Our Services

GDA is a multi-disciplined firm with services provided in-house for civil, structural, environmental, and utility projects.

Civil Engineering

  • Site Development Planning, Design and Permitting

  • Stormwater Management

  • Erosion and Sedimentation Control

  • Site Utility Design and Permitting

  • Stormwater Pollution Prevention Plans

  • Landscape Planning

  • Site Photometrics Design

  • Construction Observation

Structural Engineering

  • Analysis

  • Design of Concrete, Masonry, Aluminum, Steel, and Wood Structures

  • Wind Load Analysis

  • Forensic Analysis and Failure Investigation

  • Finite Element Modeling

  • Shop Drawings

  • Construction Observation

Land Planning

  • Site Feasibility Studies

  • Conceptual and Master Plans

  • Zoning and Land Use

  • Concurrency Management

Construction Services

  • Opinion of Probable Construction Costs

  • Project Schedule Development

  • Bid Evaluation and Recommendations

  • Change Order Administration

  • Construction Observation

  • Progress Payment Verification and Certification