Foundry Branch
Potomac River
Past nights from AIS in Jul 2024–Oct 2025
Where boats stayed: 38.904° N, 77.075° W
13nights
9boats
Nights by wind direction
| From | Nights | Boats | Wind 20 kt+ | Windiest night (area) |
|---|---|---|---|---|
| N | 1 | 1–2 | – | 3.4 ktgusts 6 kt |
| SE | 2 | 4 | – | 7.3 ktgusts 14.9 kt |
| S | 2 | 4 | – | 6.4 ktgusts 10 kt |
| SW | 3 | 4 | – | 7.8 ktgusts 13.8 kt |
| NW | 5 | 5 | – | 9.4 ktgusts 16.8 kt |
Nearby anchorages
- Anchorage off Theodore Roosevelt Island, Potomac River1 night
- Windy Run, Potomac River28 nights
- Anchorage off Fishing Shore, Potomac River3 nights
- Anchorage in Little River, Little Island2 nights
- Fletchers Cove1 night
- Boundary Channel2 nights
- Anchorage in Washington Channel2 nights
- Washington Channel, Gravelly Point33 nights
AIS shows only boats that carry it and that a receiver hears, so no boats on AIS never means an anchorage is empty or unsuitable. Boats that live here (at their own berth or mooring, or a week or more in one place) are left out, and boats in marinas and at piers are counted apart from the anchorage's nights. Not for navigation.