This project consists of the replacement of low lift station pump check valves. The project will also include filter improvements and non-potable water upgrades, electrical updates, and a sluice gate replacement.
FY22 New Construction Services Miscellaneous Contract #1
This solicitation will provide for ongoing construction services for the installation of large water and sewer services as requested for commercial/residential use. The work also includes opportunities for installation of short street main extensions (< 100′), fire hydrant relocations and dismantlements as related to new requests.
FY22 New Services Miscellaneous Contract #2 – CANCELLED
Ongoing contract for installation of large water and sewer services as requested for commercial/residential use. Also includes opportunities for short street main extensions (< 100′), fire hydrant relocations and dismantlements as related to new requests
Progressive Design-Build Services for Mallard Creek Interceptor Improvement Project – Phase 1 and Phase 2
Charlotte Water (CLTWater) is seeking Progressive Design-Build services to assist with the analysis, design and construction of the Mallard Creek Interceptor Improvement Project – Phase 1 and 2 (Project). Proposers need to assemble a team of experts including at a design, survey, geotechnical, environmental, permitting, pre/post blasting surveys and related seismic monitoring, real estate acquisition including appraisal and legal, and communication experts and construction contractors.
The Mallard Creek Basin service area consists mainly of residential zoning, with increasing commercial development around the new Blue Line Extension, UNC Charlotte, and the University Research Park. Infrastructure improvements are needed, not only to support current flows and maintain required service levels within the Mallard Creek Basin, but to also keep pace with the rapid growth and development. Hydraulic modelling conducted for the Mallard Creek Basin indicated that the Mallard Creek interceptor is currently capacity limited under two-year peak flow conditions. Future population and flow projections further suggested that flows in the basin would likely grow about 20 percent every 10 years. Per Charlotte Water’s Capacity Assurance Program (CAP), for the purposes of accepting new connections, adequate capacity exists when the sanitary sewer system can convey flows at a 2-year Level of Service (LOS) between the point of connection and the wastewater treatment plant without excessive surcharge, while future enhancements are sized for the 10-year peak flow condition.
Dukes Chlorine Dioxide Pipeline – Cancelled
This project is to install a new chlorine dioxide line from the Dukes Water Treatment Plant to the intake. The scope also includes the replacement of the existing chemical piping.
McAlpine Creek WWMF Nutrient Harvesting
While nutrient harvesting has not yet been implemented by CLTWater at any of its wastewater treatment facilities, CLTWater strives to promote beneficial reuse at the McAlpine Creek WWMF and across its other wastewater treatment facilities. To maximize economies of scale, a nutrient harvesting facility (Facility) at the McAlpine Creek WWMF would create the highest current and future value proposition for CLTWater and the treatment plant network. Currently, primary sludge (PS) and waste activated sludge (WAS) from two of the five wastewater treatment facilities are processed at McAlpine Creek WWMF.
In the future, PS and WAS from four of six wastewater treatment facilities will be processed at the McAlpine Creek WWMF. Dewatering centrate is high strength waste typically recycled within the treatment plant for processing. Implementation of a Facility would allow CLTWater to create a product that can be beneficially reused (i.e., product to be bagged or bulk shipped and sold) and gain some treatment capacity at the McAlpine Creek WWMF. Designing, constructing, and operating the Facility at the McAlpine Creek WWMF is one component of implementing the overall CLTWater nutrient management and biosolids diversification strategy.
Wilkinson Boulevard ITS Phase 2 – CANCELLED
This project will install single‐mode fiber optic cable installed in new directionally bored, hand-dug and trenched conduit, existing conduit, and aerial attachments to poles. It will remove existing copper communication cables. This project includes entrances and interconnect equipment for existing traffic signal control cabinets and the installation of traffic management cameras. This project also includes fiber optic cable splicing, testing, Ethernet communications equipment, traffic management camera equipment and other related activities.
Graham Street Extension Intelligent Transportation Systems
This project will install single‐mode fiber optic cable in existing conduits. This project includes entrances and interconnect equipment for existing traffic signal control cabinets and the installation of traffic management cameras. This project also includes fiber optic cable splicing, testing, Ethernet communications equipment, traffic management camera equipment and other related activities.
Sardis Road Intelligent Transportation System (ITS) – CANCELLED
This project will install single‐mode fiber optic cable installed in new directionally bored, hand dug and trenched conduit, existing conduit and aerial attachments to poles. This project includes entrances and interconnect equipment for existing traffic signal control cabinets and the installation of traffic management cameras. This project also includes fiber optic cable splicing, testing, Ethernet communications equipment, traffic management camera equipment and other related activities.