Saving Energy and Costs

The original Reserve Street Lift Station was constructed around 1965. It was a wet-well and dry-pit style. In 1983, it was relocated with the widening of Reserve Street, one of the busiest streets in Montana. Around 2007, the city started a plan to rehabilitate the Reserve Street Lift Station, only to halt the following year when the recession hit. Finally, in 2018, funds were again available to rehab the Reserve Street Lift Station. The city hired Morrison-Maierle to assist with these improvements.

Before Morrison-Maierle’s team got started, the city asked them to review the flows and verify the station from the 2008 design. Morrison-Maierle found that the lift station was seeing a higher growth in flows. Consequently, the city decided to reconsider the initial design of the Reserve Street project.

After careful study and planning, Morrison-Maierle proposed moving from a two-pump to a four-pump system. This configuration results in smaller pumps with less horsepower, but greater responsiveness due to changing flows throughout the day. The pumps also used Variable Frequency Drives (VFD), which allow the lift station to come on and stay on rather than shutting on and off multiple times during the day.