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.
Streams and rivers with a gauge whose water joins the Crane 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.
5 storm overflows are traced upstream of Marsh Farm, the Crane’s lowest gauge on the river map: on the Crane itself, on its gauged tributaries, and on smaller streams that join above there.
0 report discharging now
4 not discharging
1 offline or silent: 0 monitor offline, 1 status unknown, 0 no live feed
Official figures for 2025, for the overflows traced upstream of Marsh Farm: 0 spills over 0 hours in total, across all 5.
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 Crane includes the smaller streams that join it there.
CSO At Field End Road StormNot discharging Thames Water · into Yeading Brook East · 1.8 km by river above Northholt, Yeading East · 2025: 0 spills, 0 h · placed on the river by its position alone
N/ANot discharging Thames Water · into N/A · 6.6 km by river above Hillingdon, Gutteridge Wood · 2025: 0 spills, 0 h · placed on the river by its position alone
N/AStatus unknown Thames Water · into N/A · 6.1 km by river above Hillingdon, Gutteridge Wood · 2025: 0 spills, 0 h · placed on the river by its position alone
Between Cranford Park and Marsh Farm2 overflows
Junction Crane Valley/Bath Rd CSONot discharging Thames Water · into River Crane · 8.8 km by river above Marsh Farm · 2025: 0 spills, 0 h
N/ANot discharging Thames Water · into N/A · 7.4 km by river above Marsh Farm · 2025: 0 spills, 0 h · placed on the river by its position alone
Near these gauges, connection not known
Within 3 km of one of the Crane’s gauges in a straight line, but the river map cannot say whether their water reaches it.
Anyand Park Road, TwickenhamNo live feed Thames Water · into Tidal Thames · 1.1 km from Marsh Farm in a straight line · discharges to the sea, an estuary or tidal water · 2025: 0 spills, 0 h
N/ANot discharging Thames Water · into N/A · 2.3 km from Marsh Farm in a straight line · discharges into a tidal reach, where the water moves both ways · 2025: 4 spills, 4.5 h
Mogden WwTWNot discharging Thames Water · into River Thames Tidal · 2.4 km from Marsh Farm in a straight line · discharges to the sea, an estuary or tidal water · 2025: 17 spills, 203 h
Petersham Road CSONo live feed Thames Water · into River Thames · 2.6 km from Marsh Farm in a straight line · discharges into a tidal reach, where the water moves both ways · 2024: 8 spills, 18 h
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.
5 sampling points on the River Crane and the streams that join it above Marsh Farm. 4 have a sample from the last 12 months; 4 have any sample banked. Listed from the source down, grouped by the next gauge each one's water reaches.
Distances are along the river to the gauge named. England's samples only.
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.
