DSN&A takes pride in undertaking projects in a cost-effective manner from the conceptual stage through the planning, hydrographic surveying, designing, and construction drawing stages to completion. DSN&A's expertise includes site assessments, defining projects and obtaining the necessary regulatory approvals in the shortest period of time.

We follow our projects from development through completion including the following:

Americans With Disabilities Act (ADA)

  • Compliance Analysis

  • Retrofitting Existing Facilities

  • Barrier Free/Handicap Access


  • Application Preparation and Filing

    • Federal

    • State

    • Local

  • Application Processing

  • Public Hearings

  • Environmental Impact Statements