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Bullow Brook

A stream near Wembworthy, Devon. No gauge of its own: what the river map and the banked data say about it.

Bullow Brook is a stream on Ordnance Survey’s river map near Wembworthy, Devon, with about 3.2 km of mapped channel. On the map it flows into the River Taw and out to the sea.

Next gauge downstream

Newnham Bridge on the River Taw, about 21 km along the river below where Bullow Brook ends on the map.

0.24 m Normal · rising slightly 32 min ago

After that, Umberleigh, about 34 km along the river.

No gauge measures Bullow Brook itself. A gauge downstream shows water that has already passed it, mixed with everything else that has joined on the way, so it says nothing exact about this stream.

Water-sampling points on Bullow Brook

2 Environment Agency sampling points are placed on this stream. These are dated samples taken by hand, not live readings, and FloodRadar does not grade them.

Bullow Brook at Bullowbrook Bridge
Last sampled 2 Sep 2026 · 29 days ago · 6 samples banked
Bullow Brook at Gray's Bridge
No sample published 1 Oct 2023 – 30 Sep 2026

A sample is taken on a date; it says nothing about the water today. A sample below an overflow does not by itself show where anything in it came from.

Water samples: Environment Agency Water Quality Archive, © Environment Agency and/or database right 2026, Open Government Licence v3.0.

On the map

The map needs JavaScript. Everything it shows is listed on this page.

The blue line is Bullow Brook; grey lines are other mapped watercourses. Lines from OS Open Rivers (edition 2026-04).

The River Taw, the river it joins →EX18 7SL, a postcode page near where it ends on the map (about 550 m away) →All rivers with gauges →

What this page can and cannot tell you

Its line, its name and where it flows come from Ordnance Survey’s river map (OS Open Rivers, edition 2026-04), which leaves out many small streams, ditches and culverts. “Flows into” is the map’s word: a channel that is not on the map is not shown here, which does not mean it is not there.
No gauge measures Bullow Brook itself, so its own level is not known here.
No storm overflow is placed on this stream on the river map. That is not the same as none: the map cannot place every overflow.
Water samples are England’s only (the Environment Agency’s archive), placed where the map can place their sampling point.
Nothing on this page says whether any place floods. For an address, see its postcode page.

This uses Environment Agency flood and river level data from the real-time data API (Beta). Licence: Open Government Licence v3.0.