Gauging Weir, Dunnywater, Annalong, Newry, Co Down is a Grade B2 listed building in the Newry, Mourne and Down local planning authority area, Northern Ireland. First listed on 11 April 2008. Gaurging weir and house.
Gauging Weir, Dunnywater, Annalong, Newry, Co Down
- WRENN ID
- guardian-truss-smoke
- Grade
- B2
- Local Planning Authority
- Newry, Mourne and Down
- Constituency
- South Down MP: Chris Hazzard (SF)
- Country
- Northern Ireland
- Date first listed
- 11 April 2008
- Type
- Gaurging weir and house
- Irish grid reference
- J 348 231
- Coordinates
- 54.14014, -5.93758
- Source
- NI Environment Agency listing
Description
The Gauging Weir and associated gauging station, located near Dunnywater in Annalong, Newry, Co Down, were constructed between 1880 and 1899 as part of the initial phase of the Mourne Scheme, designed to supply Belfast with water. The structures have group value in their association with a nearby well house and intercepting weir.
The weir itself is a dressed-granite structure across the river, diverting water into the gauging station situated on the left bank. It consists of granite blocks laid in regular courses with a metal plate across the cill. A flight of granite steps provides access to the gauging station from the road. The station is a one-storey, single-bay building with a flat concrete roof and cement-rendered walls. The walls feature stepped rusticated quoins and finely dressed door and window surrounds.
The gauging station was built by the Belfast Water Commissioners. It predates the construction, around 1900, of the Annalong Weir downstream (HB16/01/052), which diverted water into the Annalong – Belfast conduit and was opened in 1901. The gauging weir and station remain in use and are of industrial archaeological interest. The listing encompasses both the gauging weir and the gauging station.
Local climate
Gauging Weir, Dunnywater, Annalong, Newry, Co Down sits in one of the wettest parts of the UK, with an average of 1,210 mm of rain a year. This makes it wetter than 91% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 98% of listed buildings.
It experiences an average of 2 freeze-thaw cycles a year, fewer than 99% of listed buildings. Of these, 1 follows at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.2°C per decade since 1991.
Averages for 1991–2020; temperature trend 1991–2025. Figures describe the wider area (a grid cell of roughly 10 km), not the individual site. Contains modified Copernicus Climate Change Service information 2026.
More on this building
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- No EPC on record for this property
- No sale records on file
- No related consent applications matched
- Detailed attributes — period, style, materials, features
- No flood data for this area
- Radon risk assessment
- Weather exposure and heating demand — rain and frost month by month and year by year, wind direction, solar and humidity
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