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Lock Co. Leitrim

Tirmactiernan Lock

Lock 15, about a kilometre above Killarcan, where a side channel can run fast after heavy rain.

  • Open now · closes 20:00
  • Smart Card lock

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Lock times

Open now · closes 20:00 Self-operated with a Smart Card

The next seven days
Today – Sat, 31 Oct 09:00–20:00
Sun, 1 Nov 09:00–17:35
Mon, 2 Nov 09:00–17:33
Tue, 3 Nov 09:00–17:31
Wed, 4 Nov 09:00–17:30
Thu, 5 Nov 09:00–17:28

Notice: Self-operated with a Waterways Ireland Smart Card (1 unit a lock) at the console beside the lock. Nearest patrollers listed by Waterways Ireland: Lock 16, +353 87 260 8569, or the Kilclare area, +353 87 260 3663. Lifejackets must be worn at the lock (Marine Notice 35/2026).

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

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Today

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Weather and water

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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 Tirmactiernan Lock

Tirmactiernan is the second lock out of Leitrim, about 1.5 km from the village on the canalised Leitrim River. The water here is normally still, but the Blueway paddling guide warns that the back channel beside lock 15 can run fast when levels are high or after a flash flood, so come in slowly with the boat under control and keep children away from the edge while you tie up. Beyond the lock the cut climbs on through quiet farmland to Drumduff and Newbrook, two locks that come close together. The console works like every other one on the waterway: insert the Smart Card and follow the steps shown on the panel.

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Neighbours by water

Show 3 more
  • Newbrook Lock ≈ 2 km · 1 lock · ≈ 45 min Open now · closes 20:00
  • Lisconor Lock ≈ 2.6 km · 2 locks · ≈ 1 h 15 min Open now · closes 20:00
  • Kilclare ≈ 2.7 km · 3 locks · ≈ 1 h 30 min

≈ distances are computed along the water, not along the marked channel. Times are our estimate: 5 km/h and 20 minutes a lock. Check the Waterways Ireland marine notices

Also nearby, from OpenStreetMap (6)

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

Harbours & marinas from OpenStreetMap — access not checked (1)
Locks & bridges (5)

© OpenStreetMap contributors