ASCE-IA Honors Sioux Center Wastewater Treatment with Outstanding Civil Engineering Award

ASCE-IA Honors Sioux Center Wastewater Treatment with Outstanding Civil Engineering Award

The City of Sioux Center’s Wastewater Treatment Facility earned an American Society of Civil Engineers – Iowa Chapter Outstanding Civil Engineering Award for its work to meet nutrient reduction and disinfection goals in the community. This award recognizes engineering firms for projects that demonstrate an exceptional degree of innovation, complexity, achievement, and value. The basis for the award is “an engineering project that demonstrates the greatest engineering skills and greatest contribution to civil engineering progress and mankind.” In making the selection, the following criteria are given special weight: contribution to the well-being of people and communities, resourcefulness in planning and in solution of design problems, pioneering in the use of materials and methods, innovations in construction, consideration of impact on environment, unusual aspects, and aesthetic values. 

The City of Sioux Center needed to update their wastewater treatment facility to meet effluent ammonia and disinfection limits in their new DNR permit and to meet Iowa’s Nutrient Reduction Strategy. A comprehensive approach was taken to evaluate the wastewater treatment facility and its environmental impacts. The extended aeration activated sludge process with biological nutrient removal option was chosen to provide consistent high-quality effluent and operational flexibility.  

Bolton & Menk provided a plan detailing the city’s options, alternatives for consideration, cost of services study (rate information), meetings with community industries to engage all stakeholders in the solutions, and assistance with SRF financing. The Iowa Nutrient Reduction Strategy Report was included with an anti-degradation alternatives analysis. Bolton & Menk used state-of-the-art 3D design software to produce a realistic model of the wastewater treatment facility and allow operators, the public utilities department, city management, and council to easily review and understand the improvements.  

This comprehensive effort allowed the city to proceed confidently in expanding their wastewater treatment facility to replace aging infrastructure, meet nutrient reduction and disinfection goals, and provide the community with a facility to protect the environment and allow the community to grow.  

Learn more about our water and wastewater services here!  


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