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 Birket above one of its gauges, from the source down. Named streams without a gauge that have a page here are listed at the end.
Named streams on the river map that flow into the Birket 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.
Newton Brook (joins about 1.0 km above Fornalls Bridge)
20 storm overflows are traced upstream of Davis Road, the Birket’s lowest gauge on the river map: on the Birket itself, on its gauged tributaries, and on smaller streams that join above there.
0 report discharging now
20 not discharging
0 offline or silent: 0 monitor offline, 0 status unknown, 0 no live feed
Official figures for 2025, for the overflows traced upstream of Davis Road: 329 spills over 1,137 hours in total, across all 20.
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 Birket includes the smaller streams that join it there.
Above Fornalls Bridge, the Birket’s highest gauge1 overflow
Ennisdale Drive CSONot dischargingbathing watershellfish water United Utilities · into Newton Brook · 1.9 km by river above Fornalls Bridge · 2025: 2 spills, 0.2 h
Between Fornalls Bridge and Davis Road12 overflows
Acton Lane Combined Sewer OverflowNot dischargingbathing watershellfish water United Utilities · into Arrowe Brook · 4.9 km by river above Davis Road · 2025: 3 spills, 5.6 h
389 Hoylake Road CSONot dischargingbathing watershellfish water United Utilities · into Arrowe Brook · 4.7 km by river above Davis Road · 2025: 6 spills, 18 h
Garrick Avenue CSONot dischargingbathing watershellfish water United Utilities · into Arrowe Brook · 4.4 km by river above Davis Road · 2025: 3 spills, 5.9 h
Wastdale Drive CSONot dischargingbathing watershellfish water United Utilities · into Arrowe Brook · 3.8 km by river above Davis Road · 2025: 35 spills, 178 h
Pool Lane CSO (512l8)Not discharging United Utilities · into The Fender · 3.7 km by river above Davis Road · 2025: 0 spills, 0 h
Maryland Lane CSONot dischargingbathing watershellfish water United Utilities · into Arrowe Brook · 3.6 km by river above Davis Road · 2025: 0 spills, 0 h
Noctorum Avenue CSO 512ibNot discharging United Utilities · into The River Fender · 3.3 km by river above Davis Road · 2025: 58 spills, 95 h
Upton Storm TanksNot dischargingbathing watershellfish water United Utilities · into River Fender · 2.2 km by river above Davis Road · 2025: 19 spills, 194 h
Rear Of 25 Wheatfield Close CSONot discharging United Utilities · into River Fender · 1.5 km by river above Davis Road · 2025: 47 spills, 258 h
Upton Road CSO 513n8Not discharging United Utilities · into River Fender · 1.5 km by river above Davis Road · 2025: 28 spills, 42 h
Briscoe Drive CSO 511g9Not discharging United Utilities · into River Fender · 1.4 km by river above Davis Road · 2025: 7 spills, 4.3 h
Hoylake Road/Chapelhill CSONot dischargingbathing watershellfish water United Utilities · into River Fender · 880 m by river above Davis Road · 2025: 26 spills, 94 h
Arrowe Brook, above Greasby Roadjoins the Birket above Davis Road1 overflow
Arrowebrook Lane CSONot dischargingbathing watershellfish water United Utilities · into Arrowe Brook Trib River Birket · 1.1 km by river above Greasby Road · 2025: 36 spills, 128 h
Arrowe Brook, above Acton Lanejoins the Birket above Davis Road6 overflows
Greasby Road/Cortsway CSO 511wqNot discharging United Utilities · into Arrowe Brook · 2.4 km by river above Acton Lane · 2025: 7 spills, 24 h
Outside 81 Wodlane CSO 513oiNot discharging United Utilities · into Arrowe Brook · 1.8 km by river above Acton Lane · 2025: 24 spills, 38 h
Wood Lane/Glentree Close CSONot discharging United Utilities · into Arrowe Brook Trib R. Birkett · 1.5 km by river above Acton Lane · 2025: 0 spills, 0 h
97 Wood Lane CSONot discharging United Utilities · into Arrowe Brook · 1.5 km by river above Acton Lane · 2025: 15 spills, 13 h
Saughall Massie Rd/Devonshire RdcsoNot dischargingbathing water United Utilities · into Arrowe Brook · 850 m by river above Acton Lane · 2025: 12 spills, 39 h
Kingfisher Way CSONot dischargingbathing watershellfish water United Utilities · into Arrowe Brook · 440 m by river above Acton Lane · 2025: 1 spill, 0.7 h
Near these gauges, connection not known
Within 3 km of one of the Birket’s gauges in a straight line, but the river map cannot say whether their water reaches it.
Bidston By-Pass CSOMonitor offlinebathing watershellfish water United Utilities · into The River Birkett · 760 m from Davis Road in a straight line · its recorded watercourse is not the one mapped beside it · 2025: 13 spills, 47 h
North Wirral WwTWNo live feed United Utilities · into Liverpool Bay & River Birket · 960 m from Fornalls Bridge in a straight line · discharges to the sea, an estuary or tidal water · 2025: 164 spills, 833 h
North Wirral WwTWNot dischargingbathing water United Utilities · into Liverpool Bay & River Birket · 960 m from Fornalls Bridge in a straight line · discharges to the sea, an estuary or tidal water · 2025: 27 spills, 406 h
Harrington Avenue CSONot dischargingbathing water United Utilities · into Trib Carr Drain (To R. Birket) · 1.3 km from Fornalls Bridge in a straight line · no mapped watercourse close enough to be sure · 2025: 32 spills, 125 h
Wallacre Road CSONot dischargingbathing watershellfish water United Utilities · into Mersey Estuary · 1.5 km from Davis Road in a straight line · discharges to the sea, an estuary or tidal water · 2025: 31 spills, 56 h
Pow Bridge/Station Road CSOStatus unknownbathing water United Utilities · into River Calder · 1.5 km from Davis Road in a straight line · its watercourse is not on the river map · 2025: 0 spills, 0 h
Station Rd Combined Sewer OverflowNot dischargingbathing watershellfish water United Utilities · into Bidston Stream · 1.5 km from Davis Road in a straight line · its watercourse is not on the river map · 2025: 6 spills, 3.9 h
Wallacre Road/Beaufort Drive CSONot dischargingbathing watershellfish water United Utilities · into Bidston Stream · 1.5 km from Davis Road in a straight line · its watercourse is not on the river map · 2025: 4 spills, 2.7 h
Beechwood Avenue CSONot dischargingbathing water United Utilities · into Bidston Stream · 1.6 km from Davis Road in a straight line · its watercourse is not on the river map · 2025: 1 spill, 0.5 h
Leasowe Road CSONot dischargingbathing watershellfish water United Utilities · into Bidston Stream · 1.7 km from Davis Road in a straight line · its watercourse is not on the river map · 2025: 53 spills, 91 h
Sandy Lane CSONot dischargingbathing watershellfish water United Utilities · into Bidston Stream · 1.7 km from Davis Road in a straight line · its watercourse is not on the river map · 2025: 61 spills, 78 h
Black Horse Hill CSO 511evNot dischargingbathing water United Utilities · into Newton Brook Trib Of R.birket · 1.8 km from Fornalls Bridge in a straight line · no mapped watercourse close enough to be sure · 2025: 1 spill, 0.3 h
Stanley Avenue/Green Lane CSONot dischargingbathing water United Utilities · into River Birket · 2.1 km from Davis Road in a straight line · its watercourse is not on the river map · 2025: 3 spills, 0.7 h
Stanley Road Pumping StationNo live feedbathing watershellfish water United Utilities · into River Birket · 2.1 km from Davis Road in a straight line · its watercourse is not on the river map · 2025: 0 spills, 0 h
Rear Of 65 Fulton Ave CSO 5130rNot discharging United Utilities · into Newton Brook · 2.2 km from Fornalls Bridge in a straight line · its watercourse is not on the river map · 2025: 3 spills, 2.8 h
2 more near these gauges whose connection is not known.
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.
8 sampling points on the River Birket and the streams that join it above Davis Road, and below it. 1 has a sample from the last 12 months; 1 has any sample banked. Listed from the source down, grouped by the next gauge each one's water reaches.
Above Greasby RoadArrowe Brook1 point, 0 with samples
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.