US.Deportment 

of Tronsportoiion 

1200 New Jersey Ave., SE 

Washington, D.C. 20590 

Federa l Highway 

Admlnist ration May 6, 201 6 

In Repl y Refer To: 

HSST-1 /B-260 

Mr. Dean Taki guchi 

State of Hawaii Department of Transportation 

Ilighways Division 

60 1 Kamokila Boulevard, Room 611 

I lonolulu, Hawaii 9581 9-46 12 

Dea r Mr. Takiguchi: 

This letter is in response to your January 24. 2014 request for the f ederal Highway 

/\dminislration (fl I WA) to review a roadside safety device. hardwnrc. or system for eligibility 

for reimbursement under the l'cderal-aid highway program. This Fl IW /\ letter or eligibility is 

assigned FH\V /\control number B-260 and is valid until a subsequent letter is issued by FH\V/\ 

that expressly references this device. 

Decision 

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

integra l part of this letter: 

• Typical Cement Rubble Masonry (CRM) Guardrail Wall 

Scope of this Letter 

To be found eligible for Federa l-aid fund ing, new roadside safety devices should meet the crash 

test and evaluation criteria contained in the Ameri can Association of State Highway and 

Transportation Offi cials' Manual for Assessing Safety Hardware (MASH). However, the 

FI-I\VA. the Department of Transportation, and the United States Government do not regulate the 

manufacture of roadside safety devices. Eligibility for reimbursement under the f ederal-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 Fl IWA, the Department of Transportation, or the United 

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

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

manufac turing, installation. and maintenance are required in order for this device to function as 

tested. 

This finding of eligibility is limited to the crash worthiness of the system and docs 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, FHW A agrees that the device described herein meets the crash test 

and evaluation criteria of the American Association of State Highway and Transportation 

Officials' Manual for Assessing Safety Hardware (MASH). Therefore, the device is eligible for 

reimbursement under the Federal-aid highway program if installed under the range oftested 

conditions. 

Name ofsystem: Typical Cement Rubble Masonry (CRM) Guardrail Wall 


Type of system: Longitudinal Barrier 


Test Level: MASH Test Level 1 


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


Date of request: March 12, 2014 


Date of completed package: March 22, 2016 


Full Description of the Eligible Device 

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

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

form. 

Notice 

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

existing eligibility letter from FHWA, the manufacturer must notify FHWA ofsuch 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 ofthe modification on the ability of 

the device to meet the relevant crash test criteria. 

FHW A'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. 

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 ofthe MASH. 
3 

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

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

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

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

was nawed, (3) in-service performance or other info rmation reveals safety problems. (4) the 

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 crashwo11hiness of the system. 

Standa rd Provisions 

• 	 To prevent misunderstanding by others. this letter of eligibility designated as Fl IWA 

control number B-260 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 sh al I nol be construed as authorization or consent by the FJ f\V/\ 10 use. 

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

• 	 Ir the subj eel 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 equal ly suitable unpatented 

items: (b) the highway agency must certify that they are essential for synchronization 

with the ex isting highway faci lities or that no equally suitable alternative ex ists; or (c) 

they must be used for research or for a distinctive type of construction on relati vely short 

sections of road for experimental purposes. Our regulations concerning proprietary 

products are contained in Title 23. Code of f'edcral Regulations. Section 635.4 11. 

Sincerely yours, 

Michael S. Griffith 

Director, Office of Safety Technologies 

Office of Safety 

Enclosures 
Version 9.1 (11/15) 

Page 1 of 3 

Request for Federal Aid Reimbursement Eligibility 

of Highway Safety Hardware 

1­

GI 

t: ·e

.a 

:::s 

Cl) 

Date of Request: January 24, 2014 I Ci New r Resubmission

Name: Dean Takiguchi 

Company: State of Hawaii Department ofTransportation, Highways Division 

Address: 601 Kamokila Boulevard, Room 611 

Country: United States 


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. 

Ii-1-!I 

System Type Submission Type Device Name I Variant Testing Criterion Test 

Level 

'B': Barriers (Roadside, 

Median, Bridge Railings) 

Ci Physical Crash Testing 

r Engineering Analysis 

Hawaii DOT Concrete 

Rubble Masonry (CRM) 

Wall 

AASHTOMASH Tll 

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. 

Identification of the individual or organization responsible for the product: 

Contact Name: Dean Takiguchi Same as Submitter 0 

Company Name: State ofHawaii Department ofTransportation, Highways Division Same as Submitter 0 

Address: 601 Kamokila Boulevard, Room 611 Same as Submitter 0 

Country: United States Same as Submitter 0 

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

Eligibility Process for Safety Hardware Devices' document. 

None, Product is Non-Proprietary 
Version 9.1 (11/15) 

Page 2 of 3 

PRODUCT DESCRIPTION 

(i' New Hardware or r Modification to I


• Significant Modification Existing Hardware 

Concrete Rubble Masonry Wall. Cross Section: height above grade 2'-0n, depth below grade 1 '-0", wall thickness 

at top 1'-4n, wall thickness at base 2'-4", front traffic side batter 1 H:12V, and back side batter 3H:12V 

CRASH TESTING 

A brief description of each crash test and its result: 

Required Test 

Number 

Narrative 

Description Evaluation Results 

1-10 (1100C) 

1-11 (2270P) 

1-20 (1100() 

TII Determined Not Critical 

TII Test Report Number TM 479070-1, Crash Test Date: 

November 13, 2012. MASH (2009) Test 1-11 

CRM Rail is only allowed to flare outside of clear zone. No 

transitions to other rail type is allowed. 

Non-Critical, not conducted 

PASS 

Non-Critical, not conducted 

1-21 (2270P) See above. Non-Critical, not conducted 

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

Laboratory. By signature below, the Laboratory agrees in support of this submission that all critical and 

relevant crash tests for the device listed above were conducted to meet the MASH criteria (cite the 

laboratory's accreditation status as noted in the crash test reports.): 

Laboratory Name: Texas Transportation Institute 

Richard A. Zimmer Digitally signed by Richard A. Zimmer Laboratory Signature: Date: 2016.03.03 09:29:30-06'00' 

Texas A&M Transportation Institute Proving Ground 

Address: 3135TAMU 

College Station, TX 77843-3135 Same as Submitter 0 

Country: United States Same as Submitter D 

American Association for Laboratry Accreditation ISO 17025 Laboratory Accreditation Certificate 

Mechanical Testing Certificate #2821.01 Number and Dates of current Valid to April 30, 2017 

Accreditation period : 

o.,....,~°"o....t-.-

Submitter Signature*: Dean Takiguchi~~~.::..""'.:!"' .._,_......._d_____ 

Qse~..:lJ.llUl'll'·I~ 

Submit Form 

ATTACHMENTS 

Version 9.1 (11/15) 

Page 3 of 3 

Attach to this form: 


1) Additional disclosures of related financial interest as indicnted above. 


2) A copy of the fu ll test report. video. and a Test Data Summary Sheet for each test conducted in 

suppon of this request. 

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

[I lardware Guide Drawing Standards]. For proprietary products, a s ingle 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 fo rmat) showing details that 

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

to fac ilitate our review. 

FHWA Official Business Only: 

Eligibility Letter 

Number Date 

AASHTO TF13 

Designator Key Words 
From: Alberson peao 

To: Longstreet Wiii (FHWA\ 

Subject: Fwd: Crash Test CRM Research Hawaii DOT 

Date: Tuesday, April 12, 20 16 3:16:15 PM 

Sent from my Verizon Wireless 4G LTE smartphone 

-------- Original message -------­

From: "Alberson, Dean" <d-alberson@tti.tamu.edu> 


Date: 03/22/2016 4:07 PM (GMT-06:00) 


To: Dean.Takiguchi@hawaii.gov, d-alberson@tamu.edu 


Cc: "Chatham, Linda" <l-chatham@tti.tamu.edu>, "Menges, Wanda" <W­


Menges@tti.tamu.edu> 


Subject: RE: Crash Test CRM Research Hawaii DOT 


Hi Dean, 

Absolutely. 

We did not run 1-10 because test 1-10 is such a low energy test, there is nothing that can be 

learned from running that test. The Pickup is the critical test for both stability of the vehicle and the 

strength of the barrier. There is very little or no concern for occupant compartment deformation 

and occupant risk, on the small ca r or the pickup, because of the low-speed nature of the test. This 

speed is at or below the test speeds conducted on this vehicle by N HTSA. So there is no compell ing 

reason to run test 1-10. 

Regards, 

Dean 
Dean C. Alberson, Ph.D., P.E. 

Assistant Agency Director/ Senior Research Engineer 

Texas A&M Transportation Institute 

Road side Safety & Physical Security Division 

d-albecson@tamq edlJ 

979 458-3874 

From: Dean.Takiguchi@hawaii.gov (mailto:Dean.Takiguchi@hawaii.gov] 


Sent: Tuesday, March 22, 2016 1:35 PM 


To: d-alberson@tamu.edu 


Subject: Crash Test CRM Research Hawaii DOT 


I wonder if you could help me. 


FHWA wants a narrative explanation why crash test 1-10 was not conducted. 

'~'I 0.000 s 0.600s 

_-_:<­ -­ - -· -· _J -_r_: 

~ 1 - - ' - J - '_·'_-' 

~ , I ,-~----- 1. __.._, 

' General lnfonnatlon Impact Conditions Poat-Impact Trajectory 

Test Agency ... .. Texas A&M Transportation lnstitule (TTI) Speed. 31.tmilh Stopping Distance .. ... 83.5 ft dwnslnn 

Test Standard Test No AASHTO MASH Mt Angle 25.4 degrees Ad1acent to wall 

Test Agency Test No.. .. 479070-1 Impact Locabon . ..26 ft dwnstrm from Vehicle Stablllty 

Test Date .... .. 2012·11-13 end Mwcimum Yaw Angle .. ..... 22 degrees 

Tosi Artlclo Exll CondltlonG Maximum Pitch Angle .... 4 degrees 

Type .. . Lonwlud1na1 Barrier Speed Out of view Maximum Roll Angle . ..... 12degrees 

Name.. Hawaii Masonry Wall Anglo Out of view Vehide Snagging ... ..... No 

lnslallafion lenglh .. .. 100 It Occupant Risk Values Vehide Packeting ..... . ..... No 

Material or Key Elemenls ... Cement rubble masonry tmpacl Vcloc:ily Tosi Article Denectlons 

Soll Typo and Condition . Crushed Limestone, dry longilud1nal. . ...11.511/s Dynamic .. ...... Not Obtainable 

Tost Vehlclo Laleral ....... 10.211/s Permanent.. ...... None 

Designation.. .. 2270P THIV 16.3 km/h Working Widlh ..... ...... 83.8 inches 

Model.. ........ 2008 Dodge Ram 1500 pid<up Ridedown Acccloratlons Vehide lntrusicm ...... 26.8 lnehes 

Mass Longilud1nat... ........ 6.5 G Vehicle Damage 

Curb ... .. 4761 lb laleral .. .. ..... 4.5 G VOS.... .. ........ 01RFQ2 

Test Inertial. ... ......... 50391b PHO.. . ......7.2G CDC... ...... 01FREW2 

Dummy .. No dummy ASI. . ...... 0.68 Max. Exterior Deformation .......... 9.0 inehes 

Gross Slatic ...... . 5039 fb Max 0 050-s Average OCDI ... . .... RF0010000 

Longdud1nal.. ........ ·5.1 G Mwc. Occupant Compartmenl 

lateral.. ... -4.6 G Deformation .... o. 75 Inch 

Vertical . . .. 2.8 G 

Figure 5. Summary of results for AlttSll test 1-11 on the Hawaii Masonry Wall. 
Traffic 

Face 

0 

I 

Traffic N 

f'oce 

0 

I 

L2·-4.. J ;... L_..._.__........_.__...... 

[ 

existing

grade 

-­ ------------­ -­ --­

ELEVATION 

SCALE: 3/8" • 1'-0" 

HAWAII DOT TYPICAL CRM WALL
 i--~~~~~~~~~~~~~~~~~~~---..~~~~~~~-~l

MASH TL -11 ! 

1---D-A-TE-.:~.--R-E-F-.N-O-.-~i 

' ____J 
·-····-----·-·-· .··-·-··--------· ----·.

, 


I 


I 


I 

i 

I 


I 


TEST ARTICLE SPECIFICATIONS 

The stone used to construct the wall wos clean, hord, sound ond 

durable. The individual stones hod o minimum thickness not less than 

6 inches ond minimum width not less than 1-1/2 times the thickness 

and not less than 12 inches. With the exception of header stones, 

the minimum length wos 1-1/2 times the stone's width. The largest 

stones were used on the bottom course, after which the stones were 

graded to decrease in width from bottom to top of the wall. The 

foscio stones were uniformly distributed by size. The wall wos finished 

with a 2-inch mortar cop. 

The stones were fully embedded in mortar. The mortar mix 

contained 1 port cement ond 2 parts sand and/or fine aggregate by 

volume. The mortar was placed within 30 minutes of water being 

added. A minimum overlap of 6 inches wos specified where the 

stones overlapped. 

FOR FUTHER INFORMATION EMAIL: 

DEAN TAKIGUCHI · 

BRIDGE DESIGN SECTION 

DESIGN BRANCH 

HIGHWAYS DIVISION 

DE.PARTMENT OF TRANSPORTATION 

STATE OF HAWAII 

ot 

DEAN.TAKIGUCHl@HAWAll.GOV 

HAWAII DOT TYPICAL CRM WALL 

MASH TL -1 

_:_:_·---°-=~ I I _ 


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