icon City of Hood River Outfall Project

Hood River, OR 97031
Budget: $2 million
Completion: Current

Project Engineers:

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Bell Design Company was contracted by the City of Hood River to oversee and manage the redesign of the City’s 60-inch combined sewer and sanitary outfall from the municipal wastewater treatment plant.

The project involved evaluating several alternative outfall locations, performing a mixing zone analysis, and analyzing the WWTP’s hydraulics.
BDC designed the modifications of the existing chlorine contact chamber to accommodate the new outfall pipe, the 1,950 feet of 36-inch HDPE butt-fused pipe along the Port of Hood River’s Hook area, and the 300 feet of in-water buried diffuser pipe.

Bell Design Company has served as the prime consultant for the Outfall Redesign, but also is contracted with Vigil-Agrimis to perform the in-water construction design and to acquire the required in-water work permits.

The objective of this project is to develop a new confluence zone for the municipal wastewater treatment plant to flush out treated effluent into the Columbia River, by extending the current sewage pipe under the Hook road and farther into the active river currents on the Wells Island side of the plant.

This redesign is meant to address the undesirable accumulation of wastewater near the shoreline and nearby recreational use areas due to the formation of a reverse-current eddy which resulted from a newly-created landmass know as the "Spit".

This landmass developed in the Columbia River after a glacier broke free of nearby Mount Hood and washed down Hood River into the Columbia in 2006.
BDC expects the project will require approximately 2,000 feet of land piping with a few hundred feet of underwater pipe needed as well.

A custom manifold will be engineered for this project, and this will be installed by specialized barges in a very unique implementation process.

Upon completion of the project, the City of Hood River plans to partner with the Port to build a pedestrian and bike walkway which will connect the Hook Boat Launch to the Waterfront Park trail.

For more information, and for projected close times for the Hood River Hook recreational area, read more about this project in The Hood River News.

Hood River Outfall Project Map
The work an unknown good man has done is like a vein of water flowing hidden underground, secretly making the ground green.

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  • D&B DUNS Number: 961811833
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  • NAICS Primary Code: 541330

  • Bell Design Company is a civil engineering company with 20 years experience in the Portland metro area, and also servicing the Columbia River Gorge. We provide planning, design and permitting consultation for all sizes of company. We also use advanced surveying techniques, CAD modeling, Hydraulic Modeling, GIS and GPS surveying and mapping for all of our projects. We do Structural Analysis, Structural Design, Gravity and Lateral Design and Code Review, Bridge Design & Evaluation, Foundation Design, Retaining Wall Design, Seismic Retrofits, Failure Investigations, Peer Reviews, Agency Reviews, Water or sewer or Storm Analysis, Water and Sewer and Storm Master Plans, Water and Sewer and Storm Design, On-Site Septic Design, Hydraulic and Hydrologic Modeling, Surge Analysis, Scour Analysis, Flood Elevation Studies. We are also a Oregon Certified Water Rights Examiner. We perform Public and Private Road Design, commercial and municipal, Plat and Subdivision Roads, Site Design and Site Plans, Drainage Plans, Horizontal and Vertical Curves, Pavement Design, Guardrail & Appurtenances, Storm Water Facilities, Falsework, Formwork, Cost Estimating, Contract Management, Construction Inspection, Project Start-up & Close Out, Safety, Quality and Work Plans, Delay and Comp Claims, CPM Scheduling, O&M Manuals, Change Order Management, Progress Payment Verification, Land Divisions and Adjustments, Topographical Mapping,ALTA Surveys, Boundary and Legal Surveys, As-built Surveys, Construction Layout & Staking, Corner Location, GPS and GIS Surveys or Mapping, Mining Reclamation Plans, Site Plans, Legal Description Prep and Review. We also provide AutoCAD Services, CAD Standards Development, As Built Updates, Geotechnical Investigations, Erosion and Sediment Control, Lab Services & Field Testing, Shallow Foundations, Deep Foundations, Braced Cuts and Sheet Pile Design, Soil & Ground Modifications, Slope Stabilization and Slope Analysis. We provide all Environmental Consulting and Training, Material & Waste Recycling, Remediation Design, Reclamation Design, Permitting & Planning, Compliance & Monitoring, Pollution Prevention and control for your project. Bell Design Company is the Civil Engineering and land survey company of choice for SE Washington State, Portland Metro, Hood River, Stevenson, the Dalles, Goldendale, Trout Lake, Gresham, Troutdale, Vancouver, and Oregon State. We service the PDX, SEA and Bend DMAs and honor all government, federal, municipal, state and regional contracts on time and under budget. We are a safe routes to school consultant, and are in the federal safe routes to school national partership. We are also on the safe routes to school committee for washington state. We are an acting advisor for the safe routes to school program in oregon and washington state.