NoticeNot affiliated with the Master Mariners Benevolent Association (MMBA) or any successor organization.v.2026.05
General Overview
Facility 🚤 Full Service Marina Slips 385 Water River Est. Parking
~120 spaces
Lot Size Large (150+) Lot Type Surface (Striped) Access
Entry/Exit Lanes
ConfidenceHigh
Medium-sized marina with numerous slips occupied by boats, adjacent to a large striped asphalt parking lot filled with vehicles along a riverfront road.
inland waterway
Columbia Island Marina
Washington, DC
Columbia Island Marina offers 385 wet slips (annual and seasonal) for motor boats 20-50 ft on the Pentagon Lagoon in Arlington, VA, with fuel, pump-out, restaurant, power, and other amenities.
AddressColumbia Island Marina, Washington, DC, USA
Marinas typically need to separate slip holder parking from day-visitor parking, trailer areas, launch ramps, and secure dock access points. Modern facilities use barrier gate systems to enforce these zones automatically — allowing permitted vehicles through via transponder or keycard while logging all access events.
