Nancy Case O Bourke, PE Consulting Engineer

Nancy has nearly 40 years of engineering and project management experience. Her project management experience includes eight years with the US Army Corps of Engineers navigation program, five years managing an engineering office, and five years managing her own engineering company. Her primary areas of expertise include dredging, navigation, and sediment management projects.

Nancy has worked extensively with both public and private clients managing engineering projects; evaluating dredging requirements; developing disposal area selection criteria; coordinating regulatory requirements; project implementation; disposal site management, including active dewatering techniques; equipment capabilities evaluation permitting assistance. Her project experience includes conceptual feasibility studies, environmental sediment sampling, project design, and construction management.

Technical Specialties

  • Environmental sampling
  • Dredging and disposal
  • Sediment management
  • Navigation projects


  • B.S. Civil Engineering, University of Portland, magna cum laude
  • M.B.A., University of California, Irvine, with honors


  • Registered Professional Engineer – WA (21795), CA (44422), FL (51770)
  • HAZWOPER Certification


O’Bourke, Nancy; Hartman, Gregory L.; Fuglevand, Paul,, In Situ Specific Gravity vs Gain Size: A Better Method to Estimate New Work Dredging Production , Proceedings, Western Dredging Association Twenty-Eighth Technical Conference & Thirty-Ninth Texas A&M Dredging Seminar, June 2008

O’Bourke, Nancy; Hartman, Gregory L., There Today, Here Tomorrow?, Dredging and Port Construction, p16, October 2007

O’Bourke, Nancy; Hartman, Gregory L., Excess Dredging: Implications for Negotiating Environmental Documents , Proceedings Eighteenth World Dredging Congress, June 2007

Otten, Mark; O’Bourke, Nancy, Unique Features that Affect Remedial Action Costs at Contaminated Sediment Sites, Proceedings Western Dredging Association Twenty-Fourth Technical Conference and Thirty-Sixth Texas A&M Dredging Seminar, July 7 2004

O’Bourke, Nancy; McLellan, T. Neil; Shepsis, Vladimir, Piper Channel Geotube Jetty System, A Case History, Proceedings Western Dredging Association Twentieth Technical Conference and Thirty-Second Annual Texas A&M Dredging Seminar, June 2000

Case, Nancy L., Centrifuge Dewatering of Dredged Sediment, Two Pilot Projects, Proceedings Western Dredging Association’s Seventeenth Annual Meeting & Technical Conference; Winner of Dredging Contractors of America’s Outstanding Paper award., June 1996

Case, Nancy L., Recycling Contaminated Sediment into Lightweight Aggregate Construction Material, Proceedings for National Association of Environmental Professional’s 21st Annual Conference, 1996

Shepsis, Dr. Vladimir; Case, Nancy L.; Hartman, Gregory L.,, LADS System, Inc., Thermal Remediation Treatment for Contaminated Sediment, Proceedings of the Second International Conference sponsored by Waterway Committee of the Waterway, Port, Coastal and Ocean Division/ASCE, November 1994

Shepsis, Dr. Vladimir; Case, Nancy L.; Hartman, Gregory L., Silt Curtains Sediment Release Model for Clamshell Dredging, Proceedings WEDA XV Technical Conference, May 1994