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Guidelines for the Installation, Inspection, Maintenance and Repair of
Structural Supports for Highway Signs, Luminaries, and Traffic Signals

1. Report No. FHWA NHI 05-036	2. Government Accession No.		3. Recipient's Catalog No.
4. Title and Subtitle Guidelines for the Installation, Inspection, Maintenance and Repair of Structural Supports for Highway Signs, Luminaires, and Traffic Signals			5. Report Date March 2005
			6. Performing Organization Code
7. Author(s) Michael J. Garlich, S.E., P.E. and Eric T. Thorkildsen, P.E.			8. Performing Organization Report No.
9. Performing Organization Name and Address Collins Engineers, Inc. 123 North Wacker Drive, Suite 300 Chicago, Illinois 60606			10. Work Unit No. (TRAIS)
			11. Contract or Grant No. DTFH61-03-T-63040
12. Sponsoring Agency Name and Address Office of Bridge Technology Federal Highway Administration 400 Seventh Street, SW Washington, D.C. 20590			13. Type of Report and Period Covered
			14. Sponsoring Agency Code
15. Supplementary Notes Contracting Officer's Technical Representative (COTR): Larry Jones FHWA Technical Consultant: Thomas Everett
16. Abstract This document provides guidance for the installation, inspection, maintenance, and repair of structural supports for highway signs, luminaires and traffic signals. The primary purpose is to provide owners with information that can assist them in managing their inventory, identifying potential problem areas, and ensuring safe and satisfactory performance of these types of ancillary highway structures. The primary reason for compiling this guidance is increasing problems with wind induced vibration, fatigue, and even structural collapse of these support systems. Documented problems with these structures include questionable design and details, poor fabrication practices, and poor installation techniques.
17. Key Words Sign Structures, Luminaires, Signal Structures, High Mast Lights, Mast Arms, Anchor Bolts, Inspection		18. Distribution Statement No restrictions. This document is available from the National Technical Information Services, Springfield, Virginia 22161
19. Security Classif. (of this report) Unclassified	20. Security Classif, (of this page) Unclassified		21. No. of Pages 146	22. Price

Form DOT F 1700.7 (8-72) Reproduction of completed page authorized

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