Otak is the premier water resources firm in the Pacific Northwest. Our water resource engineers and scientists have a reputation for sound knowledge, creative solutions and responsive customer service. We work at multiple scales from the mountains to the sea and can assist in all phases of project delivery from planning through construction.

  • Surface Water Planning
  • Stormwater Engineering and Design
  • Low Impact Development and Green Infrastructure
  • Hydrologic and Hydraulic Modeling
  • Basin Studies
  • Stream, River and Wetland Design
  • Sediment Transport and Scour Analysis
  • Flood Hazard Management and Floodplain Studies