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                Safety Eligibility Letter WZ-275
  
  **Hardware Type:**
            Work Zone Devices
                          **Code:**
            WZ-275
                          **Date:**
            09/24/2008
                          **Testing Criteria:**
            NCHRP 350
                          **Manufacturer:**
            Bone Safety Signs
                          **Device Description:**
            Temporary sign stand with a minimum 60 inch mounting height.
                          **View PDF:**
            wz275.pdf (1.87 MB)
    
    
Skip to contentSkip to contentUnited States Department of Transportation - Federal Highway AdministrationDOT logo
U.S. Department of Transportation
**Federal Highway Administration**
1200 New Jersey Ave. S.E.
Washington, D.C. 20590September 24,  2008
**In Reply Refer To: 
HSSD/WZ-275**

Mr. Chris Goode
Vice President Sales
Bone Safety Signs
2151 Northwest Parkway, SE
Suite 100
Marietta, GA 30067-8726
	
Dear  Mr. Goode:
In your letter of August 18, 2008,  received September 2, 2008, you requested the Federal Highway Administration (FHWA)  acceptance of the SZ-460-2S and the SZ-484-2S temporary sign stands with the  following sign substrate materials: 0.08 inch thick aluminum, 3 mm and 4 mm aluminum composite,  fiberglass supported roll-up signs, 6.35 mm solid ABS plastic, 10 mm and 16 mm  corrugated plastic, and sign sizes up to the tested limit of 48 inches by 48 inches as  crashworthy traffic control devices for use in work zones on the National  Highway System (NHS). You requested  acceptance of a 48 inch by 48 inch diamond installation and a 48 inch by 60 inch  rectangular installation. Accompanying  your letter was the FHWA Office of Safety Design form that included a drawing  and a detailed description of the barricade, a test report, and videos of the  crash test. The drawing is enclosed with  the acceptance form for the Type I barricade.  You requested that we find this device acceptable for use on the NHS  under the provisions of National Cooperative Highway Research Program Report  350 "Recommended Procedures for the Safety Performance Evaluation of Highway  Features”.
This letter acknowledges FHWA's acceptance of your  requests. The original completed forms  have been modified by the addition of the FHWA acceptance letter number and the  date of our review. The form will be  posted on our Web site in the near future.
Sincerely yours,
Signature of David A. Nicol, P.E.
David A. Nicol, P.E.
   Director, Office of Safety Design
Office  of SafetyEnclosures
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