U.S. Department 

of Transportation 

Federal Highway 

Administration 

June 3, 2020 

1200 New Jersey Ave., SE 

Washington, D.C. 20590 

In Reply Refer To: 

HSST-1/B-337 

Mr. Fernando Montesinos Alarcon 

Industrias Duero, S.L. 

Gonzalez Davila, 1-28031 Madrid 

Spain 

Dear Mr. Montesinos: 

This letter is in response to your December 18, 2019 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 B-337 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: 

• BLIDTL4C2-MASH

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 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 

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: BLIDTL4C2-MASH 

Type of system: Longitudinal Barrier 

Test Level: MASH Test Level 4 (TL4) 

Testing conducted by: CIDAUT. 

Date of request: December 18, 2019 

FHWA 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 

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

complete information about the crashworthiness of the system. 
- - --- - - - -- ---------

3 

Standard Provisions 

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

control number B-337 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 seU-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 ofvalidity, 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. 

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: December 18, 2019 I  New  Resubmissio

Name: FERNANDO MONTESINOS ALARCON 

L Company: INDUSTRIAS DUERO, S.L.

.1:1 " 

_., E Aaaress: GONZALEZ DAVILA, 1-28031 MADRID

Country: ::, SPAIN "' 

To: Michaels. 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 Iest Level Fl 

System Type Test Submission Type Device Name/ Variant Testing Criterion Level 

'B': Rigid/Semi-Rigid Barriers  Physical Crash Testing AASfffO MASH TL4

(Roadside, Median, Bridge BLIDTL4C2-MASH  Engineering Analysis Railinns\

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: FERNANDO MONTESINOS ALARCON Same as Submitter 

Company Name: INDUSTRIAS DUERO, S.L. Same as Submitter 

Address: GONZALEZ DAVILA, 1-28031 MADRID Same as Submitter 

Country: SPAIN 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. 

CIDAUT completes testing activities for INDUSTRIAS DU ERO S.l. For the completion of this serving, CIDAUT 

receive payment in the form of professional fees. In no circumstances are the fees received linked to the 

performance of the product nor the outcome of the tests. 

CIDAUT does not have, nor ever had, any financial interest in INDUSTRIAS DUERO S.L. or any of the products that 

they sell. 
Version 10.0 (05/16) 

Page 2 of 5 

PRODUCT DESCRIPTION 

 New Hardware or  Modification t

• Significant Modification Existing Hardware 

BLIDTL4C2-MASH is a guardrail barrier system comprising thrie-beam rails supported by steel posts and 

including steel spacers. 

BLI DTL4C2-MASH posts are made from hot rolled steel sheets and cold formed to a C cross section 

130x80x25mm with characteristics per S355JR according to EN ISO 10025 and with a nominal thickness of 

5mm. Posts are installed to an above ground height of 35,Sin (910mm] at 79in [2000mm] centres. Posts are hot 

dip galvanized according to EN ISO 1461. 

Thrie-beam rails are made from hot rolled steel sheets with the following characteristics: steel S355JR 

according to EN ISO 10025 and 2.5mm nominal thickness. The nominal height to top of the rail is 38,6in 

[980mm]. Rails are hot dip galvanized according to EN ISO 1461. 

Spacers are made of steel S3SSJR according to EN ISO 10025 and 5mm nominal thickness. The spacers are 

bolted to the posts using Hexagonal Head Bolts M16x40 class 8.8. Hexagonal nuts M16 are class 8. A 

rectangular plate 100x35x5mm ofsteel S275JR according to EN ISO 10025 is mounted between the post face 

and nut. 

Bolts fastening the thrie-beam rails to the spacers are hexagonal head bolts Ml0x40 class 8.8. A rectangular 

plate 100x35x5mm is located under the head of the bolt and a flat washer Ml Ois located between the spacer 

and a Ml 0 nut class jBj. Bolts fastening thrie-beam rails are round head bolts Ml 6x30 class 8.8 and shall be 

tightened with a torque between l 40Nm to 160Nm. Bolts used in the joints between the posts and the spacers 

shall be tightened with a torque from 90Nm to 11 0Nm. Bolts fastening the thrie-beam rails to the spacers shall 

be tightened with a torque between 35Nm to 45Nm. 

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: 

Address: ·Y/1/i/l!:Q/.I!) Same as Submitter 

Country: Same as Submitter 

A rie escrlption o eac eras test an its resu t; 
Version 10.0 (05/16) 

Page 3 of 5 

Required Test Narrative Evaluation 

Number Description Results 

MASH 4-10 Test No. E19-1533 

Test Date-November 6th, 2019 

Test Report No. 1910-191024 /02_ENG 

The TL4 MASH SAFETY BARRIER 

"BLIDTL4C2-MASH" contained and 

redirected the 11 OOC vehicle. 

The vehicle did not penetrate, underride, or 

override the installat[on. Maximum dynamic 

deflection during the 

test was 3.04 ft. No detached elements, 

fragments, or other debris were present to 

penetrate of to show 

potential for penetrating the occupant 

4-10 (1100() compartment, or to present hazard to PASS 

others. Maximum occupant 

compartment deformation was 1.26 inches 

in the front-left lateral pannel area. The 

11 OOC vehicle remained 

upright during and after the collision event. 

Maximum roll and pitch angles were 11 

degrees and 2 degrees, 

respectively. Occupant risk factors were 

Within the preferred limits specified in 

MASH. The 11 00C vehicle 

exited within the exit box specifications. 

MASH 4-11 Test No. E19-1532 

Test Date -October 31st, 2019 

Test Report No. 1910-191024 / 02_ENG 

The TL4 MASH SAFETY BARRIER 

"BLIDTL4C2-MASH" contained and 

redirected the 2270P vehicle. 

The vehicle did not penetrate, underride, or 

override the installation, Maximum dynamic 

deflection during the 

test was 3.34 ft. No detached elements, 

fragments, or other debris were present to 

penetrate of to show 

4-11 (2270P) potential for penetrating the occupant PASS 

compartment, or to present hazard to 

others. Maximum occupant 

compartment deformation was 1.14 inches 

in the front-left floor pan area. The 2270P 

vehicle remained upright 

during and after the collision event. 

Maximum roll and pitch angles were 15 

degrees and 3 degrees, 

respectively. Occupant risk factors were 

within the preferred limits specified in 

MASH, The 2270P vehicle 

exited within the exit box specifications. 
Version 10.0 (05/16) 

Page 4 of 5 

Required Test 

Number 

Narrative 

Description 

Evaluation 

Results 

4-12 (10000S) 

MASH 4-12 Test No. E19-1531 

Test Date - October 28th, 2019 

Test Report No. 1910-191024 / 02_ENG 

The TL4 MASH SAFETY BARRIER 

"BLIDTL4C2-MASH" contained and 

redirected the 10000S vehicle. 

The vehicle did not penetrate, underride, or 

override the installation. Maximum dynamic 

deflection during the 

test was 4.06 ft. No detached elements, 

fragments, or other debris were present to 

penetrate of to show 

potential for penetrating the occupant 

compartment, or to present hazard to 

others. Maximum occupant 

compartment deformation was 2.64 inches 

in the left cockpit area. The 10000S vehicle 

remained upright during 

collision event and it overturns over the 

barrier and breaks the continuity ofthe 

longitudinal element as a result 

ofa second impact, once the vehicle has 

already been redirected. Maximum roll and 

pitch angles were -87 

degrees and -59 degrees, respectively. 

Occupant risk factors were within the 

preferred limits specified in 

MASH. The 10000S vehicle exited within the 

exit box specifications. 

PASS 

4-20 (1100() Transition test is not applicable for the 

BLIDTL4C2-MASH Barrier. Nun-R~levant Test, not conducted 

4-21 (2270P) Transition test is not applicable for the 

BLIDTL4C2-MASH Barrier. Non Relevant Test, not conducted 

4-22 (100005) Transition test is not applicable for the 

BLIDTL4C2-MASH Barrier. 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.): 

Laboratory Name: 

Laboratory Signature: 

Address: 

Country: 

Accreditation Certificate 

Number and Dates of current 

Accreditation period : 

ame as Submitter 

Same as Submitter 
Version 10.0 (05/ 16) 

Page 5 of 5 

Submitter Signature*: 

Submit Form 

ATTACHMENTS 

Attach to this form: 

1) Additional disclosures ofrelated financial interest as indicated above. 

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

support ofthis request. 

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

ll lardware Ciujdc 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 I Key Words 

I