Overview

Water is an important part of the world in which we live.  Surface water and stormwater modeling and design are key elements to the success of numerous development and improvement projects.

NW Engineers staff stays abreast of the changing needs in surface water and stormwater collection, conveyance, treatment, and modeling.  Whether the necessary task is sizing a storm drain pipe or a flood control channel, determining treatment options for a house or for a city, protecting a wetland or a warehouse, the team at NW Engineers has the needed experience to perform comprehensive planning, design, and management in the realm of water resources.  With the help of a wide array of computational aides, the professionals at NW Engineers have the experience to identity, evaluate, and solve a vast field of water resources issues.

Site Stormwater Management

• Collection system design
  
• Hydrologic studies and runoff analysis
  
• Stormwater detention facilities
  
• Flow control design and level pool routing analysis
  
• Groundwater recharge facilities
  
• Water quality treatment and facility design
  
• Outfall permitting and design 

Surface Water Management

• Bank stabilization, erosion protection, and scour control
  
• Flood hazard analysis
  
• Flood plain determination, certifications and mitigations
  
• Stream improvements and restoration
  
• Stream and floodplain modeling 

Conveyance and Channel Design

• Bridge hydraulics and channel modeling
  
• Canal design, lining, and replacement
  
• Fish passage design
  
• Culvert design and replacement
  
• Open channel design
  
• Combined Sewer Outfall separation
  
• Pipeline and pump station design 

Watershed Management

• Long-range conservation and source protection plans
  
• Erosion control
  
• Stream and watershed modeling
  
• Watershed mapping, evaluation, and planning
  

Low Impact Development Planning and Design

• Jurisdictional cooperation
  
• Site design input and comprehensive control strategies
  
• Vegetative treatment options
  
• Localized runoff mitigation practices
  
• Low maintenance solutions

Contact:

Bob Thayne
503 601 4401
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