Boats docked at Columbia Island Marina

Columbia Island Marina

Welcome To Your New Dock

Columbia Island Marina on the Potomac River has a home for your powerboat. We provide services for boaters seeking year-round slips as well as for those looking for the perfect place to enter the Potomac for fishing or cruising by the monuments.

Conveniently located in the beautiful Lyndon B. Johnson Memorial Grove on the Pentagon Lagoon on the Virginia side of the river, the marina is just one and a half miles north of Ronald Reagan Washington National Airport on the George Washington Memorial Parkway in metropolitan Washington, DC.



Columbia Island Marina Boat Storage Waitlist Request Form

Boat Storage Waitlist Request Form

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Columbia Island Marina provides 385 wet slips on the Pentagon Lagoon for motor boats ranging from 20-50 feet.

The annual contract term is April 1st to March 31st of the following year. Annual slips are deluxe and range from 20-50 feet. They come equipped with 30/50 amp outlets on personal pedestals, personal water outlets (hoses not provided), and personal dock boxes (locks not provided).

The seasonal contract term is April 1st to October 31st. Seasonal slips are non-deluxe and 20 feet in length. They do not include utilities. There are public water hoses available on the seasonal docks, but no dock boxes.

Payment is collected in full prior to the boating season. Please note that we charge by the overall length of the vessel if the boat extends beyond the length of the slip.
2017 Seasonal Slip Rates

Length Annual Total
*20 $1,743.00
*21 $1,835.15
*22 $1,917.30
23 $2,004.45
24 $2,091.60
25 $2,178.75

2017 Annual Slip Rates

Length Annual Total
20 $3,348.00
24 $4,017.60
30 $5,022.00
35 $5,859.00
40 $6,696.00
50 $8,370.00

NOTE: no Wi-Fi at this time

*This price is for a seasonal slip. Available April 1st to October 31st.
No utilities available (share water and power, no dock boxes).
All annual slips include water and electric.

Transient Slips Available
We have 4 transient slips that can accommodate boats from 20 to 50 feet in length. The rate is $2 per foot per day with a $25.00 minimum.

Transient Reservation Form

Power For Transient Slips
$7 per day per 30 Amp cord, and $12 per day per 50 Amp cord (includes power and water, no dock boxes).

NOTE: no Wi-Fi at this time

*This price is for a seasonal slip. Available April 1st to October 31st.
No utilities available (share water and power, no dock boxes).
All annual slips include water and electric.

Registration / Slip
If you wish to dock at Columbia Island Marina, we are located in/on DC Waters. This means that if your vessel is docked here, it is to be registered in DC regardless of your residence. Please familiarize yourself with the process of registering your vessel.

Documented Vessels
Documented vessels have are to be registered in DC. When your vessel is documented, you do not have to pay the title tax. Vessels that are not documented, have to pay title taxes. Vessels could be documented over 25 ft.

Harbor Legal Requirements
If you are ticketed, the first ticket is a warning, the second one is a citation as well as impoundment fees.

For questions about transients or slip application inquiry, please email [email protected].