Annapolis Flood Mitigation Update

Maryland's Capital City is a rare example of European town planning in North America. With few changes, the 1695 baroque plan has shaped the urban landscape of our Colonial City, showcasing the natural beauty of the Chesapeake Bay and framing the historic City Dock and its surrounding architectural treasures. The City of Annapolis is working closely with national and state partners like the National Trust for Historic Preservation, the U.S. Army Corps of Engineers, the Maryland Historical Trust, the Maryland Department of Natural Resources, the United States Naval Academy and the Maryland Emergency Management Agency to address the long-term threat of climate change and rising tides.

City Flooding


While we don't know when the next hurricane may strike, we do know that our historic City Dock floods frequently. Scientific studies report that over the past 50 years, tidal flooding has risen from an average of only four nuisance flood days per year to nearly 40. NOAA Technical Report, "Sea Level Rise and Nuisance Flood Frequency Changes around the United States" found that Annapolis has experienced a 925% increase in average annual nuisance flooding events during the past 50 years, the greatest increase recorded for any U.S. city. "Encroaching Tides," a 2014 report from the Union of Concerned Scientists, predicts that Annapolis will experience nearly 200 annual flood days by 2030 and 350 annual flood days by 2040.

Flood Mitigation Project


Tidal flooding has an impact on our City - it weakens our landmark buildings, closes our Dock Street businesses and deters our visitors by preventing access to our historic harbor. That is why the City of Annapolis must develop plans to protect its homes and businesses from the impact of flooding and storm-related disasters. We will begin the flood mitigation project this year for the necessary public infrastructure improvements to address the tidal flooding and to improve the resilience of the downtown area.

The flood mitigation project will include a planning study, conceptual design and construction cost estimates for alternative strategies. The study will include regulatory review, resident and business input, economic impact assessment, and analysis of water quality effects.