Qualla: Louth Navigation

Louth Navigation: Introduction

Sun, 31 May 2026 00:00:00 GMT

Photo credit BardofL, CC BY 3.0. Most English canals were built to carry coal. The Louth Navigation was built so that a prosperous market town on a low coastal plain could finally talk to the sea. Eleven miles of canalised river, opened in 1770, connecting Louth to Tetney Haven at the mouth of the Humber. Eight locks to descend the gentle Lincolnshire slope. And six of those locks were built in a shape that almost nobody copied: each chamber side was a sequence of four elliptical bays bowed out against the surrounding soil, like the ribs of a half-sunken whale. Engineers since have looked at them and wondered who, exactly, drew the plans.

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Image: BardofL | CC BY 3.0

Louth Navigation: The Town That Wanted to Trade

Sun, 31 May 2026 00:00:00 GMT

Photo credit Richard Croft, CC BY-SA 2.0. By the eighteenth century Louth was a substantial market town, forward-looking and well-run, but stranded inland by a flat coastal plain that made every cart-journey to the sea a slow business. In October 1756 the town corporation hired John Grundy Jr., a respected canal engineer...

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Image: Richard Croft | CC BY-SA 2.0

Louth Navigation: The Strange Locks

Sun, 31 May 2026 00:00:00 GMT

Photo credit Richard Croft, CC BY-SA 2.0. Eight locks lifted boats up the gentle grade from sea to town. Two were built with conventional straight walls. The other six were built differently - the chamber sides made of four elliptical bays, each bay bowed outward against the surrounding soil. Engineers think the design w...

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Image: Richard Croft | CC BY-SA 2.0

Louth Navigation: The Chaplin Problem

Sun, 31 May 2026 00:00:00 GMT

Photo credit SmileyRose, CC BY-SA 3.0. Charles Chaplin was a commissioner of the navigation and held ten shares. In January 1770 he took the first seven-year lease on the canal's tolls. When the lease came up for renewal nobody else wanted it. The commissioners negotiated a new arrangement: in return for funding all r...

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Image: SmileyRose | CC BY-SA 3.0

Louth Navigation: The Railway Buys In

Sun, 31 May 2026 00:00:00 GMT

Photo credit DeFacto, CC BY-SA 4.0. In 1828 a new act of Parliament reduced the tolls and formalised Chaplin's irregular ninety-nine year lease, sixty years after the fact. In 1847 the East Lincolnshire Railway Company bought out the lease, and the Great Northern Railway in turn took control of the East Lincolnshir...

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Image: DeFacto | CC BY-SA 4.0

Louth Navigation: What the Canal Does Now

Sun, 31 May 2026 00:00:00 GMT

Photo credit Stephen Horncastle, CC BY-SA 2.0. The Louth flood of 1920 wrecked the Riverhead area at the town end of the canal, and that was effectively the end. The commissioners asked to be relieved of their obligation to maintain the navigation. In 1924 the canal formally closed. The assets were sold for six thousand two h...

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Image: Stephen Horncastle | CC BY-SA 2.0