Dacorum Daily

Environment

4 Environment Agency flood messages near Dacorum

Original Daily brief from the live flood API. Check Floodline for the official wording.

Dacorum Daily desk · 27 August 2026 · 2 min read

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Marsworth and Startops reservoirs on the Tring summit

The Environment Agency currently has 4 flood messages within 25km of a point in the middle of Dacorum. The desk is publishing an original summary, not the full warning text.

Named catchments on this run: Upper River Colne and Radlett Brook; Lower Lee tributaries; Silk Stream and the Deans, Edgware, Dollis, Mutton, Wembley and Wealdstone Brooks; River Pinn and Woodridings Stream. Some of those watercourses sit over the borough boundary. A watch near London Colney or Edgware is still useful context for anyone driving the A41 or living on the Gade.

If you are on a floodplain, use Floodline 0345 988 1188 and the Environment Agency map. Do not wait for a newspaper to tell you the river has come up.

Filed automatically by the Dacorum Daily desk from official open data. Named reporters still write the longer investigations.

Comments are coming. Until then, write to news@dacorumdaily.co.uk.

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