The following is a general description of the Scopes of Service included in this RFQ. The selected firms will use HEC-HMS, HEC-RAS, and/or a hydraulic grade line closed system computer model, or an approved alternative (SWMM) 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.
Work will be issued via written Task Orders, which will specify the requirements of the various projects. Multiple Task Orders may be issued for each project. Multiple Task Orders may be issued at once. The City of Charlotte reserves the right, upon successful completion of a given Task Order, to issue subsequent Task Orders to the same or a different Company.
The below list provides a general list of the tasks required. Task orders may include any of the following:
- Surveying, utility locating, and PACP stormwater asset inspections.
- Existing and Proposed Conditions Analyses
- Channel Stabilization and/or Restoration
- Utility Coordination
- Easement/Plat Preparation
- Public Engagement
- Preliminary and final design
- Permitting/Encroachments
(404/401, NCDOT, Railroad Agencies and FEMA Floodplain Development Permitting)
- Preparation of Construction Documents (Plans, Specifications, and Cost Estimates)
- Bid and Construction Phase Services
- Geotechnical and Structural Engineering Services
The city anticipates selecting multiple firms to provide these services. These will be drainage area-based storm drainage improvement projects that involve differing land uses within the project areas. Drainage basins may include closed and open systems. The study areas may be on a portion of the watershed or the entire watershed. Task orders may be issued for multiple projects at once. Upon satisfactorily completing a task order, the City may issue additional task orders. Scoping on these projects is anticipated to begin in early 2026.
The Gleneagles Project is primarily focused on replacing an existing CMP culvert near 3810 Gleneagles Road. The existing culvert is 8.7’ high by 7.8’ wide and is being replaced with a 10’ wide and 7’ tall RCBC. The culvert replacement is occurring to address aging infrastructure and to improve the reliability of infrastructure for the traveling public. In support of this culvert replacement, we are dredging the downstream pond which is located on the Quail Hollow Country Club near the 15th hole. The dredging will remove sediment that has built up near the downstream end of the existing culvert and prevent sediment transport downstream which would negatively impact existing ponds and habitats. In addition, we will be adding inlets and upgrading roadside drainage on Out-Of-Bounds Drive which has significant spread in larger storm events from road drainage. The work on Out-Of-Bounds Drive will increase the safety of the traveling public using that roadway during rain events.
There is an existing wetlands system and stream adjacent to the Bruns Academy that are in need of improvements. The intent of this project is to reset an existing wetlands system to its original design and provide enhancement, where applicable. Wetland restoration efforts will include regrading, sodding and planting of vegetation, installation of a new pedestrian bridge and retaining wall. Additionally, stream improvements, such as regrading banks and adding riffles, are proposed. The proposed improvements will enhance the overall performance of the system for conveying and treating stormwater.
The Hastings/Princeton Storm Drainage Improvement Project will reduce street and structure flooding throughout the neighborhood. Located within a drainage area of approximately 80 acres, the project will replace aging infrastructure and provide adequate system capacity. The project area is bordered by Wellesley Avenue to the north, Hastings Drive to the south, Selwyn Avenue to the east and Jamestown Drive to the west.
Old Plank portion of project: Project initiated due to failure of 84” CMP system on Old Plank Rd. City plans to remove and replace 86” CMP with 56LF 8’x7’ RCBC; Add (2) concrete wingwalls;
Caldwell Williams portion of project: Project initiated due to road flooding. City plans to replace (2) 60” CMP pipes with 39 LF of 13×5 Box culvert. City also intends to add 40LF of 18” RCP; (2) Double catch basins and (2) concrete wingwalls; Pavement and curb replacement.
Project initiated to permanently fix what was an old AFT project. City intends to replace the existing 12’x8’ CMP and replace with approx. 50 LF of 10×8 RCBC; Add (2) concrete wingwalls; (4) CBs; (1) JB; Asphalt and curb replacement; Tie existing sewer crossing into a separate system (2) SSMH’s and approx 30 LF of 8” DIP; 15 LF 15” PVC
Project initiated due to failure of 96” system. City plans to remove and replace 96” CMP with 62LF 9’x6’ RCBC; Add (2) concrete wingwalls; Add (1) DCB CLDS 20.03; Add (1) CLDS 20.05; Add (2) NCDOT 840.01 CB’s; City plans to add approx. 87 LF of 15” RCP; Curb and gutter replacement; pavement resurfacing.
Project initiated to address a failing 48” CMP culvert. The culvert crosses a high hazard dam with deficiency’s that will be addressed by a private HOA. The city intends to install approx. 80LF of 48” RCP and tie into an existing concrete flume; remove and replace approx. 40LF of 15” RCP; add (1) DCB; add (2) CBs; add (1) winged headwall
The project is bounded by Pondella Drive to the West and North, Georgetown Drive to the South and Rosada Ave to the East. The project involves storm drainage improvements along Georgetown Rd primarily with some improvements in intersections with Rosada Avenue and Pondella Drive.
