Colorado River Pump Stations Improvements Project
Project Details
Client
Ute Water Conservancy District
Location
Grand Junction, CO
Services Provided
Feasibility Analysis
Infrastructure Design
Construction Administration
Project Highlights
- Increased District’s Backup Water Supply Capacity from 8 to 17.5 MDG
- 7 Vertical Turbine Pumps Installed
- 24″ & 30″ Transmission Lines
The Ute Water Conservancy District’s raw water delivery portfolio is unique and complex. While the District’s water treatment plant is primarily supplied source water generated in and conveyed through the Plateau Creek watershed, the District can use water supplies from the Colorado River as a backup source of supply.
To increase system reliability, reduce vulnerabilities, and increase the District’s firm yield of their raw water supplies, the District needed to double the capacity of their Colorado River Pump Stations. To support the District with their efforts, Providence Infrastructure Consultants was retained to support the Colorado River Pump Stations Improvements Project.
The Project involved rehabilitating two raw water supply pump stations to increase the District’s backup water supply capacity from 8 to 17.5 MDG from the Colorado River to the water treatment plant. Services included the planning, condition assessment, feasibility analysis, design, and construction administration of the pump stations. Phase I (2016) involved civil, mechanical, electrical, and controls design for the system’s River Pump Station. Phase 1 project elements included the installation of three 500-HP vertical turbine pumps, discharge/manifold piping, a new factory-built motor control center to house VFDs, switchgear, and controls equipment. The installation of several hundred feet of new 30” welded steel transmission line including the open cut crossing of Interstate 70 in DeBeque Canyon and the hand-minded crossing of the Bureau of Reclamation / Orchard Mesa Irrigation District’s 800-cfs Power Canal. Phase II (2017) involved the civil, mechanical, electrical, and controls design for Pump Station No. 2. Phase II project elements included the installation of four 250-HP vertical turbine pumps, discharge/manifold piping, a new motor control center to house VFDs, switchgear, and controls equipment, the installation of 24” transmission line, and the complete refurbishment of the station’s building. Preliminary design required detailed data collection and hydraulic evaluations between the system’s two pump stations and the water treatment plant. In addition, preliminary design involved examining the feasibility of tunneled installations under Interstate 70 and the Power Canal. Ultimately, both facilities were crossed by trench installation as the risks associated with trenchless construction in this area were significant.