Bridge over River Monnow approximately 50m south of Allt-Yr-Ynys
Bridge over River Monnow approximately 50m south of Allt-Yr-Ynys, Walterstone, Herefordshire
Listed on the National Heritage List for England. Search over 400,000 listed places
Overview
- Heritage Category:
- Listed Building
- Grade:
- II
- List Entry Number:
- 1078162
- Date first listed:
- 14-Mar-1986
- List Entry Name:
- Bridge over River Monnow approximately 50m south of Allt-Yr-Ynys
- Statutory Address:
- Bridge over River Monnow approximately 50m south of Allt-Yr-Ynys, Walterstone, Herefordshire
Have you got a photo to share?
Join the Missing Pieces Project. We want you to share your photos and memories.
Location
Location of this list entry and nearby places that are also listed. Use our map search to find more listed places.
Use of this mapping is subject to terms and conditions .
This map is for quick reference purposes only and may not be to scale.
What is the National Heritage List for England?
The National Heritage List for England is a unique register of our country's most significant historic buildings and sites. The places on the list are protected by law and most are not open to the public.
The list includes:
 |
Buildings |
 |
Scheduled monuments |
 |
Parks and gardens |
 |
Battlefields |
 |
Shipwrecks |
Images of England Project
- Date:
- 2001-07-27
- Reference:
- IOE01/03809/32
- Rights:
- © Norman Wigg. Source: Historic England Archive
Local Heritage Hub
Unlock and explore hidden histories, aerial photography, and listed buildings and places for every county, district, city and major town across England.
Discover moreOfficial list entry
- Heritage Category:
- Listed Building
- Grade:
- II
- List Entry Number:
- 1078162
- Date first listed:
- 14-Mar-1986
- Date of most recent amendment:
- 20-Feb-2026
- List Entry Name:
- Bridge over River Monnow approximately 50m south of Allt-Yr-Ynys
- Statutory Address 1:
- Bridge over River Monnow approximately 50m south of Allt-Yr-Ynys, Walterstone, Herefordshire
The scope of legal protection for listed buildings
This List entry helps identify the building designated at this address for its special architectural or historic interest.
Unless the List entry states otherwise, it includes both the structure itself and any object or structure fixed to it (whether inside or outside) as well as any object or structure within the curtilage of the building.
For these purposes, to be included within the curtilage of the building, the object or structure must have formed part of the land since before 1st July 1948.
The scope of legal protection for listed buildings
This List entry helps identify the building designated at this address for its special architectural or historic interest.
Unless the List entry states otherwise, it includes both the structure itself and any object or structure fixed to it (whether inside or outside) as well as any object or structure within the curtilage of the building.
For these purposes, to be included within the curtilage of the building, the object or structure must have formed part of the land since before 1st July 1948.
Location
- Statutory Address:
- Bridge over River Monnow approximately 50m south of Allt-Yr-Ynys, Walterstone, Herefordshire
The building or site itself may lie within the boundary of more than one authority.
- District:
- County of Herefordshire (Unitary Authority)
- Parish:
- Walterstone
- National Grid Reference:
- SO3351423346
Summary
An 1843 stone bridge over the River Monnow, altered in 1945.
Reasons for Designation
The bridge over the River Monnow. approximately 50m south of Allt-Yr-Ynys. is listed at Grade II for the following principal reasons:
Architectural interest:
* the bridge is solidly designed and is well made, in a modest and functional style fitting for its rural location.
Historic interest:
* the border between England and Wales falls in the centre of this river crossing, and the bridge illustrates the history of this route connecting market towns either side of the border;
* the changes made over time illustrate how the responsible local authorities have invested in the bridge by rebuilding in stone and adapting it to allow use by heavier motorised vehicles.
History
A bridge over the River Monnow at Allt Yr Ynys on the border between Monmouthshire in Wales and Herefordshire in England is mentioned in ‘An Historical Tour in Monmouthshire’ by William Coxe (1748-1828), published in 1801. This bridge was timber, and likely to date from after the turnpiking of the road in the second half of the C18. By 1809 the timber bridge required renewal, and the work was carried out under John Gethin (1757-1831), Surveyor of the County Bridges for Herefordshire. This would have been the bridge shown on the 1841 tithe map of Walterstone. The 1809 timber bridge was rebuilt in stone in 1843. Plans from 1945 show proposed works to the bridge which reflect its current appearance. Repair work and repointing to the bridge was carried out in March 2021.
Details
An 1843 stone bridge over the River Monnow, altered in 1945.
MATERIALS: sandstone.
DESCRIPTION: rectangular with splayed abutments, orientated with narrow ends roughly to the north and south. The bridge has a large, central span formed of a segmental arch formed of a single course of ashlar blocks flanked by horseshoe shaped flood arches of smaller ashlar blocks. The spandrels between arches and the parapet are in rubble brought to course, with coping stones to the parapets. Both northern abutments are splayed out from the side of the road. There is a circular metal Brecon Beacons National Park plaque bearing that organisation’s flag and logo on the west face of the eastern parapet at the north end of the bridge. A square stone tablet inscribed ‘H.C.C. / 104’ (Herefordshire County Council) on the east side of the west parapet.
Legacy
The contents of this record have been generated from a legacy data system.
- Legacy System number:
- 355414
- Legacy System:
- LBS
Sources
Books and journals
Cross-Rudkin, PSM, Shaw, PT, John Gethin, Surveyor of the County Bridges in Woolhope Naturalists' Field Club transactions, Vol. XLIX Part III, (1999), 404-421
Coxe, William, An Historical Tour in Monmouthshire Volume 2, (1801)
Other
1841 Tithe map of Walterstone, Herefordshire IR29 Tithe Commission and successors: Tithe Apportionments" The National Archives
Herefordshire HER monument no. 42007 MHE1929: Altyrynnys, Herefordshire County Council Bridge 104
Legal
This building is listed under the Planning (Listed Buildings and Conservation Areas) Act 1990 as amended for its special architectural or historic interest.
Map
This map is for quick reference purposes only and may not be to scale. This copy shows the entry on 11-Jun-2026 at 16:30:07.
Download a full scale map (PDF)End of official list entry
All text content is available under the Open Government Licence v3.0 , except where otherwise stated. Any supplied maps are © Crown Copyright [and database rights] 2026 OS AC0000815036 and may not be reproduced without permission.