Builders from Richmond have restored an important 19th Century industrial site in the Yorkshire Dales National Park.

The work means the Grade II-listed Smardale Gill limekilns, near Kirkby Stephen, can be removed from Historic England’s Heritage at Risk register.

The kilns had been one of ten scheduled monuments and 74 listed buildings in the National Park to be classed as "at risk".

Darlington and Stockton Times: The top of Smardale lime kilns after 2023 repair Picture: David Johnson.

Major repair work was carried out between May and October this year by contractors Staley Stonework of Richmond, following structural surveys completed by Mason Clark Associates of York. The project was led by the Yorkshire Dales National Park Authority, as part of the Westmorland Dales Landscape Partnership Scheme funded by the National Lottery Heritage Fund.

The restoration of the kilns is described as a ‘significant achievement’ in a progress report on the National Park Authority’s annual work programme, and was also celebrated earlier this month at the Dales Archaeology Day 2023, held in Middleham. Senior Historic environment officer Sarah Whiteley and an expert on lime kilns, David Johnson, who did the archaeological monitoring of the repair work on site, each gave presentations.

Darlington and Stockton Times: The front of Smardale limekilns, measuring ten metres high and 18 metres wide, following the repairs

Mr Johnson told the conference: “It is a very good example of an industrial scale lime kiln and it’s by a very prominent footpath in a national nature reserve, so it was worth saving. It was in a heck of a mess but now I think it looks absolutely splendid.”

He paid tribute to stonemason Richard Staley, in particular for creating a bespoke device which was used to facilitate the injection of 30 tonnes of mortar into the rubble layer between the inner and outer walls of the kilns, to stabilise the structure.

Darlington and Stockton Times: Richard Staley of Staley Stonework created a bespoke device which was used to facilitate the injection of 30 tonnes of mortar into the rubble layer between the inner and outer walls of the kilns, to stabilise the structure

Other work involved clearing turf from the kiln tops, removing loose stone from the firing bowls, replacing badly degraded stonework, and re-pointing throughout.

Sarah Whiteley told the Dales Archaeology Day conference: “The kilns were built in the mid-19th Century and appear on the 1857 first edition Ordnance Survey map of the area. They were built initially for the production of lime used in the construction of Smardale Gill viaduct, then in the production of lime for steel making in Barrow and Darlington. They are part of a wider complex of industrial features here, which includes quarries, railway sidings, an incline plane tramway and engine house, representing what was formerly a major commercial lime producing operation.

“Hopefully we have maintained the significance of the kilns by doing this work, and have increased understanding of the monument.”