It was determined in 1973 that the Arizona Highway Department was using unsafe, unsatisfactory, and inadequate methods of supporting their signs. A committee was formed to find a solution; it was decided to investigate adjoining states to determine if they had the same problems and if they had found any solutions. The committee, finding nothing in the other states to satisfy its needs, decided to expand some of its own ideas. The following ideas were researched and developed: (1) 3 in. plastic sewer pipe support; (2) 1 in. plastic sewer pipe support; (3) thick wall 1 in. square tubing support; (4) thin wall 1 in. square tubing support; (5) delineator type sign support; (6) barricade type sign supports; (7) flashing arrow signs. The Committee made the following recommendations: A. Interstate, Rural, or Urban (48" Signs Only) (1) Truck or trailer mounted electric Flashing Arrow Sign device capable of flashing left, right, or both sides. (2) Thin Wall 1" Square Tubing folding sign. If additional weight is needed it was recommended to use sample bags filled with sand. The sign, sign support, and sand bags should prove to be safe and the most functional support in any situation. B. Semi- permanent Installations: (Detours, Road Closures, etc.) (1) Take the time to use drive post and mount your signs. (2) Use standard type barricades listed in the traffic manual. (3) Use the Thin Wall 1" Square Tubing sign supports if Item B (1) is not used. C. Non-Interstate: 30", 36" Signs (Long term - "Level with Premix" or all day activities.) (1) Thin Wall 1" Square Tubing, folding sign supports. (2) Truck or trailer mounted electric Flashing Arrow device, D. Non-Interstate Installations: (Short term - "Hand Patch", "Mowing", "Bridge Work", etc.) (1) Barricade Type Sign Support an additional brace across the bottom, and sand bags can be used for additional stability. /HRIS/

  • Supplemental Notes:
    • Appeared in "Special Reports on: Use of Equipment and Methods of Maintenance".
  • Corporate Authors:

    Federal Highway Administration

    Construction and Maintenance Division, 1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Overton, J B
  • Publication Date: 1975-7

Media Info

  • Features: Figures; Photos;
  • Pagination: 13 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00126302
  • Record Type: Publication
  • Files: TRIS, USDOT
  • Created Date: Oct 18 1975 12:00AM