River level River Tamar at Polson Bridge

Check for flood warnings in this area

Latest recorded level 0.98m at 4:00pm Sunday 17 January 2021.

River levels at this location in the last 5 days

Now
▼

• Measured level
• When the water level reaches 3.00m here, minor flooding is possible in this area
• Highest recorded level. Hide
• Show highest recorded level

You're missing out. A graph should be visible here.
Upgrade your browser to see and use all the features of this service.

You're missing out. A graph should be visible here.

Javascript must be enabled.

Observed data

DateTime	Value	Error
2021-01-17T16:00Z	0.978	false
2021-01-17T15:45Z	0.98	false
2021-01-17T15:30Z	0.985	false
2021-01-17T15:15Z	0.987	false
2021-01-17T15:00Z	0.99	false
2021-01-17T14:45Z	0.993	false
2021-01-17T14:30Z	0.997	false
2021-01-17T14:15Z	1	false
2021-01-17T14:00Z	1.007	false
2021-01-17T13:45Z	1.014	false
2021-01-17T13:30Z	1.02	false
2021-01-17T13:15Z	1.026	false
2021-01-17T13:00Z	1.036	false
2021-01-17T12:45Z	1.047	false
2021-01-17T12:30Z	1.056	false
2021-01-17T12:15Z	1.069	false
2021-01-17T12:00Z	1.084	false
2021-01-17T11:45Z	1.098	false
2021-01-17T11:30Z	1.113	false
2021-01-17T11:15Z	1.13	false
2021-01-17T11:00Z	1.143	false
2021-01-17T10:45Z	1.157	false
2021-01-17T10:30Z	1.171	false
2021-01-17T10:15Z	1.18	false
2021-01-17T10:00Z	1.19	false
2021-01-17T09:45Z	1.198	false
2021-01-17T09:30Z	1.204	false
2021-01-17T09:15Z	1.208	false
2021-01-17T09:00Z	1.212	false
2021-01-17T08:45Z	1.216	false
2021-01-17T08:30Z	1.222	false
2021-01-17T08:15Z	1.226	false
2021-01-17T08:00Z	1.23	false
2021-01-17T07:45Z	1.235	false
2021-01-17T07:30Z	1.239	false
2021-01-17T07:15Z	1.242	false
2021-01-17T07:00Z	1.248	false
2021-01-17T06:45Z	1.252	false
2021-01-17T06:30Z	1.256	false
2021-01-17T06:15Z	1.259	false
2021-01-17T06:00Z	1.266	false
2021-01-17T05:45Z	1.271	false
2021-01-17T05:30Z	1.272	false
2021-01-17T05:15Z	1.279	false
2021-01-17T05:00Z	1.287	false
2021-01-17T04:45Z	1.288	false
2021-01-17T04:30Z	1.293	false
2021-01-17T04:15Z	1.299	false
2021-01-17T04:00Z	1.302	false
2021-01-17T03:45Z	1.307	false
2021-01-17T03:30Z	1.308	false
2021-01-17T03:15Z	1.313	false
2021-01-17T03:00Z	1.317	false
2021-01-17T02:45Z	1.319	false
2021-01-17T02:30Z	1.32	false
2021-01-17T02:15Z	1.32	false
2021-01-17T02:00Z	1.321	false
2021-01-17T01:45Z	1.322	false
2021-01-17T01:30Z	1.322	false
2021-01-17T01:15Z	1.322	false
2021-01-17T01:00Z	1.322	false
2021-01-17T00:45Z	1.323	false
2021-01-17T00:30Z	1.325	false
2021-01-17T00:15Z	1.324	false
2021-01-17T00:00Z	1.327	false
2021-01-16T23:45Z	1.332	false
2021-01-16T23:30Z	1.335	false
2021-01-16T23:15Z	1.343	false
2021-01-16T23:00Z	1.351	false
2021-01-16T22:45Z	1.357	false
2021-01-16T22:30Z	1.371	false
2021-01-16T22:15Z	1.384	false
2021-01-16T22:00Z	1.396	false
2021-01-16T21:45Z	1.416	false
2021-01-16T21:30Z	1.44	false
2021-01-16T21:15Z	1.465	false
2021-01-16T21:00Z	1.492	false
2021-01-16T20:45Z	1.521	false
2021-01-16T20:30Z	1.551	false
2021-01-16T20:15Z	1.574	false
2021-01-16T20:00Z	1.603	false
2021-01-16T19:45Z	1.62	false
2021-01-16T19:30Z	1.645	false
2021-01-16T19:15Z	1.661	false
2021-01-16T19:00Z	1.68	false
2021-01-16T18:45Z	1.691	false
2021-01-16T18:30Z	1.707	false
2021-01-16T18:15Z	1.717	false
2021-01-16T18:00Z	1.737	false
2021-01-16T17:45Z	1.749	false
2021-01-16T17:30Z	1.766	false
2021-01-16T17:15Z	1.781	false
2021-01-16T17:00Z	1.797	false
2021-01-16T16:45Z	1.816	false
2021-01-16T16:30Z	1.835	false
2021-01-16T16:15Z	1.849	false
2021-01-16T16:00Z	1.88	false
2021-01-16T15:45Z	1.908	false
2021-01-16T15:30Z	1.935	false
2021-01-16T15:15Z	1.967	false
2021-01-16T15:00Z	2.009	false
2021-01-16T14:45Z	2.031	false
2021-01-16T14:30Z	2.061	false
2021-01-16T14:15Z	2.083	false
2021-01-16T14:00Z	2.102	false
2021-01-16T13:45Z	2.116	false
2021-01-16T13:30Z	2.125	false
2021-01-16T13:15Z	2.13	false
2021-01-16T13:00Z	2.135	false
2021-01-16T12:45Z	2.132	false
2021-01-16T12:30Z	2.13	false
2021-01-16T12:15Z	2.134	false
2021-01-16T12:00Z	2.126	false
2021-01-16T11:45Z	2.111	false
2021-01-16T11:30Z	2.095	false
2021-01-16T11:15Z	2.085	false
2021-01-16T11:00Z	2.062	false
2021-01-16T10:45Z	2.039	false
2021-01-16T10:30Z	2.011	false
2021-01-16T10:15Z	1.976	false
2021-01-16T10:00Z	1.939	false
2021-01-16T09:45Z	1.895	false
2021-01-16T09:30Z	1.856	false
2021-01-16T09:15Z	1.81	false
2021-01-16T09:00Z	1.756	false
2021-01-16T08:45Z	1.707	false
2021-01-16T08:30Z	1.66	false
2021-01-16T08:15Z	1.607	false
2021-01-16T08:00Z	1.555	false
2021-01-16T07:45Z	1.497	false
2021-01-16T07:30Z	1.443	false
2021-01-16T07:15Z	1.39	false
2021-01-16T07:00Z	1.328	false
2021-01-16T06:45Z	1.271	false
2021-01-16T06:30Z	1.217	false
2021-01-16T06:15Z	1.159	false
2021-01-16T06:00Z	1.109	false
2021-01-16T05:45Z	1.066	false
2021-01-16T05:30Z	1.03	false
2021-01-16T05:15Z	1.004	false
2021-01-16T05:00Z	0.984	false
2021-01-16T04:45Z	0.972	false
2021-01-16T04:30Z	0.957	false
2021-01-16T04:15Z	0.943	false
2021-01-16T04:00Z	0.931	false
2021-01-16T03:45Z	0.916	false
2021-01-16T03:30Z	0.905	false
2021-01-16T03:15Z	0.896	false
2021-01-16T03:00Z	0.892	false
2021-01-16T02:45Z	0.886	false
2021-01-16T02:30Z	0.881	false
2021-01-16T02:15Z	0.879	false
2021-01-16T02:00Z	0.874	false
2021-01-16T01:45Z	0.874	false
2021-01-16T01:30Z	0.874	false
2021-01-16T01:15Z	0.873	false
2021-01-16T01:00Z	0.875	false
2021-01-16T00:45Z	0.874	false
2021-01-16T00:30Z	0.874	false
2021-01-16T00:15Z	0.874	false
2021-01-16T00:00Z	0.875	false
2021-01-15T23:45Z	0.875	false
2021-01-15T23:30Z	0.876	false
2021-01-15T23:15Z	0.876	false
2021-01-15T23:00Z	0.877	false
2021-01-15T22:45Z	0.879	false
2021-01-15T22:30Z	0.879	false
2021-01-15T22:15Z	0.881	false
2021-01-15T22:00Z	0.881	false
2021-01-15T21:45Z	0.882	false
2021-01-15T21:30Z	0.884	false
2021-01-15T21:15Z	0.885	false
2021-01-15T21:00Z	0.887	false
2021-01-15T20:45Z	0.888	false
2021-01-15T20:30Z	0.89	false
2021-01-15T20:15Z	0.891	false
2021-01-15T20:00Z	0.892	false
2021-01-15T19:45Z	0.893	false
2021-01-15T19:30Z	0.895	false
2021-01-15T19:15Z	0.896	false
2021-01-15T19:00Z	0.897	false
2021-01-15T18:45Z	0.898	false
2021-01-15T18:30Z	0.9	false
2021-01-15T18:15Z	0.902	false
2021-01-15T18:00Z	0.903	false
2021-01-15T17:45Z	0.904	false
2021-01-15T17:30Z	0.906	false
2021-01-15T17:15Z	0.907	false
2021-01-15T17:00Z	0.908	false
2021-01-15T16:45Z	0.909	false
2021-01-15T16:30Z	0.911	false
2021-01-15T16:15Z	0.913	false
2021-01-15T16:00Z	0.914	false
2021-01-15T15:45Z	0.915	false
2021-01-15T15:30Z	0.918	false
2021-01-15T15:15Z	0.92	false
2021-01-15T15:00Z	0.921	false
2021-01-15T14:45Z	0.922	false
2021-01-15T14:30Z	0.924	false
2021-01-15T14:15Z	0.925	false
2021-01-15T14:00Z	0.928	false
2021-01-15T13:45Z	0.93	false
2021-01-15T13:30Z	0.932	false
2021-01-15T13:15Z	0.934	false
2021-01-15T13:00Z	0.936	false
2021-01-15T12:45Z	0.938	false
2021-01-15T12:30Z	0.94	false
2021-01-15T12:15Z	0.943	false
2021-01-15T12:00Z	0.945	false
2021-01-15T11:45Z	0.947	false
2021-01-15T11:30Z	0.948	false
2021-01-15T11:15Z	0.952	false
2021-01-15T11:00Z	0.955	false
2021-01-15T10:45Z	0.957	false
2021-01-15T10:30Z	0.958	false
2021-01-15T10:15Z	0.959	false
2021-01-15T10:00Z	0.964	false
2021-01-15T09:45Z	0.966	false
2021-01-15T09:30Z	0.971	false
2021-01-15T09:15Z	0.972	false
2021-01-15T09:00Z	0.975	false
2021-01-15T08:45Z	0.979	false
2021-01-15T08:30Z	0.98	false
2021-01-15T08:15Z	0.984	false
2021-01-15T08:00Z	0.987	false
2021-01-15T07:45Z	0.99	false
2021-01-15T07:30Z	0.993	false
2021-01-15T07:15Z	0.996	false
2021-01-15T07:00Z	1	false
2021-01-15T06:45Z	1.002	false
2021-01-15T06:30Z	1.007	false
2021-01-15T06:15Z	1.01	false
2021-01-15T06:00Z	1.014	false
2021-01-15T05:45Z	1.018	false
2021-01-15T05:30Z	1.022	false
2021-01-15T05:15Z	1.024	false
2021-01-15T05:00Z	1.03	false
2021-01-15T04:45Z	1.035	false
2021-01-15T04:30Z	1.039	false
2021-01-15T04:15Z	1.042	false
2021-01-15T04:00Z	1.048	false
2021-01-15T03:45Z	1.05	false
2021-01-15T03:30Z	1.058	false
2021-01-15T03:15Z	1.063	false
2021-01-15T03:00Z	1.069	false
2021-01-15T02:45Z	1.075	false
2021-01-15T02:30Z	1.081	false
2021-01-15T02:15Z	1.087	false
2021-01-15T02:00Z	1.092	false
2021-01-15T01:45Z	1.1	false
2021-01-15T01:30Z	1.106	false
2021-01-15T01:15Z	1.114	false
2021-01-15T01:00Z	1.119	false
2021-01-15T00:45Z	1.126	false
2021-01-15T00:30Z	1.133	false
2021-01-15T00:15Z	1.137	false
2021-01-15T00:00Z	1.145	false
2021-01-14T23:45Z	1.151	false
2021-01-14T23:30Z	1.156	false
2021-01-14T23:15Z	1.159	false
2021-01-14T23:00Z	1.165	false
2021-01-14T22:45Z	1.166	false
2021-01-14T22:30Z	1.175	false
2021-01-14T22:15Z	1.18	false
2021-01-14T22:00Z	1.183	false
2021-01-14T21:45Z	1.188	false
2021-01-14T21:30Z	1.193	false
2021-01-14T21:15Z	1.195	false
2021-01-14T21:00Z	1.203	false
2021-01-14T20:45Z	1.207	false
2021-01-14T20:30Z	1.215	false
2021-01-14T20:15Z	1.218	false
2021-01-14T20:00Z	1.224	false
2021-01-14T19:45Z	1.23	false
2021-01-14T19:30Z	1.238	false
2021-01-14T19:15Z	1.245	false
2021-01-14T19:00Z	1.255	false
2021-01-14T18:45Z	1.264	false
2021-01-14T18:30Z	1.272	false
2021-01-14T18:15Z	1.286	false
2021-01-14T18:00Z	1.299	false
2021-01-14T17:45Z	1.312	false
2021-01-14T17:30Z	1.327	false
2021-01-14T17:15Z	1.338	false
2021-01-14T17:00Z	1.355	false
2021-01-14T16:45Z	1.369	false
2021-01-14T16:30Z	1.386	false
2021-01-14T16:15Z	1.401	false
2021-01-14T16:00Z	1.417	false
2021-01-14T15:45Z	1.431	false
2021-01-14T15:30Z	1.447	false
2021-01-14T15:15Z	1.459	false
2021-01-14T15:00Z	1.478	false
2021-01-14T14:45Z	1.491	false
2021-01-14T14:30Z	1.507	false
2021-01-14T14:15Z	1.519	false
2021-01-14T14:00Z	1.532	false
2021-01-14T13:45Z	1.542	false
2021-01-14T13:30Z	1.556	false
2021-01-14T13:15Z	1.567	false
2021-01-14T13:00Z	1.569	false
2021-01-14T12:45Z	1.576	false
2021-01-14T12:30Z	1.582	false
2021-01-14T12:15Z	1.578	false
2021-01-14T12:00Z	1.581	false
2021-01-14T11:45Z	1.569	false
2021-01-14T11:30Z	1.56	false
2021-01-14T11:15Z	1.547	false
2021-01-14T11:00Z	1.535	false
2021-01-14T10:45Z	1.51	false
2021-01-14T10:30Z	1.489	false
2021-01-14T10:15Z	1.461	false
2021-01-14T10:00Z	1.434	false
2021-01-14T09:45Z	1.405	false
2021-01-14T09:30Z	1.379	false
2021-01-14T09:15Z	1.353	false
2021-01-14T09:00Z	1.328	false
2021-01-14T08:45Z	1.308	false
2021-01-14T08:30Z	1.289	false
2021-01-14T08:15Z	1.271	false
2021-01-14T08:00Z	1.259	false
2021-01-14T07:45Z	1.246	false
2021-01-14T07:30Z	1.23	false
2021-01-14T07:15Z	1.223	false
2021-01-14T07:00Z	1.213	false
2021-01-14T06:45Z	1.211	false
2021-01-14T06:30Z	1.205	false
2021-01-14T06:15Z	1.202	false
2021-01-14T06:00Z	1.199	false
2021-01-14T05:45Z	1.198	false
2021-01-14T05:30Z	1.196	false
2021-01-14T05:15Z	1.195	false
2021-01-14T05:00Z	1.192	false
2021-01-14T04:45Z	1.189	false
2021-01-14T04:30Z	1.188	false
2021-01-14T04:15Z	1.185	false
2021-01-14T04:00Z	1.184	false
2021-01-14T03:45Z	1.183	false
2021-01-14T03:30Z	1.181	false
2021-01-14T03:15Z	1.18	false
2021-01-14T03:00Z	1.179	false
2021-01-14T02:45Z	1.177	false
2021-01-14T02:30Z	1.172	false
2021-01-14T02:15Z	1.171	false
2021-01-14T02:00Z	1.167	false
2021-01-14T01:45Z	1.163	false
2021-01-14T01:30Z	1.161	false
2021-01-14T01:15Z	1.157	false
2021-01-14T01:00Z	1.156	false
2021-01-14T00:45Z	1.156	false
2021-01-14T00:30Z	1.156	false
2021-01-14T00:15Z	1.156	false
2021-01-14T00:00Z	1.156	false
2021-01-13T23:45Z	1.159	false
2021-01-13T23:30Z	1.161	false
2021-01-13T23:15Z	1.162	false
2021-01-13T23:00Z	1.17	false
2021-01-13T22:45Z	1.171	false
2021-01-13T22:30Z	1.18	false
2021-01-13T22:15Z	1.184	false
2021-01-13T22:00Z	1.191	false
2021-01-13T21:45Z	1.199	false
2021-01-13T21:30Z	1.206	false
2021-01-13T21:15Z	1.211	false
2021-01-13T21:00Z	1.218	false
2021-01-13T20:45Z	1.229	false
2021-01-13T20:30Z	1.236	false
2021-01-13T20:15Z	1.245	false
2021-01-13T20:00Z	1.255	false
2021-01-13T19:45Z	1.264	false
2021-01-13T19:30Z	1.271	false
2021-01-13T19:15Z	1.28	false
2021-01-13T19:00Z	1.292	false
2021-01-13T18:45Z	1.293	false
2021-01-13T18:30Z	1.306	false
2021-01-13T18:15Z	1.311	false
2021-01-13T18:00Z	1.322	false
2021-01-13T17:45Z	1.325	false
2021-01-13T17:30Z	1.341	false
2021-01-13T17:15Z	1.348	false
2021-01-13T17:00Z	1.361	false
2021-01-13T16:45Z	1.367	false
2021-01-13T16:30Z	1.38	false
2021-01-13T16:15Z	1.39	false
2021-01-13T16:00Z	1.401	false
2021-01-13T15:45Z	1.416	false
2021-01-13T15:30Z	1.425	false
2021-01-13T15:15Z	1.436	false
2021-01-13T15:00Z	1.446	false
2021-01-13T14:45Z	1.459	false
2021-01-13T14:30Z	1.468	false
2021-01-13T14:15Z	1.476	false
2021-01-13T14:00Z	1.484	false
2021-01-13T13:45Z	1.493	false
2021-01-13T13:30Z	1.495	false
2021-01-13T13:15Z	1.503	false
2021-01-13T13:00Z	1.512	false
2021-01-13T12:45Z	1.518	false
2021-01-13T12:30Z	1.523	false
2021-01-13T12:15Z	1.527	false
2021-01-13T12:00Z	1.531	false
2021-01-13T11:45Z	1.542	false
2021-01-13T11:30Z	1.548	false
2021-01-13T11:15Z	1.549	false
2021-01-13T11:00Z	1.567	false
2021-01-13T10:45Z	1.567	false
2021-01-13T10:30Z	1.572	false
2021-01-13T10:15Z	1.577	false
2021-01-13T10:00Z	1.582	false
2021-01-13T09:45Z	1.588	false
2021-01-13T09:30Z	1.591	false
2021-01-13T09:15Z	1.592	false
2021-01-13T09:00Z	1.591	false
2021-01-13T08:45Z	1.586	false
2021-01-13T08:30Z	1.589	false
2021-01-13T08:15Z	1.588	false
2021-01-13T08:00Z	1.584	false
2021-01-13T07:45Z	1.583	false
2021-01-13T07:30Z	1.579	false
2021-01-13T07:15Z	1.575	false
2021-01-13T07:00Z	1.568	false
2021-01-13T06:45Z	1.563	false
2021-01-13T06:30Z	1.564	false
2021-01-13T06:15Z	1.555	false
2021-01-13T06:00Z	1.543	false
2021-01-13T05:45Z	1.535	false
2021-01-13T05:30Z	1.528	false
2021-01-13T05:15Z	1.519	false
2021-01-13T05:00Z	1.511	false
2021-01-13T04:45Z	1.504	false
2021-01-13T04:30Z	1.491	false
2021-01-13T04:15Z	1.48	false
2021-01-13T04:00Z	1.471	false
2021-01-13T03:45Z	1.459	false
2021-01-13T03:30Z	1.449	false
2021-01-13T03:15Z	1.434	false
2021-01-13T03:00Z	1.425	false
2021-01-13T02:45Z	1.412	false
2021-01-13T02:30Z	1.403	false
2021-01-13T02:15Z	1.404	false
2021-01-13T02:00Z	1.392	false
2021-01-13T01:45Z	1.388	false
2021-01-13T01:30Z	1.382	false
2021-01-13T01:15Z	1.38	false
2021-01-13T01:00Z	1.376	false
2021-01-13T00:45Z	1.376	false
2021-01-13T00:30Z	1.37	false
2021-01-13T00:15Z	1.369	false
2021-01-13T00:00Z	1.368	false
2021-01-12T23:45Z	1.364	false
2021-01-12T23:30Z	1.361	false
2021-01-12T23:15Z	1.358	false
2021-01-12T23:00Z	1.357	false
2021-01-12T22:45Z	1.345	false
2021-01-12T22:30Z	1.339	false
2021-01-12T22:15Z	1.326	false
2021-01-12T22:00Z	1.312	false
2021-01-12T21:45Z	1.301	false
2021-01-12T21:30Z	1.279	false
2021-01-12T21:15Z	1.257	false
2021-01-12T21:00Z	1.235	false
2021-01-12T20:45Z	1.213	false
2021-01-12T20:30Z	1.188	false
2021-01-12T20:15Z	1.166	false
2021-01-12T20:00Z	1.142	false
2021-01-12T19:45Z	1.118	false
2021-01-12T19:30Z	1.093	false
2021-01-12T19:15Z	1.069	false
2021-01-12T19:00Z	1.041	false
2021-01-12T18:45Z	1.017	false
2021-01-12T18:30Z	0.994	false
2021-01-12T18:15Z	0.97	false
2021-01-12T18:00Z	0.95	false
2021-01-12T17:45Z	0.934	false
2021-01-12T17:30Z	0.92	false
2021-01-12T17:15Z	0.906	false
2021-01-12T17:00Z	0.893	false
2021-01-12T16:45Z	0.882	false
2021-01-12T16:30Z	0.869	false
2021-01-12T16:15Z	0.861	false

Forecast data

Key information

• Station name: Polson Bridge
• Station ID: 3203
• River name: River Tamar
• Typical range: 0.23m to 3.00m
• Highest level on record: 5.35m on 19 December 1999
• Site datum: 48.10mAOD (what does this mean?)

How are river levels measured?

The Environment agency uses a network of monitoring stations across the country. Each one has its own datum - a height in metres fixed relative to mean sea level. This height is expressed as metres above ordnance datum (mAOD). The river levels we provide for each monitoring station are all relative to its site datum.

If we didn't do this, we'd show some very high measurements, which could cause confusion. By using a local site datum, the river levels are easier to understand, especially by users familiar with the data from a particular monitoring station.

A river's height above ordnance datum can be seen by adding the site datum to the river level.

How often are river levels measured?

We use measuring stations like this one to collect water level data, usually once or twice a day. We collect data more frequently when there's a greater risk of flooding. That's why the graph might show a short time lag since the last measurement.

How might river levels affect flood risk?

Typical range

This is the usual range of river levels at this station, based on historical data.

Above typical

This means that flooding is possible because river levels at this station are currently higher than usual.
Many factors can influence the possibility of flooding - river levels are only one indicator. Always check if there's a flood warning in place at a particular location.

Below typical

This means that river levels at this station are currently lower than usual.
Drought or water management measures may be in place. Please check for the latest information on water resources and restrictions in your area.

• View nearby measuring stations

• View the flood information service for England
• Check the long term flood risk for an area in England.

Share this page

• Twitter
• Facebook
• Email