"Lessons Learned from Installation of ACIP Piles in Various Geologic Settings of the NYC Region," DFI Specialty Seminar on Augered Cast-in-Place Piles, May 17, 2004 . "Supporting Historic Buildings While Tunneling Below," North American Tunneling 2000, Boston , MA , June 6-11, 2000 . (with Hugh S. Lacy and Dong K. Chang )

"Design of Buckhorn Dam on a Weathered Rock Foundation," Eastern Regional Roller Compacted Concrete '98 Technical Short Course by PCA, November 9, 1998 . (with James McCarthy) "Quality Control For Installation of Augered Cast-In-Place Piles," Specialty Seminar on Augered Cast-In-Place Piles sponsored by DFI, June 12-13, 1997 . "Rehabilitating West Point 's Tunnel," Civil Engineering Magazine, September, 1990. (with Robert K. Radske and Jeffrey C. May).