Top of the Poops | Constituency Sewage Map | Bristol Central

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Live data for Bristol Central in 2026

So far this year (as of 18 May 2026, 12:00) there has been 241 hours of sewage overflows, from 48 CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s

Totals for Bristol Central in 2025

24 Sites polluted by Wessex Water

375 sewage dumps

587 hours duration

That's 3.49 weeks. On average 1 times a day

Change Over Time

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Pollution Summary 2025

Here are all the reported sewage overflow totals for Bristol Central in 2025. Sometimes sewage can be being dumped for months at a time.

Reporting refers to how much of the time the monitoring was active. In this constituency all the declared CSO Combined Sewage Overflow - a device that, when operating, pours combined rainwater & sewage into a waterway s appeared to have monitoring enabled for more than 50% of the year

Company	Waterway	Site	Sewage Dumps	Duration (Hours)	Reporting %
Wessex Water	River Avon	PLIMSOLL STATUE CSO	37	259	100
Wessex Water	Cranbrook Via Sws	CRANBROOK ROAD CSO	42	51	100
Wessex Water	River Avon Via Sws	2 CRANBROOK ROAD CSO	48	49	100
Wessex Water	River Avon Via Sws	MINA ROAD SEWER STORM OVERFLOW	35	47	100
Wessex Water	River Avon Via Sws	COTHAM HILL CSO	31	44	100
Wessex Water	River Avon	COTHAM BROW CSO	47	20	100
Wessex Water	River Avon [Black Rocks] Sws	ALMA ROAD CSO	22	18	100
Wessex Water	River Avon Via Sws	HAMPTON ROAD CSO	24	17	100
Wessex Water	River Avon	BROAD QUAY CSO	3	17	100
Wessex Water	River Avon	COMMERCIAL ROAD CSO	7	15	100
Wessex Water	River Avon Via Sws	CUMBERLAND ROAD OLD GAOL SYPHON CSO	3	12	100
Wessex Water	River Frome	THE MANSE CSO	2	6	100
Wessex Water	Floating Harbour	56 HOTWELL ROAD CSO	7	5	97.3
Wessex Water	River Frome Via Sws	BROADMEAD CSO	2	4	97.3
Wessex Water	Cranbrook Brook Via Sws	192 CRANBROOK ROAD	15	4	95.6
Wessex Water	River Avon[Black Rocks]	CLIFTON DOWN STATION	16	4	99.9
Wessex Water	Cranbrook	CAIRNS ROAD COMBINED SEWER OVERFLOW	8	2	100
Wessex Water	River Avon	ASHLEY DOWN ROAD ALLOTMENTS CSO	4	1	100
Wessex Water	River Avon Via Sws	BISHOPS ROAD CSO	10	1	100
Wessex Water	Bristol Frome Floating Harbour	98 HOTWELL ROAD CSO	3	1	100
Wessex Water	River Avon	STATION ROAD CSO	3	0	100
Wessex Water	River Frome	MARLBOROUGH STREET CSO	2	0	100
Wessex Water	Cranbrook	ST OSWALDS ROAD CSO	3	0	100
Wessex Water	River Frome Via Sws	ST JAMES BARTON CSO	1	0	97.8
Wessex Water	Unknown	BIRCHALL ROAD	0	0	100
Wessex Water	River Frome	BROADMEAD ROUNDABOUT CSO	0	0	79.7
Wessex Water	River Frome Via Sws	CHRISTMAS STEPS CSO	0	0	100
Wessex Water	Unknown	CLARE STREET CSO	0	0	98.3
Wessex Water	River Frome Via Sws	LEWINS MEAD COMBINED SEWER OVERFLOW	0	0	100
Wessex Water	Groundwater Via Infilt System	MAGDELENE PLACE CSO	0	0	100
Wessex Water	River Frome	NELSON STREET (2) CSO	0	0	100
Wessex Water	River Frome	NELSON STREET 1 CSO	0	0	92.8
Wessex Water	Unknown	SILVER STREET	0	0	94.8
Wessex Water	River Avon	SOMERVILLE ROAD CSO	0	0	91.1

Data Sources & Accuracy

EDM (Event Duration Monitoring) data and Consented Discharges to Controlled Waters with Conditions from Environment Agency & Data Map Wales, and Scottish Water

Experimental derived data from Thames Water API, Some data may be missing or inaccurate. Live sewage data from Stream Water API

Uses Environment Agency rainfall data from the real-time data API (Beta) - Rainfall data is delayed by up to two days.

This website is intended to provide an accurate representation of the Environment Agency data. The data is hard to use, and thus some errors may have been made. If you find something that is incorrect, please raise an issue at the GitHub issues page and we'll endeavour to fix it quickly.

This project is not associated, approved or endorsed by any of the companies whose logos you see here.

Analysing sewage pollution by the Water Industry

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© Openstreetmap contributors, Contains OS data © Crown copyright and database right 2021-2025,
Contains Water UK National Storm Overflow Hub Data CC-BY-SA 4.0 and analysis © 2025 Top-Of-The-Poops

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