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                        Hardware Eligibility Letters


            
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                Safety Eligibility Letter B-114A
  
  **Hardware Type:**
            Longitudinal Barriers and Bridge Rails
                          **Code:**
            B-114A
                                  **Testing Criteria:**
            NCHRP 350
                          **Manufacturer:**
            NPCG LLC
                          **Device Description:**
            DuroBlock Spacer
                          **View PDF:**
            b114a.pdf (693.74 KB)
    
    Safety Eligibility Letter B-114A


			 

			**Download Version**PDF [588 KB]

			

			DOT logoU.S. Department of Transportation**Federal Highway Administration**

			1200 New Jersey Ave. S.E.Washington, D.C. 20590

			Jun 13, 2013

			In Reply Refer To: HSST/B-114AMr. Ernest Knight
	   NPCG, LLC
	   P.O. Box Z
	   Carlisle, Iowa 50047
Dear Mr. Knight:
This letter is in response to your request for the Federal Highway Administration (FHWA) to
review a roadside safety system for eligibility for reimbursement under the Federal-aid highway
program.
Name of system:

					DuroBlock SpacerType of system:

					Recycled Rubber Spacer Block for GuardrailTest Level:

					NCHRP Report 350 Test Level 3Testing conducted by:

					N/ADate of request:
   March 27, 2013Date to final package
   March 27, 2013**Decision:**
The following device is eligible, with details provided in the form which is attached as an
integral part of this letter.
 DuroBlock Spacer Recycled Rubber Spacer Block for GuardrailBased on a review of crash test results submitted by 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 reimbursement
under the Federal-aid highway program. Eligibility for reimbursement under the Federal-aid
highway program does not establish approval or endorsement by the FHWA 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 eligibility letter is not an
endorsement of any product or service.
 **Requirements**
 To be found eligible for Federal-aid funding, roadside safety devices should meet the crash test
and evaluation criteria contained in the NCHRP Report 350 or the American Association of State
Highway and Transportation Officials’ Manual for Assessing Safety Hardware (MASH).
 **Description**
The device and supporting documentation are described in the attached form and previous
FHWA Letter B-114 to Welch Products, Inc. dated March 27, 2003, copy enclosed for reference.
We understand you have acquired the rights to manufacture the Welch offset block.
 **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 tested.
 Please note the following standard provisions that apply to FHWA eligibility letters:
  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 FHWA 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 of the NCHRP Report 350.
    To prevent misunderstanding by others, this letter of eligibility is designated as
      number B-114A 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.
    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. The FHWA does not become involved in issues concerning patent law.      Patent issues, if any, are to be resolved by the applicant.Sincerely yours,
			 
			 */* Signature of Michael S. Griffith */*
			 
			 Michael S. GriffithDirector, Office of Safety TechnologiesOffice of SafetyEnclosures

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Request for Federal Aid Reimbursement Eligibility
Of Highway Safety Hardware
Submitter
    **Date of Request:**
    March 27, 2013
    New   Resubmission**Name:**
    Ernest Knight**Company:**
    NPCG, LLC formerly Welch Products, Inc.**Address:**
    PO Box Z, Carlisle,IA 50047**To:**
    Michael S. Griffith, Director
FHWA, Office of Safety TechnologiesI request the following devices be considered eligible for reimbursement under the Federal-aid
highway program.
System Type
        Submission Type
    Device Name/Variant
    Testing Criterion
    Test Level'CC': Crash Cushions, Attenuators, &
    Seleted Radio Button Physical Crash TestingRadio Button FEA & V&V Analysis
    DuroBlock Spacer
    NCHRP Report 350
    TL3By 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.
Identification of the individual or organization responsible for the product:
**Contact Name:**
    Ernest Knight
    Same as Submitter ☒**Company Name:**
    NPCG, LLC formerly Welch Products, Inc.
    Same as Submitter ☒**Address 1:**
    PO Box Z Carlisle, IA 50047
        Same as Submitter ☒**Country:**
    USA
        Same as Submitter ☒PRODUCT DESCRIPTION
Radio Button New Hardware
    Selected Radio ButtonModification to Existing Hardware
    Non-Significant – Effect is positive or InconsequentialRequesting company and product name change from Welch Products recycled rubber spacer block to NPCG,
      LLC , DuroBiock Spacer

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CRASH TESTING
A brief description of each crash test and its result:
Required Test Number
    Narrative Description
    Evaluation Results3-30 (820C)
    
    PASSS3-30 (700C)3-31 (2000P)3-32 (820C)S3-32 (700C)3-33 (2000P)3-34 (820C)S3-34 (2000P)3-35  (2000P)3-36 (700C)S3-36 (700P)3-37 (2000P)3-38 (2000P)3-39 (2000P)3-40 (2000P)3-41 (2000P)3-42 (820C)3S-42 (700C)3-43 (2000P)3-44 (2000P)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:**
    Midwest Roadside Safety Facility**Laboratory Contact:**
    Karla Lechtenberg, MSME, EIT
    Same as Submitter ☐**Address:**
    130 Whittier Bid., 2200 Vine St., Lincoln, NE 68583—853
      Same as Submitter ☐**Country:**
    USA
      Same as Submitter ☐**Accreditation Certificate
      Number and Date:**
    2937.01 Valid until Nov. 30, 2013ATTACHMENTS
Attach to this form:
1) A copy of the fu ll test report, video, and a 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
    AASHTO TF13
    Key WordsNumber
        Date
		Designator U.S. DEPARTMENT OF TRANSPORTATION

**Federal Highway Administration**

1200 NEW JERSEY AVENUE, SE

WASHINGTON, DC 20590

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