Environmental Statement - Appendices Great Billing Sand and Gravel Extraction and Restoration
\\Pba.int\bri\Projects\30755 Great Billing\Technical\Environment\Environmental\ES\Appendices\Appendix F - Ecology\App F4 cover sheet.docx
Appendix F.4 Ecton Brook Crossing Point Otter Survey
MLM Consulting Engineers Ltd Main Tel: 01473 231100
North Kiln, Felaw Maltings, 46 Felaw Street, Ipswich, Suffolk, IP2 8PN
Document Ref: 773939-REP-ENV-001 Prepared: Emily Greenall
Revision: 0 Senior Ecologist
Date: September 2016
Checked: Gemma LinacreSenior Ecologist
Approved: Gemma Linacre
Senior Ecologist
Anglian Water Services Ltd
Great Billing Minerals Site - Ecton Brook Crossing Point
Otter Survey
Great Billing Minerals Site © MLM Consulting Engineers Ltd Otter Survey
773939-REP-ENV-001
Project Revision Sheet
Revision
No
Date Status Changes Author Approved
0 30 September
2016
Final E. Greenall G. Linacre
Great Billing Minerals Site © MLM Consulting Engineers Ltd Otter Survey
773939-REP-ENV-001
Contents
Page
Non-technical Summary i
Limitations and Exceptions ii
1 Introduction 1 1.1 Purpose 1 1.2 Site Location 1 1.3 Previous Surveys 1 1.4 Current UK Legislation 1
2 Methodologies 3 2.1 Walkover survey 3 2.2 Camera Trapping 3 2.3 Dusk and Dawn Vantage Point Watches 3
3 Results 4 3.1 Walkover Surveys 4 3.2 Camera Trapping 4 3.3 Dusk and Dawn Vantage Point Watches 4
4 Evaluation 5
5 Conclusions and Recommendations 6
6 References 7
Figures and Drawings
617276-DWG-CIV-005
617276-DWG-CIV-006
773939-DWG-ENV-001
Great Billing Minerals Site © MLM Consulting Engineers Ltd Otter Survey
773939-REP-ENV-001 i i
Non-technical Summary
This report has been prepared by MLM Consulting Engineers Limited (MLM) for Anglian Water Services Ltd, and relates to a proposed new bridge across Ecton Brook at the Great
Billing Minerals site. The purpose of the survey is to ascertain the presence of otter
(Lutra lutra) on site, and if present, the likely frequency of use.
The aim of this report is to describe the results of a walkover survey and camera trapping
undertaken at the site.
Walkover surveys were undertaken on 18 May, 8 June, and 22 June 2016 to check for signs
of otter along the brook and at the bridge crossing location. The survey found a number
of fresh spraints at various locations across the site, at the same locations as recorded
during previous surveys. Camera traps were placed at two location on the Ecton Brook,
upstream and downstream of the proposed crossing point, shown on drawing 773939-
DWG-ENV-001. The cameras were left on site for 5 weeks between 18 May 2016 and 22
June 2016. The camera trapping did not record otters on site. Dusk and dawn watches
were also undertaken on three occasions (a dusk survey on 18 May, and dawn watches on
8 and 22 June) and otters were not seen. It was concluded that the site is used infrequently
by otter as part of its territory.
Great Billing Minerals Site © MLM Consulting Engineers Ltd Otter Survey
773939-REP-ENV-001 ii ii
Limitations and Exceptions
This report and its findings should be considered in relation to the terms and conditions
proposed and scope of works agreed between MLM and the client.
Interpretations and recommendations contained in the report represent our professional
opinions, which were arrived at in accordance with currently accepted industry practices at
the time of reporting and based on current legislation in force at that time.
The copyright in this report and other plans and documents prepared by MLM
Environmental is owned by MLM and no such report, plan or document may be reproduced,
published or adapted without their written consent. Complete copies of this report may,
however, be made and distributed by the client as an expedient in dealing with matters
related to its commission.
This report is prepared and written in the context of the proposals stated in the introduction
to this report and should not be used in a differing context. Furthermore, alterations to
the initial proposals or changes in conditions on site over time may necessitate an alteration
to the report in whole or in part after its submission. Therefore, any change in proposals
or lapse of one year or more from the date of the report, the content of the report should
not be relied upon unless referred to MLM for validation and, if necessary, re-appraisal.
Scientific survey data will be shared with local biological records centre in accordance with
the CIEEM professional code of conduct.
This report was prepared only for our client and is not intended to be relied on by any other
party. Third parties should not rely on the facts, matters or opinions set out in this report
without the express written permission of MLM.
Please note that MLM does not purport to provide specialist legal advice.
Study Specific Limitations
Any limitations associated with the report will be stated, with an explanation of their
significance. The consequences of any limitations on the survey, report findings and/or
recommendations in the report are made clear in the report.
Unless stated specifically, drawings and plans are indicative only. As such, the position of
features marked on the plans or drawings should not be taken as 100% accurate.
During the period that the cameras were left out for, there was an extreme rainfall event
which flooded one of the cameras. This occurred towards the end of the monitoring period,
so between the last two June visits to site. When the pictures were downloaded for this
period it was clear that the camera (Spypoint) had stopped functioning once it became
flooded with water. The second camera was functioning correctly and was not impacted
by the weather.
Great Billing Minerals Site © MLM Consulting Engineers Ltd Otter Survey
773939-REP-ENV-001 1 1
1 Introduction
1.1 Purpose
This report has been prepared by MLM for Anglian Water Services Ltd.
This report relates to a proposed new bridge crossing across Ecton Brook, as part
of a larger development at the Great Billings Minerals Site. The proposed new
bridge location and design is shown on Drawing Nos. 617276-DWG-CIV-005 and
617276-DWG-CIV-006.
The purpose of this report is detail the results of the surveys undertaken to ascertain
further information on frequency of the use of the site by otter, to ensure
appropriate mitigation measures are incorporated during bridge design and
construction.
1.2 Site Location
The location of the site surveyed is near Ecton, Northampton and may be located
by national grid reference (NGR) SP 83061 62098. The survey area included the
banks of Ecton brook flowing through the Great Billing Minerals site, and the banks
of the River Nene to the south of the site, as shown in Drawing No. 773939-REP-
ENV-001.
The site itself comprises arable fields with areas of tall ruderal vegetation along the
field boundaries and within disused fields and pockets and strips of broad leaved
woodland. The Ecton Brook flows through the site in a north – south direction and
tributes to the River Nene, flowing east-west to the south of the site.
To the north of the site, the site is bordered by Lower Ecton Road, and the A45, to
the east by broad leaved woodland and arable fields, to the south by flooded gravel
pits that are used as private fishing lakes and to the west by Anglian Water
Treatment Works.
1.3 Previous Surveys
Surveys undertaken by MLM during 2015 (ref.1) identified signs of otter (spraints,
footprints and feeding station) at the bridge crossing point. Surveys undertaken in
2011 (ref, 2) identified a suspected otter holt approximately 380m south of the
proposed bridge crossing point.
1.4 Current UK Legislation
The main legislation that applies to otter within England and Wales are:
The Wildlife and Countryside Act 1981 (WCA) Schedule 5, animals which are
protected. Otter are protected under Section 9, which prohibits the
intentional killing, injuring or taking of this species (9.1). It is also prohibited
to possess the species listed or any part of (9.2), or trade (9.5a) including
advertising the sale of any species listed (9.5b). The species listed also have
protections from disturbance through prohibiting actions which disturb or
obstruct places they use for shelter (9.4).
The Wildlife and Countryside Act 1981 (WCA) Schedule 6, animals which may
not be killed or taken by certain methods. These methods include self-
locking snares, bows, crossbows, explosives (other than ammunition for a
firearm), or live decoys. The species listed in this act are also protected
Great Billing Minerals Site © MLM Consulting Engineers Ltd Otter Survey
773939-REP-ENV-001 2 2
from protected from the following activities: trap, snare or net, electrical
device for killing or stunning, poisonous, poisoned or stupefying substances
or any other gas or smoke, automatic or semi-automatic weapon, device for
illuminating a target or sighting device for night shooting, artificial light,
mirror or other dazzling device, sound recording, and mechanically propelled
vehicle in immediate pursuit.
The Habitats Directive 1994 (EC Directive 92/43/EEC) makes it an offence
to intentionally kill, capture or disturb a European Protected Species, or to
destroy or damage the breeding site or resting place of a species listed. This
is transposed into law in the UK through the Conservation of Habitats and
Species Regulations 2010.
In addition, otters are a Priority Species within Northamptonshire and are
listed on Schedule 41 of the Natural Environment Research Council (NERC)
Act (2006).
Great Billing Minerals Site © MLM Consulting Engineers Ltd Otter Survey
773939-REP-ENV-001 3 3
2 Methodologies
2.1 Walkover survey
A walkover of the Ecton Brook within the site, shown on drawing 773939-DWG-
ENV-001 was undertaken on the 18 May, 8 June, and 22 June 2016 by Senior
Ecologist Emily Greenall MCIEEM and Senior Ecologist Gemma Hannant MCIEEM.
The two surveyors walked the banks of the Ecton Brook and connected
watercourses within the site, and the River Nene to the south of the site, looking
for signs of otter to include spraints, footprints, mammal tracks, feeding remains,
otter slides, holts (underground dens), couches (above ground sites where otters
rest during the day). The surveys were undertaken during appropriate weather
conditions, avoiding days when it was raining or had recently been raining.
2.2 Camera Trapping
Two camera traps were set up following the walkover survey, on 18 May 2016.
The purpose of deploying the cameras was to help determine the frequency with
which the site was used by otter.
The cameras were set up at locations shown on drawing 773939-DWG-ENV-001,
these locations were chosen based on the proposed bridge crossing location across
the Ecton Brook (drawing nos. 617276-DWG-CIV-005 and 617276-DWG-CIV-
006). One camera (Bushnell Natureview Cam) was placed downstream of the
proposed crossing point, and another camera (Spypoint Force 11 trail Cam) was
placed upstream of the proposed crossing point.
The cameras were deployed on 18 May and checked on 8 June and the data
downloaded. The cameras were then re-deployed at the same locations, on 8
June, before being retrieved on 22 June 2016.
2.3 Dusk and Dawn Vantage Point Watches
Vantage point watches were undertaken from two vantage points at the locations
shown on drawing 773939-DWG-ENV-001, downstream of the proposed crossing
point. Watches were undertaken at dusk on 18 May and 8 June, and at dawn on
22 June 2016. Surveyors sat at the vantage point location and watched the river
with binoculars checking for signs of otter. The dawn and dusk watches were
undertaken for two hours duration, either at sunrise or at sunset,
Great Billing Minerals Site © MLM Consulting Engineers Ltd Otter Survey
773939-REP-ENV-001 4 4
3 Results
3.1 Walkover Surveys
The initial walkover survey on 18th May 2016 identified spraints at various locations
along the Ecton Brook within the site, as shown in drawing 773939-DWG-ENV-
001. T he closest spraint to the crossing point was approximately 20m to the north
of the crossing point. Subsequent walkover visits confirmed the spraints were still
present at the same locations, but there were no fresh spraints or new signs
recorded on the subsequent visits.
3.2 Camera Trapping
The camera trapping did not identify any otters throughout the duration of
recording. When the cameras were checked (and data downloaded) on 8 June
2016, there was evidence that the Spypoint camera (camera situated upstream of
the proposed crossing point) had been inundated with water and had stopped
working. This was likely due to heavy rainfall event at the end of May. The
Bushnell camera (situated downstream of the proposed crossing point) was
working fine throughout the duration. No signs of otter were captured on the
cameras.
3.3 Dusk and Dawn Vantage Point Watches
The vantage point watches did not identify any signs of otter during any of the
watches. Other species recorded during the vantage watches included barn owl
(Tyto alba) from vantage point 1 looking east and kingfisher (Alcedo atthis) from
vantage point 2 looking south.
Great Billing Minerals Site © MLM Consulting Engineers Ltd Otter Survey
773939-REP-ENV-001 5 5
4 Evaluation
The evaluation in this section is based on the otter surveys undertaken during 2016.
For purposes of the assessment it is assumed there has been no change in the
condition of the site since the site surveys. The surveys confirmed the presence of
spraints on the Ecton Brook, showing that otters use the site as part of their
territorial range. The spraints recorded were recorded on the first walkover visit,
with no fresh spraints subsequently recorded on the remainder of the walkover
visits.
No holts or couches were observed during the survey. The camera trapping and
vantage point watches did not confirm any sightings of otter. Given the information
gathered, it is considered that the site forms part of otter territory, and otters in
the catchment infrequently use the site and the Ecton Brook for foraging. Given
the lack of sightings over the course of the 5 weeks there is no evidence to suggest
that otters are frequently using the Ecton Brook, and therefore, otters, whilst using
the site infrequently, are unlikely to be impacted by the proposed works.
Great Billing Minerals Site © MLM Consulting Engineers Ltd Otter Survey
773939-REP-ENV-001 6
5 Conclusions and Recommendations
The walkover surveys undertaken identified signs of otter in the form of spraints.
No further signs of otter were observed during the walkover, camera traps, or
vantage point watches.
The survey results would suggest that the site is used by otter as part of their
territory, but the frequency of use is low. It is unlikely that the works will impact
upon otter at this location.
Precautionary measures should be adopted, to minimise potential disturbance, to
include avoidance of artificial lighting along the banks of the Ecton Brook and
avoidance of work outside of daylight hours.
Should otters be observed on site then all works should stop and a suitably qualified
ecologist should be contacted for advice.
Great Billing Minerals Site © MLM Consulting Engineers Ltd Otter Survey
773939-REP-ENV-001 7
6 References
1 MLM, 2015. Ecological Surveys, Impact Assessment and Mitigation Strategy
Report 772478-REP-ENV-001
2 MLM, 2011. Ecological Surveys, Impact Assessment and Mitigation Strategy
Report DMB/731437/R5
Drawings and Figures
617276-DWG-CIV-005
617276-DWG-CIV-006
773939-DWG-ENV-001
SCALE 1:2500
SITE LOCATION PLAN
PROPOSED BRIDGE LOCATION
GRID REF : SP8317661903
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0
.
0
5
5
0
.
0
3
49.89
49.86
49.74
49.80
49.78
49.75
49.82
49.74
50.01
50.02
51.07
51.11
49.92
50.00
51.06
51.14
50.03
51.14
51.09
49.97
50.28
49.95
49.91
49.77
49.49
49.67
49.73
49.76
49.77
50.12
50.29
50.29
50.01
49.58
50.10
49.63
50.16
49.51
49.96
49.45
49.06
49.66
49.31
49.64
49.25
49.58
49.12
51.06
49.70
49.69
50.04
49.70
4.5m WIDE ROAD
(LENGTH = 55m)
TRAFFIC SIGNAL
(INDICATIVELY)
TRAFFIC SIGNAL
(INDICATIVELY)
ECTON
BROOK
TEMPORARY BRIDGE
LOCATION
(ELV 50.45m)
EXISTING
FOOT
BRIDGE
EXISTING
FOOT
BRIDGE
RAMP
GRADIENT OF 1:12
RAMP
GRADIENT OF 1:10
6000
18300
25000
10500
FILTER DRAIN
CATCH PIT
AREA OF WORKS
150Ø SURFACE DRAIN
WITH FLAP VALVE AND
CONCRETE BAG HEADWALL
FILTER DRAIN
CATCH PIT
150Ø SURFACE DRAIN
WITH FLAP VALVE AND
CONCRETE BAG HEADWALL
APPROACH ROAD TO RAMP
TO BE DESIGNED BY OTHERS
- ** ISSUE FOR INFORMATION LP JH
INFORMATION
CONSTRUCTION (DESIGN AND
MANAGEMENT) REGULATIONS 2015
DESIGNERS HAZARD INFORMATION FOR
CONSTRUCTION
1. IF YOU DO NOT FULLY UNDERSTAND THE RISKS INVOLVED DURING THE
CONSTRUCTION OF THE ITEMS INDICATED ON THIS DRAWING ASK YOUR
MANAGER, HEALTH & SAFETY ADVISOR OR A MEMBER OF THE DESIGN TEAM
BEFORE PROCEEDING.
2. WORKING IN WATER.
3. WORKING ON LIVE CARRIAGE WAY.
THE ABOVE NOTES REFER SPECIFICALLY TO THE INFORMATION SHOWN ON
THIS DRAWING.
REFER TO THE HEALTH AND SAFETY PLAN FOR FURTHER INFORMATION.
NOTES
1. THIS DRAWING IS TO BE READ IN CONJUNCTION WITH ALL RELEVANT
ENGINEER'S, ARCHITECT'S AND SPECIALIST'S DRAWINGS AND THE
SPECIFICATION.
2.
DO NOT SCALE
FROM THIS DRAWING MANUALLY OR
ELECTRONICALLY. WRITTEN PERMISSION MUST BE OBTAINED FROM MLM
PRIOR TO SCALING ELECTRONICALLY OR USING THIS ELECTRONIC FILE.
3. FOR SECTION A-A, REFER TO DWG No. 617276-DWG-CIV-006.
North Kiln, Felaw Maltings, 46 Felaw Street,
Ipswich, Suffolk IP2 8PN
Tel: 01473 231100
Website: www.mlm.uk.com
Multidisciplinary Consulting
COPYRIGHT © MLM CONSULTING ENGINEERS LTD
Drawing Title
Project
Client
Drawing Status:
Issue Date Description CheckedMade
Drawn/Design Date
Checked Approved
Scales
Drawing No.Rev
ANGLIAN WATER SERVICES LTD HUNTINGDON
PE29 6SZ
GREAT BILLING MINERAL WORKS
ECTON BROOK CROSSING
SITE LOCATION
PLAN VIEW
LP/JH
JH IH
JUNE 2016AS SHOWN
617276-DWG-CIV-005-
@ A1
600
800
1000 300 1000
2300
5000
NOT TO SCALE
REINFORCED CONCRETE BANKSEAT DETAIL
BRIDGE
℄
50.39m AOD
WL 48.5
50.39m AOD
51.19m 51.19m
50.14m
49.15m
49.80m
BEARING
℄BEARING
℄18300 SPAN 2503010550
PROPOSED REINFORCED CONCRETE
BANKSEAT (PILED) - REFER TO DETAIL
MABEY COMPACT 200 BRIDGING
18.3m SPAN
MODULE LENGTH 3.048m
1 IN
12
1
IN
1
0
1 IN 3
0
8no. 250mm SQUARE DRIVEN PILES
10m LONG
SCALE 1:100
SECTION A-A
50.39m AOD
3270
EXISTING FOOTPATH
EGL
50.03m
EGL
1890
THE APPROACH ROAD TO
RAMP TO BE DESIGNED
BY OTHERS
50.39m AOD
WL 48.5
50.39m AOD
51.19m 51.19m
1 IN
12
1
IN
1
0
50.39m AOD
1890
BRIDGE
℄
EGL
BEARING
℄ BEARING
℄
PROPOSED REINFORCED CONCRETE BANKSEAT
(PILED) - REFER TO DETAIL
MABEY COMPACT 200 BRIDGING
18.3m SPAN
MODULE LENGTH 3.048m
DRIVEN PILES
SCALE 1:50
DETAILED ELEVATION OF BRIDGE
B
B
EGL
SCALE 1:20
SECTION B-B
3.4m ROAD WIDTH
3.759m CLEARANCE
5.029m OVERALL
BRACING FRAME
SUPER PANELS
KERB
SWAY BRACING VERTICAL BRACING TRANSOM
STEEL DECK UNITS
(WITH DURBAR OR FACTORY
APPLIED ANTI-SKID SURFACE)
SQUEEZED-IN ARMCO
BARRIER (OPTIONAL)
HEAVY DUTY CHORD REINFORCEMENT
AS DICTATED BY CONSTRUCTION
VERTICAL FRAME
BRIDGE
℄- ** ISSUE FOR INFORMATION LP JH
Drawing Title
Project
Client
Drawing Status:
Issue Date Description CheckedMade
Drawn/Design Date
Checked Approved
Scales
Drawing No.Rev
ANGLIAN WATER SERVICES LTD HUNTINGDON
PE29 6SZ
GREAT BILLING MINERAL WORKS
ECTON BROOK CROSSING
SECTIONS A-A & B-B,
DETAILED ELEVATION OF
BRIDGE, REINFORCED
CONCRETE BANKSEAT DETAIL
LP/JH
JH IH
JUNE 2016AS SHOWN
617276-DWG-CIV-006-
@ A1
INFORMATION
CONSTRUCTION (DESIGN AND
MANAGEMENT) REGULATIONS 2015
DESIGNERS HAZARD INFORMATION FOR
CONSTRUCTION
1. IF YOU DO NOT FULLY UNDERSTAND THE RISKS INVOLVED DURING THE
CONSTRUCTION OF THE ITEMS INDICATED ON THIS DRAWING ASK YOUR
MANAGER, HEALTH & SAFETY ADVISOR OR A MEMBER OF THE DESIGN TEAM
BEFORE PROCEEDING.
THE ABOVE NOTES REFER SPECIFICALLY TO THE INFORMATION SHOWN ON
THIS DRAWING.
REFER TO THE HEALTH AND SAFETY PLAN FOR FURTHER INFORMATION.
NOTES
1. THIS DRAWING IS TO BE READ IN CONJUNCTION WITH ALL RELEVANT
ENGINEER'S, ARCHITECT'S AND SPECIALIST'S DRAWINGS AND THE
SPECIFICATION.
2.
DO NOT SCALE
FROM THIS DRAWING MANUALLY OR
ELECTRONICALLY. WRITTEN PERMISSION MUST BE OBTAINED FROM MLM
PRIOR TO SCALING ELECTRONICALLY OR USING THIS ELECTRONIC FILE.
3. TO BE READ IN CONJUNCTION WITH DWG No. 617276-DWG-CIV-005.
North Kiln, Felaw Maltings, 46 Felaw Street,
Ipswich, Suffolk IP2 8PN
Tel: 01473 231100
Website: www.mlm.uk.com
Multidisciplinary Consulting
COPYRIGHT © MLM CONSULTING ENGINEERS LTD
E
E5
5
#
#.
.
.
.
Source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AEX, Getmapping, Aerogrid, IGN, IGP, swisstopo, and the GISUser Community, Esri, HERE, DeLorme, MapmyIndia, © OpenStreetMap contributors, and the GIS user community
481163 481413 481663 481913 482163 482413 482663 482913 483163 483413 483663 483913 484163 484413 484663
2609
9826
1248
2614
9826
1748
2619
9826
2248
2624
9826
2748
COPYRIGHT © MLM CONSULTING ENGINEERS LTD
MLM
0 290 580145Meters
Drawing Title
Drawn/DesignChecked
DateApproved
Scales @A1@A3
Drawing No.
Drawing Status:
Client:
Project
Rev DescriptionDate Made Ckd
Coordinate System: British National GridUnits: Meter
1:9,000Scale:
RIPARIAN MAMMAL SURVEY RESULTS (2016)FINAL ISSUE
ANGLIAN WATER SERVICES LTDGREAT BILLING MINERAL EXTRACTION
SITE 773939-DWG-ENV-001 .
JTEG
SEPT 2016AC
NTS1:9000
Legend. Otter sprainting area# Vantage points5 Otter feeding signsE Cameras
NOTES1. THIS DRAWING IS TO BE READ IN CONJUNCTIONWITH ALL REVELANT ENGINEERS, ARCHITECTS ANDSPECIALISTS DRAWINGS AND THE SPECIFICATION2. DO NOT SCALE FROM THIS DRAWING MANUALLYOR ELECTRONICALLY, WRITTEN PERMISSION MUST BE OBTAINED FROM MLM PRIOR TO SCALINGELECTRONICALLY OR USING THIS ELECTRONIC FILE.
1
2
1
2
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