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Lambwath Stream

A stream near Withernwick, East Riding of Yorkshire. No gauge of its own: what the river map and the banked data say about it.

Lambwath Stream is a stream on Ordnance Survey’s river map near Withernwick, East Riding of Yorkshire, with about 17 km of mapped channel. On the map it flows into Foredyke Stream, which flows on into Holderness Drain; beyond that the map has a gap, so where it goes next is not known.

Next gauge downstream

Bransholme Great Culvert Pumping Station on Holderness Drain, about 1.8 km along the river below where Lambwath Stream ends on the map.

-2.06 mAOD Tidal: rises and falls with the tide 29 min ago

After that, East Hull Hedon Road, about 9.1 km along the river.

No gauge measures Lambwath Stream 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.

Storm overflows on Lambwath Stream

2 storm overflows are placed on this stream on the river map. Each status is the water company’s own monitor.

Skirlaugh CSO Not discharging
Yorkshire Water · into Lambwath Stream · 2025: 13 spills, 62 h
New Ellerby STW Not discharging
Yorkshire Water · into Lambwath Stream · 2025: 41 spills, 297 h

A status says whether an overflow is discharging now, never how much or why. A monitor that is offline or has not reported is not “not discharging”. Sewage in Britain’s rivers →

Live status: © Yorkshire Water storm overflow activity data, licensed under CC BY 4.0. Annual spill figures: Environment Agency Event Duration Monitoring return, © Environment Agency copyright and/or database right, Open Government Licence (OGL) v3.0.

Water-sampling points on Lambwath Stream

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.

Lambwath Stream at Lambwath Bridge
No sample published 1 Oct 2023 – 30 Sep 2026
Lambwath Stream upstream of Aldbrough sewage treatment works
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.

Places along it

From its source towards its mouth, the settlements within a kilometre of it on the map: Aldbrough, Withernwick, Whitedale, New Ellerby, Skirlaugh.

On the map

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

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

Streams flowing into it

HU7 5YX, a postcode page near where it ends on the map (about 960 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 Lambwath Stream itself, so its own level is not known here.
Storm overflows are listed only where the river map places them on this stream; an overflow it could not place is not counted.
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.