similar to the Gregory system in that it uses the same post but a different rail to post bolt for 

separation of the post from the rail. Both systems have been tested to MASH requirements. The TGS uses the 

same rail to post bolt that the T-31 guardrail used. It also has been tested to MASH requirements. 

CRASH TESTING 

A brief description of each crash test and its result: 

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Required Test 

Number 

Narrative 

Description 

Evaluation 

Results 

3-30 (820() 

For SRT31, see CC-100 dated August 30, 2007. For Trinity Guardrail System 

(TGS) see B-177 dated July 16, 2008. 

Also, since ride down acceleration for 820( is worst case, the following 

comparison between T-31 & TGS are simllar in performance as per the 

following previous successful Report 350 crash tests as conducted by TTI: 

a. Test no 220570-4 on October 19, 2005 on the Trinity 31-inch w-beam 

guardrail. 

b. Test no 400001-TGS2 on June 8, 2007 on the Trinity Guardrail System 

(TGS). 

Both single page testing summary also attached as enclosure to this 

Form. 

PASS 

S3-30(700C No mid-size car testing conducted. WAIVER REQUES 

3-31 (2000P) 

For SRT31, see CC-100 dated August 30, 2007. For Trinity Guardrail System 

(TGS) see B-177 dated July 16, 2008. PASS 

3-32 (820() 

For SRT31, see CC-100 dated August 30, 2007. For Trinity Guardrail System 

(TGS) see 8-177 dated July 16, 2008. PASS 

S3-32 (700C) No mid-size car testing conducted. WAIVER REQUES 

3-33 (2000P) 

For SRT31, see CC-100 dated August 30, 2007. For Trinity Guardrail System 

(TGS) see B-177 dated July 16, 2008. PASS 

3-34 (820C) 

For SRT31, see CC-100 dated August 30, 2007. For Trinity Guardrail System 

(TGS) see B-177 dated July 16, 2008. PASS 

S3-34 (700() No mid-size car testing conducted. WAIVER REQUES 

3-35 (2000P) 

For SRT31, see CC-100 dated August 30, 2007. For Trinity Guardrail System 

(TGS) see B-177 dated July 16, 2008. PASS 

3-36 (820C) 

For SRT31, see CC-100 dated August 30, 2007. For Trinity Guardrail System 

(TGS) see B-177 dated July 16, 2008. PASS 

S3-36 (700() No mid-size car testing conducted. WAIVER REQUES 

3-37 (2000P) 

For SRT31, see CC-100 dated August 30, 2007. For Trinity Guardrail System 

(TGS) see B-177 dated July 16, 2008. PASS 

3-38 (2000P) 

For SRT31, see CC-100 dated August 30, 2007. For Trinity Guardrail System 

(TGS) see B-177 dated July 16, 2008. PASS 

3-39 (2000P) 

For SRT31, see CC-100 dated August 30, 2007. For Trinity Guardrail System 

(TGS) see B-177 dated July 16, 2008. PASS 

3-40 (2000P) Does not apply to Re-directive devices. WAIVER REQUES 

S3-40 (700() Does not apply to Re-directive devices. WAIVER REQUES 

3-41 (2000P) Does not apply to Re-directive devices. WAIVER REQUES 

3-42 (820() Does not apply to Re-directive devices. WAIVER REQUES 

S3-42 (700() Does not apply to Re-directive devices. WAIVER REQUES 

3-43 (2000P) Does not apply to Re-directive devices. WAIVER REQUES 

3-44 (2000P) Does not apply to Re-directive devices. WAIVER REQUES 

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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.): 

Laboratory Name: Texas Transportation Institute 

Laboratory Contact: Dean Alberson 

Address: College Station, TX. 

Country: United States 

Accreditation Certificate 

Number and Date: Mechanical 2821.01, Current Date April 30, 2013 

ATIACHMENTS 

Attach to this form: 


1) A copy of the Test Data Summary Sheet for each test conducted in support of this request. 


2) 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 key to understanding the performance of the device should also be submitted to facilitate our 

review. · 

FHWA Official Business Only: 

Eligibility Letter AASHTOTF13 

Number Date Designator Key Words 

CC-lOOA July 17, 2012 SEW12b 

slotted rail terminal, 31-inch strong post w-beam, 

Report 350, steel yielding terminal posts, cable 

release post. 

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