Related Links

• AASHTO American Association of State Highway and Transportation Officials
• Digital Bridges
• Federal Highway Administration
  • Bridge Rails
  • Interstate Technical Group on Abandoned Underground Mines
  • Metric Status
  • Research, Development, and Technology
• Pontis/Virtis/Opis Support Page
  • Pontis - BMS Software
  • Virtis - Bridge Load Rating Software
  • Opis - Bridge Design Software (LRFD)
• State DOT websites including State DOTs' standard plans, details, and specifications
• TRB Committee AFF60 - Tunnels And Underground Structures Page
• USDOT Home Page US Department of Transportation.