Site work for a civil project in Great Falls, Montana. Completed plans call for site work for a water / sewer project.

Construction estimates range from $5 million to $10 million. The Project consists of installing a new sewage forcemain from Lift Station No. 1 to the Wastewater Treatment Plant (WWTP), including a Missouri River crossing, and completing various improvements to Lift Station No. 1. Forcemain construction methods include trenched placement within each riverbank and Horizontal Directional Drilling (HDD) to cross the channel. A new cast-in-place concrete meter vault at the WWTP will provide a terminus for the new forcemain. Piping, valves and exterior vault replacement will facilitate forcemain connection at the Lift Station. The HDD Subcontractor will be qualified in general accordance with Section 4.4 of the RFQ/RFP. Lift station upgrades include replacement of the mechanical bar screen, several process valves, ultrasonic level transducer and controller, slide gates, service water supply and distribution, lighting, electrical and miscellaneous HVAC components. A new overhead door and interior coatings, minor plumbing, structural and site/civil repairs are also scheduled. Additional Lift Station No. 1 improvements will be considered with GCCM assistance including stormwater pump replacement, a backup generator and permanent bypass piping. *The value for this project is based on a financial range. The value is listed as the highest possible cost from the range provided by a stakeholder or official project document. The City Project Manager and contact information is as follows: Russell Brewer, PE, Senior Civil Engineer 1025 25th Avenue NE Great Falls, Montana 59404 (406) 771-1258 rbrewer@greatfallsmt.net GCCM Question Deadline 5:00 PM, Tuesday May 16, 2023 The 6th Street Pump Station (Lift Station No. 1) was constructed in 1959 to convey combined sewer flows generated in neighborhoods south and east of the Missouri River to the WWTP, located on the northern bank. The contributing basin accounts for nearly 40% of the WWTP average day flow (ADF). Four sewage pumps, two low capacity and two high capacity, were installed with the original facility. As regulations progressed, the combined sewer system was separated into sanitary and storm sewer utilities. While effective, older collection infrastructure continues to experience significant inflow and infiltration (I&I) during major storm events. The pump station was upgraded in 1975 to include an influent mechanical bar screen, a second wetwell and three additional high-capacity pumps. The newer equipment, referred to as the stormwater pumps, and expanded wet-well were necessary to convey wet weather flows. The four original pumps, known as the large and small wastewater pumps, serve typical, dry weather conditions. Over the years, each of the seven pumps has been rebuilt.