U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000


Skip to content
FacebookYouTubeTwitterFlickrLinkedIn

Safety

eSubscribe
eSubscribe Envelope

FHWA Home / Safety / Roadway Departure / Safety Eligibility Letter

Safety Eligibility Letter WZ - 324

Download Version
PDF [1.8 MB]

DOT logo
U.S. Department of Transportation
Federal Highway Administration

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

December 18, 2013

In Reply Refer To:
HSST/WZ-324

Mr. Chris Goode
Vice President of Sales
Bone Safety Signs LLC
6450 Industrial Way
Alpharetta, GA 30004

Dear Mr. Goode:

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: SZ 412 Sign Stand with modified mast
Type of system: X-Footprint portable sign stand
Test Level: NCHRP Report 350 Test Level 3
Testing conducted by: KARCO Engineering LLC
Date of request: July 9, 2013
Date initially acknowledged: August 5, 2013
Date of completed package: December 13, 2013

Decision:
The following device is eligible, with details provided in the form which is attached as an integral part of this letter:

Based on a review of component 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 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).

Requirements
To be found eligible for Federal-aid funding, roadside safety devices should meet the crash test and evaluation criteria contained in the American Association of State Highway and Transportation Officials' Manual for Assessing Safety Hardware (MASH).

Description
The device is described in the attached form and attachments. The original SZ 412 stand was covered in FHWA Eligibility/Acceptance Letter WZ-67 dated January 6, 2001. The modification consisted of replacing a single-piece mast with a two-piece mast. Bogie vehicle testing of the original and the modified sign stands showed that both mast designs deformed around the front of the test vehicle in a similar manner.

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:

 

Sincerely yours,

/* Signature of Michael S. Griffith*/

Michael S. Griffith
Director, Office of Safety Technologies
Office of Safety

Enclosures

Request for Federal Aid Reimbursement Eligibility
Of Highway Safety Hardware

Submitter Date of Request: 7/9/2013 radio button New   open radio buttonResubmission
Name: CHRIS GOODE
Company: BONE SAFETY SIGNS, LLC
Address: 6450 INDUSTRIAL WAY, ALPHARETTA, GA 30004
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.

System Type Submission Type Device Name/Variant Testing Criterion Test Level
'WZ': Crash Worthy Work Zone Traffic Control Devices Seleted Radio Button Physical Crash Testing
Radio Button FEA & V&V Analysis
SZ-412-T NCHRP Report 350 TL2

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 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: CHRIS GOODE Same as Submitter ☒
Company Name: BONE SAFETY SIGNS, LLC Same as Submitter ☒
Address: 6450 INDUSTRIAL WAY, ALPHARETTA, GA 30004 Same as Submitter ☒
Country: USA Same as Submitter ☒

PRODUCT DESCRIPTION

Modification to Existing Hardware Non-Significant- Effect is positive or Inconsequential
 

 

Return to top

CRASH TESTING

A brief description of each crash test and its result:

Required Test Number Narrative Description Evaluation Results
2-70 (820C)    
S2-70 (700C)    
2-71 (820C)    
S2-71 (700C) Two bogey sled impact tests for verification & validation. See attached letter. PASS

ATTACHMENTS

Attach to this form:

1) A copy of the full 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 Words
Number Date Designator
WZ-324 August 8, 2013 N/A X-Footprint Sign Stand
Work Zone Sign
Tall Stand

Return to top

Bone Safety Signs Logo

 

Mr. Nick Artimovich
FHWA-HAS-10
400 Seventh Street, SW
Washington, DC 20590

Mr. Artimovich,

We respectively request The Federal Highway Administration review for approval our X Foot print sign stand in consideration for a Safety Acceptance Letter.

The Sign Stand is a variation of two FHW A approved stands, the SZ-460 found in letter WZ-67 along with the SZ-412-2S found in WZ-242, along with other industry standard sign stands known as X foot print and or compact sign stands for exclusive use in displaying roll up signs up to 48" diamond or 16 square feet or smaller, of standard configuration.

Based on a review of comparable subject portable sign stands to prior crash test results as detailed in the WZ Letters previously mentioned along with the attached Karco Engineering letter referencing the NEW TEST performance of the two piece mast verses the one piece mast we are convinced that using the two piece mast on the SZ 412 series X foot print stand verses the single piece mast will not change the strength or integrity of the unit as a whole.

It will allow for better storage, ease of shipping and handling while maintaining the same high quality standards for safety on our roadways while meeting the designed product class.

Also attached you will find the application, drawings and the Karco Engineering Data letter.

Please feel free to contact me at any time with questions you may have.

Regards

/s/ Chris Goode

Chris Goode
Vice President of Sales
Bone Safety Signs LLC
352-598-5308
chris@bonesafety.com

6450 Industrial Way. Alpharetta Georgia 30004*(770) 333-1635* I (800)873-2399*fax (770)333-1639
www.bonesafety.com

Page last modified on June 24, 2011.
Safe Roads for a Safer Future - Investment in roadway safety saves lives
Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000