Concrete corrosion is a gradual but serious issue that affects the structural integrity of many parking decks. When water infiltrates a porous concrete surface, it penetrates to the embedded reinforcing steel. Over time, this causes the steel to corrode and expand, breaking the concrete on the surface, and exposing the steel underneath. Left unrepaired, this could compromise the integrity of the structure over time. Corrosion-related repairs are among the most common and costly maintenance issues for aging parking decks.

The City of Columbia’s Parking Revitalization Plan is a proactive effort to extend the life of vital downtown infrastructure and ensure a safe, modern parking experience. By addressing issues before they become critical, the City is investing in public safety, saving long-term costs, and supporting the ongoing vibrancy of downtown Columbia.

To minimize disruptions for downtown employees, residents, and visitors, parking deck renovations will be completed one at a time. Work will begin with the Washington Street Parking Deck and is estimated to take approximately three months.

Signage will be placed at each parking deck before and during the construction process to inform parkers of the work taking place and guide them to nearby alternative parking options.

Parking Services has already reached out directly to reserved parkers as related to the coordination of parking arrangements and minimize disruption. The City appreciates the community’s patience as these upgrades are made to improve the overall parking experience in downtown Columbia.