Review of Services


Hydrologic and Hydraulic Modeling 

 

Urban Wet Weather

  • SWMM and MIKE URBAN catchment and pipe network development
  • SWMM-MIKE URBAN model conversions
  • Flow monitoring planning and analysis
  • Model calibration and automation techniques
  • Drainage and wastewater master planning support
  • CSO analysis and design support
  • Staff augmentation, design team integration

Open Channel and Hydraulic Facility Modeling

  • River and stream flooding analysis
  • Canal and diversion structure modeling
  • Culvert hydraulic analysis
  • Gate and weir analysis
  • Sediment transport modeling
  • Integration of hydraulic modeling into facility decision-making

Low Impact Development and Green Stormwater Infrastructure 

  • Innovative site planning and layout
  • Integration of stormwater management and landscaping
  • Value engineering of LID versus traditional drainage design
  • Hydraulic modeling of bioretention and other LID measures
  • Green stormwater infrastructure retrofit planning and design
  • HSPF and SWMM modeling to support facility sizing standards

Civil and Infrastructure Design 

  • Utility design in crowded utility corridors
  • Site civil design and wet utility layout
  • Storm and sewer pipe design
  • Watermain and service design
  • Construction-phase assistance

Drainage Analysis and Permitting 

  • Residential stormwater planning assistance
  • Drainage analysis for litigation
  • Onsite drainage and bioretention design
  • King County Surface Water Design Manual assistance 
  • Stormwater Management Manual for Western Washington assistance 

Stream Hydraulics and Restoration 

  • River and floodplain hydraulic modeling and analysis
  • Stream restoration design and hydraulics
  • Wetland mitigation design
  • Riparian shading and planting guidance
  • Culvert replacement analysis and design
  • Freshwater-marine interface analysis and design