Sewage Map

Hill Bridge/CSO

Storm overflow operated by Yorkshire Water. The source names River Loxley as the receiving water.

33
Spills in 2025
51.5
Recorded hours
84%
Monitor operation
6
Years listed
Current status unknown

Checking the latest monitor report…

Open official annual data ↗

How it compares in 2025

Hill Bridge/CSO recorded 33 spills in 2025. That is more than 77% of the 14,239 overflows in England with a reported figure, and ranks 3,116th nationally. Among Yorkshire Water overflows it ranks 608th of 2,176; the median Yorkshire Water overflow recorded 16 spills. On the Loxley from Strines Dyke to River Don waterbody it ranks 2nd of 7.

The monitor worked for 84% of 2025, so this count may be low and its rank may understate activity.

GroupRank by spillsMedian spillsMedian hours
This outlet–3351.5
England3,116th of 14,2391122.3
Yorkshire Water608th of 2,1761637.8
Loxley from Strines Dyke to River Don2nd of 71612.8

Rank 1 has the most spills. Equal counts share a rank. Only overflows with a reported count are ranked. Counts do not measure volume, so a higher rank does not mean more sewage.

Annual spill history

292020532021392022632023492024332025
From 2020 to 2025, the reported count went from 29 to 33 spills. The highest count was 63 in 2023 and the lowest was 29 in 2020. The monitor worked for less than 90% of 2022, 2024, 2025, so those counts may be low.Amber bars mark years when the monitor worked for less than 90% of the year.
YearSpillsDurationMonitor operationSource
20253351.5 hours84%Low coverageOfficial data
20244961 hours88.5%Low coverageOfficial data
20236380 hours97.2%Official data
20223939.3 hours70%Low coverageOfficial data
20215351.8 hours90.1%Official data
202029115 hours97.2%Official data

A missing figure means the source did not provide a usable value. A zero is shown as zero. Monitor operation below 90% can make comparison less reliable.

Outlet details

Water company
Yorkshire Water
Outlet type
Storm overflow on the sewer network
Permit
WRA9131
Activity reference
A1
Grid reference
SK3327689572
Waterbody ID
GB104027057370Official waterbody record ↗
Location source
Official annual grid reference
Location precision
About 1 metres
Location note
Unknown

About the name and type

The annual return lists this asset as “SO on sewer network”: storm overflow on the sewer network. The return places this overflow on the sewer network.

The waterbody link opens the Environment Agency record for the exact ID in the return. It is a source lookup; we do not import its classification.

Where it is

The recorded position is about 3.7 km south-east of the Worrall reference point in the ONS built-up areas data.

Area and water pages

Check the official record

Public access to this outlet is unknown. Do not enter restricted land or use this page as a route guide.

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Other outlet records nearby

Questions about Hill Bridge/CSO

Who operates Hill Bridge/CSO?
Yorkshire Water is the operator named in the annual record. The permit reference is WRA9131.
Where does Hill Bridge/CSO discharge?
The source names River Loxley as the receiving water. This does not show how far a discharge travelled.
How many times did Hill Bridge/CSO spill in 2025?
The 2025 return records 33 counted spill events and 51.5 hours of recorded discharge. Spills are counted with the 12/24-hour method, so this is not a count of every start signal.
Can I trust the 2025 figures for this outlet?
The monitor worked for 84% of the reporting period. Below 90%, some events can be missed, so the count and hours may understate activity.
Is Hill Bridge/CSO discharging right now?
This record is linked to a company live feed. The panel above shows the latest report we hold, with its date. That report can be old, and the monitor can be offline, so check the date before relying on it. A report that no discharge is taking place is not a water-quality result.
How accurate is the map marker?
The marker comes from the grid reference in the official annual return, which is accurate to about 1 metres. It shows the recorded outlet position, not the extent of any discharge.
What kind of outlet is Hill Bridge/CSO?
The annual return lists the asset type as “SO on sewer network”, which means storm overflow on the sewer network. The return places this overflow on the sewer network.
How does Hill Bridge/CSO compare with other overflows?
Hill Bridge/CSO recorded 33 spills in 2025. That is more than 77% of the 14,239 overflows in England with a reported figure, and ranks 3,116th nationally. Among Yorkshire Water overflows it ranks 608th of 2,176; the median Yorkshire Water overflow recorded 16 spills. On the Loxley from Strines Dyke to River Don waterbody it ranks 2nd of 7. Ranks compare counted spill events only. They do not compare volume or harm.
Does zero spills mean the water was safe?
No. A zero means the annual return recorded zero counted spill events for this outlet and year. It is not a water-quality test, and pollution can come from other sources.