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                Safety Eligibility Letter WZ-284
  
  **Hardware Type:**
            Work Zone Devices
                          **Code:**
            WZ-284
                          **Date:**
            08/31/2009
                          **Testing Criteria:**
            NCHRP 350
                          **Manufacturer:**
            Acme Barricades
                          **Device Description:**
            lightweight sign mounted to generic TYPE III with lights mounted to supports
                          **View PDF:**
            wz284.pdf (862.02 KB)
    
    Safety Eligibility Letter WZ - 284
			
			
			 
			**Download Version**PDF [863 KB]
			
			DOT logoU.S. Department of Transportation**Federal Highway Administration**
			1200 New Jersey Ave. S.E.Washington, D.C. 20590
			August 31, 2009
			In Reply Refer To: HSSD/WZ-284
			
			Mr. Christian Cummings
            	Acme Barricades LC
                9800 Normandy Blvd
                Jacksonville, FL 32221
                
            Dear  Mr. Cummings:
            In your letter of August 10, you  requested the Federal Highway Administration (FHWA) acceptance of the Acme 3PS  Type III barricade as a crashworthy traffic control device for use in work  zones on the National Highway System (NHS). You requested acceptance of the barricade for  use with aluminum laminate sign substrate material (up to 4 mil thick) and  modified the generic design of the Type III barricade accepted by FHWA in  letter WZ-85. The modifications include  the use of 1/8 inch thick uprights and angle iron barricade feet shortened to  48 inches. These modifications are detailed in the attached drawing.
            Your request for acceptance is  based on the performance of the generic Type III Barricade as accepted in FHWA  letters WZ-85 and WZ-100#3. These  designs are acceptable with lights securely attached to the uprights and a lightweight  sign substrate (no more than 25 square feet) mounted directly to the rails. Accompanying your letter were the FHWA  Office of Safety Design forms that included a drawing with a detailed  description of the Acme 3PS. The drawing is enclosed for reference. You requested that we find the Acme  3PS acceptable for use as a Test Level 3 device on the NHS  under the provisions of the 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 request. 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 DesignOffice of SafetyEnclosures            
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