The Cantrell Road Pump Station Project consists of the rehabilitation of an existing 32-million gallon per day (MGD) wastewater pump station, and includes four (4) dry pit submersible pumps and two (2) vertical bar screens. Its high visibility location near downtown Little Rock required a creative design approach to minimize impacts to the surrounding neighborhood during construction, while blending its permanent architecture in with adjacent buildings. Other project challenges included maintaining pumped flow throughout the construction phase to provide downtown Little Rock with uninterrupted sanitary sewer service. Two (2) separate duplex bypass pumping systems were designed and utilized to provide capacities of 15 MGD, and 17 MGD, respectively.
Hawkins-Weir (HW) worked as a subconsultant to RJN Group on the project, and was responsible for the development of civil, demolition, and structural plans and specifications. HW also performed surveying for the project and coordinated the development of architectural plans and specifications through MAHG, Inc. HW also assisted RJN Group during the construction phase by providing periodic construction observation.