Heritage & Culture.
The Merrickville Blockhouse stands at the centre of the Locks 21–23 lockstation greenspace on Mill Street — a two-storey 1832–1833 stone-and-frame fortification, the largest blockhouse Colonel John By built on the Rideau Canal, and the second-largest surviving blockhouse in Canada. It was inscribed as a National Historic Site of Canada on May 29, 1939, and now houses a museum on canal construction and village history.
The brief.
The Blockhouse and the lockstation share the same village block, and the 19th-century stone-and-brick Victorian downtown radiates outward from there along Mill and St. Lawrence streets.
Parks Canada operates the lockstation on the published navigation-season schedule (roughly mid-May through mid-October); the Blockhouse Museum is staffed seasonally. The lockstation greenspace is open year-round for walking.
The Merrickville Ruins, an industrial-era mill site between the canal and the river, sit a 0.5 km loop away. Together the Blockhouse, the three-lock flight (combined 7.4 m lift), the Victorian downtown, and the Ruins form four nationally and internationally inscribed heritage layers concentrated in one walkable village.
4. places.
- 01
Merrickville Blockhouse NHS
1832–1833 two-storey blockhouse at the lockstation on Mill Street; largest blockhouse on the Rideau Canal and second-largest surviving in Canada; designated a National Historic Site on May 29, 1939; houses a museum on canal construction and village history.
Map ↗ - 02
Merrickville Lockstation (Locks 21–23)
Three-lock flight with a combined lift of 7.4 m, built 1830–1832 as part of the 202 km Rideau Canal — a UNESCO World Heritage Site since 2007. Lockstation address 111A Main Street East.
Map ↗ - 03
Merrickville heritage downtown core
19th-century stone-and-brick Victorian commercial and residential buildings preserved as the village heart, accessible from Blockhouse Park along Mill, St. Lawrence, and Brock streets.
Map ↗ - 04
Merrickville Ruins
Industrial-era mill and factory ruins between the canal and the river, accessible from St. Lawrence Street on a 0.5 km loop.
Map ↗
Today's read.
Cool but comfortable for layered effort · light winds.
By the book.
- 01The Rideau Canal lockstation operates on the Parks Canada navigation-season schedule, roughly mid-May through mid-October; locking through requires the navigation fee.Source ↗
- 02Overnight mooring at the lockstation is permitted up to 2 nights, with day-use docking, washrooms, potable water, and shore power available on site.Source ↗