DGL is a certified Disadvantaged Business Enterprise (DBE) and Small Business Enterprise (SBE) with the Ohio Department of Transportation.

Our prequalifications include:

  • Bicycle Facilities and Enhancement Design

  • Non-Complex Roadway Design

  • Complex Roadway Design

  • Interchange Operations / Modification / Justification Study

  • Safety Study

  • Limited Right-of-way Plan Development

  • Complex Right-of-way Plan Development

  • Level 1.1 / 1.2 Bridge Design

  • Level 2 Bridge Design

  • Level 1 Bridge Inspection

  • Basic Traffic Signal Design

  • Traffic Signal Systems Design

  • Limited Lighting Design

  • Construction Management Firm