RiverFish

Roach · Rutilus rutilus

Roach in the River Kennet

Largest measured roach: 39.6 cm

The largest roach measured in Environment Agency surveys of the River Kennet was 39.6 cm, recorded at Burghfield on 27 October 2018.

Across 11,741 measured roach, the median measured length was 12.5 cm.

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the River Kennet.

See roach records across England →

Most recent observation8 October 2025Lambstream - Eel · 5 fish
Largest measured roach
39.6 cm
Median length
12.5 cm
Fish measured
11,741
Survey locations
36

Individual EA measurements

Largest measured roach

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

LengthSurvey dateSurvey locationSurvey ID
39.6 cm27 Oct 2018Burghfield154064
36.3 cm29 Oct 2012Burghfield134889
35.8 cm8 Nov 2011Burghfield129705
35.5 cm27 Oct 2010Burghfield125407
34.2 cm18 Oct 2015Foudry Brook to County Weir147199
32.8 cm15 Nov 2024Northcroft Recreation Centre- West Mills168311
32.5 cm15 Nov 2024Northcroft Recreation Centre- West Mills168311
32.3 cm7 Nov 2014Burghfield143968
31 cm25 Oct 2010Northcroft Recreation Centre- West Mills125414
30.7 cm29 Oct 2012Burghfield134889

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where roach were found

Each point marks a survey location with at least one roach record.

Choose a point on the map to see what was recorded there.

Map points are approximate and don’t show fishing access. Check local permissions before visiting.

Place surveyedFirst recordedLast recordedVisits finding roach
Lambstream - Eel8 Oct 20258 Oct 20251
Priors Moor Ditch - Eel6 Oct 202325 Sept 20252
Northcroft - Eel10 Oct 202325 Sept 20253
Osier Bed Stream - Eel6 Oct 202319 Sept 20253
Northcroft Recreation Centre- West Mills1 Apr 200315 Nov 202419
Woolhampton - Salmon Cut.3 Apr 200313 Nov 202417
Burghfield27 Oct 200412 Nov 202417
North Ditch - Eel13 Oct 202313 Oct 20231
Parliament Draft - Eel10 Oct 202310 Oct 20231
Salmon Cut4 Nov 20084 Nov 202211
Foudry Brook to County Weir16 Apr 20032 Nov 202217
Hambridge11 Nov 200430 Oct 20199
Willow Stream - Barton Court16 Mar 200429 Oct 201910
Fobney -Foudry Brook10 Apr 200328 Oct 201811
Gaston Lock - Burghfield Mill9 Apr 200327 Oct 201811
Bulls lock- Widmead lock2 Apr 200324 Oct 201811
Marsh Benham20 Oct 200422 Oct 201810
Lower Benyons27 Oct 200416 Oct 20159
Shenfield by-pass channel18 Sept 201518 Sept 20151
Downstream of Fraudes Marina6 Nov 20146 Nov 20141
Disused Railway Bridge at Thatcham5 Nov 20145 Nov 20141
Fobney Island16 Mar 201116 Mar 20111
Pipe Stream - Wilderness31 Oct 200130 Mar 20103
Barton Holt- Upstream of weir30 Mar 201030 Mar 20101
Aldershot Stream14 Nov 200313 Nov 20094
Osier Bed Stream28 Sept 200411 Nov 20092
Speen Moor23 Oct 20065 Nov 20092
Fobney to County Weir13 Apr 200316 Oct 20085
Blakes lock to confluence with Thames22 Jul 200822 Jul 20081
Middle Cut u/s Duffers Pool - Wilderness26 Feb 200826 Feb 20081
Kings bridge - Brimpton3 Nov 200431 Oct 20063
Upper Benyons10 Nov 200510 Nov 20051
Ufton to Tyle mill8 Apr 200318 Oct 20053
Waterside Farm2 Apr 200313 Oct 20053
Padworth Mill - Padworth Bridge26 Oct 200426 Oct 20041
Bathing Pool to Barnets Hatch20 Oct 200420 Oct 20041

Choose a point or table row to see the location. More survey visits can mean more records, but not necessarily more fish.

2001–2025

Survey records by year

Each bar shows how many survey visits recorded roach that year.

Fish measured by surveyors

Measured length distribution

See how the 11,741 measured fish were spread across different length ranges.

Smallest
1.9 cm
Lower quarter
9.5 cm
Median
12.5 cm
Upper quarter
15.6 cm
Largest
39.6 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the River Kennet

Compare other species with enough survey and measurement data for a detailed page.

Pike Brown / sea trout Chub Dace Perch Gudgeon

Before you fish

Good to know

These are past survey records, so the fish present today may be different. Map points are approximate—check local access, permissions and fishing rules before visiting.

Learn how RiverFish uses the data →