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U.S. Department of Transportation

Federal Highway Administration

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

March 11, 2009

In Reply Refer To: HSSD/WZ-180A

Mr. Craig Schultz
Davidson Traffic Control Products
3110 70th Avenue East
Tacoma, WA 98424

Dear Mr. Schultz:

In your letter of January 21 you requested the Federal Highway Administration (FHWA) acceptance of the O-frame Type I and Type II barricade as a crashworthy traffic control device for use in work zones on the National Highway System (NHS). Accompanying your letter was the FHWA Office of Safety Design form that included a drawing and a detailed description of the device. The drawing is enclosed with the acceptance form for the Type I and Type II barricade. You have clearly outlined the slight design modification made to the previously accepted device (WZ-180) and 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 is the acknowledgement of the 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 Design

Enclosures


Attachment 1
Page 1 FEDERAL HIGHWAY ADMINISTRATION
OFFICE OF SAFETY DESIGN
Category 2 Work Zone Device Acceptance Letter
Letter Number
WZ-180A
Date
3/9/09
Contact Info Petitioner / Developer Name and Address:  
Mr. Craig Schutz
Davidson Traffic Control Products
3110 70th Ave East
Tacoma, WA 98424
I hereby certify that the device(s) covered by this Acceptance Letter meet(s) the crash
– worthiness test and evaluation requirements of the FHWA and NCHRP Reprt 350.
Signature  
Telephone#(253) 284-8000
Enail Addresscraigschulz@flitrona.com
Laboratory / Engineer Name and Address
 
I hereby certify that the testing that supports this Acceptance Letter was conducted in
accordance with NCHRP Report 350 guidelines, that the device(s) tested is/are
accurately described on this form, and that the test results indicate that the device
meets all applicate NCHRP Report 350 evaluation criteria.
X
I have evaluated the requested modifications to these devices previously found
acceptable by the FHWA in Acceptance Letter WZ-____, and hereby certify that, in
my opinion, the modifications do not adversely affect the crash performance of the
devices. I also certify that these devices are acurrately described on this form.
Signature  
Telephone# 
Email Address 
Keywords Type I & II Barricade Leg
Type of Device (See page 3)
Type I Barricade
Composition of sign or Rail substrate (See page 3)
Extruded Plastic
Thickness of substrate (inches): 0.13
Flags and or lights present during test? Indicate number of each:
# of flags:   # of lights:   Weight of lights: ea.
Device NameO-Frame Barricade Leg
Detailed Desc
Of Device,
Materials, sizes,
Fasteners,
Substrates
Foundation,
Aux. Features
Ballast, etc.
(May be attached on seperate page(s))

O-Frame is a modification to our original A·Frame Barricade Ihat was accepted under
WZ-1 80 in October 2004. The O-Frame has virtually the same weight and is constructed
of HDPE resin, the change to the product comes with the addition of tvo slots in tile lower
portion of the legs to accept our 1x8 inch barricade panel to attow for the barricade to be
more ADA friendly. All accessory parts for the frame are unchanged, with the actual
weight of the frame dropping from 7 .1 pounds to 6.2 pounds.


Attachment 1
Page 2 FEDERAL HIGHWAY ADMINISTRATION
OFFICE OF SAFETY DESIGN
Category 2 Work Zone Device Acceptance Letter
Letter Number WZ-180A Date 3/9/09
Mandatory Attachments
Attach. #1aTest#
Attach. #1bTest#
Attach. #1cTest#
Attach. #1dTest#
Alternative Attachment #1: Description and discussion of modification(s) to
crash tested and/or accepted device.
Date: 03/06/2009
Attachment#2: PDF drawing(s) of device(s)
Attach. #2aDrawing Title: O-Frame Drawing
Drawing #:
Attach. #2bDrawing Title:
Drawing #:
Attach. #2cDrawing Title:
Drawing #:
Attach. #2dDrawing Title:
Drawing #:
Attach. #2eDrawing Title:
Drawing #:
Attach. #2fDrawing Title:
Drawing #:
Attach. #2gDrawing Title:
Drawing #:

Attachment 1
Page 3 FEDERAL HIGHWAY ADMINISTRATION
OFFICE OF SAFETY DESIGN
Category 2 Work Zone Device Acceptance Letter
Letter Number
WZ-180A
Date
3/9/09

Please select from the following Keywords for "Type of Device":

Please select from the following Keywords for "Sign Substrate":

Please select from the following Keywurds for "Height of Sign":

The distance 10 the lowest point on the sign is:

Low 12 to 18 in ches above the pavement
Mid-A 20 to 24 inches above the pavement
Mid-B 25 to 36 inches above Ihe pavement
Mid-C 37 to 59 inches above the pavement
Tall (60 to 71 inches above the pavement
Oversized 72 inches and taller

Attachment 1
Page 4 FEDERAL HIGHWAY ADMINISTRATION
OFFICE OF SAFETY DESIGN
Category 2 Work Zone Device Acceptance Letter
Letter Number
WZ-180A
Date
3/9/09

Please note the following standard provisions th at apply to FHW A letters of acceptance:

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