River level River Tamar at Polson Bridge

Check for flood warnings in this area

Latest recorded level 0.68m at 4:00am Tuesday 22 January 2019.

River levels at this location in the last 5 days

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

DateTime	Value	Error
2019-01-22T04:00Z	0.681	false
2019-01-22T03:45Z	0.673	false
2019-01-22T03:30Z	0.67	false
2019-01-22T03:15Z	0.666	false
2019-01-22T03:00Z	0.662	false
2019-01-22T02:45Z	0.659	false
2019-01-22T02:30Z	0.656	false
2019-01-22T02:15Z	0.653	false
2019-01-22T02:00Z	0.651	false
2019-01-22T01:45Z	0.65	false
2019-01-22T01:30Z	0.646	false
2019-01-22T01:15Z	0.644	false
2019-01-22T01:00Z	0.644	false
2019-01-22T00:45Z	0.642	false
2019-01-22T00:30Z	0.641	false
2019-01-22T00:15Z	0.643	false
2019-01-22T00:00Z	0.644	false
2019-01-21T23:45Z	0.644	false
2019-01-21T23:30Z	0.643	false
2019-01-21T23:15Z	0.641	false
2019-01-21T23:00Z	0.638	false
2019-01-21T22:45Z	0.635	false
2019-01-21T22:30Z	0.632	false
2019-01-21T22:15Z	0.632	false
2019-01-21T22:00Z	0.628	false
2019-01-21T21:45Z	0.628	false
2019-01-21T21:30Z	0.628	false
2019-01-21T21:15Z	0.626	false
2019-01-21T21:00Z	0.626	false
2019-01-21T20:45Z	0.626	false
2019-01-21T20:30Z	0.626	false
2019-01-21T20:15Z	0.625	false
2019-01-21T20:00Z	0.626	false
2019-01-21T19:45Z	0.626	false
2019-01-21T19:30Z	0.626	false
2019-01-21T19:15Z	0.625	false
2019-01-21T19:00Z	0.627	false
2019-01-21T18:45Z	0.626	false
2019-01-21T18:30Z	0.626	false
2019-01-21T18:15Z	0.626	false
2019-01-21T18:00Z	0.626	false
2019-01-21T17:45Z	0.627	false
2019-01-21T17:30Z	0.628	false
2019-01-21T17:15Z	0.628	false
2019-01-21T17:00Z	0.627	false
2019-01-21T16:45Z	0.628	false
2019-01-21T16:30Z	0.627	false
2019-01-21T16:15Z	0.627	false
2019-01-21T16:00Z	0.628	false
2019-01-21T15:45Z	0.628	false
2019-01-21T15:30Z	0.628	false
2019-01-21T15:15Z	0.629	false
2019-01-21T15:00Z	0.629	false
2019-01-21T14:45Z	0.629	false
2019-01-21T14:30Z	0.629	false
2019-01-21T14:15Z	0.63	false
2019-01-21T14:00Z	0.63	false
2019-01-21T13:45Z	0.63	false
2019-01-21T13:30Z	0.63	false
2019-01-21T13:15Z	0.631	false
2019-01-21T13:00Z	0.632	false
2019-01-21T12:45Z	0.631	false
2019-01-21T12:30Z	0.633	false
2019-01-21T12:15Z	0.633	false
2019-01-21T12:00Z	0.633	false
2019-01-21T11:45Z	0.634	false
2019-01-21T11:30Z	0.633	false
2019-01-21T11:15Z	0.635	false
2019-01-21T11:00Z	0.635	false
2019-01-21T10:45Z	0.635	false
2019-01-21T10:30Z	0.635	false
2019-01-21T10:15Z	0.636	false
2019-01-21T10:00Z	0.636	false
2019-01-21T09:45Z	0.637	false
2019-01-21T09:30Z	0.638	false
2019-01-21T09:15Z	0.638	false
2019-01-21T09:00Z	0.638	false
2019-01-21T08:45Z	0.638	false
2019-01-21T08:30Z	0.639	false
2019-01-21T08:15Z	0.639	false
2019-01-21T08:00Z	0.64	false
2019-01-21T07:45Z	0.639	false
2019-01-21T07:30Z	0.64	false
2019-01-21T07:15Z	0.641	false
2019-01-21T07:00Z	0.642	false
2019-01-21T06:45Z	0.642	false
2019-01-21T06:30Z	0.643	false
2019-01-21T06:15Z	0.643	false
2019-01-21T06:00Z	0.642	false
2019-01-21T05:45Z	0.643	false
2019-01-21T05:30Z	0.644	false
2019-01-21T05:15Z	0.644	false
2019-01-21T05:00Z	0.646	false
2019-01-21T04:45Z	0.646	false
2019-01-21T04:30Z	0.646	false
2019-01-21T04:15Z	0.647	false
2019-01-21T04:00Z	0.647	false
2019-01-21T03:45Z	0.648	false
2019-01-21T03:30Z	0.649	false
2019-01-21T03:15Z	0.649	false
2019-01-21T03:00Z	0.649	false
2019-01-21T02:45Z	0.65	false
2019-01-21T02:30Z	0.651	false
2019-01-21T02:15Z	0.654	false
2019-01-21T02:00Z	0.652	false
2019-01-21T01:45Z	0.652	false
2019-01-21T01:30Z	0.653	false
2019-01-21T01:15Z	0.653	false
2019-01-21T01:00Z	0.654	false
2019-01-21T00:45Z	0.655	false
2019-01-21T00:30Z	0.656	false
2019-01-21T00:15Z	0.657	false
2019-01-21T00:00Z	0.657	false
2019-01-20T23:45Z	0.658	false
2019-01-20T23:30Z	0.66	false
2019-01-20T23:15Z	0.66	false
2019-01-20T23:00Z	0.66	false
2019-01-20T22:45Z	0.661	false
2019-01-20T22:30Z	0.663	false
2019-01-20T22:15Z	0.663	false
2019-01-20T22:00Z	0.664	false
2019-01-20T21:45Z	0.665	false
2019-01-20T21:30Z	0.666	false
2019-01-20T21:15Z	0.665	false
2019-01-20T21:00Z	0.667	false
2019-01-20T20:45Z	0.668	false
2019-01-20T20:30Z	0.669	false
2019-01-20T20:15Z	0.669	false
2019-01-20T20:00Z	0.67	false
2019-01-20T19:45Z	0.67	false
2019-01-20T19:30Z	0.671	false
2019-01-20T19:15Z	0.672	false
2019-01-20T19:00Z	0.673	false
2019-01-20T18:45Z	0.673	false
2019-01-20T18:30Z	0.674	false
2019-01-20T18:15Z	0.674	false
2019-01-20T18:00Z	0.676	false
2019-01-20T17:45Z	0.677	false
2019-01-20T17:30Z	0.678	false
2019-01-20T17:15Z	0.68	false
2019-01-20T17:00Z	0.68	false
2019-01-20T16:45Z	0.679	false
2019-01-20T16:30Z	0.682	false
2019-01-20T16:15Z	0.683	false
2019-01-20T16:00Z	0.684	false
2019-01-20T15:45Z	0.685	false
2019-01-20T15:30Z	0.686	false
2019-01-20T15:15Z	0.686	false
2019-01-20T15:00Z	0.687	false
2019-01-20T14:45Z	0.687	false
2019-01-20T14:30Z	0.689	false
2019-01-20T14:15Z	0.69	false
2019-01-20T14:00Z	0.691	false
2019-01-20T13:45Z	0.692	false
2019-01-20T13:30Z	0.693	false
2019-01-20T13:15Z	0.693	false
2019-01-20T13:00Z	0.694	false
2019-01-20T12:45Z	0.695	false
2019-01-20T12:30Z	0.696	false
2019-01-20T12:15Z	0.699	false
2019-01-20T12:00Z	0.698	false
2019-01-20T11:45Z	0.7	false
2019-01-20T11:30Z	0.702	false
2019-01-20T11:15Z	0.703	false
2019-01-20T11:00Z	0.705	false
2019-01-20T10:45Z	0.706	false
2019-01-20T10:30Z	0.708	false
2019-01-20T10:15Z	0.709	false
2019-01-20T10:00Z	0.71	false
2019-01-20T09:45Z	0.711	false
2019-01-20T09:30Z	0.712	false
2019-01-20T09:15Z	0.715	false
2019-01-20T09:00Z	0.716	false
2019-01-20T08:45Z	0.718	false
2019-01-20T08:30Z	0.72	false
2019-01-20T08:15Z	0.721	false
2019-01-20T08:00Z	0.723	false
2019-01-20T07:45Z	0.725	false
2019-01-20T07:30Z	0.727	false
2019-01-20T07:15Z	0.729	false
2019-01-20T07:00Z	0.733	false
2019-01-20T06:45Z	0.734	false
2019-01-20T06:30Z	0.736	false
2019-01-20T06:15Z	0.739	false
2019-01-20T06:00Z	0.741	false
2019-01-20T05:45Z	0.744	false
2019-01-20T05:30Z	0.747	false
2019-01-20T05:15Z	0.75	false
2019-01-20T05:00Z	0.753	false
2019-01-20T04:45Z	0.756	false
2019-01-20T04:30Z	0.76	false
2019-01-20T04:15Z	0.764	false
2019-01-20T04:00Z	0.765	false
2019-01-20T03:45Z	0.77	false
2019-01-20T03:30Z	0.773	false
2019-01-20T03:15Z	0.775	false
2019-01-20T03:00Z	0.78	false
2019-01-20T02:45Z	0.784	false
2019-01-20T02:30Z	0.788	false
2019-01-20T02:15Z	0.793	false
2019-01-20T02:00Z	0.795	false
2019-01-20T01:45Z	0.799	false
2019-01-20T01:30Z	0.804	false
2019-01-20T01:15Z	0.807	false
2019-01-20T01:00Z	0.809	false
2019-01-20T00:45Z	0.815	false
2019-01-20T00:30Z	0.818	false
2019-01-20T00:15Z	0.821	false
2019-01-20T00:00Z	0.826	false
2019-01-19T23:45Z	0.83	false
2019-01-19T23:30Z	0.833	false
2019-01-19T23:15Z	0.839	false
2019-01-19T23:00Z	0.843	false
2019-01-19T22:45Z	0.845	false
2019-01-19T22:30Z	0.848	false
2019-01-19T22:15Z	0.852	false
2019-01-19T22:00Z	0.857	false
2019-01-19T21:45Z	0.859	false
2019-01-19T21:30Z	0.861	false
2019-01-19T21:15Z	0.864	false
2019-01-19T21:00Z	0.869	false
2019-01-19T20:45Z	0.873	false
2019-01-19T20:30Z	0.875	false
2019-01-19T20:15Z	0.874	false
2019-01-19T20:00Z	0.878	false
2019-01-19T19:45Z	0.882	false
2019-01-19T19:30Z	0.885	false
2019-01-19T19:15Z	0.89	false
2019-01-19T19:00Z	0.891	false
2019-01-19T18:45Z	0.89	false
2019-01-19T18:30Z	0.892	false
2019-01-19T18:15Z	0.892	false
2019-01-19T18:00Z	0.893	false
2019-01-19T17:45Z	0.892	false
2019-01-19T17:30Z	0.89	false
2019-01-19T17:15Z	0.887	false
2019-01-19T17:00Z	0.879	false
2019-01-19T16:45Z	0.876	false
2019-01-19T16:30Z	0.867	false
2019-01-19T16:15Z	0.855	false
2019-01-19T16:00Z	0.845	false
2019-01-19T15:45Z	0.829	false
2019-01-19T15:30Z	0.814	false
2019-01-19T15:15Z	0.798	false
2019-01-19T15:00Z	0.782	false
2019-01-19T14:45Z	0.767	false
2019-01-19T14:30Z	0.752	false
2019-01-19T14:15Z	0.742	false
2019-01-19T14:00Z	0.731	false
2019-01-19T13:45Z	0.721	false
2019-01-19T13:30Z	0.711	false
2019-01-19T13:15Z	0.701	false
2019-01-19T13:00Z	0.693	false
2019-01-19T12:45Z	0.686	false
2019-01-19T12:30Z	0.68	false
2019-01-19T12:15Z	0.675	false
2019-01-19T12:00Z	0.672	false
2019-01-19T11:45Z	0.667	false
2019-01-19T11:30Z	0.665	false
2019-01-19T11:15Z	0.661	false
2019-01-19T11:00Z	0.659	false
2019-01-19T10:45Z	0.658	false
2019-01-19T10:30Z	0.657	false
2019-01-19T10:15Z	0.656	false
2019-01-19T10:00Z	0.655	false
2019-01-19T09:45Z	0.655	false
2019-01-19T09:30Z	0.655	false
2019-01-19T09:15Z	0.655	false
2019-01-19T09:00Z	0.657	false
2019-01-19T08:45Z	0.657	false
2019-01-19T08:30Z	0.655	false
2019-01-19T08:15Z	0.656	false
2019-01-19T08:00Z	0.657	false
2019-01-19T07:45Z	0.657	false
2019-01-19T07:30Z	0.659	false
2019-01-19T07:15Z	0.661	false
2019-01-19T07:00Z	0.662	false
2019-01-19T06:45Z	0.665	false
2019-01-19T06:30Z	0.666	false
2019-01-19T06:15Z	0.667	false
2019-01-19T06:00Z	0.668	false
2019-01-19T05:45Z	0.671	false
2019-01-19T05:30Z	0.674	false
2019-01-19T05:15Z	0.677	false
2019-01-19T05:00Z	0.679	false
2019-01-19T04:45Z	0.681	false
2019-01-19T04:30Z	0.683	false
2019-01-19T04:15Z	0.687	false
2019-01-19T04:00Z	0.689	false
2019-01-19T03:45Z	0.691	false
2019-01-19T03:30Z	0.695	false
2019-01-19T03:15Z	0.698	false
2019-01-19T03:00Z	0.7	false
2019-01-19T02:45Z	0.703	false
2019-01-19T02:30Z	0.706	false
2019-01-19T02:15Z	0.709	false
2019-01-19T02:00Z	0.714	false
2019-01-19T01:45Z	0.716	false
2019-01-19T01:30Z	0.719	false
2019-01-19T01:15Z	0.722	false
2019-01-19T01:00Z	0.725	false
2019-01-19T00:45Z	0.727	false
2019-01-19T00:30Z	0.727	false
2019-01-19T00:15Z	0.726	false
2019-01-19T00:00Z	0.723	false
2019-01-18T23:45Z	0.719	false
2019-01-18T23:30Z	0.713	false
2019-01-18T23:15Z	0.707	false
2019-01-18T23:00Z	0.699	false
2019-01-18T22:45Z	0.691	false
2019-01-18T22:30Z	0.683	false
2019-01-18T22:15Z	0.675	false
2019-01-18T22:00Z	0.669	false
2019-01-18T21:45Z	0.663	false
2019-01-18T21:30Z	0.659	false
2019-01-18T21:15Z	0.656	false
2019-01-18T21:00Z	0.653	false
2019-01-18T20:45Z	0.648	false
2019-01-18T20:30Z	0.643	false
2019-01-18T20:15Z	0.638	false
2019-01-18T20:00Z	0.634	false
2019-01-18T19:45Z	0.63	false
2019-01-18T19:30Z	0.628	false
2019-01-18T19:15Z	0.622	false
2019-01-18T19:00Z	0.62	false
2019-01-18T18:45Z	0.615	false
2019-01-18T18:30Z	0.61	false
2019-01-18T18:15Z	0.605	false
2019-01-18T18:00Z	0.601	false
2019-01-18T17:45Z	0.594	false
2019-01-18T17:30Z	0.589	false
2019-01-18T17:15Z	0.586	false
2019-01-18T17:00Z	0.583	false
2019-01-18T16:45Z	0.58	false
2019-01-18T16:30Z	0.578	false
2019-01-18T16:15Z	0.578	false
2019-01-18T16:00Z	0.574	false
2019-01-18T15:45Z	0.573	false
2019-01-18T15:30Z	0.566	false
2019-01-18T15:15Z	0.561	false
2019-01-18T15:00Z	0.558	false
2019-01-18T14:45Z	0.557	false
2019-01-18T14:30Z	0.555	false
2019-01-18T14:15Z	0.554	false
2019-01-18T14:00Z	0.552	false
2019-01-18T13:45Z	0.549	false
2019-01-18T13:30Z	0.549	false
2019-01-18T13:15Z	0.549	false
2019-01-18T13:00Z	0.547	false
2019-01-18T12:45Z	0.547	false
2019-01-18T12:30Z	0.545	false
2019-01-18T12:15Z	0.545	false
2019-01-18T12:00Z	0.542	false
2019-01-18T11:45Z	0.543	false
2019-01-18T11:30Z	0.542	false
2019-01-18T11:15Z	0.542	false
2019-01-18T11:00Z	0.541	false
2019-01-18T10:45Z	0.543	false
2019-01-18T10:30Z	0.542	false
2019-01-18T10:15Z	0.541	false
2019-01-18T10:00Z	0.542	false
2019-01-18T09:45Z	0.543	false
2019-01-18T09:30Z	0.544	false
2019-01-18T09:15Z	0.543	false
2019-01-18T09:00Z	0.543	false
2019-01-18T08:45Z	0.545	false
2019-01-18T08:30Z	0.545	false
2019-01-18T08:15Z	0.546	false
2019-01-18T08:00Z	0.546	false
2019-01-18T07:45Z	0.547	false
2019-01-18T07:30Z	0.548	false
2019-01-18T07:15Z	0.547	false
2019-01-18T07:00Z	0.548	false
2019-01-18T06:45Z	0.548	false
2019-01-18T06:30Z	0.549	false
2019-01-18T06:15Z	0.549	false
2019-01-18T06:00Z	0.55	false
2019-01-18T05:45Z	0.55	false
2019-01-18T05:30Z	0.551	false
2019-01-18T05:15Z	0.551	false
2019-01-18T05:00Z	0.552	false
2019-01-18T04:45Z	0.553	false
2019-01-18T04:30Z	0.554	false
2019-01-18T04:15Z	0.554	false
2019-01-18T04:00Z	0.556	false
2019-01-18T03:45Z	0.556	false
2019-01-18T03:30Z	0.557	false
2019-01-18T03:15Z	0.558	false
2019-01-18T03:00Z	0.559	false
2019-01-18T02:45Z	0.56	false
2019-01-18T02:30Z	0.562	false
2019-01-18T02:15Z	0.562	false
2019-01-18T02:00Z	0.563	false
2019-01-18T01:45Z	0.564	false
2019-01-18T01:30Z	0.565	false
2019-01-18T01:15Z	0.567	false
2019-01-18T01:00Z	0.567	false
2019-01-18T00:45Z	0.568	false
2019-01-18T00:30Z	0.569	false
2019-01-18T00:15Z	0.57	false
2019-01-18T00:00Z	0.571	false
2019-01-17T23:45Z	0.573	false
2019-01-17T23:30Z	0.575	false
2019-01-17T23:15Z	0.576	false
2019-01-17T23:00Z	0.577	false
2019-01-17T22:45Z	0.579	false
2019-01-17T22:30Z	0.58	false
2019-01-17T22:15Z	0.582	false
2019-01-17T22:00Z	0.583	false
2019-01-17T21:45Z	0.585	false
2019-01-17T21:30Z	0.586	false
2019-01-17T21:15Z	0.588	false
2019-01-17T21:00Z	0.589	false
2019-01-17T20:45Z	0.591	false
2019-01-17T20:30Z	0.593	false
2019-01-17T20:15Z	0.594	false
2019-01-17T20:00Z	0.596	false
2019-01-17T19:45Z	0.597	false
2019-01-17T19:30Z	0.599	false
2019-01-17T19:15Z	0.602	false
2019-01-17T19:00Z	0.603	false
2019-01-17T18:45Z	0.605	false
2019-01-17T18:30Z	0.607	false
2019-01-17T18:15Z	0.609	false
2019-01-17T18:00Z	0.611	false
2019-01-17T17:45Z	0.613	false
2019-01-17T17:30Z	0.615	false
2019-01-17T17:15Z	0.618	false
2019-01-17T17:00Z	0.619	false
2019-01-17T16:45Z	0.622	false
2019-01-17T16:30Z	0.623	false
2019-01-17T16:15Z	0.626	false
2019-01-17T16:00Z	0.628	false
2019-01-17T15:45Z	0.629	false
2019-01-17T15:30Z	0.631	false
2019-01-17T15:15Z	0.634	false
2019-01-17T15:00Z	0.635	false
2019-01-17T14:45Z	0.638	false
2019-01-17T14:30Z	0.639	false
2019-01-17T14:15Z	0.641	false
2019-01-17T14:00Z	0.641	false
2019-01-17T13:45Z	0.641	false
2019-01-17T13:30Z	0.639	false
2019-01-17T13:15Z	0.64	false
2019-01-17T13:00Z	0.64	false
2019-01-17T12:45Z	0.639	false
2019-01-17T12:30Z	0.641	false
2019-01-17T12:15Z	0.64	false
2019-01-17T12:00Z	0.643	false
2019-01-17T11:45Z	0.645	false
2019-01-17T11:30Z	0.644	false
2019-01-17T11:15Z	0.645	false
2019-01-17T11:00Z	0.645	false
2019-01-17T10:45Z	0.646	false
2019-01-17T10:30Z	0.647	false
2019-01-17T10:15Z	0.648	false
2019-01-17T10:00Z	0.649	false
2019-01-17T09:45Z	0.652	false
2019-01-17T09:30Z	0.653	false
2019-01-17T09:15Z	0.654	false
2019-01-17T09:00Z	0.654	false
2019-01-17T08:45Z	0.654	false
2019-01-17T08:30Z	0.656	false
2019-01-17T08:15Z	0.654	false
2019-01-17T08:00Z	0.654	false
2019-01-17T07:45Z	0.654	false
2019-01-17T07:30Z	0.654	false
2019-01-17T07:15Z	0.654	false
2019-01-17T07:00Z	0.651	false
2019-01-17T06:45Z	0.65	false
2019-01-17T06:30Z	0.648	false
2019-01-17T06:15Z	0.643	false
2019-01-17T06:00Z	0.638	false
2019-01-17T05:45Z	0.634	false
2019-01-17T05:30Z	0.628	false
2019-01-17T05:15Z	0.622	false
2019-01-17T05:00Z	0.615	false
2019-01-17T04:45Z	0.608	false
2019-01-17T04:30Z	0.601	false
2019-01-17T04:15Z	0.593	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
• View your property's long term risk of flooding

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