Deale-Shady Side Peninsula Flood Risk Reduction Study

Anne Arundel County, in partnership with BayLand Consultants & Designers and the Resilience Authority of Annapolis and Anne Arundel County, developed a Feasibility Study to assess impacts and mitigation strategies relating to sea level rise along the Deale-Shady Side Peninsula.

Project Purpose

The Deale-Shady Side Peninsula Flood Risk Reduction Feasibility Study, published September 8th, 2025, determines cost-effective, feasible mitigation strategies that enhance resilience of the Peninsula in the face of increasing flood inundation levels and storm event intensities/frequencies associated with a changing climate. The primary deliverable includes a comprehensive adaptation report that includes a menu of preferred, cost-effective, and feasible mitigation projects that will reduce risks to people and properties within the benefitting area. Preferred projects were determined based on vulnerability to the threats of compound flooding. Various desktop analyses, storm water and coastal modeling, and input from the community on climate related concerns were all used to prioritize areas for mitigation strategy implementation.

 

Project Documents

Access the final report and appendices below:

On July 22nd, 2025, the Bureau of Watershed Protection & Restoration, Office of Emergency Management, Office of Planning & Zoning, Resilience Authority of Annapolis and Anne Arundel County, and BayLand Consultants & Designers hosted a Public Meeting previewing the upcoming report for the Deale-Shady Side Flood Risk Reduction Study. View the slides here!

 

Frequently Asked Questions

This report explains how the Deale-Shady Side Peninsula is vulnerable to flooding. It highlights the areas most at risk, suggests possible solutions, and outlines a plan for putting those ideas into action.

Each community on the Peninsula has a “flood report card” that shows how things like sea level rise, drainage issues, and erosion affect local flooding. These report cards help identify the biggest challenges and where opportunities for improvement exist. See Table 10 in the report for more details.

These are ideas for how flooding might be reduced in different areas like raising roads, fixing drainage systems, or adding natural protections. Each idea includes who it helps, how hard it might be to do, how much it could cost, and how long it might take. You can find them in Table 29 of the report.

Residents, NGOs, and government agencies can use this Report as a road map for future planning and implementation to improve the resiliency of the Peninsula.

The report discusses various funding mechanisms in the context of the Case Studies, but makes no funding obligations for any specific project. Many future projects will rely on partnerships between the County, the Resilience Authority, local nonprofits, and community members like you. There are lots of potential funding sources, including grants, small community mini-grants, low-interest loans, and even tax credits. Some of these require teaming up with a nonprofit or government agency, and many also need neighbors to pitch in together. 

Property value evaluation and modeling was not in the scope of this report. This report is not to be used to inform any property value assessment. The vulnerability analysis conducted was solely to inform and prioritize mitigation strategies, based on the best available models.

This is specific to the community and the issue at hand. The Project Concept sheets do have a qualitative urgency metric which is located near the bottom right corner of each card.

Great! If you’d like to see a project happen in your neighborhood, or even on your own property, there are a few ways to get started. No matter where you start, you’ll likely need to team up with neighbors, a nonprofit, or local government to move a project forward.

The Watershed Stewards Academy offers free online resources to help you manage stormwater on your property. You can also schedule a free Residential Site Assessment with a trained Watershed Steward. Plus, you may qualify for two tax credits if you install and maintain stormwater solutions like rain barrels, rain gardens, or living shorelines (Stormwater Management Property Tax Credit and the Watershed Protection & Restoration Fee Credit).

You’re encouraged to contact the Anne Arundel County Office of Emergency Management at oemoutreach@aacounty.org or 410-222-0600 to discuss emergency planning for you and/or your community.

 

Questions about the Report?

For questions or comments relating to this project, please contact either the Anne Arundel County Department of Public Works at pwcust00@aacounty.org or 410-222-7500 or the Resilience Authority of Annapolis and Anne Arundel County at resilienceauthority@aacounty.org.

 

Surveys and Flood Reporting

 

The Deale-Shady Side Peninsula

The Deale-Shady Side Peninsula is the southeastern portion of the county along the Chesapeake Bay. The area includes all of Shady Side and Churchton along with parts of West River and Deale.

 

Project Background

The Shady Side Peninsula is the southeastern portion of the county along the Chesapeake Bay. The area includes all of Shady Side and Churchton along with parts of West River and Deale.

The proposed area of interest is an approximately 13 square mile peninsula was specifically called out as a high-risk area for flooding in the County’s 2018 Hazard Mitigation Plan. The mean elevation within the benefitting area is 7.68 feet above sea level and is fragmented by creeks and wetlands. The primary risk to residents and businesses within the benefitting area is life safety and property damages resulting from acute flooding. However, over time, floodwaters are expected to persist longer and threaten transportation between communities and essential community lifeline services.

On May 3, 2021, the Anne Arundel County Council adopted a set of climate change and sea level rise policies in the latest update of the County-wide General Development Plan, Plan2040. This project supports those efforts to incorporate considerations of vulnerability to sea level rise, coastal flooding, and nuisance flooding into community development plans. Concepts from various state and county sea level rise and mitigation plans will be integrated into the plan update for a consistent, data- driven approach to reduce sea level rise impacts to property, infrastructure, and cultural resources.

In 2023, Anne Arundel County conducted a study of risks related to sea level rise based on the latest projections from federal and State agencies and university researchers. The study assessed risks across the entire County and included a more detailed analysis of the Deale-Shady Side Peninsula. Please see the Office of Planning & Zoning's Sea Level Rise webpage for an overview of the findings of risk assessment and the full report.