Building Sewer Relining (less than 6″)

Charlotte Water is seeking qualified contractors to provide trenchless relining methods to sewer drain lines 6 inches in diameter or smaller located in industrial and administrative facilities. The intent is to rehabilitate aging building sewers, extend service life, reduce infiltration/exfiltration, and restore reliable service without full pipe replacement.

Siphon Cleaning Services

​Cleaning and post cleaning inspection services for various diameters, lengths and configurations of inverted siphons, including flow control, throughout the Charlotte Water service area. The diameters of siphon pipes to be cleaned and inspected range from 6-inch to 48-inch and include both single and multi-barrels.   The Company shall verify the sizes and configurations of each siphon and report any discrepancies to the as-builts to Charlotte Water.  Cleaning schedules will vary, as required, and may include the need to perform services during nights, weekends, and/or City observed holidays.  Company awarded must have a vacuum truck to haul sewage debris to landfill.  ​

FY26 Sanitary Sewer Rehabilitation

The Project consists of constructing rehabilitation of manholes, repair of sewer system defects and service laterals, installing new sewers and manholes to replace existing sewers and manholes, installation of cured-in-place pipe lining, pipe bursting, other miscellaneous manhole rehabilitation work, and all preparatory work such as sewer cleaning and television inspection.

Multi-Sensor Inspections

The work consists of all labor, material, and equipment to inspect existing large diameter sewers using Multi-Sensor (Laser/LiDAR), Sonar, and HD Image technology. The MSI deployment shall provide a three-dimensional representation of internal pipe conditions above the flow line using laser/LiDAR measurement and below the flow line using sonar measurement and both combined with HD imaging. The work includes locating manhole using signal transmitting device, processing the MSI data and delivering the results of the processing in a ready to use format.

Beaverdam Creek Pump Station Expansion

This project includes upgrading the Beaverdam Creek Pump Station. Work will involve removing two sets of the existing two-stage pumps and installing four sets of two-stage pumps. Work also includes installing surge tanks and implementing interior modifications to the wet well to improve the hydraulics during self-cleaning operations.

CHEMICAL GROUTING AND PIPE LINING

The objective of this RFP is to solicit proposals for chemical grouting and pipe lining services.

The company shall provide chemical grouting and cured in place pipe lining at various public and private locations as needed within the City of Charlotte.  The services included are but not limited to:

    • Chemical grouting, and cured in place pipe lining
      • Provide professional consultant service for best practices
      • Provide recommendation on the installation process
      • Provide recommendation during the design and installation phase of the project
      • Provide professional representation during the design and installation of the project
    • Installation process
      • Shall be able to install chemical grouting, and cured in place pipe lining
      • Shall be able to remove and replace
        • Storm drainage structures
        • Curb & gutter
        • Asphalt
        • Incidental work to complete the chemical grouting, and cured in place pipe lining

Upper Little Sugar Creek Replacement Sewer – Phase 2 and Phase 3 from Bilmark Avenue to Canterwood Drive and 911 Georgetown Storm Drainage Improvement Project (SDIP)

The Project consists of the installation of 250 LF of 8” sewer; 3,060 LF of 16” sewer; 3,100 LF of 18” sewer; 37 manholes; bypass pumping of wastewater; and other related sewer installation/replacement work for the Upper Little Sugar Creek Replacement Sewer Phases 2 and 3 portions. For the 911 Georgetown SDIP, the project consists of the Installation of 394 LF of 5’ X 4’ Precast R.C. Box Culvert; 60 LF of 10’ X 8’ Precast R.C. Box Culvert; 9 masonry drainage structures; and other related storm drainage installation work.

Siphon Cleaning Service

Charlotte Water needs to establish an annual sanitary sewer siphon cleaning program to optimize system performance and prevent sanitary sewer overflows.  Many of the siphons are difficult to clean and may require specialty cleaning and inspection equipment.  The intent of this project is to clean each siphon in the collection system at least once every year.

Cleaning and post cleaning inspection services for various diameters, lengths and configurations of inverted siphons, including flow control, throughout the Charlotte Water service area. The diameters of siphon pipes to be cleaned and inspected range from 6-inch to 48-inch and include both single and multi-barrels.  Available siphon information, along with maps and as-builts, are found later in these specifications.  The Company shall verify the sizes and configurations of each siphon and report any discrepancies to the as-builts to Charlotte Water.  Cleaning schedules will vary, as required, and may include the need to perform services during nights, weekends, and/or City observed holidays.

This contract will service the Field Operations Division of Charlotte Water and will primarily focus on the annual cleaning and inspection of approximately fifty (50) inverted siphons throughout the Charlotte Water service area.

 

The Company will be required to clean and inspect all 50+ siphons within the contract time period and will be responsible for scheduling the work.  In addition, the Company will be required to clean and TV at least two (2) gravity lines directly upstream and two (2) gravity lines directly downstream of each siphon.  Diameter of these lines range from 8-inch to 54-inch.