Flooding & Drainage

Flooding is the number 1 natural disaster is our country. Learn more about what the City is doing to help improve flooding and drainage issues and how you can be flood smart and what you can do to help protect your property.

Page updated on Nov 8, 2018 at 9:54 AM

How Do You Protect Your Home?

Determine Your Flood Risk

Whether you live in a high, moderate or low risk area, everyone is at risk of flooding.  Approximately 20% of the City is mapped by FEMA in a floodplain.  Please visit the Flood Map page for more information on the FEMA flood maps.  The City of Alexandria offers notification services—eNews—that sends you a text or email in the event of a major flood. To sign up, visit www.alexandriava.gov/eNews

Purchase Flood Insurance

Remember, most homeowners insurance does not cover floods.  Everyone can buy flood insurance through the National Flood Insurance Program (NFIP), even if you don’t live in a FEMA floodplain.  Alexandria participates in the NFIP’s Community Rating System program.  As a Class 6 community, Alexandria residents are eligible to receive up to a 20% discount on flood insurance premiums. 

Make a Flood Plan

Know evacuation routes and keep important papers in a safe, waterproof place.  Please visit the Flooding Information page to learn more about to protect your home during flood events.


Help Prevent Local Flooding

You can help prevent local flooding by keeping trash and other debris, like tree branches, away from storm drains and inlets.  Please visit the Waterfront Plan Implementation page for more information on flood mitigation projects along the waterfront.  


Vegetation Removal on Four Mile Run Levee

Four Mile Run LeveeThe City of Alexandria must maintain the structural integrity and the flow capacity of Four Mile Run channel through routine maintenance practices.  Associated with the channel is a levee and floodwall system that was construction back in the 1970’s to mitigate flooding. 

Beginning the week of November 12, 2018, Transportation and Environmental Services will be removing vegetation along the Four Mile Run levee from the I-395 bridge to just downstream of the Mt. Vernon Avenue bridge at Four Mile Run Park. This work, which involves removing and cutting vegetation flush to the levee, is part of the maintenance of the levee. The City has contracted with The Care of Trees to perform this work on the City’s behalf. The work will include the use of a wood chipper and it is anticipated that the work will continue to mid-January. Typical hours of operation are from 7 am to 6 pm, Monday through Friday. For safety, the public is advised to please stay clear of crews while this work is being completed.


City Flooding and Drainage Projects

The City identifies flooding and drainage projects through resident complaints, analyses, and field observations.  Below is a partial list of those identified projects to mitigate drainage issues in problem areas.  The City is currently creating a proactive, methodical approach to prioritizing these types of projects, and will update the below list of projects as others are identified and options considered.

Carlisle Drive Alley
Founders Park
Key Drive Unnamed Tributary channel wall
Lloyd’s Lane
Loyola Street
Oakland Terr. Timber Branch channel wall
Saylor Place
W. Alexandria Alley


Be Flood Smart

Flooding is the nation’s #1 natural disaster and it can happen anytime...anywhere.  Floods occur in all 50 states and you can be a victim of flooding, even if you live miles away from water.   Learn more on what causes flooding and how to protect your home.



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