The project was designed to demo the existing covered sediment basins and construct a new building with advanced water treatment to better meet the City’s water demand. All the work had to be performed while maintaining water to the City’s filters so the plant could still supply water to The City of Laurel and the CHS Refinery. The challenge on this project was figuring out pour sequences to maximize pour days. We knew cold weather was likely going to be a challenge on the tail end of the project so we knew we needed to maximize every available day to pour. We were able to work with the design engineer and increase some of the pour sizes which reduced the number of concrete placement days and helped the project schedule. Due to the tight schedule of this project, large concrete pours had to take place during a historically cold February. To keep the project progressing large tenting structures had to be constructed to cover each pour. Once the concrete was in place, COP Construction utilized ground heaters carefully draped across the forms to provide the needed heat to allow the concrete to cure properly.