FloodRadar
Log inCreate free account
FloodRadar
Log inCreate free account
7 gauges. None of the 5 that can be compared with a typical high is above it. Gauges in Carmarthenshire, Isle of Anglesey, Pembrokeshire, Swansea; levels are checked every 15 minutes.
Loading the map…
| Station | Level now | Status |
|---|---|---|
| Pontarddulais River Stationplace estimated | 0.39 m 17m ago | Within its typical range |
| Halfway River Stationplace estimated | 0.52 m 17m ago | Within its typical range |
| Felinfoel River Stationplace estimated | 0.54 m 32m ago | Within its typical range |
| Trebeddrod River Stationtidalplace estimated | 0.18 m 32m ago | Within its typical range |
| Llanelli TideGaugetidalplace estimated | 1.05 mAOD 17m ago | Within its typical range |
| Station | Level now | Status |
|---|---|---|
| Afon Rhyd Y Valley River Stationplace estimated | 2.05 mAOD 32m ago | Within its typical range |
| Station | Level now | Status |
|---|---|---|
| Stepaside River Stationplace estimated | 0.39 m 17m ago | Within its typical range |
Stations are listed from source to mouth as the water flows, traced on the river map (OS Open Rivers) and the Environment Agency’s own links between its gauges. A distance “by river” is along the river, and is shown only where the map traces the path.
Contains OS data © Crown copyright and database rights 2026.
Streams and rivers with a gauge whose water joins the TBC above one of its gauges, from the source down. The river map knows where gauges are, not every stream, so a tributary without a gauge is not listed here.
No gauged tributary joins the TBC above Pontarddulais River Station on the river map. Streams without a gauge are not counted here.
No gauge below Pontarddulais River Station is known on the river map.
No gauged tributary joins the TBC above Stepaside River Station on the river map. Streams without a gauge are not counted here.
No gauge below Stepaside River Station is known on the river map.
Tributaries and where they join are traced on the river map (OS Open Rivers, edition 2026-04) and the Environment Agency’s links between its gauges. The map holds distances between gauges, not the junctions themselves, so a junction is placed between two gauges, and no further up than the tributary’s own lowest gauge. Contains OS data © Crown copyright and database rights 2026.
None of the storm overflows FloodRadar holds is traced upstream of Pontarddulais River Station on the river map. That is not the same as none: the map leaves out many small streams and culverts, so an overflow it cannot place may still drain here, and not every company publishes every overflow.
Within 3 km of one of the TBC’s gauges in a straight line, but the river map cannot say whether their water reaches it.
2 other overflows within 3 km of these gauges are placed below the TBC’s lowest gauge or on another river, so not listed.
1 storm overflow is traced upstream of Stepaside River Station, the TBC’s lowest gauge on the river map: on the TBC itself, on its gauged tributaries, and on smaller streams that join above there.
Official figures for 2025, for the overflow traced upstream of Stepaside River Station: 44 spills over 350 hours.
Each overflow is listed in the stretch above the first gauge its water reaches, from the source down, as on the Gauges tab. A stretch of the TBC includes the smaller streams that join it there.
Within 3 km of one of the TBC’s gauges in a straight line, but the river map cannot say whether their water reaches it.
3 other overflows within 3 km of these gauges are placed below the TBC’s lowest gauge or on another river, so not listed.
A status is the water company’s own monitor, shown only when it has reported in the last two hours. It says whether an overflow is discharging — never how much, or why. Sewage in Britain’s rivers →
A status is the water company’s own monitor: it says whether an overflow is discharging, never how much or why, and a spill does not by itself explain a change in a river level. A status older than two hours is shown as unknown. Annual figures are the official returns: 12/24-hour spills for England and Wales, overflow events for Scotland (Scottish Water counts differently, so the two cannot be compared). “No data” means the monitor produced no usable data that year, not zero. Overflows are placed on OS Open Rivers (edition 2026-04), which leaves out many small channels: an overflow the map cannot place may still drain here. Contains OS data © Crown copyright and database rights 2026. Sewage in Britain’s rivers →
Live status: © Dŵr Cymru Welsh Water, from its Storm Overflow Map. Annual figures for Wales: Dŵr Cymru Welsh Water’s return to Natural Resources Wales, as compiled by The Rivers Trust, Open Government Licence.
FloodRadar helper · beta