Structural Engineering

  • Building Evaluations.
  • Seismic Upgrade Design.
  • New and renovation structural design.

Ralph Turnbaugh, P.E. serves as project principal and lead engineer on many of the firms key projects. His years of design experience includes all types of construction and ranges from renovation to new structures.

Civil Engineering and Planning

  • Master Planning and Site Design.
  • Agency Approvals and Permits.

T.M. Rippey Consulting Engineers provides a full range of structural design for all types of construction. The firm’s experience includes steel, concrete, masonry and wood construction systems. In addition, the firm frequently provides pre-purchase building evaluation and retrofit designs for renovations and seismic upgrades.

T.M. Rippey Consulting Engineers' civil engineering group complements its structural engineering staff and broadens the firm's ability to serve its clients.


Karl Koroch, P.E. brings 28 years of site development and civil engineering experience. He has extensive experience in both public sector and private development, and is particularly capable in site utility master planning, grading design, project development feasibility, cost analysis, and permitting.




  • Site Development Documents.
  • Public Infrastructure Design.
  • Private Utility Design.
  • Public and Private Development Permitting.

Tim Rippey, P.E., S.E., has provided structural engineering design services to numerous clients over his 30 year career. He is respected for his practical knowledge of design, and his ability to work effectively with project owners and designers.