Engineering, Architecture, Planning


TKDA offers specialists in civil, mechanical, electrical, and structural engineering disciplines. Having all the disciplines in-house provides our clients with a single source for most of their project needs. Efficiencies allow us to respond to technical issues quickly to keep projects on time and on budget. Technical regulations are changing constantly. Our over 80 licensed engineers are knowledgeable of these changing regulations and will guide you from the most basic design through the most complex solution.

Civil Engineering

Site Design

  • Master Planning
  • Site Selection and Planning
  • Grading and Drainage
  • Stormwater Management
  • Roads and Parking Lots
  • Erosion and Flood Control
  • Permitting
  • Topographic Surveys


  • Highways
  • Bridges
  • Railroad
  • Airports
  • Trails
  • Traffic Studies and Control

Water and Wastewater Services

  • Water Supply Systems
  • Sanitary Sewer Systems
  • Water and Wastewater Treatment Plants
  • Storm Water Management
  • Grant Writing

Electrical Engineering


  • Medium Voltage Distribution System Design
  • Building Power
  • Data Center UPS and Critical Generator Power System Design
  • Power System Short Circuit, Arc Flash, and Coordination Analysis
  • Building Condition and Reliatbility Assessments


  • Interior, Egress, and Exterior Building Lighting
  • Parking Ramp
  • Roadway and Bridge Design
  • Athletic Field Lighting
  • Lighting Assessments and Energy Audits

Signal and Controls

  • Phone/Data Cabling and Raceway Design
  • Fire Alarm System Design
  • Building Access Control, Camera Monitoring, and Gate Security Design
  • Instrumentation and Control System Design and Programming

Mechanical Engineering

HVAC Systems

  • Industrial
  • Educational
  • Governmental
  • Commercial

Alternative Energy

  • Solar
  • Geothermal
  • Heat Recovery

District Cooling Plants and Distribution

  • Chillers
  • Chilled Water Storage

District Boiler Plants and Distribution

  • Boilers
  • Biomass
  • Waste-to-Energy
  • Emergency Boiler Systems
  • Steam & Hot Water

Power Plant

  • Combined Heat and Power
  • Plant Upgrades
  • Combustion Turbines
  • Air Pollution Control

Piping Systems

  • Chilled Water, Steam, Hot Water
  • Plumbing
  • Fire Protection
  • Process
  • Snowmelt/Underfloor Heating

System Evaluations

  • Energy Studies and Conservation Design
  • Economic Analysis
  • Commissioning
  • Troubleshooting and Optimization

Structural Engineering

Structural Design

  • Building Design
  • Expansions and Renovations
  • Seismic Design
  • Retaining Walls and Tunnels

Structural Evaluations

  • Load Analysis and Ratings
  • Condition Assessments
  • Feasibility Studies

Specialty Services

  • Demolition Documents
  • Piping and Equipment Supports
  • Industrial Structures