Graham supports each excavation project with a technical staff of highly trained construction professionals and a team of specialists in partnering, estimating, purchasing, scheduling, cost engineering, risk management and safety.

Specialized area of expertise:

Site Work

  • Earthwork
  • Structural excavation
  • Sand base
  • Stone sub-base
  • Asphalt/concrete
  • Site concrete


  • Sheeting, shoring, and support excavation
  • Pile foundations
  • Cast in place concrete structures
  • Concrete structural repair
  • Drainage culverts
  • Utility tunnels

Underground Utilities

  • Storm sewer
  • Water Services
  • Sanitary services
  • Electrical duct banks
  • Mechanical tunnels
  • Utility repair