Storm Drainage Improvement Project Phases

Charlotte Storm Water Services maintains and improves the public storm drainage system. There are hundreds of active projects underway throughout the City of Charlotte.

Storm drainage improvement projects typically consist of the following five phases plus a warranty period. Public involvement is emphasized throughout the process.


Survey crews document the existing drainage system and surrounding areas. The project team uses this information, along with other data and resident reported drainage concerns to evaluate the existing system.


The project team develops detailed design plans for proposed drainage system improvements. The plans include pipe sizes and alignments, stream or drainage ditch widths, and utility relocations. Additionally, any required federal or state permits are secured.

Easement Acquisition


A competitive bidding process is held to select a qualified contractor to construct the project. By state law, the lowest responsive, responsible bidder is selected, and Charlotte City Council is asked to award the contract.


Residents, business owners and other stakeholders in the project area are notified when construction is expected to begin and end. Once construction is underway, the main point of contact is Storm Water Services’ construction inspector.


All materials and workmanship is guaranteed by the contractor for one year after the project is accepted. Storm Water Services’ construction inspector conducts 6- and 11-month inspections during the warranty period. Upon notification, the contractor will return to the site to make repairs at no additional cost.