Phase 1: South Ramp East (Construction)

This project involves significant airfield civil construction, including approximately 147,400 CY of unclassified excavation, 294,000 CY of embankment placement, and 239,000 SY of pavement removal. Key scopes include erosion and sediment control, installation of storm drainage systems (15″–66″ RCP), over 186,000 SY of PCC airfield paving, 75,500 TN of asphalt, 27,500 LF of electrical conduit, as well as airfield lighting, signage, and pavement markings.

Collective AE Project

6108 Bridlewood Ln will consist of removing an existing CMP pipe and replacing with approx. 31 LF of 9×7 RCBC. A temporary pedestrian bridge will be added to cross the creek during time of construction for the property owners. The scope is also to include approx. 31LF of 15” RCP replacement along with replacement of (1) CB, concrete driveway replacement, curb and gutter and pavement resurfacing. There will also be grading around the existing creek that will tie into (2) new HWs. 6032 Bridlewood Ln will consist of removing an existing CMP pipe and replacing with approx. 30 LF of 9×7 RCBC. A temporary pedestrian bridge will be added to cross the creek during time of construction for the property owners. The scope is also to include concrete driveway replacement, curb and gutter, and pavement resurfacing. There will also be grading around the existing creek that will tie into (2) new HWs.

Surface Water Quality Projects Support

The City has collected water quality data throughout the City limits and ETJ and developed 22 sub-watershed data matrices. Watershed modeling is nearly complete for one watershed, and watershed planning efforts are currently underway for two watersheds. The contracted firm will aid and support current and future watershed modeling and planning efforts.

The awarded firm will provide services for several pond and dam rehabilitation/stormwater control measures (SCM) projects. This will include initial feasibility studies, planning and design for projects that are not specified at this time. Additional tasks will include the evaluation and repair design of existing municipal SCM projects. These projects are anticipated to start scoping upon contract award. The selected firms will use HEC-HMS, HEC-RAS, SWMM, and/or a hydraulic grade line closed system computer model, or an approved alternative method. All methods will be in accordance with the Charlotte-Mecklenburg Storm Water Design Manual. The City’s then current AutoCAD standards will be used for production of all plans and profiles.

 

Centrifuge Repair and Maintenance Service

Company to provide the City Centrifuge Preventive Maintenance, Predictive Maintenance, and Repair Services for 2 (two) Dewatering Centrifuges and 2 (two) Thickening Centrifuges at the Mallard Creek Water Reclamation Facility, Westfalia and Humbolt Dewatering and Humboldt Thickening Centrifuges

FY27 Small Diameter Water and Sewer Services Contract #1

This contract project provides construction and installation of small diameter water and sewer service connections. These service connections are applied and paid for by external customers and installed by the Charlotte Water contractor.

Professional Engineering Services for the Sugar Creek East Equalization Basin, Pump Station, and Forcemain

The East Flow EQ Basin and Grit Facility, constructed in 1997, is located south of the treatment facility along Little Sugar Creek. During high flow events, wastewater flows south by gravity to the Excess Flow Control Chamber via a 54” line. In the Excess Flow Control Chamber, there is a gate that can direct flow to either the McAlpine Creek WWMF or to the Flow EQ Fill Pump Station. With the gate to McAlpine Creek WWMF line closed, wastewater enters the Flow EQ Fill Pump Station and is pumped to the East Fow EQ Basin for storage. Once the storm surge is complete and staff want to empty the East Flow EQ Basin, wastewater can then drain via gravity or Return Flow pumps to the Excess Flow Control Chamber, where it then flows by gravity to McAlpine Creek WWMF.