River flow gauging station on the river Kennet Catchment land useNRFA Leaflet

Gauging station map

Welcome to the National River Flow Archive

The National River Flow Archive (NRFA) is the UK’s focal point for river flow data.

The NRFA collates, quality controls, and archives hydrometric data from gauging station networks across the UK including the extensive networks operated by the Environment Agency (England), Natural Resources Wales, the Scottish Environment Protection Agency  and the Rivers Agency (Northern Ireland).

Search for NRFA data

Find gauging stations, view site/catchment information and download flow data.
NRFA Data Holdings

Discover what data are held by the NRFA.
Peak Flow Data

Explore the *NEW* peak flow data holdings (previously provided by HiFlows-UK).

National Hydrological Monitoring Programme - analysis of hydrological events.

Hydrometric areas dataset for the UK is now available - 18 July 2014

The Hydrometric areas dataset for the United Kingdom is now available via the EIDC Hub. The boundaries between hydrometric areas correspond to catchment boundaries as digitally-derived from CEH Integrated Hydrological Digital Terrain Model (IHDTM) using a catchment definition programme.

The datasets can be accessed here.

UK Hydrological Summary for June 2014 published - 14 July 2014

June was a warm and generally dry month, although convective thunderstorm activity accompanied above average temperatures. The mid-month spell of dry weather triggered steep recessions in river flows across much of the UK. With groundwater levels and reservoir stocks declining but generally remaining above average, the water resources outlook remains healthy for much of the UK.

Further details can be found here.

River flow data for water year 2012/2013 available from NRFA - 11 July 2014

Dee at PolhollickFollowing completion of the annual submission and data quality control programme, river flow data for water year 2012/2013 is now available for the majority of gauging stations on the NRFA. Data from other gauging stations will follow once data validation and processing is complete.

Find a station of interest using our gauging station search page.


NRFA launches new Peak River Flow Data Service to replace HiFlows-UK - 11 April 2014

Flooding on the Thames at Wallingford in January 2014In April 2014, responsibility for the provision of UK national flood peak data was transferred from the former HiFlows-UK initiative hosted on the Environment Agency’s website to the NRFA. Details of the launch of this new NRFA service can be found in this Briefing Note.
Information about how to use the new service can be found here.




Click here for an archive of NRFA news items