United States Coast Guard Auxiliary - Portsmouth Harbor Flotilla

United States Coast Guard Auxiliary - Portsmouth Harbor Flotilla Portsmouth Harbor Flotilla (13-02-08) is the local US Coast Guard Auxiliary unit in the New Hampshire - Maine Seacoast region.

We are based out of USCG Station Portsmouth Harbor in New Castle, New Hampshire, located at the mouth of the Piscataqua River.

One of the U.S. Coast Guard Auxiliary missions is to verify the condition and locations of PATONs, or Private Aids to Na...
08/25/2026

One of the U.S. Coast Guard Auxiliary missions is to verify the condition and locations of PATONs, or Private Aids to Navigation. Here two boat crew members look up information on markers in Portsmouth Harbor. Making sure these important markers are in place is just one way we keep the waters safe for our communities.

If you are local, you know the old General Sullivan bridge over the Piscataqua River is being demolished. What you may n...
08/21/2026

If you are local, you know the old General Sullivan bridge over the Piscataqua River is being demolished. What you may not know is that our boat crew has taken shifts providing a safety patrol on demolition days. Part of our mission is to make sure all of our neighbors are safe on our local waters, no matter what’s happening around them.

Last weekend we provided on the water support during the Nubble Lighthouse Swim. Our boat crew helped to keep the course...
08/12/2026

Last weekend we provided on the water support during the Nubble Lighthouse Swim. Our boat crew helped to keep the course clear and was ready to assist any swimmers in distress.

Happy 236th Birthday to the U.S. Coast Guard We are proud to serve!
08/04/2026

Happy 236th Birthday to the U.S. Coast Guard

We are proud to serve!

Join us tomorrow at Wood Island Life Saving Station Association
07/31/2026

Join us tomorrow at Wood Island Life Saving Station Association

One of the highlights of our time at SailBoston was working alongside the “gold side”, as we call the active duty Coast ...
07/21/2026

One of the highlights of our time at SailBoston was working alongside the “gold side”, as we call the active duty Coast Guard.

During the Parade of Sail we were able to assist USCGC Chadwick on the water. They were kind enough to give their challenge coins to one of our boat crews in exchange.

We are always glad to lend a hand! U.S. Coast Guard Auxiliary

And…that’s a wrap! After five days of patrols in support of our boat crew headed home yesterday. We sailed out of Base...
07/17/2026

And…that’s a wrap! After five days of patrols in support of our boat crew headed home yesterday. We sailed out of Base Boston, up the Massachusetts coast, and back into Portsmouth Harbor. It was our honor to work alongside our active duty Coast Guard teammates during this historic event. U.S. Coast Guard Auxiliary U.S. Coast Guard Sector Boston USCG Northeast

Yesterday our boat crew was back on the water, but they weren’t our only Auxiliarists at work! Auxiliarist Grossi, here ...
07/16/2026

Yesterday our boat crew was back on the water, but they weren’t our only Auxiliarists at work!

Auxiliarist Grossi, here pictured in front of Base Boston (photo two) has served all week as an Auxiliary Culinary specialist. He’s been part of an incredible team working to keep all of the Coast Guard personnel fed through this major event.

Elsewhere Auxiliarists have been serving as radio watchstanders, incident command staff, chaplains, and drivers. had an amazing turnout, and all of these folks were working behind the scene to make sure it was a safe and unforgettable event.

U.S. Coast Guard Auxiliary USCG Northeast

What an incredible day four here at . The highlight for us was helping to es**rt U.S. Coast Guard Cutter Eagle out of B...
07/15/2026

What an incredible day four here at . The highlight for us was helping to es**rt U.S. Coast Guard Cutter Eagle out of Boston Harbor. We are proud to be serving alongside active, reserve, and civilian Coast Guard teammates from all over. USCG Northeast U.S. Coast Guard Sector Boston U.S. Coast Guard Auxiliary

This evening it was our honor to help es**rt U.S. Coast Guard Cutter Eagle out of Boston Harbor. U.S. Coast Guard Au...
07/15/2026

This evening it was our honor to help es**rt U.S. Coast Guard Cutter Eagle out of Boston Harbor. U.S. Coast Guard Auxiliary

Address

25 Wentworth Road
Portsmouth, NH
03854

Telephone

+16038521888

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