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River Idle water levels

Live levels from 2 monitoring stations across Nottinghamshire, updated every 15 minutes.

2stations
0above typical high

Gauges

Monitoring stations, source to mouth

StationTownLevel nowStatusTrend
OrdsallOrdsall0.27 mASD 27m agoNormal—
MatterseyMattersey0.93 mASD 27m agoNormal—

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.

Gauged tributaries

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.

3 gauged tributaries, 7 gauges

River Maun

Joins the Idle above Ordsall, its highest gauge, no more than 17.5 km by river above Ordsall.

Field Mill0.64 mASD 27m agoNormal
Mansfield The Dykes-0.04 mASD 7d agoold reading
Whitewater Bridge0.36 mASD 57m agoNormal

Its water passes every gauge on the Idle, from Ordsall down.

River Meden

Joins the Idle above Ordsall, its highest gauge, no more than 16.7 km by river above Ordsall.

Mansfield Pleasley0.72 mASD 27m agoLow
Church Warsop0.17 mASD 27m agoNormal
Perlethorpe0.51 mASD 27m agoNormal

Its water passes every gauge on the Idle, from Ordsall down.

River Poulter

Joins the Idle above Ordsall, its highest gauge, no more than 5.6 km by river above Ordsall.

Twyford Bridge1.03 mASD 27m agoNormal

Its water passes every gauge on the Idle, from Ordsall down.

Where the Idle goes

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.

Streams without a gauge

Named streams on the river map that flow into the Idle and have no gauge of their own. Each has a page with what is known about it: the next gauge downstream, and any storm overflows or water-sampling points placed on it.

  • Carr Dyke (joins about 15 km above Mattersey)

Storm overflows upstream

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.

  • 0 report discharging now
  • 47 not discharging
  • 2 offline or silent: 0 monitor offline, 1 status unknown, 1 no live feed

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. Every overflow traced is listed here, each stretch in full. Back to the short lists →

Above Ordsall, the Idle’s highest gauge1 overflow
  • London Road CSO Not discharging
    Severn Trent Water · into Trib Of River Idle · 760 m by river above Ordsall · 2025: 6 spills, 1.0 h
River Maun, above Field Milljoins the Idle above Ordsall10 overflows
  • Sheepwash Lane CSO Not discharging
    Severn Trent Water · into River Maun · 3.9 km by river above Field Mill · 2025: 3 spills, 0.7 h
  • Kirkby Folly Road Roundhill CSO Not discharging
    Severn Trent Water · into Tributary Of River Maun · 3.6 km by river above Field Mill · 2025: 3 spills, 0.6 h
  • Kirkby Folly Road Roundhill CSO Not discharging
    Severn Trent Water · into Tributary Of River Maun · 3.6 km by river above Field Mill · 2025: 0 spills, 0 h
  • Kirkby Folly Road Roundhill CSO Not discharging
    Severn Trent Water · into Tributary Of River Maun · 3.6 km by river above Field Mill · 2025: 6 spills, 1.2 h
  • Coxmoor Road Sewage Pumping Station Not discharging
    Severn Trent Water · into River Maun · 3.2 km by river above Field Mill · 2025: 20 spills, 64 h
  • Coxmoor Road CSO Not discharging
    Severn Trent Water · into River Maun · 3.2 km by river above Field Mill · 2025: 0 spills, 0 h
  • Mansfield - 10 Randol Close CSO Not discharging
    Severn Trent Water · into River Maun · 2.0 km by river above Field Mill · 2025: 16 spills, 24 h
  • Sutton-In-Ashfield STW Not discharging
    Severn Trent Water · into River Maun\kingsmill Reservoir · 2.0 km by river above Field Mill · 2025: 2 spills, 7.7 h
  • Mansfield - Sheepbridge Lane 2 CSO Not discharging
    Severn Trent Water · into River Maun · 850 m by river above Field Mill · 2025: 1 spill, 0.1 h
  • Mansfield - Sheepbridge Lane 2 CSO Not discharging
    Severn Trent Water · into River Maun · 850 m by river above Field Mill · 2025: 17 spills, 2.4 h
River Maun, above Mansfield The Dykesjoins the Idle above Ordsall3 overflows
  • Sewage Pumping Station Not discharging
    Severn Trent Water · into River Maun · 2.6 km by river above Mansfield The Dykes · 2025: 24 spills, 81 h
  • Mansfield - Bath Lane STW Not discharging
    Severn Trent Water · into River Maun · 2.5 km by river above Mansfield The Dykes · 2025: 31 spills, 157 h
  • Mansf Woodhouse - Old Mill Ln (CSO) Not discharging
    Severn Trent Water · into River Maun · 1.6 km by river above Mansfield The Dykes · 2025: 32 spills, 39 h
River Maun, above Whitewater Bridgejoins the Idle above Ordsall7 overflows
  • Rainworth Sewage Treatment Works Not discharging
    Severn Trent Water · into Rainworth Water · 16.5 km by river above Whitewater Bridge · 2025: 21 spills, 101 h
  • Rainworth Sewage Treatment Works Not discharging
    Severn Trent Water · into Rainworth Water · 16.5 km by river above Whitewater Bridge · 2025: 19 spills, 37 h
  • Maun Valley Sewage Pumping Station Not discharging
    Severn Trent Water · into River Maun · 14.5 km by river above Whitewater Bridge · 2025: 7 spills, 8.0 h
  • Bilsthorpe Sewage Treatment Works Not discharging
    Severn Trent Water · into Rainworth Water · 10.3 km by river above Whitewater Bridge · 2025: 15 spills, 79 h
  • Edwinstowe CSO Not discharging
    Severn Trent Water · into River Maun · 6.6 km by river above Whitewater Bridge · 2025: 33 spills, 46 h
  • Edwinstowe - Boy Lane (CSO) Not discharging
    Severn Trent Water · into River Maun & Vicar Water · 4.9 km by river above Whitewater Bridge · 2025: 16 spills, 28 h
  • Edwinstowe STW Not discharging
    Severn Trent Water · into River Maun · 4.9 km by river above Whitewater Bridge · 2025: 46 spills, 227 h
River Meden, above Mansfield Pleasleyjoins the Idle above Ordsall6 overflows
  • Meden Bank Combined Sewer Overflow Not discharging
    Severn Trent Water · into River Meden · 5.2 km by river above Mansfield Pleasley · 2025: 2 spills, 1.7 h
  • Meden Bank Combined Sewer Overflow Status unknown
    Severn Trent Water · into River Meden · 5.2 km by river above Mansfield Pleasley · 2025: 2 spills, 6.1 h
  • Skegby - Mansfield Road SSO Not discharging
    Severn Trent Water · into Tributary Of River Meden · 4.7 km by river above Mansfield Pleasley · 2025: 6 spills, 1.0 h
  • Skegby Sewage Treatment Works Not discharging
    Severn Trent Water · into Skegby Brook · 4.3 km by river above Mansfield Pleasley · 2025: 38 spills, 114 h · placed on the river by its position alone
  • Skegby Sewage Treatment Works Not discharging
    Severn Trent Water · into Skegby Brook · 4.3 km by river above Mansfield Pleasley · 2025: 37 spills, 253 h · placed on the river by its position alone
  • Wilkinsons Close CSO Not discharging
    Severn Trent Water · into River Meden · 470 m by river above Mansfield Pleasley · 2025: 0 spills, 0 h
River Meden, above Church Warsopjoins the Idle above Ordsall4 overflows
  • Pleasley - Jenkins Street SPS Not discharging
    Severn Trent Water · into River Meden · 7.9 km by river above Church Warsop · 2025: 7 spills, 5.9 h
  • Oxclose Lane SPS Not discharging
    Severn Trent Water · into River Meden · 6.4 km by river above Church Warsop · 2025: 4 spills, 1.2 h
  • Shirebrook Sewage Treatment Works Not discharging
    Severn Trent Water · into Shire Brook · 3.5 km by river above Church Warsop · 2025: 13 spills, 74 h · placed on the river by its position alone
  • Shirebrook Sewage Treatment Works Not discharging
    Severn Trent Water · into Shire Brook · 3.5 km by river above Church Warsop · 2025: 8 spills, 9.2 h · placed on the river by its position alone
River Meden, above Perlethorpejoins the Idle above Ordsall8 overflows
River Poulter, above Twyford Bridgejoins the Idle above Ordsall6 overflows
  • Creswell Sewage Pumping Station Not discharging
    Severn Trent Water · into Millwood Brook - Creswell Arm · 22.7 km by river above Twyford Bridge · 2025: 35 spills, 127 h · placed on the river by its position alone
  • Creswell Sewage Treatment Works Not discharging
    Severn Trent Water · into A Tributary Of Millwood Brook · 22.7 km by river above Twyford Bridge · 2025: 59 spills, 286 h
  • Whaley Thorns - Main Road/Limes Ave (So) No live feed
    Severn Trent Water · into River Poulter · 20.8 km by river above Twyford Bridge · 2025: no data
  • Langwith CSO Not discharging
    Severn Trent Water · into River Poulter · 20.7 km by river above Twyford Bridge · 2025: 39 spills, 82 h
  • Nether Langwith STW Not discharging
    Severn Trent Water · into River Poulter · 19.7 km by river above Twyford Bridge · 2025: 15 spills, 111 h
  • Norton STW Not discharging
    Severn Trent Water · into River Poulter · 16.2 km by river above Twyford Bridge · 2025: 43 spills, 223 h
Between Ordsall and Mattersey4 overflows
  • Kings Park (CSO) Not discharging
    Severn Trent Water · into River Idle/Maun/Carr Dyke · 16.5 km by river above Mattersey · 2025: 3 spills, 26 h
  • Retford - Kings Park CSO Not discharging
    Severn Trent Water · into Carr Dyke · 15.6 km by river above Mattersey · 2025: 10 spills, 90 h
  • Retford Sewage Treatment Works Not discharging
    Severn Trent Water · into River Idle · 12.8 km by river above Mattersey · 2025: 21 spills, 172 h
  • Church House Pumping Station Not discharging
    Severn Trent Water · into River Idle · 130 m by river above Mattersey · 2025: 1 spill, 1.3 h

Near these gauges, connection not known

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.

  • Bracken Lane East Retford CSO Not discharging
    Severn Trent Water · into Retford Beck · 1.2 km from Ordsall in a straight line · no mapped watercourse close enough to be sure · 2025: 0 spills, 0 h
  • Ranskill Sewage Treatment Works Not discharging
    Severn Trent Water · into Tributary Of Ranskill Brook · 2.8 km from Mattersey in a straight line · no mapped watercourse close enough to be sure · 2025: 3 spills, 8.6 h
  • Grove Sewage Treatment Works Not discharging
    Severn Trent Water · into Tributary Of North Beck · 2.9 km from Ordsall in a straight line · its watercourse is not on the river map · 2025: 26 spills, 78 h

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.

Water samples

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 downSampling pointsNewest sample
Above Mattersey5 points3 sampled22 May 2026
River Meden and its streamsjoins the Idle above Ordsall14 points8 sampled1 Oct 2026
River Maun and its streamsjoins the Idle above Ordsall16 points9 sampled16 Sep 2026
Above Twyford BridgeRiver Poulter · joins the Idle above Ordsall24 points7 sampled11 Aug 2026
Above Ordsall5 points3 sampled2 Sep 2026
Below the lowest gauge4 points3 sampled3 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.