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 (formally provided by HiFlows-UK).

National Hydrological Monitoring Programme - analysis of hydrological events.

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.



UK Hydrological Summary for March 2014 published - 11 April 2014

After a tempestuous winter, weather patterns in March were more typical of a normal early spring. It was a notably mild month and rainfall totals were in the normal range at the national scale but generally below average across southern Britain and particularly dry in some eastern areas.

Further details can be found here.

Click here for an archive of NRFA news items