... No. FHWA-NHI-0 1-0 23, Federal Highway Administration, Washington, D.C.O’Neill, M. W. and Reese, L. C. (1999). Drilled Shafts: Construction Procedures and Design Methods. Report No.FHWA-IF-9 9-0 25, ... and Design Methods. FHWAPublication No. FHWA-HI-8 8-0 42, 564 pp.Sabatini, P. J., Bachus, R. C., Mayne, P. W., Schneider, T. E., Zettler, T. E., FHWA-IF-0 2-0 34, 2002, Evaluation ofsoil and rock properties, ... agenda item (see Allen, T. M., 2005,Development of Geotechnical Resistance Factors and Downdrag Load Factors for LRFD Foundation StrengthLimit State Design, FHWA, Publication No. FHWA-NHI-0 5-0 52,...