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Mansfield Wastewater Treatment Plant Improvements

SERVICES: Civil Engineering | LOCATION: Waterville | CLIENT SECTORS: Cities & Counties We provided construction management services (as part of a design team) for the replacement of the Town of Mansfield’s sewage lagoons. The existing lagoons were constructed with bentonite liners in 1968 and these liners had been failing since 2003. The project scope of work included expanding the…

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No. 1 Canyon Drainage Improvements

SERVICES: Civil Engineering | LOCATION: Wenatchee | CLIENT SECTORS: Cities & Counties In 2012 wildfires in the No. 1 Canyon area of Wenatchee wiped out many of the grasses and plants on the hillsides. The severe rains that came the following spring, combined with the denuded hillsides, caused flooding events in the urban areas of the canyon.  We developed…

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Western Hills Stormwater Facility | City of Wenatchee, WA

SERVICES: Civil Engineering | LOCATION: Wenatchee | CLIENT SECTORS: Cities & Counties We provided engineering services for the Western Hills Stormwater Facility in Wenatchee. The  multi-use facility, which functions as a park during typical moderate weather, is designed to store canyon runoff during extreme weather events that periodically occur in No.  1 Canyon (with discharges into the City of…

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Wenatchee Stormwater Collection System Evaluation

SERVICES: Civil Engineering | LOCATION: Wenatchee | CLIENT SECTORS: Cities & Counties Based on previously obtained GIS data, Erlandsen provided stormwater engineering services for the hydraulic modeling of the City of Wenatchee’s stormwater collection system. The City’s existing collection system was reviewed to check the accuracy of available mapping.  SWMM software was used to verify the collection systems ability…

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Stormwater Geodatabase Model

SERVICES: Civil Engineering / GIS | LOCATION: Wenatchee | CLIENT SECTORS: Cities & Counties We designed and implemented a comprehensive stormwater geodatabase model for the City of Wenatchee, which also included: Importing GIS data from the existing stormwater model Importing GPS data of stormwater facilities and comparing it with existing GIS data Developing a workflow for managing the City’s stormwater…

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Busby International Major Plat

SERVICES: Land Surveying | LOCATION: Moses Lake | CLIENT SECTORS: Commercial & Industrial We provided design services for the development of a seven-lot industrial development.  This project included: Development of a new access roadway Storm drainage facilities Water extensions and design of a sewage force main system The sanitary sewer collection system is designed to collect sewage using grinder…

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