Dock Road CSO (Bt44)

Storm overflow run by Northumbrian Water, discharging into River Tweed.

Storm overflow on the sewer network Bathing water North Northumberland constituency

Linked bathing water: Spittal, classified Good for 2025. Named in the company’s return to the Environment Agency. A name opens that bathing water’s official profile, with any pollution warning in the season. The classification is the Environment Agency’s for that bathing season, from all its samples there: it is not a reading of the water today, and it does not say what part this overflow played.

Right now
Not discharging
Last discharge ended on (1 day ago).
Times are UK time. Company feed updated 4 min ago

"Not discharging" means the company's monitor reports no discharge right now — not that the water is clean. The feed publishes status only; no discharge volume is measured.

2026 so far
25spills
at least 17 h discharging on 26 days · live feed, before 28 Feb via Top of the Poops, not yet official · 9 discharges whose end the feed did not report (counted, no hours)
2025 official
19spills
17 h · −46% on 2024
Rank in Northumbrian Water
#545
of 1,547 overflows by 2025 spills (1 = most)
Monitor in 2025
94.7% working
Long-term average 36.7 spills a year

Year by year

The Environment Agency's official annual returns, counted the EA's way (12/24-hour spills). 2026 is our own running count, the same way, from the live feed: our own log of it begins on 28 February, and the discharges before that are Top of the Poops' record of the same feed. The feed reports only each overflow's latest discharge, so a discharge it moved past before we saw it end is counted as one spill with no hours: the hours are a floor. The official figure is published next spring.

2021
49 spills · 107 hmonitor 100%
2022
36 spills · 40 hmonitor 100%
2023
34 spills · 47 hmonitor 99.9%
2024
35 spills · 64 hmonitor 96.6%
2025
19 spills · 17 hmonitor 94.7%
2026so far
25 spills · at least 17 h

A spill is the EA's 12/24-hour count: the first 12 hours of a discharge count as one, each further 24 hours with discharge as one more. "Monitor" is the share of that year the monitor was working, so a 0 beside a working monitor is a real zero; "no data" means the monitor produced no usable data that year — not zero. Years before 2024 are matched to this site by name and location, because the EA's site IDs changed that year; a monitor figure beside one of them means the outlet's permit confirms the match.

Other outlets here

Northumbrian Water runs 4 other overflows within 300 m that also discharge into River Tweed. They share the sewer and the storm, so one outlet's figures are only part of what reaches the water.

170m 33 Dock Road CSONWL0000733 Dock Road CSO 28spills in 2025
170m Tower Road CSONWL01397Tower Road CSO 0spills in 2025
170m Mount Road CSO Bt003NWL00912Mount Road CSO Bt003 32spills in 2025
175m Brandywell CSONWL00188Brandywell CSO 40spills in 2025

This overflow: 19 spills in 2025. Distances are between the published outlet points.

What the 2025 return says

From Northumbrian Water's annual return to the Environment Agency for this overflow.

High-spill review
High spill threshold not met
Long-term review
Not asset maintenance - Hydraulic capacity
Investigation
Operational investigation ongoing
Improvement work
No improvement action in reporting period
Monitored since
2013
Water body
TWEED

"High spill threshold not met" means this overflow did not spill often enough to trigger the EA's formal high-spill review for that year. It is not a statement that the spills were harmless.

Discharges we have recorded

385 discharge periods since 9 Jan 2020, 9 whose end the feed never gave. 339 of them come from Northumbrian Water's own event-duration-monitoring records (published on Stream, Jan 2020 – Dec 2025); the live feed adds anything after that. The official annual count is the figure to quote.

Show 30 earlier (of 385)
StartedEndedDischarge time
8 min
18 min
2 min
not captured, before not captured
20 min
8 min
18 min
not captured, before not captured
4 min
2 min
4 min
2 min
not captured, before not captured
4 min
4 min
12 min
not captured, before not captured
not captured, before not captured
not captured, before not captured
2 min
4 min
20 min
6 min
6 min
4 min
4 min
4 min
14 min
40 min
24 min

The year figures above use the EA's 12/24-hour counting method, so they are comparable with the official figures; the monitor log's 539 raw blocks were merged into 385 continuous discharge periods (gaps under 15 min joined).

What the feed showed

FloodRadar's own record of every change of state Northumbrian Water's live feed has shown for this overflow, kept since : 14 states. The feed publishes its status now and its latest discharge, nothing older; the discharges above are read from this. It is here so the figures can be checked.

Show the last 14 states
SeenStatusSinceLatest discharge
Not discharging →
Discharging → no end yet
Not discharging →
Not discharging →
Not discharging →
Discharging → no end yet
Discharging → no end yet
Not discharging →
Discharging → no end yet
Not discharging →
Discharging → no end yet
Not discharging →
Discharging → no end yet
Not discharging →

Rain nearby last 30 days

Nearest live rain gauge: Rainfall gauge nr East Ord, 1.7 km away. Brown shading = when this overflow was discharging; ▼ = a discharge start.

Overflow shading is a timing match, not proof of cause — heavy rain and spills share a trigger. Times come from the water company’s event-duration monitor (site status only; no discharge volume is published).

Where it is

Nearest river gauge
Berwick (River Tweed) · 0.5 km
Nearest rain gauge
Council area
Northumberland
Site reference
NWL00451 · permit 210/1363
Coordinates
55.76238, -2.00361

Tell me when this overflow discharges

One message when the company's monitor reports a new discharge here. At most one every 6 hours.

Setting this alert needs JavaScript. The alerts you already have are on your alerts page.

The alert repeats the monitor's status: whether the overflow is discharging, not how much or why. It can only tell you about a discharge that starts after you turn it on.

Concerned about this overflow?

Report pollution you can see or smell to the regulator straight away; the company handles complaints about the overflow itself.

Write to the MP

The Environment Agency's return places this overflow in the North Northumberland constituency. An MP can ask the company and the regulator questions on a constituent's behalf. These words carry the official figures; change them as you like.

The link opens Parliament's own "Find your MP", which gives the MP's name and how to write to them. FloodRadar sends nothing and keeps nothing you write. Check the constituency against your own address: an MP acts only for people who live in it.

Live status: © Northumbrian Water storm overflow activity data, licensed under CC BY 4.0. Annual spill figures: Environment Agency Event Duration Monitoring return, © Environment Agency copyright and/or database right, Open Government Licence (OGL) v3.0. Storm-overflow spill events: © the respective water company, published on Stream (data.streamwaterdata.co.uk) under CC BY 4.0. Discharges marked "EA start/stop data": Environment Agency Event Duration Monitoring storm overflow start/stop detailed data, © Environment Agency copyright and/or database right 2026, Open Government Licence v3.0; the companies' monitor records as the EA received them, not verified by the EA. Discharges marked "via Top of the Poops", and this year's figures before 28 February, come from Top of the Poops' record of the same company feed, used under CC BY-SA 4.0: the feed's own start and end times as its pages print them, not their derived hours. Times are shown in UK local time. FloodRadar republishes the monitor's status and the EA's figures; it does not measure discharges itself. Constituency and council area from the EA's return: contains OS data © Crown copyright and database right 2026.