USA Banner
  U.S. flag
              An official website of the United States government Here's how you knowOfficial US Government Icon
              **Official websites use .gov**A **.gov** website belongs to an official government organization in the United States.
            Secure Site Icon
              **Secure .gov websites use HTTPS**
                  A **lock** ( A locked padlock ) or **https://** means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites. 
 U.S. Department of Transportation Icon United States Department of Transportation
 Search DOT
            Search
                    About FHWAFHWA Organization
                Headquarters Offices
                Field Offices
                Strategic Plan
                Business Opportunities
                Staff Directories
                Careers
                Highway History
                Contact UsProgramsAcquisition Management
                Civil Rights
                Federal Lands Highway
                Infrastructure
                Innovative Program Delivery
                Operations
                Planning, Environment, and Realty
                Policy
                Research, Development, and Technology
                Safety
                Browse by TopicsResourcesCore Highway Topics
                Federal Aid Essentials
                Automation
                Complete Streets
                Laws and Regulations
                Policy & Guidance Center
                Section 508
                Publications and Statistics
                Professional Development
                National Highway Institute
                Resource Center
                Accessibility Resource Library
                FHWA Research LibraryNewsroomPress Releases
                Speeches & Testimony
                Photos
                Videos
                Media ContactsMenu FHWA Highway Safety Programs Home
                        Safety
                        Roadway Departure Safety
                        Reduce Crash Severity
                        Hardware Eligibility Letters


            
            In This Section
        Roadway Departure Safety
                Strategic Approach
                                Strategic Plan
                Crash Emphasis Brochures
                Focused Approach
                Noteworthy Practices
                Partner Resources
                Keep Vehicles on the Road
                                Pavement Friction
                Horizontal Curve Safety
                Rumble Strips and Rumble Stripes
                Nighttime Visibility
                Provide for a Safe Recovery
                                SafetyEdge
                Clear Zones
                Reduce Crash Severity
                                Overview
                Hardware Eligibility Letters
                Focus on Reducing Rural Roadway Departures (FoRRRwD)
                                Overview
                All Public Roads
                Proven Countermeasures
                Systemic Approach
                Safety Action Plans
                FoRRRwD Resources
                
                Safety Eligibility Letter WZ-277
  
  **Hardware Type:**
            Work Zone Devices
                          **Code:**
            WZ-277
                          **Date:**
            03/19/2009
                          **Testing Criteria:**
            NCHRP 350
                          **Manufacturer:**
            Lifetime Products / Off The Wall Products
                          **Device Description:**
            Water-filled channelizing device based on testing conducted of WZ-255
                          **View PDF:**
            wz277.pdf (987.57 KB)
    
    
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. 20590March 19,  2009
**In reply to: HSSD/WZ-277**

Mr. Marc Christensen
	Off the Wall Products, LLC
	P.O. Box   1461
	Salt Lake City,   UT 84110

Dear Mr. Christensen:

In your letter of  January 29 you requested the Federal Highway Administration (FHWA) acceptance  of the modified and re-designed Multi Barrier Model MB 42 x 72 JSS longitudinal  channelizing device as a crashworthy traffic control devices for use in work  zones on the National Highway System (NHS).  Accompanying your letter was the FHWA Office of Safety Design form, a  drawing of the device, and a detailed description of previous testing you  completed on a similar longitudinal channelizing device (WZ-255). The drawing and detailed description are  enclosed with the acceptance form for the re-designed Multi Barrier Model MB 42  x 72 JSS longitudinal channelizing device.  The re-designed device is intended for use with no more than 41 liters  (10.8 gallons) of water in each module as ballast. You requested that we find this device  acceptable for use 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 is the acknowledgement of the FHWA’s  acceptance of your requests. Longitudinal  channelizers should not be described as "barriers" because they do  not meet crashworthiness requirements for redirection. A suggested example for labeling each unit or  module to indicate limitations of use are enclosed. 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
Safety Home | FHWA Home | Feedback
United States Department of Transportation - **Federal Highway Administration** U.S. DEPARTMENT OF TRANSPORTATION

**Federal Highway Administration**

1200 NEW JERSEY AVENUE, SE

WASHINGTON, DC 20590

202-366-4000Subscribe to email updates
                    About
  

        
              About FHWA
                Careers
                Org Chart
                Staff Directories
                Work with UsPrograms
  

        
              Acquisition Management
                Civil Rights
                Federal Lands Highway
                Infrastructure
                Innovative Program Delivery
                Operations
                Planning, Environment, and Realty
                Policy
                Research, Development, and Technology
                SafetyPolicies, Rights, Legal
  

        
              About DOT
                Accessibility
                Budget and Performance
                Civil Rights
                FOIA
                Information Quality
                No FEAR Act
                Office of Inspector General
                Privacy Policy
                USA.gov
                Web Policies and Notices
                Web StandardsNews & Events
  

        
              Newsroom
                Press Releases
                Speeches & Testimony
                Media Contacts
                Connect with Us