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Live levels from 2 monitoring stations across Nottinghamshire, updated every 15 minutes.
| Station | Level now | Status | ||
|---|---|---|---|---|
| Ordsall | 0.27 mASD 35m ago | Normal | ||
| 17.3 km by river | ||||
| Mattersey | 0.93 mASD 35m ago | Normal | ||
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 Idle above one of its gauges, from the source down. Named streams without a gauge that have a page here are listed at the end.
Joins the Idle above Ordsall, its highest gauge, no more than 17.5 km by river above Ordsall.
| Field Mill | 0.64 mASD 35m ago | Normal |
| 4.6 km by river | ||
| Mansfield The Dykes | -0.04 mASD 6d ago | old reading |
| 14.5 km by river | ||
| Whitewater Bridge | 0.35 mASD 1h ago | Normal |
Its water passes every gauge on the Idle, from Ordsall down.
Joins the Idle above Ordsall, its highest gauge, no more than 16.7 km by river above Ordsall.
| Mansfield Pleasley | 0.72 mASD 35m ago | Low |
| 8.0 km by river | ||
| Church Warsop | 0.17 mASD 35m ago | Normal |
| 12.0 km by river | ||
| Perlethorpe | 0.51 mASD 35m ago | Normal |
Its water passes every gauge on the Idle, from Ordsall down.
Joins the Idle above Ordsall, its highest gauge, no more than 5.6 km by river above Ordsall.
| Twyford Bridge | 1.03 mASD 35m ago | Normal |
Its water passes every gauge on the Idle, from Ordsall down.
Below Mattersey, its water next reaches Keadby, a gauge on River Trent, 46.4 km by river downstream.
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.
49 storm overflows are traced upstream of Mattersey, the Idle’s lowest gauge on the river map: on the Idle itself, on its gauged tributaries, and on smaller streams that join above there.
Official figures for 2025, for the overflows traced upstream of Mattersey: 721 spills over 2,611 hours in total, across the 48 that have a figure. 1 had no usable monitor data that year.
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 Idle includes the smaller streams that join it there. Where a stretch or a tributary has more than 4, the 3 discharging now or nearest its gauge are listed, the rest are counted, and every one is in that gauge’s “Upstream of here” list. Show every overflow in every stretch →
and 17 more: show all 20 overflows on the Maun and the streams that join it → All above Whitewater Bridge, nearest first →
and 15 more: show all 18 overflows on the Meden and the streams that join it → All above Perlethorpe, nearest first →
and 3 more: show all 6 overflows on this stretch → All above Twyford Bridge, nearest first →
Within 3 km of one of the Idle’s gauges in a straight line, but the river map cannot say whether their water reaches it.
1 other overflow within 3 km of these gauges is placed below the Idle’s lowest gauge or on another river, so not listed.
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: © Severn Trent Water storm overflow activity data, licensed under CC BY 4.0. Annual figures for England: Environment Agency Event Duration Monitoring return, © Environment Agency copyright and/or database right, Open Government Licence v3.0.
Dated samples taken by the Environment Agency, not live readings. Results are published days to months after the sample is taken, and many points are sampled only a few times a year, or have not been sampled for years.
68 sampling points on the River Idle and the streams that join it above Mattersey, and below it. 29 have a sample from the last 12 months; 33 have any sample banked.
Sampled most recently, anywhere on the Idle and its streams:
| Where, from the source down | Sampling points | Newest sample |
|---|---|---|
| Above Mattersey | 5 points3 sampled | 22 May 2026 |
| River Meden and its streamsjoins the Idle above Ordsall | 14 points8 sampled | 1 Oct 2026 |
| River Maun and its streamsjoins the Idle above Ordsall | 16 points9 sampled | 16 Sep 2026 |
| Above Twyford BridgeRiver Poulter · joins the Idle above Ordsall | 24 points7 sampled | 11 Aug 2026 |
| Above Ordsall | 5 points3 sampled | 2 Sep 2026 |
| Below the lowest gauge | 4 points3 sampled | 3 Aug 2026 |
England's samples only. Each count opens the list of those points, nearest first, with the date of each one’s latest sample (the gauge’s “Upstream of here” list).
FloodRadar does not grade these results: there is no overall score, and official river classifications are a separate dataset. A sample taken downstream of an overflow does not by itself show where anything in it came from. River connections and distances are traced on OS Open Rivers (edition 2026-04), which leaves out many small channels.
Water samples: Environment Agency Water Quality Archive, © Environment Agency and/or database right 2026, Open Government Licence v3.0.
Contains OS data © Crown copyright and database rights 2026.
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