Overview

Tarmonbarry sits beside a crossing of the River Shannon on the Roscommon–Longford border. The bridge and lock serve navigation, and moorings sit nearby. The village (Irish: Tearmann Bearaigh, ‘Berach’s sanctuary’) straddles the county line: the western bank is County Roscommon, and once you cross the bridge eastward you are in County Longford. Around the crossing sit a marina, a lock gate and a couple of pubs. It is a working river junction more than a destination, which is part of the appeal.
History
Saint Berach (also called Saint Barry) is said to have founded an abbey on the western bank in the 6th century, and a stone shrine to him still stands in the village. Local tradition has the saint turning a large boulder into a boat to cross the river; that boulder is supposed to rest now in Whitehall Church, 2 km north.
For a decade between 1925 and 1935 the village had a stranger claim: hydroplane racing on the Shannon, the boats tearing up and down a stretch of river better known today for slow cruisers and patient anglers.
Notable people
Dr Brigid Lyons Thornton was born nearby at Scramogue. She was active in Cumann na mBan during the 1916 Rising, helped establish the Army Medical Corps, and became the first woman to hold an officer’s commission in the Irish Free State Army, all while practising medicine. Roscommon County Council formally recognised her in 2023.
What to see and do
The bridge and lock gate
The bridge and lock are the landmarks of the village. Check Waterways Ireland’s Shannon navigation information for bridge operations, lock times and any works before you plan a passage. If you are on foot, keep clear of moving gates. Cruisers wait their turn to pass through, and in busy weeks that can take a while, so this is not the place to be in a hurry on a boat.
Marina and mooring
Public mooring berths run along a stone-cut wall at the marina. Use designated moorings only. The wide, calm stretches here suit unhurried cruising and angling.
Angling
The Shannon around Tarmonbarry is known for bream, roach and hybrids. The nearby Camlin River and the Feorish River, 3 km off, add tench and roach. Spring through early summer is traditionally the most productive spell. Check current permissions and any restrictions before you fish.
Royal Canal Greenway
Across the river, Cloondara is a separate access point for the Royal Canal Greenway, a flat towpath for walking and cycling. Use the official trail map and plan the onward leg separately.
Eating and the shrine
Keenan’s Hotel sits by the bridge, and the Shannon Bar and The Lodge are traditional pubs near the water. Opening times and menus change, so check before you go. St Berach’s shrine, the stone marker to the village’s patron, is a short walk from the crossing.
Nearby attractions

- National Famine Museum at Strokestown Park – a short drive west, and a substantial half-day for anyone interested in the Great Famine.
- Slieve Bawn – a hill about 10 km west with walking trails, a recreational park and a wind farm.
- Rathcroghan Visitor Centre – the ancient capital of Connacht, with prehistoric mounds and a scatter of archaeological sites.
Practical information
| Facility | Details |
|---|---|
| Parking | Check signs near the marina and village centre for current parking arrangements. |
| Accommodation | Keenan’s Hotel is by the bridge; check current availability. |
| Accessibility | The village centre and marina are flat, and crossing the bridge on foot is level. |
| Boaters | See the Waterways Ireland boater information for bridge, lock and mooring notices. |
Getting there
Tarmonbarry sits on the N5, about 8 km west of Longford town. The bridge is the county boundary; cross it eastward and you are in County Longford. Longford town has rail links to Dublin and Sligo; check current timetables before you travel.
Seasonal notes
Lock queues are likely to be longest in high summer. Angling is traditionally best from spring into early summer.
Suggested itinerary
Spend the morning by the river watching the boats come through. In the afternoon, visit the Royal Canal Greenway at Cloondara, or drive west to the National Famine Museum at Strokestown Park.