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Cof Cymru: National Historic Assets of Wales · Wales

Stow Hill Railway Tunnel

Stow Hill, Newport, Wales

The record

Designation
Listed building, Grade II
Broad class
Transport
Date of designation
31 March 2000
Community
Stow Hill
Unitary authority
Newport
Country
Wales
Coordinates
51.58275, -3.00444
Cadw reference
23140

Slide toward Today to fade the historical sheet and see the modern map underneath.

David Rumsey Map Collection, Stanford Libraries

Shown on 5 historical map sheets, the earliest the 1636 "Cornubia : Devonia, Somersetus, Dorcestria, Wiltonia, Glocestria ..." (David Rumsey Map Collection, Stanford Libraries).

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This record in Cadw's own full report ↗

Cadw's description

Takes railway line under Stow Hill from a point S of Newport Station, emerging near Llandaff Street.

Bears the date 1848. Engineered by Brunel for the South Wales Railway. The South Wales Railway was, with the Chester & Holyhead Railway along the North Wales Coast, the most important of the early routes into Wales. In the early C20, the line was doubled, and a second tunnel built parallel to this work, on its W side.

The easterly of the 2 tunnels under Stow Hill. This tunnel runs from a point about 450m SW of Newport Station (just N of Windsor Terrace) for around 650m, emerging about 150m NW of Llandaff Street. Both N and S portals consist of round-headed arch of heavily rock-faced voussoirs, showing influence of Italian C16 architecture. Set in walling of coursed rock-faced masonry.

The interior of the tunnel is faced in stone. Repairs in sprayed concrete 1987.

Important early railway structure from grand project of South Wales Railway.

Nearby in the register

Other entries of the same register within about three miles of this one, by straight line.

Designated Historic Asset GIS Data, The Welsh Historic Environment Service (Cadw), 2026-09-07, licensed under the Open Government Licence http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ Cadw, the Welsh Historic Environment Service · Open Government Licence v3.0
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