What are Vermont Temporary Traffic Barrier Specifications?

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The Vermont Department of Transportation outlines general notes regarding the proper installation and components of temporary traffic barriers.
Vermont Temporary Traffic Barrier Specifications

The Vermont Department of Transportation’s general notes are as follows:

  1. Temporary traffic barriers should be one of the barriers included under FHWA’s Roadside Hardware Policy and Guidance for crashworthy longitudinal barriers, at the Contractor’s discretion, unless otherwise specified.

  2. The type of temporary traffic barrier should be provided to the Engineer prior to use.

  3. All temporary traffic barriers and corresponding connections should meet (unless otherwise specified in the Plans) Test Level 3 (TL-3) criteria as defined in NCHRP Report 350 or the AASHTO Manual for Assessing Safety Hardware (MASH). The appropriate resource should be determined as described in the MASH publication.

  4. Temporary traffic barrier components should be in a condition satisfactory to the Engineer prior to placement on the project and maintained as such until removed from the project.

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  1. The Contractor should provide to the Engineer verification that the barrier deflection distance is appropriate for the intended use. Where appropriate, temporary traffic barriers should be adequately anchored to prevent movement if impacted.

  2. Temporary traffic barriers should be erected in accordance with details shown on the Plans or as directed by the Engineer. Unless otherwise specified, temporary traffic barriers should be removed when no longer needed on the project as determined by the Engineer, and should remain the property of the Contractor. The area from which the barrier was removed must be restored to a satisfactory condition where and when no other construction activities are indicated.

  3. Temporary traffic barriers and required appurtenances should be removed and reset as shown on the Plans or as ordered in writing by the Engineer.

This blog post is an interpretation of specifications by the Virginia Department of Transportation. Please consult with VTrans' most recent requirements for definitive information.

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