RiverFish

Roach · Rutilus rutilus

Roach in the South Forty Foot Drain

Largest measured roach: 30.5 cm

The largest roach measured in Environment Agency surveys of the South Forty Foot Drain was 30.5 cm, recorded at Swineshead Bridge Downstream on 18 August 2005.

Across 41,900 measured roach, the median measured length was 9.8 cm.

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

See roach records across England →

Most recent observation24 April 2019Neslam Bridge · 160 fish
Largest measured roach
30.5 cm
Median length
9.8 cm
Fish measured
41,900
Survey locations
13

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
30.5 cm18 Aug 2005Swineshead Bridge Downstream86969
30.4 cm9 Sept 2010Wyberton Bridge Upstream125678
30.2 cm9 Sept 2010Wyberton Bridge Upstream125678
30.1 cm18 Aug 2005Swineshead Bridge Downstream86969
29.4 cm16 Jul 1990Wyberton Bridge Upstream57722
29.3 cm10 Jul 1990Upstream Rod Rest57720
29.2 cm15 Jul 1987Hubberts Bridge R/B Upstream57700
29.2 cm30 Jun 1987Bicker Fen57696
28.2 cm8 Sept 2010Hubberts Bridge R/B Upstream124561
27.9 cm15 Jul 1987Hubberts Bridge R/B Upstream57700

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
Neslam Bridge16 Jun 198724 Apr 20196
Donington Bridge2 Jul 199023 Apr 201912
Swineshead Bridge Downstream14 Jul 198724 May 201615
Side Scan validiation netting23 May 201323 May 20131
Wyberton Bridge Upstream24 Jul 198720 Sept 201213
Hubberts Bridge R/B Upstream15 Jul 198719 Sept 20129
Bicker Fen30 Jun 19876 Sept 201011
Dowsby Road16 Jun 19875 Sept 20066
Fortyfoot Farm18 Jun 198718 Jun 20025
Upstream Rod Rest13 Jul 198726 Jul 19994
Swineshead Bridge1 Jul 198721 Jul 19994
College Farm14 Jun 19909 Jul 19992
Downstream AWA Wyberton Labortory22 Jul 198716 Aug 19953

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

1987–2019

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 41,900 measured fish were spread across different length ranges.

Smallest
0.4 cm
Lower quarter
7.4 cm
Median
9.8 cm
Upper quarter
13.4 cm
Largest
30.5 cm

Lengths are direct survey measurements rather than anglers’ catches.

More fish in this river

Explore the South Forty Foot Drain

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

Perch Pike Common bream Silver bream Dace European eel

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 →