River level Chertsey Bourne at Free Prae Road

Check for flood warnings in this area

Latest recorded level 1.44m at 3:30pm Friday 15 January 2021.

River levels at this location in the last 5 days

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• Measured level
• When the water level reaches 1.60m here, minor flooding is possible in this area
• Highest recorded level. Hide
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Observed data

DateTime	Value	Error
2021-01-15T15:30Z	1.441	false
2021-01-15T15:15Z	1.443	false
2021-01-15T15:00Z	1.442	false
2021-01-15T14:45Z	1.443	false
2021-01-15T14:30Z	1.445	false
2021-01-15T14:15Z	1.444	false
2021-01-15T14:00Z	1.444	false
2021-01-15T13:45Z	1.444	false
2021-01-15T13:30Z	1.445	false
2021-01-15T13:15Z	1.445	false
2021-01-15T13:00Z	1.444	false
2021-01-15T12:45Z	1.445	false
2021-01-15T12:30Z	1.444	false
2021-01-15T12:15Z	1.443	false
2021-01-15T12:00Z	1.441	false
2021-01-15T11:45Z	1.44	false
2021-01-15T11:30Z	1.439	false
2021-01-15T11:15Z	1.436	false
2021-01-15T11:00Z	1.437	false
2021-01-15T10:45Z	1.435	false
2021-01-15T10:30Z	1.436	false
2021-01-15T10:15Z	1.434	false
2021-01-15T10:00Z	1.431	false
2021-01-15T09:45Z	1.432	false
2021-01-15T09:30Z	1.431	false
2021-01-15T09:15Z	1.432	false
2021-01-15T09:00Z	1.43	false
2021-01-15T08:45Z	1.429	false
2021-01-15T08:30Z	1.429	false
2021-01-15T08:15Z	1.432	false
2021-01-15T08:00Z	1.431	false
2021-01-15T07:45Z	1.432	false
2021-01-15T07:30Z	1.433	false
2021-01-15T07:15Z	1.433	false
2021-01-15T07:00Z	1.434	false
2021-01-15T06:45Z	1.436	false
2021-01-15T06:30Z	1.435	false
2021-01-15T06:15Z	1.438	false
2021-01-15T06:00Z	1.439	false
2021-01-15T05:45Z	1.441	false
2021-01-15T05:30Z	1.443	false
2021-01-15T05:15Z	1.444	false
2021-01-15T05:00Z	1.446	false
2021-01-15T04:45Z	1.446	false
2021-01-15T04:30Z	1.449	false
2021-01-15T04:15Z	1.449	false
2021-01-15T04:00Z	1.449	false
2021-01-15T03:45Z	1.452	false
2021-01-15T03:30Z	1.452	false
2021-01-15T03:15Z	1.453	false
2021-01-15T03:00Z	1.454	false
2021-01-15T02:45Z	1.457	false
2021-01-15T02:30Z	1.458	false
2021-01-15T02:15Z	1.458	false
2021-01-15T02:00Z	1.457	false
2021-01-15T01:45Z	1.46	false
2021-01-15T01:30Z	1.46	false
2021-01-15T01:15Z	1.46	false
2021-01-15T01:00Z	1.46	false
2021-01-15T00:45Z	1.46	false
2021-01-15T00:30Z	1.461	false
2021-01-15T00:15Z	1.461	false
2021-01-15T00:00Z	1.461	false
2021-01-14T23:45Z	1.46	false
2021-01-14T23:30Z	1.461	false
2021-01-14T23:15Z	1.46	false
2021-01-14T23:00Z	1.459	false
2021-01-14T22:45Z	1.456	false
2021-01-14T22:30Z	1.455	false
2021-01-14T22:15Z	1.454	false
2021-01-14T22:00Z	1.451	false
2021-01-14T21:45Z	1.449	false
2021-01-14T21:30Z	1.447	false
2021-01-14T21:15Z	1.445	false
2021-01-14T21:00Z	1.442	false
2021-01-14T20:45Z	1.44	false
2021-01-14T20:30Z	1.437	false
2021-01-14T20:15Z	1.434	false
2021-01-14T20:00Z	1.431	false
2021-01-14T19:45Z	1.43	false
2021-01-14T19:30Z	1.426	false
2021-01-14T19:15Z	1.423	false
2021-01-14T19:00Z	1.421	false
2021-01-14T18:45Z	1.418	false
2021-01-14T18:30Z	1.415	false
2021-01-14T18:15Z	1.412	false
2021-01-14T18:00Z	1.411	false
2021-01-14T17:45Z	1.406	false
2021-01-14T17:30Z	1.403	false
2021-01-14T17:15Z	1.401	false
2021-01-14T17:00Z	1.397	false
2021-01-14T16:45Z	1.391	false
2021-01-14T16:30Z	1.387	false
2021-01-14T16:15Z	1.384	false
2021-01-14T16:00Z	1.379	false
2021-01-14T15:45Z	1.374	false
2021-01-14T15:30Z	1.369	false
2021-01-14T15:15Z	1.365	false
2021-01-14T15:00Z	1.361	false
2021-01-14T14:45Z	1.359	false
2021-01-14T14:30Z	1.357	false
2021-01-14T14:15Z	1.356	false
2021-01-14T14:00Z	1.355	false
2021-01-14T13:45Z	1.352	false
2021-01-14T13:30Z	1.35	false
2021-01-14T13:15Z	1.344	false
2021-01-14T13:00Z	1.341	false
2021-01-14T12:45Z	1.336	false
2021-01-14T12:30Z	1.329	false
2021-01-14T12:15Z	1.325	false
2021-01-14T12:00Z	1.317	false
2021-01-14T11:45Z	1.312	false
2021-01-14T11:30Z	1.304	false
2021-01-14T11:15Z	1.298	false
2021-01-14T11:00Z	1.287	false
2021-01-14T10:45Z	1.272	false
2021-01-14T10:30Z	1.263	false
2021-01-14T10:15Z	1.253	false
2021-01-14T10:00Z	1.238	false
2021-01-14T09:45Z	1.226	false
2021-01-14T09:30Z	1.211	false
2021-01-14T09:15Z	1.198	false
2021-01-14T09:00Z	1.182	false
2021-01-14T08:45Z	1.17	false
2021-01-14T08:30Z	1.157	false
2021-01-14T08:15Z	1.147	false
2021-01-14T08:00Z	1.14	false
2021-01-14T07:45Z	1.131	false
2021-01-14T07:30Z	1.126	false
2021-01-14T07:15Z	1.125	false
2021-01-14T07:00Z	1.123	false
2021-01-14T06:45Z	1.121	false
2021-01-14T06:30Z	1.121	false
2021-01-14T06:15Z	1.12	false
2021-01-14T06:00Z	1.116	false
2021-01-14T05:45Z	1.113	false
2021-01-14T05:30Z	1.114	false
2021-01-14T05:15Z	1.115	false
2021-01-14T05:00Z	1.116	false
2021-01-14T04:45Z	1.119	false
2021-01-14T04:30Z	1.122	false
2021-01-14T04:15Z	1.125	false
2021-01-14T04:00Z	1.126	false
2021-01-14T03:45Z	1.127	false
2021-01-14T03:30Z	1.129	false
2021-01-14T03:15Z	1.131	false
2021-01-14T03:00Z	1.134	false
2021-01-14T02:45Z	1.135	false
2021-01-14T02:30Z	1.138	false
2021-01-14T02:15Z	1.14	false
2021-01-14T02:00Z	1.139	false
2021-01-14T01:45Z	1.141	false
2021-01-14T01:30Z	1.142	false
2021-01-14T01:15Z	1.144	false
2021-01-14T01:00Z	1.146	false
2021-01-14T00:45Z	1.147	false
2021-01-14T00:30Z	1.149	false
2021-01-14T00:15Z	1.152	false
2021-01-14T00:00Z	1.152	false
2021-01-13T23:45Z	1.152	false
2021-01-13T23:30Z	1.152	false
2021-01-13T23:15Z	1.152	false
2021-01-13T23:00Z	1.153	false
2021-01-13T22:45Z	1.152	false
2021-01-13T22:30Z	1.153	false
2021-01-13T22:15Z	1.152	false
2021-01-13T22:00Z	1.149	false
2021-01-13T21:45Z	1.149	false
2021-01-13T21:30Z	1.146	false
2021-01-13T21:15Z	1.143	false
2021-01-13T21:00Z	1.142	false
2021-01-13T20:45Z	1.14	false
2021-01-13T20:30Z	1.139	false
2021-01-13T20:15Z	1.139	false
2021-01-13T20:00Z	1.135	false
2021-01-13T19:45Z	1.136	false
2021-01-13T19:30Z	1.134	false
2021-01-13T19:15Z	1.136	false
2021-01-13T19:00Z	1.136	false
2021-01-13T18:45Z	1.136	false
2021-01-13T18:30Z	1.136	false
2021-01-13T18:15Z	1.138	false
2021-01-13T18:00Z	1.141	false
2021-01-13T17:45Z	1.142	false
2021-01-13T17:30Z	1.144	false
2021-01-13T17:15Z	1.146	false
2021-01-13T17:00Z	1.146	false
2021-01-13T16:45Z	1.147	false
2021-01-13T16:30Z	1.146	false
2021-01-13T16:15Z	1.146	false
2021-01-13T16:00Z	1.145	false
2021-01-13T15:45Z	1.145	false
2021-01-13T15:30Z	1.145	false
2021-01-13T15:15Z	1.145	false
2021-01-13T15:00Z	1.146	false
2021-01-13T14:45Z	1.146	false
2021-01-13T14:30Z	1.146	false
2021-01-13T14:15Z	1.146	false
2021-01-13T14:00Z	1.146	false
2021-01-13T13:45Z	1.144	false
2021-01-13T13:30Z	1.142	false
2021-01-13T13:15Z	1.139	false
2021-01-13T13:00Z	1.135	false
2021-01-13T12:45Z	1.131	false
2021-01-13T12:30Z	1.127	false
2021-01-13T12:15Z	1.122	false
2021-01-13T12:00Z	1.118	false
2021-01-13T11:45Z	1.112	false
2021-01-13T11:30Z	1.105	false
2021-01-13T11:15Z	1.099	false
2021-01-13T11:00Z	1.091	false
2021-01-13T10:45Z	1.085	false
2021-01-13T10:30Z	1.079	false
2021-01-13T10:15Z	1.074	false
2021-01-13T10:00Z	1.069	false
2021-01-13T09:45Z	1.065	false
2021-01-13T09:30Z	1.059	false
2021-01-13T09:15Z	1.06	false
2021-01-13T09:00Z	1.058	false
2021-01-13T08:45Z	1.058	false
2021-01-13T08:30Z	1.057	false
2021-01-13T08:15Z	1.057	false
2021-01-13T08:00Z	1.058	false
2021-01-13T07:45Z	1.057	false
2021-01-13T07:30Z	1.058	false
2021-01-13T07:15Z	1.059	false
2021-01-13T07:00Z	1.06	false
2021-01-13T06:45Z	1.063	false
2021-01-13T06:30Z	1.062	false
2021-01-13T06:15Z	1.065	false
2021-01-13T06:00Z	1.066	false
2021-01-13T05:45Z	1.068	false
2021-01-13T05:30Z	1.069	false
2021-01-13T05:15Z	1.074	false
2021-01-13T05:00Z	1.077	false
2021-01-13T04:45Z	1.08	false
2021-01-13T04:30Z	1.084	false
2021-01-13T04:15Z	1.087	false
2021-01-13T04:00Z	1.091	false
2021-01-13T03:45Z	1.096	false
2021-01-13T03:30Z	1.1	false
2021-01-13T03:15Z	1.104	false
2021-01-13T03:00Z	1.106	false
2021-01-13T02:45Z	1.109	false
2021-01-13T02:30Z	1.115	false
2021-01-13T02:15Z	1.117	false
2021-01-13T02:00Z	1.12	false
2021-01-13T01:45Z	1.123	false
2021-01-13T01:30Z	1.126	false
2021-01-13T01:15Z	1.129	false
2021-01-13T01:00Z	1.131	false
2021-01-13T00:45Z	1.135	false
2021-01-13T00:30Z	1.135	false
2021-01-13T00:15Z	1.138	false
2021-01-13T00:00Z	1.139	false
2021-01-12T23:45Z	1.141	false
2021-01-12T23:30Z	1.143	false
2021-01-12T23:15Z	1.145	false
2021-01-12T23:00Z	1.146	false
2021-01-12T22:45Z	1.145	false
2021-01-12T22:30Z	1.147	false
2021-01-12T22:15Z	1.147	false
2021-01-12T22:00Z	1.145	false
2021-01-12T21:45Z	1.144	false
2021-01-12T21:30Z	1.144	false
2021-01-12T21:15Z	1.141	false
2021-01-12T21:00Z	1.14	false
2021-01-12T20:45Z	1.138	false
2021-01-12T20:30Z	1.138	false
2021-01-12T20:15Z	1.137	false
2021-01-12T20:00Z	1.139	false
2021-01-12T19:45Z	1.139	false
2021-01-12T19:30Z	1.14	false
2021-01-12T19:15Z	1.139	false
2021-01-12T19:00Z	1.14	false
2021-01-12T18:45Z	1.141	false
2021-01-12T18:30Z	1.142	false
2021-01-12T18:15Z	1.142	false
2021-01-12T18:00Z	1.143	false
2021-01-12T17:45Z	1.145	false
2021-01-12T17:30Z	1.146	false
2021-01-12T17:15Z	1.148	false
2021-01-12T17:00Z	1.15	false
2021-01-12T16:45Z	1.151	false
2021-01-12T16:30Z	1.152	false
2021-01-12T16:15Z	1.154	false
2021-01-12T16:00Z	1.155	false
2021-01-12T15:45Z	1.157	false
2021-01-12T15:30Z	1.157	false
2021-01-12T15:15Z	1.16	false
2021-01-12T15:00Z	1.16	false
2021-01-12T14:45Z	1.161	false
2021-01-12T14:30Z	1.162	false
2021-01-12T14:15Z	1.163	false
2021-01-12T14:00Z	1.163	false
2021-01-12T13:45Z	1.162	false
2021-01-12T13:30Z	1.163	false
2021-01-12T13:15Z	1.163	false
2021-01-12T13:00Z	1.162	false
2021-01-12T12:45Z	1.163	false
2021-01-12T12:30Z	1.16	false
2021-01-12T12:15Z	1.158	false
2021-01-12T12:00Z	1.155	false
2021-01-12T11:45Z	1.152	false
2021-01-12T11:30Z	1.147	false
2021-01-12T11:15Z	1.141	false
2021-01-12T11:00Z	1.135	false
2021-01-12T10:45Z	1.131	false
2021-01-12T10:30Z	1.124	false
2021-01-12T10:15Z	1.117	false
2021-01-12T10:00Z	1.112	false
2021-01-12T09:45Z	1.107	false
2021-01-12T09:30Z	1.103	false
2021-01-12T09:15Z	1.1	false
2021-01-12T09:00Z	1.099	false
2021-01-12T08:45Z	1.097	false
2021-01-12T08:30Z	1.096	false
2021-01-12T08:15Z	1.096	false
2021-01-12T08:00Z	1.093	false
2021-01-12T07:45Z	1.088	false
2021-01-12T07:30Z	1.082	false
2021-01-12T07:15Z	1.08	false
2021-01-12T07:00Z	1.078	false
2021-01-12T06:45Z	1.076	false
2021-01-12T06:30Z	1.073	false
2021-01-12T06:15Z	1.072	false
2021-01-12T06:00Z	1.069	false
2021-01-12T05:45Z	1.069	false
2021-01-12T05:30Z	1.069	false
2021-01-12T05:15Z	1.068	false
2021-01-12T05:00Z	1.067	false
2021-01-12T04:45Z	1.067	false
2021-01-12T04:30Z	1.066	false
2021-01-12T04:15Z	1.066	false
2021-01-12T04:00Z	1.066	false
2021-01-12T03:45Z	1.065	false
2021-01-12T03:30Z	1.063	false
2021-01-12T03:15Z	1.063	false
2021-01-12T03:00Z	1.064	false
2021-01-12T02:45Z	1.066	false
2021-01-12T02:30Z	1.068	false
2021-01-12T02:15Z	1.07	false
2021-01-12T02:00Z	1.073	false
2021-01-12T01:45Z	1.073	false
2021-01-12T01:30Z	1.076	false
2021-01-12T01:15Z	1.076	false
2021-01-12T01:00Z	1.079	false
2021-01-12T00:45Z	1.08	false
2021-01-12T00:30Z	1.079	false
2021-01-12T00:15Z	1.084	false
2021-01-12T00:00Z	1.084	false
2021-01-11T23:45Z	1.086	false
2021-01-11T23:30Z	1.087	false
2021-01-11T23:15Z	1.088	false
2021-01-11T23:00Z	1.085	false
2021-01-11T22:45Z	1.084	false
2021-01-11T22:30Z	1.082	false
2021-01-11T22:15Z	1.08	false
2021-01-11T22:00Z	1.077	false
2021-01-11T21:45Z	1.075	false
2021-01-11T21:30Z	1.073	false
2021-01-11T21:15Z	1.07	false
2021-01-11T21:00Z	1.068	false
2021-01-11T20:45Z	1.066	false
2021-01-11T20:30Z	1.065	false
2021-01-11T20:15Z	1.064	false
2021-01-11T20:00Z	1.063	false
2021-01-11T19:45Z	1.062	false
2021-01-11T19:30Z	1.064	false
2021-01-11T19:15Z	1.065	false
2021-01-11T19:00Z	1.066	false
2021-01-11T18:45Z	1.068	false
2021-01-11T18:30Z	1.069	false
2021-01-11T18:15Z	1.071	false
2021-01-11T18:00Z	1.072	false
2021-01-11T17:45Z	1.074	false
2021-01-11T17:30Z	1.075	false
2021-01-11T17:15Z	1.078	false
2021-01-11T17:00Z	1.079	false
2021-01-11T16:45Z	1.079	false
2021-01-11T16:30Z	1.08	false
2021-01-11T16:15Z	1.081	false
2021-01-11T16:00Z	1.08	false
2021-01-11T15:45Z	1.081	false
2021-01-11T15:30Z	1.082	false
2021-01-11T15:15Z	1.085	false
2021-01-11T15:00Z	1.084	false
2021-01-11T14:45Z	1.084	false
2021-01-11T14:30Z	1.085	false
2021-01-11T14:15Z	1.088	false
2021-01-11T14:00Z	1.088	false
2021-01-11T13:45Z	1.089	false
2021-01-11T13:30Z	1.089	false
2021-01-11T13:15Z	1.089	false
2021-01-11T13:00Z	1.089	false
2021-01-11T12:45Z	1.084	false
2021-01-11T12:30Z	1.082	false
2021-01-11T12:15Z	1.077	false
2021-01-11T12:00Z	1.072	false
2021-01-11T11:45Z	1.065	false
2021-01-11T11:30Z	1.059	false
2021-01-11T11:15Z	1.051	false
2021-01-11T11:00Z	1.045	false
2021-01-11T10:45Z	1.039	false
2021-01-11T10:30Z	1.032	false
2021-01-11T10:15Z	1.028	false
2021-01-11T10:00Z	1.025	false
2021-01-11T09:45Z	1.021	false
2021-01-11T09:30Z	1.021	false
2021-01-11T09:15Z	1.017	false
2021-01-11T09:00Z	1.017	false
2021-01-11T08:45Z	1.017	false
2021-01-11T08:30Z	1.016	false
2021-01-11T08:15Z	1.017	false
2021-01-11T08:00Z	1.018	false
2021-01-11T07:45Z	1.02	false
2021-01-11T07:30Z	1.02	false
2021-01-11T07:15Z	1.023	false
2021-01-11T07:00Z	1.025	false
2021-01-11T06:45Z	1.025	false
2021-01-11T06:30Z	1.028	false
2021-01-11T06:15Z	1.03	false
2021-01-11T06:00Z	1.034	false
2021-01-11T05:45Z	1.035	false
2021-01-11T05:30Z	1.039	false
2021-01-11T05:15Z	1.04	false
2021-01-11T05:00Z	1.044	false
2021-01-11T04:45Z	1.047	false
2021-01-11T04:30Z	1.05	false
2021-01-11T04:15Z	1.053	false
2021-01-11T04:00Z	1.058	false
2021-01-11T03:45Z	1.061	false
2021-01-11T03:30Z	1.065	false
2021-01-11T03:15Z	1.069	false
2021-01-11T03:00Z	1.073	false
2021-01-11T02:45Z	1.076	false
2021-01-11T02:30Z	1.078	false
2021-01-11T02:15Z	1.082	false
2021-01-11T02:00Z	1.087	false
2021-01-11T01:45Z	1.087	false
2021-01-11T01:30Z	1.09	false
2021-01-11T01:15Z	1.091	false
2021-01-11T01:00Z	1.094	false
2021-01-11T00:45Z	1.095	false
2021-01-11T00:30Z	1.098	false
2021-01-11T00:15Z	1.099	false
2021-01-11T00:00Z	1.101	false
2021-01-10T23:45Z	1.102	false
2021-01-10T23:30Z	1.104	false
2021-01-10T23:15Z	1.104	false
2021-01-10T23:00Z	1.103	false
2021-01-10T22:45Z	1.103	false
2021-01-10T22:30Z	1.104	false
2021-01-10T22:15Z	1.103	false
2021-01-10T22:00Z	1.103	false
2021-01-10T21:45Z	1.102	false
2021-01-10T21:30Z	1.102	false
2021-01-10T21:15Z	1.101	false
2021-01-10T21:00Z	1.101	false
2021-01-10T20:45Z	1.101	false
2021-01-10T20:30Z	1.1	false
2021-01-10T20:15Z	1.103	false
2021-01-10T20:00Z	1.102	false
2021-01-10T19:45Z	1.102	false
2021-01-10T19:30Z	1.104	false
2021-01-10T19:15Z	1.105	false
2021-01-10T19:00Z	1.105	false
2021-01-10T18:45Z	1.105	false
2021-01-10T18:30Z	1.108	false
2021-01-10T18:15Z	1.109	false
2021-01-10T18:00Z	1.112	false
2021-01-10T17:45Z	1.113	false
2021-01-10T17:30Z	1.116	false
2021-01-10T17:15Z	1.117	false
2021-01-10T17:00Z	1.119	false
2021-01-10T16:45Z	1.118	false
2021-01-10T16:30Z	1.121	false
2021-01-10T16:15Z	1.121	false
2021-01-10T16:00Z	1.121	false
2021-01-10T15:45Z	1.121	false

Forecast data

Key information

• Station name: Free Prae Road
• Station ID: 7220
• River name: Chertsey Bourne
• Typical range: 0.72m to 1.60m
• Highest level on record: 2.63m on 02 January 2003
• Site datum: 10.00mAOD (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.

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