The Light
What is a lightship?
A lighthouse that floats, it serves the same function such as:
- A light to aid navigation at night
- A horn to warn mariners in fog
- A radio beacon for longer range identification
Lighting the way
The Overfalls main aid to navigation was a 375 mm dual electric lantern located 57 feet above the water line. Rated at 15,000 candle power, (approximately 1,000 watts), it flashed every 3 seconds from dusk until dawn. On a clear night it could be seen for 12 miles.
The ship also had a dual diaphone fog horn with a range of 5 miles that sounded every 30 seconds in foggy weather.
A radio beacon with a range of 25 miles transmitted the call letters of the ship (NMJF) in Morse code. In foggy weather it was synchronized with the horn and broadcast every 30 seconds.
Click here to see Overfalls' full specifications.
Click here to read the about the history of lightships.

We've Made It!
This site tells the story of the eleven-year project to save and preserve one of America’s maritime treasures. It’s a story of tens of thousands of volunteer hours of dirty work bringing one of the few remaining lightships back from the brink of ruin and all of the behind the scenes tasks that made it a reality. It’s a story of community support that maintained the momentum when any rational person would have thrown in the towel. And, it’s how this infectious community support spread farther afield raising the $1.2 million necessary to complete the project,

The Overfalls has two exciting projects underway which, when completed, will result in a great improvement to the grounds and will significantly enhance the Foundation’s ability to meet its mission.
The success of the restoration of the Lightship Overflls would not have been possible without the support of the members who gave generously to make this dream come true. Today the ship is a beautiful home to an exciting new maritime museum featuring glimpses into a vanished era of our maritime history. The future for the ship looks bright as the Foundation continues to add exhibits, activities and events, all of which enhance our ability to tell the lightship sailors' story. Member donations are more important than ever to keep the ship strong and develop all these new programs. Don't delay-It is easy to join or renew membership online by 




