Composite structural panel and method of fabrication

A bridge structure for supporting vehicular traffic, comprising:

• at least one structural composite panel adapted to be disposed on an upper surface of a bridge support structure,
• said at least one structural composite panel comprising:
• a top plate having an upper surface and an underneath surface, wherein said top plate is comprised of a plurality of fiber layers saturated with resin and subsequently cured;
• a bottom plate having an upper surface and a lower surface wherein said bottom plate is comprised of a plurality of fiber layers saturated with resin and subsequently cured;
• a first set of at least one composite preforms having a foam core, each composite preform covered in a fabric,
• wherein said fabric has been saturated with resin which has been subsequently cured;
• a second set of at least one composite preforms having a foam core covered in a fabric and
• wherein said fabric has been saturated with resin which has been subsequently cured;
• wherein said first set of composite preforms are attached to said underneath surface of said top plate;
• and
• wherein said second set of composite preforms are attached to said upper surface of said bottom plate;
• and
• wherein said first set of composite preforms and said second set of composite preforms are attached together forming a structural composite panel.