Castle Bytham

Name: Castle Bytham River Level Data
Creator: FloodRadar

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▲ Above a heightTriggers when the level passes a height you choose. ✓ ↗ Rising fastTriggers when it's climbing more than 0.10 m/hr. ✓ 🚱 Sewage nearbyA storm overflow starts discharging within ~3 km. ✓

⤴ Unusual rise — FloodRadar+Top 1% rise rate for this gauge.

Height for "Above a height"

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Not an emergency service — if in danger call 999. Alerts rely on EA/SEPA data and are best-efforts. Terms

Current Level

0.262 mASD

▬ Steady

24h Max

0.263 mASD

24h Min

0.261 mASD

Typical Range

0.01 - 0.99

mASD

Highest Recorded

1.75 mASD

EA official record

A 3.36 reading (30 Oct 2017) sits in our unverified raw history and is not treated as the record

Current level is 15% of this

Nimbus beta

Experimental model fusing soil moisture, river flow, groundwater and catchment character. The shaded band is its 10–90% range, widened so that about 80% of recent outcomes fall inside it. Under evaluation — not yet promoted, so treat as a second opinion.

Recent Readings

Steady over 5h

10 Sep 19:30 ▬ steady 0.262 mASD

10 Sep 19:15 ▬ steady 0.262 mASD

10 Sep 19:00 ▲ +0.1 cm 0.262 mASD

10 Sep 18:45 ▬ steady 0.261 mASD

10 Sep 18:30 ▬ steady 0.261 mASD

10 Sep 18:15 ▼ -0.1 cm 0.261 mASD

10 Sep 18:00 ▬ steady 0.262 mASD

10 Sep 17:45 ▬ steady 0.262 mASD

10 Sep 17:30 ▬ steady 0.262 mASD

10 Sep 17:15 ▲ +0.1 cm 0.262 mASD

10 Sep 17:00 ▼ -0.1 cm 0.261 mASD

10 Sep 16:45 ▬ steady 0.262 mASD

10 Sep 16:30 ▬ steady 0.262 mASD

10 Sep 16:15 ▬ steady 0.262 mASD

10 Sep 16:00 ▬ steady 0.262 mASD

10 Sep 15:45 ▬ steady 0.262 mASD

10 Sep 15:30 ▬ steady 0.262 mASD

10 Sep 15:15 ▬ steady 0.262 mASD

10 Sep 15:00 ▬ steady 0.262 mASD

10 Sep 14:45 0.262 mASD

Flood history near this gauge

Official Environment Agency warnings issued since 2007 for the 4 flood areas linked to this gauge (nearest 2.0 km away).

14flood warnings 76flood alerts

Most recent flood warning: 6 Jan 2025 — River Tham in Castle Bytham and Little Bytham

Year by year

Year	Warnings	Alerts
2026	0	7
2025	3	4
2024	2	7
2023	2	8
2022	0	6
2021	0	7
2020	1	5
2019	0	8
2018	0	2
2016	2	2
2014	0	1
2013	2	5
2012	0	4
2010	0	1
2009	0	1
2008	1	3
2007	1	5

Warnings apply to a whole flood area, not necessarily this exact spot. Years before 2006 aren't covered by the EA's historic record. See also the Castle Bytham flood history.

Station Details

Monitoring Station: Castle Bytham
Watercourse: River Tham
Nearest Town: Castle Bytham
County: Lincolnshire
Nearest reservoir: Rutland (12.1 km) · 72.2% full (as of 7 Sep 2026)
Coordinates: 52°45'21"N 0°32'4"W (52.755941, -0.534509)
Open in: Google Maps · Apple Maps (opens your maps app)
Date Opened: 1 Jan 1998
Status: Active
Station Type: River level station

Station Reference: E4482
EA Gauge ID: E4482-level-stage-i-15_min-mASD
Parameter: Level
Unit: mASD
Typical rise rate: 1 cm/hr (p95 sustained over 90 days)
Typical data delay: ~22 min (measured reading→publication lag)
Tidal: No
Lock / structure: No
Catchment Area: Welland
Datum: 50.160m AOD
Typical Range: 0.010 – 0.990 mASD
EA Cross-check: 0.26 mASD (EA at 10 Sep 19:15)

Geographic coordinates may reflect the access point for the gauge, and not the precise location in the watercourse that it is taking readings from.

Frequently asked questions

Is the River Tham at Castle Bytham flooding today?

The current level is 0.26m, which is within the typical range of 0.01 to 0.99m. Flooding is unlikely at this level.

Is the river level rising or falling at Castle Bytham?

Based on the most recent readings, the level is currently steady. The chart above shows the last 12 hours of measurements by default (up to 7 days), updated roughly every 15 minutes.

What is a normal level for the River Tham at Castle Bytham?

The typical range at this station is 0.01m to 0.99m, based on Environment Agency historical data. Levels above 0.99m are higher than usually seen and may indicate a flood risk.

How often is this river level data updated?

Readings are taken by the Environment Agency gauge roughly every 15 minutes and FloodRadar refreshes its data continuously, so the level shown is normally less than an hour old.

Embed this gauge on your website

Free live river-level widget — ideal for parish councils, angling clubs and local sites. Updates automatically.

<iframe src="https://www.floodradar.co.uk/widget/lincolnshire-castle-bytham" width="340" height="286" style="border:none;max-width:100%;" loading="lazy" title="River level - FloodRadar"></iframe>

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