1. Albrecht P. and Naeemi A. H. (1984). “Performance of weathering steel in bridges.” Rep. No. 272 National Cooperative Highway Research Program.
2. American Association of State Highway and Transportation Officials (AASHTO). (1990). Guide specification for safe life assessment of steel bridges Washington D.C.
3. American Association of State Highway and Transportation Officials (AASHTO). (1994a). Load and resistance factor design bridge design specifications 1st Ed. Washington D.C.
4. American Association of State Highway and Transportation Officials (AASHTO). (1994b). Standard specifications for structural supports for highway signs luminaries and traffic signals Washington D.C.
5. American Institute of Steel Construction (AISC). (1998). Load and resistance factor design specification for structural steel buildings 2nd Ed. Chicago.