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River Mimram in Hertfordshire

The River Mimram at Whitwell, Welwyn, Tewin, Hertingfordbury and Hertford

Flood alert area Mimram Hertfordshire Herts and North London

Map

Nearby Monitoring Stations

Fulling Mill in this area

River Mimram • Welwyn • 2.6 km (downstream)

Steady · normal

Panshanger in this area

River Mimram • Tewin • 4.1 km (downstream)

Steady · normal

Whitwell on the boundary

River Mimram • Whitwell • 8.6 km (upstream)

Steady · normal

Stevenage Brook • Bragbury End • 6.4 km

Steady · normal

River Lee • Birch Green • 7.5 km

Steady · normal

Hertford, Hartham Park

River Beane • Hertford • 8.0 km

Steady · normal

River Beane • Dane End • 10.5 km

Steady · normal

River Lee • Harpenden • 10.8 km

Easing · normal — Easing — down from 0.83 at 17:00, now 0.81

River Rib • Wadesmill • 11.4 km

Steady · normal

Tumbling Bay Weir

Amwell Loop • Ware • 11.7 km

structure gauge

Flood Event History (3)

29 Jan 2025 at 5:28pm Flood Alert

15 Mar 2024 at 3:37pm Flood Alert

7 Feb 2014 at 1:43pm Flood Alert

Related Flood Areas

Official sources for this area

This area on the Environment Agency’s flood service →
Floodline quick dial: 172474 — call 0345 988 1188 and give that code for a recorded update on this area.
Area code: 062WAF47Mimram

Live warnings and area boundaries are the Environment Agency’s and the EA is the authority on them. Contains public sector information licensed under the Open Government Licence v3.0. This area in the EA’s own data.