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Twin slipways is a modern slipway situated in Belfast, Northern Ireland, and protected as a scheduled monument by the Historic Environment Division under reference 6274. The structure represents industrial maritime infrastructure typical of Belfast's development as a shipbuilding centre during the nineteenth and twentieth centuries. The monument occupies a location in the city where the underlying geology comprises the Sherwood Sandstone Group, formed during the Ladinian period, a sequence dominated by sandstone, siltstone and mudstone that provides the bedrock foundation across much of the surrounding area.
The twin slipways exemplify the engineering solutions required to support Belfast's industrial waterfront operations. Such structures were essential for the construction, maintenance and launching of vessels, and reflect the city's significant maritime heritage and economic importance during periods of intensive shipbuilding activity. The design and scale of the facility would have accommodated the demands of contemporary industrial production.
The monument's designation recognises its historical significance as physical evidence of Belfast's industrial past and its role within the broader context of maritime manufacturing in Northern Ireland. The protection of the site ensures that this element of the city's built heritage and industrial archaeology is preserved for future study and understanding of nineteenth and twentieth-century shipbuilding practices and infrastructure.
Twin slipways, ihr no. 10486 is a scheduled monument protected by Department for Communities NI under reference 6274. View the official record →
Twin slipways is a modern slipway situated in Belfast, Northern Ireland, and protected as a scheduled monument by the Historic Environment Division under reference 6274.
Twin slipways, ihr no. 10486 dates from the modern period, and is classified as a slipway. It is one of over 32,000 scheduled monuments protected across the UK.
Twin slipways, ihr no. 10486 is a Scheduled Ancient Monument, legally protected by DfC Northern Ireland (NISMR) — the body responsible for designating and safeguarding heritage sites in Ni. The official designation reference is 6274.
Several scheduled monuments lie within 10 km, including Brick chimney stack (ihr no.10149) (3.4 km), Chimney stack - ihr 01046 (3.7 km), Cranmore house. 17th century house (5.1 km).
This page is just one thread. A full Aubrey report pulls together 14 strands of Twin slipways, ihr no. 10486's history, each drawn from the record and mapped to the exact spot:
Every location is different. Not every section appears for every place, only what the historical record actually holds turns up in a report.
Twin slipways, ihr no. 10486 stands on Sherwood Sandstone Group, bedrock that formed in the Ladinian. The rock here is sandstone, siltstone and mudstone.