Jetty Hop
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The swing span of Portumna Bridge turned open for boats, with a cruiser in the foreground and a small boat waiting beyond.
Photo: JP · CC BY-SA 2.0
© OpenStreetMap contributors

Bridge Co. Galway

Portumna Bridge

Also part of: Middle Shannon & River Suck

The swing bridge at the head of Lough Derg: it opens for boats only at fixed times, so plan your arrival around the timetable.

  • Next opening Sat, 31 Oct at 10:00
  • Public
  • Clearance 1.82 m
  • Not yet checked: berths, shore power, water, pump-out, fuel and price

Desk research, not yet checked on site · Position: © OpenStreetMap contributors · Report a change

Bridge times

Next opening Sat, 31 Oct at 10:00 Opened by a bridge-keeper

Today – Sat, 31 Oct 10:00 · 11:00 · 12:30 · 14:30 · 16:30 · 17:30
Sun, 1 Nov 09:30 · 10:30
Mon, 2 Nov – Thu, 5 Nov 09:30 · 10:30 · 11:30

Notice: Opened by the bridge-keeper at the times shown only: +353 90 974 1011 (Waterways Ireland). Wait at the floating jetties above or below the bridge. About 1.82 m under the closed span at ordinary summer level.

Times are worked out on this device and change with the season: check the notice. Check the Waterways Ireland marine notices

Source of the times · Times checked 23 Oct 2026

Moor here 2

Portumna Bridge waiting jetty, upstream

Public

Floating jetty · open to all boats

Current availability unknown

Report now · Seven-day history

Not yet checked: operator, berths, boat length, shore power, water, pump-out, fuel, price and contact

Position: © OpenStreetMap contributors

About this mooring

Max. stay: For waiting for the bridge; overnight use not confirmed

Floating jetty above the bridge for boats waiting for the next opening.

Report a problem here (power, water, weed, depth)

Anonymous. These reports go privately to our editors and are not shown on the card. To tell other boaters, sign in and use “Report now” or “Report a problem” above. Privacy

Portumna Bridge waiting jetties, downstream

Public

Floating jetty · open to all boats

Current availability unknown

Report now · Seven-day history

Not yet checked: operator, berths, boat length, shore power, water, pump-out, fuel, price and contact

Position: © OpenStreetMap contributors

About this mooring

Max. stay: For waiting for the bridge; overnight use not confirmed

Floating jetties below the bridge, on the lake side, for boats heading north that wait for an opening.

Report a problem here (power, water, weed, depth)

Anonymous. These reports go privately to our editors and are not shown on the card. To tell other boaters, sign in and use “Report now” or “Report a problem” above. Privacy

Mooring limit: 5 days in a row, 7 days a month

Public moorings on the Shannon Navigation and the Shannon–Erne Waterway: at the same public harbour for at most 5 days in a row, or 7 days in total in any month, all year round. A longer stay in winter (1 November to 31 March) needs a winter mooring from Waterways Ireland. Boater information from Waterways Ireland

Today

Forecast, warnings and water levels

Weather and water

Loading the latest conditions…

In an emergency 112 999

Call 112 or 999 and ask for the Coast Guard. Both numbers work in Ireland and in Northern Ireland.

About Portumna Bridge

Portumna Bridge carries the N65 across the Shannon about 1.5 km above the point where the river opens into Lough Derg, joining Co. Galway to Co. Tipperary. The present bridge was finished in 1911 and has a swing span over the navigation channel, which is opened only at set times. From 1 April to 30 September there are seven openings from Monday to Saturday, between 10:00 and 18:30, and six on Sundays; the timetable is a little shorter from mid-March and through October, and in winter there are only two or three openings each morning. Floating jetties above and below the bridge give you somewhere to wait, and the closed span leaves only 1.82 m at ordinary summer level (Waterways Ireland, March 2025), so most cruisers wait for an opening. The bridge can be phoned on +353 90 974 1011, and Waterways Ireland's marine notices list any changes.

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Neighbours by water

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≈ distances are computed along the water, not along the marked channel. Times are our estimate: 7.5 km/h and 15 minutes a lock. Check the Waterways Ireland marine notices

Also nearby, from OpenStreetMap (10)

Not checked by us. Tap a group to open it. © OpenStreetMap contributors

Food & drink (2)
Things to do (2)
Services (4)
Harbours & marinas from OpenStreetMap — access not checked (2)

© OpenStreetMap contributors