Qualla: Neptune's Staircase

Neptune's Staircase: Introduction

Sat, 30 May 2026 00:00:00 GMT

Photo credit aeroid, CC BY-SA 3.0. Before mechanisation, it took a boat half a day to climb Neptune's Staircase. Three lock-keepers worked in tandem, turning capstans by hand, four poles to a capstan, seven full revolutions to open or close each gate. Each lock had four gates. The flight had eight locks. Doing the arithmetic on a stiff morning gave you 126 revolutions to ascend the full sixty-four feet from Loch Linnhe to the canal level above. Today, hydraulic rams do the same work in ninety minutes. The stone walls still rise in eight steps up the hillside at Banavie, just outside Fort William, the longest staircase lock in Britain and one of Thomas Telford's most ambitious feats of civil engineering.

Read more: Neptune's Staircase on Qualla

Image: aeroid | CC BY-SA 3.0

Neptune's Staircase: The Engineer Who Wanted to Stop the Highland Clearances

Sat, 30 May 2026 00:00:00 GMT

Photo credit HaSt, CC BY-SA 4.0. In 1801 the British government asked Thomas Telford to look at ways of slowing the depopulation of the Highlands. His answer was infrastructure. Public works, he argued, would provide employment, support fishing and agriculture, and connect remote settlements to markets. An Act o...

Read more: Neptune's Staircase on Qualla

Image: HaSt | CC BY-SA 4.0

Neptune's Staircase: Eight Locks at Banavie

Sat, 30 May 2026 00:00:00 GMT

Photo credit Val Vannet, CC BY-SA 2.0. Locks could have been spread along the canal individually, but Telford and Jessop concluded that grouping them saved money on land and labour. Banavie became the site for eight locks in a continuous flight, each chamber draining into the next. The locks were sized to handle 32-gu...

Read more: Neptune's Staircase on Qualla

Image: Val Vannet | CC BY-SA 2.0

Neptune's Staircase: Execrable Masonry and Ten Winters of Repair

Sat, 30 May 2026 00:00:00 GMT

Photo credit Ken Crosby, CC BY-SA 2.0. Trouble surfaced almost immediately. The canal closed for two weeks in April 1829 to fix problems at Banavie. In 1837, George May's report on the canal described the Banavie masonry as execrable, suggesting that the contractor had never expected the locks to be used and had conce...

Read more: Neptune's Staircase on Qualla

Image: Ken Crosby | CC BY-SA 2.0

Neptune's Staircase: The Long Climb Today

Sat, 30 May 2026 00:00:00 GMT

Photo credit Bill Henderson, CC BY-SA 2.0. Scottish Canals has run the flight since 2012, accountable now to the Scottish Parliament. Each of the modern gates weighs 22 tons. Three keepers operate the staircase, working on what they call an efficiency basis, batching ascending boats together or descending boats together, ...

Read more: Neptune's Staircase on Qualla

Image: Bill Henderson | CC BY-SA 2.0