Bid Docs


Our engineers have significant experience in the planning, design and construction management of municipal wastewater systems. We have designed treatment plants, many miles of sewer line, and dozens of pump stations.

In the design of wastewater treatment plants, our team continuously looks for opportunities to reduce the operations and maintenance costs (and efforts) that can be so high with modern wastewater plants. Of special note are the aerated lagoons in Amity, Willamina, and Junction City. Through careful planning and design, HBH was able to design aeration systems that save the cities thousands of dollars per year in electrical costs and literally millions in construction costs.

Our wastewater system experience includes:

Wastewater Treatment Plant Design

  • Aerated Lagoons
  • Activated Sludge
  • Sequencing Batch Reactors
  • Phosphorous Removal
  • Solids Digestion
  • Tertiary Filtration
  • Effluent Irrigation
  • UV Disinfection
  • On-site Chlorine Generation
  • Dechlorination
  • Outfalls

Facilities and Master Planning
NPDES Permit and MAO Negotiation
Mixing Zone Studies
Inflow and Infiltration Removal
Pump Station Design
Financing Assistance

Some representative projects for HBH include:

  • Wastewater Facilities Plans and Master Plans:
    • Myrtle Point
    • Hood River
    • Willamina
    • Tri City
    • Amity
    • Riddle
    • Monmouth
  • Albany Oak Creek and 34th Avenue Lift Stations and 24" Pressure Mains (2 miles)
  • Junction City Wastewater Treatment Plant
  • Willamina Wastewater Treatment Plant and Pump Station (2)
  • Amity Wastewater Treatment Plant and Pump Station (2)
  • Newport Neohola Point Pump Station
  • Coos Bay Pump Station 18
  • Coos Bay Pump Station 5
  • Lincoln City West Devils Lake Road Pump Station
  • Roads End South Pump Station
  • Lincoln City Sal-La-Sea Pump Station
  • Lincoln City West Devils Lake Road Pressure Main Extension
  • LaFayette Wastewater Treatment Plant