In support of Willamette Pump Station evaluation project, PEI provided services to evaluate the existing pump station control and telemetry system. This evaluation covered the age and condition of the PLC and hardwired controls, operator Interface and instrumentation. In addition, the condition and performance of the telemetry communication system was closely scrutinized due to the critical importance of the station and the need for reliable and accurate status information. PEI performed operational testing to document the pumping capabilities of the station and determine if control programming changes would help reduce the pump ragging problems and improve performance. PEI provided a written assessment report for the pump station discussing the current state of the instrumentation and controls, detailing deficiencies, and defining an action plan for improvements and modernization. As a direct result of this work, a modernization project was quickly initiated where PEI replaced obsolete control equipment which resulted in an immediate improvement in station reliability and maintainability.
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In the summer of 2016, Portland Engineering Inc. successfully completed the replacement of the electrical and control system for the City of Astoria’s sewage influent lift station (Pump Station #1). This project utilized the newly approved and highly efficient delivery method of Progressive Design Build with a Phased Lump Sum. With this delivery method the job was completed quicker than can be done using a standard design, bid, build method. Progressive design build projects are completed in phases where a team of engineering and construction contractors provide design services in phase 1 and implement the design in subsequent work phases. This approach was highly collaborative and allowed Portland Engineering as the Design/Build contractor and the City of Astoria to work together during the design phase to resolve problems while eliminating unknowns. The costs for the construction phases were accurately determined and the Owner’s design review and design standards were fully incorporated. The Progressive Design Build delivery method allowed the City the flexibility to make procurement and contracting decisions at the completion of each phase.
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