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Wastewater Pump Station Evaluations
City of Bellevue, WA

Bellevue, Washington is a vibrant and growing community in the Puget Sound that sits between Lake Washington and Lake Sammamish. The City engineering department owns and operates 46 wastewater pump and flush stations that were built in the 1950s, rebuilt in the 1980s, and need improvements. To prioritize rehabilitation and replacements, and avoid emergency repairs, the City needed to conduct condition assessments on 33 pump stations in only two months. Because City engineers and field crews were occupied with multiple other projects, they looked to Murraysmith to take this off their plate.


Murraysmith worked with the City’s aggressive schedule and coordinated with field crews who were only available to visit the pump station sites during the second half of the month. Murraysmith evaluated not only for condition and criticality, but also for obsolescence, which better informed the discussion surrounding probability of failure and consequence of failure. The City trusted Murraysmith to provide consistency among evaluations that focused on maintaining station reliability, serviceability, safety, and efficiency.

The City now looks to Murraysmith’s Pump Station Evaluations as a planning and budgeting tool that supports their forward-looking decisions to support a growing population.


Project Highlights

  • Evaluated 26 stations in two months
  • Incorporated seven previously evaluated stations into the plan
  • Identified corrective actions to maintain level of service
  • Long-term plan scheduled into 75-year financial forecast
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