- Type
- Harbour
Full-service marina inside the mouth of Seneca Creek at Middle River, with direct access to the upper Chesapeake Bay, Maryland.
Guide
Approach and anchoring
Lies just inside the mouth of Seneca Creek. From here a day's cruise reaches the C&D Canal and Susquehanna River to the north, or Crisfield on the Eastern Shore to the south.
Practical
80 floating berths plus 5 lift slips, with 30 to 50 amp shore power and water. Fuel berth, heads and showers, shaded picnic areas with tables and grills, and an in-ground swimming pool. The boatyard handles re-powers, repairs, parts and propellers.
History
The Porter family has run the marina since 1979, specialising in work on Mercury and MerCruiser engines.
Key facts
- Type
- Harbour
- Coordinates
- 39.32038, -76.37218 (39°19.22'N 76°22.33'W)
- Town
- Middle River
- Country
- United States
- Phone
- +14103356563
- Updated
- July 7, 2026
Getting there
Porter's Seneca Marina lies at 39°19.22'N 76°22.33'W, that is 39.32038, -76.37218 in decimal degrees.
Boaters' reviews
No reviews yet. Be the first to share your experience of Porter's Seneca Marina.
Write a reviewExplore the region
- United States
- Chesapeake Bay
- New England
- Carolinas and Georgia
- Florida
- Great Lakes
- California
- Pacific Northwest
- Alaska
Nearby cities
The free boat navigation app
Official nautical charts, marine weather, GPS and 50,000+ marinas and anchorages with reviews. All in one app, ready to sail.


