U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000


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Bridges & Structures

Bridges by Wearing Surface Key

108a Type of Wearing Surface

  • 1 Monolithic Concrete (concurrently placed with structural deck)
  • 2 Integral Concrete (separate non-modified layer of concrete added to structural deck)
  • 3 Latex Concrete or similar additive
  • 4 Low Slump Concrete
  • 5 Epoxy Overlay
  • 6 Bituminous
  • 7 Wood or Timber
  • 8 Gravel
  • 9 Other
  • 0 None (no additional concrete thickness or wearing surface is included in the bridge deck)
  • N Not Applicable (applies only to structures with no deck)

108b Area by Type of Membrane

  • 1 Built-up
  • 2 Preformed Fabric
  • 3 Epoxy
  • 8 Unknown
  • 9 Other
  • 0 None
  • N Not Applicable (applies only to structures with no deck)

108c Area by Deck Protection

  • 1 Epoxy Coated Reinforcing
  • 2 Galvanized Reinforcing
  • 3 Other Coated Reinforcing
  • 4 Cathodic Protection
  • 6 Polymer Impregnated
  • 7 Internally Sealed
  • 8 Unknown
  • 9 Other
  • 0 None
  • N Not Applicable (applies only to structures with no deck)
Updated: 09/09/2013
Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000