About Lennox Bridge
Lennox Bridge is a historic single-arch stone bridge located on Mitchells Pass at Glenbrook, at the eastern gateway to the Blue Mountains in New South Wales. Built between 1832 and 1833 by Scottish stonemason David Lennox using convict labour, it is the oldest surviving stone arch bridge on the Australian mainland. The bridge is heritage-listed and set within bushland, accessible via walking tracks that showcase early colonial road engineering and scenic escarpment surroundings.
Visitors guide
Visitors can expect a well-preserved sandstone arch bridge set in natural bushland on the historic Mitchells Pass route. The bridge spans a small gully and is viewed from walking tracks that pass over and around it. The setting includes eucalypt forest, sandstone cuttings, interpretive signage explaining its construction, and views of the Lapstone Hill escarpment. Access is via the Lapstone Zig Zag walking track from Glenbrook, with no vehicle access directly onto the bridge itself.
Key highlights
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Oldest surviving stone arch bridge on the Australian mainland, completed in 1833
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Designed and built by renowned bridge builder David Lennox using convict labour
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Single 6-metre span sandstone arch with original dry-stone construction
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Heritage-listed engineering landmark on the former Great Western Road (Mitchells Pass)