Halcrow Group Limited
A CH2M HILL COMPANY
Burderop Park Swindon Wiltshire SN4 0QD
Tel +44 (0)1793 812479 Fax +44 (0)1793 812089
www.halcrow.com
Technical note
Project South Bristol Link Date 22 April 2013
Note Utilities Report Ref CTREAB/730/HIG/TN/11
Author Emma Basketter Rev A
Reviewed Philip Paterson
1 Introduction
C2 enquiries were issued in July 2012 for the statutory undertakers in South
Bristol and North Somerset and returns were received between August and
December 2012. A schedule of interfaces stating the affected apparatus
along the South Bristol Link (SBL) was produced once a utility drawing was
complete with the latest SBL route (dated 6th March 2013). The locations of
the utilities shown are approximate as they have been translated from the
drawings provided by the utility companies to CAD by hand. The cover
depths in the schedule of interfaces have been taken from the NJUG
guidelines.
There are 5 utility drawings CTRAEB/730/HIG/130-134 to be read in
conjunction with this technical note. These are included in Appendix A.
2 Utilities identified
The following utilities have been identified as being present.
Utility Company Details
Gas Wales & West Utilities Low pressure
Electricity Western Power
Distribution
High voltage (11kV)
Low voltage
Wessex Water Sewer, Surface water and
Drain
Water
Bristol Water Water mains and Ducts
Review of Utilities
Project: South Bristol Link Author: Emma Basketter
Virgin media Fibre optic cable
BT Openreach Fibre optics un-
identifiable at C2 stage,
but may be present
BNet Fibre optic cable
Cable and Wireless Fibre optic cable
Instalcom (Global
Crossing and Fibernet)
Fibre optic cable
Telecommunications
Verizon Fibre optic cable
Further details of each utility such as plant type, size, material and depth can
be found in the schedule of interfaces, included in Appendix B.
3 Impacts
Ch. 100. Wessex Water sewer (See drawing CTRAEB/730/HIG/130)
A sewer passes beneath the line of the SBL, but given that the SBL will only
be on a shallow embankment at this location, no significant impacts are
anticipated. The depth of the sewer will need to be confirmed.
Ch. 300. Western Power timber post converting High Voltage cable
from overhead to underground (See drawing CTRAEB/730/HIG/130)
The timber post will need to be relocated as the SBL route and bridge are in
conflict with its existing location. It may be more suitable to resite to the
south so that the service cable runs under the carriageway rather than
above.
Ch. 500 to 800. Western Power Distribution HV and Bristol Water
main (See drawings CTRAEB/730/HIG/130 and 131)
The utilities will be located under the construction of the new embankment.
This will exert additional pressures over the pipe and cable and provide an
obstacle to the utility companies for access purposes.
Review of Utilities
Project: South Bristol Link Author: Emma Basketter
Diversion would be costly and they would still have to pass beneath the bus
link and the industrial access as a minimum. Concrete slab protection over
the utilities or culverting may be more suitable to install in this case and this
will require further discussion with Western Power and Bristol Water.
Trading Estate Access Bristol Water main and Wessex Water surface
water drain
A Bristol Water main will run under the access road to Ashton Vale trading
estate. This area will contain an embankment, which will increase the cover
depth of the pipe. Diversion would not be suitable at this location, so
investigation to the pipes depth, and liaison with Bristol Water, is required
to establish if the pipe should be concrete slab protected. The Wessex
Water surface water drain will be protected by a new culvert construction.
Ch. 1000 and 1050-1100. Bristol Water ducts (See drawing
CTRAEB/730/HIG/131)
Shallow cuts into the ground at these locations mean that the cover depth
to the Bristol Water service will be reduced. The depths of these ducts will
need to be confirmed to establish if any remedial works are required.
Ch. 1150 to 1320. Bristol Water main and Wessex Water sewer (See
drawing CTRAEB/730/HIG/131)
An embankment through this location will add to the cover depth and exert
additional pressure over these utilities. The utilities could either be diverted
or concrete slabs could be installed over the pipes to protect them from the
embankment weight. A diversion to the east will mean that the services run
very close to Colliter’s Brook.
Ch. 1570 to 1600 Wessex Water sewer (See drawing
CTRAEB/730/HIG/131)
A foul drain crosses the SBL at which there will be a slight embankment on
one side and a retaining wall on the other. Due to the construction of the
retaining wall the pipe will require lowering or diversion. The pipe can be
protected by a concrete slab or lowered with no change to the existing
route. The pipe can also be diverted to run (East) alongside the SBL to
Ch.1700 where it can cross beneath the embankment and carriageway to re-
join the existing route. The pipe may require protective measures, such as a
Review of Utilities
Project: South Bristol Link Author: Emma Basketter
concrete slab, for the SBL construction over the drain. However if diverted
it can be constructed to carriageway construction NJUG guidelines without
requiring the protective slab.
Ch. 2000 Bristol Water, BT, Cable and Wireless and Instalcom (See
drawing CTRAEB/730/HIG/132)
Utilities run along the route of the A38 in the carriageway, verge and
footway in the vicinity of the new roundabout arrangement. The water
mains and BT cables contained in the carriageway are not envisaged to be
of concern as they should exist at a safe carriageway depth, but if this is
found not to be the case, with the works that are to take place, they should
be lowered or protected by a concrete slab. The telecommunications in the
verge and footpath are likely not to be at the required minimum carriageway
construction depth so diversion of these should be considered. Due to the
nature of fibre optics and the difficulty and expense to divert or lower them,
it may be more suitable to protect these with a concrete slab.
Ch. 2820 to 3080 BT, Wales and West, Western Power, Bristol Water,
Virgin Media and B-Net (See drawing CTRAEB/730/HIG/133)
Telecoms (BT and B-Net), Gas and LV power (assumed to supply the
lighting columns) lines are contained in the existing Highridge common
verge. This strip will be located in the centre of the SBL carriageway. As
these utilities are unlikely to exist at the safe carriageway construction depth
they may require diversionary measures. These include a diversion further
into Highridge common, lowering to the advised carriageway cover depth,
or concrete slab protection.
There are also telecommunications, water and overhead power lines along
the footway of Highridge Green. The depth of the underground services
will need to be measured to determine if any diversionary measures are
required for the construction of the new footway, but utilities should exist
at a safe footway cover depth. Overhead power lines should not be of
concern.
Review of Utilities
Project: South Bristol Link Author: Emma Basketter
Ch. 3080 Bristol Water, Wessex Water, Western Power, Wales and
West, BT, B-Net and Virgin Media (See drawing
CTRAEB/730/HIG/133)
The majority of the utilities are below ground in the area of King Georges
road and Highridge Green junction. It may be suitable to convert the
overhead LV and BT cables crossing the junction to an underground
service.
The pipes/cables along Highridge road should have adequate cover depths
for the pedestrian crossing construction. However, the 4 water mains on the
corner of Highridge Common will require further investigation. This corner
of Highridge Common also includes several utility service boxes, which will
also require consideration.
Ch. 3090 – 3530 Wales and West, Western Power Distribution, Wessex
Water, Bristol Water, Virgin Media, BT Openreach, B-Net and Cable
and Wireless (See drawing CTRAEB/730/HIG/133)
The majority of these utilities are below ground in the footways and verge
of King Georges road. There will be a considerable amount of construction
works along this road in widening the carriageway and installing new verge
and foot/cycle ways. The existing cover depths will determine if lowering of
the pipes/cables is required for the new construction depths.
The main concern for King Georges Road are the Bristol Water mains and
telecommunications B-Net and BT cables currently found in the existing
carriageway and verge. The Bristol Water mains running in the carriageway
will not be affected if this section of the road is resurfaced rather than full
depth construction. However the water main and telecommunication lines
in the verge, which is to become carriageway, may require lowering or
diversion further into the verge. It would be preferable to keep the existing
line of the utilities and lower to the advised carriageway cover depth.
Landscaping and installation of new trees in the verge should avoid clashing
with the utilities and follow egress guidance set by the companies.
It should be noted that the telecommunications contain fibre optic cabling,
which is difficult and expensive to divert due to the nature of the cables.
Review of Utilities
Project: South Bristol Link Author: Emma Basketter
Ch. 3540 Wales and West, Bristol Water, Wessex Water, Verizon, BT,
B-Net and Western Power (See drawing CTRAEB/730/HIG/133)
The construction of the pedestrian crossing points may have an impact on
the Bristol Water mains/duct and Wessex Water sewer and surface water
drain. These services will require further consideration and discussion with
utility companies.
Ch. 3580 Wessex Water, Bristol Water and Western Power (See drawing
CTRAEB/730/HIG/134)
A Wessex Water surface water drain (Culvert) crosses the SBL and bus
stops. This will be protected by the installation of a malago structure. The
Bristol Water mains in this area may also require lowering or protection for
the carriageway construction. There are four HV cables in the area; two of
which cross under the new bus stop, and two directly beneath the
landscaping. The cables could be diverted to avoid interference. The tree
locations will be adjusted as they are currently above an existing water
storage tank.
Ch. 3550 – 4040 Wessex Water, Bristol Water and Western Power in
the reserved corridor
The utilities run along the alignment of the SBL and there is a concentrated
collection at Ch. 3880. Depths will need to be determined to fully assess
impacts. The greening along the protected corridor may interfere with HV
cables, surface water drains, mains water supply and foul drains. The
proposed positions of the trees will be considered at the next stage of
design to avoid as much as possible the utility services in this area.
Ch. 4150 Bristol Water, Wessex Water, Western Power, Wales and
West, BT and Virgin Media (See drawing CTRAEB/730/HIG/134)
These utilities are located within the existing footways of Hareclive Road. It
may be necessary to lower the services in the vicinity of the new pedestrian
crossing island.
The gas pipe crosses Hareclive Road at the junction. This may mean that
adequate carriageway cover depth has been provided. However it may also
be appropriate to consider repositioning the gas main away from the
crossing for the ease of future access for the utility company.
Review of Utilities
Project: South Bristol Link Author: Emma Basketter
Hareclive road bus stops Wales and West, BT, Bristol Water, Western
Power and Virgin Media (See drawing CTRAEB/730/HIG/134)
The alterations to be made to the alignment of the existing kerb lines may
affect the utilities found in the footpaths. A Wales and West gas line runs
very close to the existing western kerb edge meaning that diversionary
measures may be required. While a Virgin Media cable and LV line are close
to the proposed kerb line on the east side. The exact locations and depths
of these utilities will need to be investigated.
Ch. 4260 – 4454 Wessex Water, Bristol Water, BT, Wales and West,
Western Power and Virgin Media (See drawing
CTRAEB/730/HIG/134)
The Wessex Water surface water drain and Western Power LV cable in the
existing grass area beside Whitchurch Road may require lowering or
diversion for the new carriageway as they are unlikely to be at carriageway
cover depth.
A BT line crosses the SBL at 2 locations, and runs in the grass area. This
may require lowering or diverting if not at carriageway cover depth where
the grass area will be new carriageway construction.
Gas and Water mains crossing the carriageway at several locations should
exist at carriageway construction and are not envisaged to be of concern.
However these services should be checked to confirm their situation.
Ch. 4260 CCTV camera (See drawing CTRAEB/730/HIG/133
A CCTV camera is located beside a lighting column (No. 10) on
Whitchurch Lane. The SBL carriageway will be in conflict with the location,
so the camera and pole will require relocation.
Wessex Water Underground water storage tanks in the reserved
corridor (See drawing CTRAEB/730/HIG/133 and 134)
There are two storage tanks within the reserved corridor which must be
avoided. The approximate position of the tank at Queens Road junction is
shown on the drawings with the exact position to be confirmed.
Review of Utilities
Project: South Bristol Link Author: Emma Basketter
4 Conclusion
A review has identified the likely impacts of the South Bristol Link on the
apparatus of the various utility companies.
Further investigation, by way of C3 enquiries and possibly trial pits, will be
required to confirm the exact nature of the potential impacts. During the
next design stage more specific information will be obtained and discussed
with the utility companies to provide an agreed decision on the diversionary
measures necessary for each individual location along the SBL.
Review of Utilities
Project: South Bristol Link Author: Emma Basketter
Appendix A – Utility Drawings
A CH2M HILL COMPANY
100023397
Bristol City Council and North Somerset Council
Halcrow Group Limited
www.halcrow.com
Burderop Park, Swindon, Wiltshire, SN4 0QD
Tel +44 (0)1793 812479 Fax +44 (0)1793 812089
South Bristol Link
Utilities
Sheet 1 of 5
FOUL
SWD
DRAIN
GAS GAS
WM
WM
TEL TEL
BT
TEL TEL
TEL TEL
TEL TEL
TEL TEL
IMPORTANT WARNING: The existing utility
information shown on this drawing was
obtained from the relevant utility providers in
August-December 2012 and is shown as a
general guide only. No warranty to its
correctness is given or implied. The utility
information shown on the drawing should not
be relied upon in the event of excavations or
other works made near to the apparatus,
which may exist at various depths and may
deviate from the marked route. It should be
noted that a line shown on the plan may
indicate the presence of more than one cable,
duct or pipe. It is strongly recommended that
the Contractor seek the most up to date
services information from the utility providers
(prior to carrying out any works).
A CH2M HILL COMPANY
100023397
Bristol City Council and North Somerset Council
Halcrow Group Limited
www.halcrow.com
Burderop Park, Swindon, Wiltshire, SN4 0QD
Tel +44 (0)1793 812479 Fax +44 (0)1793 812089
South Bristol Link
70 80 90 10030100 20 40 50 60
SCALE 1:1250 (A1)
SCALE 1:2500 (A3)
METRES
BT
A CH2M HILL COMPANY
100023397
Bristol City Council and North Somerset Council
Halcrow Group Limited
www.halcrow.com
Burderop Park, Swindon, Wiltshire, SN4 0QDTel +44 (0)1793 812479 Fax +44 (0)1793 812089
South Bristol Link
PLANNING APPLICATION
UtilitiesSheet 2 of 5
70 80 90 10030100 20 40 50 60
SCALE 1:1250 (A1)SCALE 1:2500 (A3)
METRES
FOUL
SWD
DRAIN
GAS GAS
WM
WM
TEL TEL
BT
TEL TEL
TEL TEL
TEL TEL
TEL TEL
IMPORTANT WARNING: The existing utilityinformation shown on this drawing wasobtained from the relevant utility providers inDecember 2012 and is shown as a generalguide only. No warranty to its correctness isgiven or implied. The utility information shownon the drawing should not be relied upon inthe event of excavations or other works madenear to the apparatus, which may exist atvarious depths and may deviate from themarked route. It should be noted that a lineshown on the plan may indicate the presenceof more than one cable, duct or pipe. It isstrongly recommended that the Contractorseek the most up to date services informationfrom the utility providers (prior to carrying outany works).
A CH2M HILL COMPANY
100023397
Bristol City Council and North Somerset Council
Halcrow Group Limited
www.halcrow.com
Burderop Park, Swindon, Wiltshire, SN4 0QD
Tel +44 (0)1793 812479 Fax +44 (0)1793 812089
South Bristol Link
Utilities
Sheet 3 of 5
70 80 90 10030100 20 40 50 60
SCALE 1:1250 (A1)
SCALE 1:2500 (A3)
METRES
FOUL
SWD
DRAIN
GAS GAS
WM
WM
TEL TEL
BT
TEL TEL
TEL TEL
TEL TEL
TEL TEL
IMPORTANT WARNING: The existing utility
information shown on this drawing was
obtained from the relevant utility providers in
August-December 2012 and is shown as a
general guide only. No warranty to its
correctness is given or implied. The utility
information shown on the drawing should not
be relied upon in the event of excavations or
other works made near to the apparatus,
which may exist at various depths and may
deviate from the marked route. It should be
noted that a line shown on the plan may
indicate the presence of more than one cable,
duct or pipe. It is strongly recommended that
the Contractor seek the most up to date
services information from the utility providers
(prior to carrying out any works).
A CH2M HILL COMPANY
100023397
Bristol City Council and North Somerset Council
Halcrow Group Limited
www.halcrow.com
Burderop Park, Swindon, Wiltshire, SN4 0QD
Tel +44 (0)1793 812479 Fax +44 (0)1793 812089
South Bristol Link
Utilities
Sheet 4 of 5
70 80 90 10030100 20 40 50 60
SCALE 1:1250 (A1)
SCALE 1:2500 (A3)
METRES
FOUL
SWD
DRAIN
GAS GAS
WM
WM
TEL TEL
BT
TEL TEL
TEL TEL
TEL TEL
TEL TEL
IMPORTANT WARNING: The existing utility
information shown on this drawing was
obtained from the relevant utility providers in
August-December 2012 and is shown as a
general guide only. No warranty to its
correctness is given or implied. The utility
information shown on the drawing should not
be relied upon in the event of excavations or
other works made near to the apparatus,
which may exist at various depths and may
deviate from the marked route. It should be
noted that a line shown on the plan may
indicate the presence of more than one cable,
duct or pipe. It is strongly recommended that
the Contractor seek the most up to date
services information from the utility providers
(prior to carrying out any works).
A CH2M HILL COMPANY
100023397
Bristol City Council and North Somerset Council
Halcrow Group Limited
www.halcrow.com
Burderop Park, Swindon, Wiltshire, SN4 0QD
Tel +44 (0)1793 812479 Fax +44 (0)1793 812089
South Bristol Link
PLANNING APPLICATION
Utilities
Sheet 5 of 5
70 80 90 10030100 20 40 50 60
SCALE 1:1250 (A1)
SCALE 1:2500 (A3)
METRES
FOUL
SWD
DRAIN
GAS GAS
WM
WM
TEL TEL
BT
TEL TEL
TEL TEL
TEL TEL
TEL TEL
IMPORTANT WARNING: The existing utility
information shown on this drawing was
obtained from the relevant utility providers in
August-December 2012 and is shown as a
general guide only. No warranty to its
correctness is given or implied. The utility
information shown on the drawing should not
be relied upon in the event of excavations or
other works made near to the apparatus,
which may exist at various depths and may
deviate from the marked route. It should be
noted that a line shown on the plan may
indicate the presence of more than one cable,
duct or pipe. It is strongly recommended that
the Contractor seek the most up to date
services information from the utility providers
(prior to carrying out any works).
Review of Utilities
Project: South Bristol Link Author: Emma Basketter
Appendix B – Schedule of Interfaces
Utility company Address Contact detailsSENT BY
(E/L)SENT DATE DATE RECEIVED
AFFECTED
(Y/N)C3 budget estimate C4 detailed estimate?
General
CorrespondenceCURRENT STATUS
checked
on CAD
y
Bristol Water Plc
Bristol Water Plc
PO Box 218
Bridgwater Rd
Bedminster Down
Bristol
BS99 7AU [email protected] E 31/07/2012 08/08/2012 Y y
Wales and West Utilities
(British Gas)
Network Records Department
Wales & West House
Spooner close
Celtic Springs
Coedkernew
Newport
NP10 8FZ L 31/07/2012 22/08/2012 Y y
Western Power Distribution
Map Response Team
Mapping Centre Western Power
Distribution
Lamby Way
Mardy Ind Est.
Rumney Cardiff
CF3 2EQ [email protected] E 31/07/2012 17/08/2012 Y y
Wessex Water plc
Developer Services
Riverside, Chilton Trinity,
Bridgewater, TA6 3JS
Tel – 01823 225225
[email protected] E 31/07/2012 31/10/2012 Y y
BT Openreach
N/A
National Notice Handling Centre on
0800 1693849
or email:
[email protected] E 31/07/2012 27/08/2012 Y y
Cable & Wireless
The Plant Enquiry Team
ATKINS (working on behalf of
Cable&Wireless Worldwide)
The Hub, 500 Park Avenue,
Almondsbury, Bristol, BS32 4RZ
Tel: +44 (0)1454 662 881
Fax: +44 (0)1454 66330 L 31/07/2012 08/08/2012 Y y
Virgin Media
NRSWA Co-ordination
Cablephone house
Small Heath Business Park
Talbot Way Small heath
Birmingham
B10 0HJ 0870 8883116 L 31/07/2012 06/09/2012 Y y
Allcom (Level 3) (Now Instalcom)
Allcom (UK) Ltd
136 Hodges Street
Wigan
WN6 7JE [email protected] E 31/07/2012 31/10/2012 Y y
MCI WorldCom Ltd
(Verizon)
Plant Protection Officer - OSP &
Infrastructure.
UK Field Operations
01293 611736
[email protected] E 31/07/2012 Y
Gas Transportation Company
Energy House
Woolpit Buisness Park
Woolpit
Bury St Edmunds
Suffolk
IP30 9UP [email protected] E 31/07/2012 02/08/2012 N
Government Pipelines and
Storage System (GPSS) http://www.linesearch.org/ E 31/07/2012 N
KCOM
(Kingston communications)
KCOM Group PLC
5th Floor
Prospect House
Prospect Street
Hull
HU2 8PU [email protected] E 31/07/2012 10/08/2012 N
Envoy Asset Management
David Farmer
NRSWA requests Dept
Ocean Park House
East Tyndall Street
Cardiff
CF24 5GT [email protected] E 31/07/2012 01/08/2012 NWe had previous response. Second C2
issued 27/09/2012
City Fibre Holdings
516 Chadwick House
Warrington Road
Birchwood Park
Warrington
WA3 6AE
0333 150 7282
Street Works Co-ordinator
[email protected] E 31/07/2012 06/08/2012 N
Allcom (Level 3) [email protected] E 31/07/2012 Now Instalcom N
Bristol University Halls Network [email protected] E 31/07/2012 01/08/2012 N
SBL UTILITY SEARCH TRACKER (NRSWA)
EMAIL:
NORTH SOMERSET COUNCIL
BRISTOL CITY COUNCIL
1
Utility company Address Contact detailsSENT BY
(E/L)SENT DATE DATE RECEIVED
AFFECTED
(Y/N)C3 budget estimate C4 detailed estimate?
General
CorrespondenceCURRENT STATUS
checked
on CAD
SBL UTILITY SEARCH TRACKER (NRSWA)
Bristol Water PLC [email protected] E 31/07/2012 Y
Cable & Wireless UK [email protected] E 31/07/2012 08/08/2012 Y
Gamma Communications Ltd [email protected] E 31/07/2012 01/08/2012 N
Easynet Telecoms Ltd. [email protected] E 31/07/2012 Y AFFECTED, AWAITING RESPONSE
Mad attempts to contact company but
no response. 2nd C2 enq sent to
Bristol City Council [email protected] E 31/07/2012 Y Traffic Signals at junctions
Instalcom (Formerly Fibernet) [email protected] E 31/07/2012 31/10/2012 Y
Kcom (Formerly Affiniti) [email protected] E 31/07/2012 10/08/2012 N
Verizon Business [email protected] E 31/07/2012 24/10/2012 Y
BNET
BNET Network Client Services
CSS Romney House
Romney Avenue
PO Box 1380
Lockleaze
BRISTOL
BS99 3HB L 31/07/2012 09/08/2012 Y
Wessex Water Plc
Wessex Water PlC
The Developer’s Group
Claverton Down Road
Claverton Road
BATH
BA2 7WW L 31/07/2012 Y
Telewest Broadband
(Virgin) www.digdat.co.uk N/A Search date: 04/09/12 04/09/2012 Y
Colt Telecomms (Orange /
MayGurney) www.maygurney.co.uk N/A Search date: 04/09/12 04/09/2012 N
B.T. www.swns.bt.com/pls/mbe/welcome.home N/A N/A 10/12/2012 Y
Government Oil
& Esso Pipelines www.linesearch.org N/A Search date: 04/09/12 N
Western Power Distribution REGISTER N/A Search date: 04/09/12 Y
British Gas Transco (National Grid) www.linesearch.org N/A Search date: 04/09/12 N
Utility overlaps
Affected
Unaffected
Awaiting response
Allcom is now owned/operated by Instalcom
INTERNET:
OTHER:
LETTER:
2
Chainage locationType of plant- underground/
overhead?
Utility description - size,
material etcComments Potential Solution
Ch 590-800 Underground
30" PSC pipe
Equivalent to approx. 750mm dia
pipe
Runs along the edge of the carriage way in
area of fill. At Ch700 WM is in central
C'way
Redirect route or concrete slab
for additional pressure on pipes.
Ch 950 Underground
800mm DI pipe, 30" PSC pipe,
30" CI pipe all interconnected
north of the rail line
WM DOES NOT cross the road, but may be
cause for concern for proposed bridge
construction over railway.
N/A
Ch 1000 & 1080 Underground
Bristol Water Duct Crosses road at a skewed angle at these
chainages where the SBL has
embankments either side.
At embankment fill concrete slab
for additional pressure. Lower
duct at embankment cuts for SBL
construction.
Ch 1150-1320 Underground800 mm DI pipe, 30" CI pipe,
800mm PSC pipe all connecting
south of the rail line
Will run along the new embankment fill,
then cross SBL at 1320
Redirect route or concrete slab
for additional pressure on pipes.
Ch 2000 Underground
27" CI pipe, 20" CI pipe, 10" CI
pipe all running beneath the A38
carriageway.
3 WM lie centrally underneath A38. The
SBL crosses the A38. The crossroad
junction/roundabout will affect the
utilities, but this is not envisaged to be
significant.
Localised protection
Ch 2850-3030 UndergroundWM along Highridge Green road footpath.
N/A
Ch 3030-3050 UndergroundWM crosses road and runs along the
centre of the existing carriageway.
None- should be at carriageway
construction depth.
Ch 3080 UndergroundCrossing over of 2-4 WM from each road
meeting at the junction.
Lower if works for pedestrian
crossings interfer with service.
Ch 3080-3530 (3200,3250,3350) Underground
4 WM in verges/ footway/ carriageway of
King Georges road. This section of the SBL
through the existing King Georges Road
ought to avoid existing utilities present
beneath the carriageway.
Some utilities in the verge may
be lowered to avoid disruption
to services.
Ch 3530 UndergroundWM & Duct crossing at junction along
Queens road.
None- should be at carriageway
construction.
Ch 3530-4000 Underground
2 WM and a Duct run along the edge of the
SBL route. WM may clash with works
taking place for sound barrier construction.
WM cross SBL at several locations at
skewed angles.
Lower pipes on carriageway road
edge if not at adequate depth.
Ch 4100-4140 Underground
2 WM and a duct runs under new bus stop
area.
May require lowering if found to
be at inadequate depth.
Ch 4110-4140 UndergroundWM under new Bus Stop location Lower/ concrete slabunder bus
stop.
Ch 4140 Underground
Various pipes: 300mm AC pipes,
600mm AC pipes, 600mm PSC
pipes, 15" SI pipes in the
protected corridor.
WM crossing the proposed controlled
crossing along Hareclive road footway.
The pipes may require lowering
as in the proximity of extensive
works for the new crossings.
Whitchurch Lane Underground
WM crosses link road from Whitchurch
lane to SBL, and runs along existing
Whitchurch lane where new toucan
crossing will be installed.
N/A
Ch 4290-4454 (4420) Underground
4'' CI pipes, 6'' CI pipes, 600mm
AC pipes, 180mm MPDE pipes in
the protected corridor.
WM runs along North side of SBL, should
be at sufficient depth as currently installed
under existing carriageway. Crosses SBL at
4420. Some pipe connections cross the
route of the SBL including a 180mm MDPE
as it joins with the roundabout on
Hengrove Way
The utilities in these areas aren't
considerable and thus could be
lowered or diverted as
appropriate.
Cover depths: Footpath/ Verge 750mm
Roads 900mm
KEY Description
CI Cast Iron
PSC Prestressed Concrete
DI Duntile Iron
AC Asbestos Cement
DAV Double Air Valve
BRISTOL WATER
UTILITY KEY
Various pipes: 300mm AC pipes,
600mm AC pipes, 600mm PSC
pipes, 15" SI pipes in the
protected corridor.
Various pipes: 300mm AC pipes,
600mm DI pipes, 600mm AC
pipes, 15" SI pipes, 5" CI pipe 3"
CI pipe beneath King Georges
Road
3
HPPE High Pressure Poly Ethylene
MDPE Medium Density Poly Ethylene
SI Spun Iron
Large mains
A minimum clearance of 4m must
be maintained between the walls
of the pipelines and the footings
of any structure.0.5m from foundations of
boundary wall/ fence1.5m from footings of any
structure
TreesNo trees or large shrubs should be planted over or within 3.0 metres
of our apparatus, or the proposed route of our apparatus, unless
suitable root restriction methods are taken. If root restriction is to be
considered it should extend at least 1.5 metres below finished
surface level, in which case the minimum clearance between the
wall of our pipeline/apparatus and the root restrictor can be reduced
to 0.5 metres. Developers should consult an arboriculturist for
advice on the minimum clearances required between root protectors
and trees/shrubs.
Should our pipeline have to pass between two trees/large shrubs, a
minimum clearance of at least 3.0 metres must be maintained
between their respective boles, even where root restrictors are
installed.
Small mains
Easement strips are typically 5-10m wide.
EASEMENTS
Minimun clearance distances between pipes and structures
4
Chainage locationType of plant- underground/
overhead?
Utility description - size,
material etcComments Proposed Solution
Ch 2010 UndergroundTelecomms - fibre optics
encased in polyethelene
Two lines running through the centre of the
new roundabout. Lie in existing verge and
carriageway edge. The depth of these pipes
are unknown at this stage, but based on NJUG
guidelines this is likely have a depth of
between 450-600mm in carriageway and 250 -
350mm in verge.
Fibre optics are difficult to divert or lower due to the
nature of the cables. As such the proposed junction
on the A38 should avoid any works that might affect
the cables. Pavement depths for the SBL have not
been designed at this stage but a min. of 450mm
likely.
CABLE AND WIRELESS
5
Chainage locationType of plant- underground/
overhead?Utility description - size, material etc Comments Potential Solution
Ch 100 Underground
Twin foul sewer pipes 300& 375mm
dia
The depth of these pipes are unknown at this
stage. Crosses road almost at 90 degrees
Concreteslab to resist additional
pressure from SBL and small
embankment.
Industrial access (Ch 740) Underground Culvert 2.3m dia. Crosses access road Concrete slab to protect pipe
Ch 1150-1300 Underground
Foul sewer pipe 225mm dia. Sewer pipe runs along SBL verge
(embankment fill)
Concrete slab to resist additional
pressure from embankment or divert.
Ch 1570-1580 Underground
Foul sewer pipe 225mm dia. Crosses SBL at an angle The pipe will need to be diverted or
lowered as earthworks will be
lowered in this section.
Ch 3090-3100 Underground
2 x Surface water sewer 225mm dia
and Foul sewer pipe 225mm dia.
Pipes cross SBL on Highridge road connecting
2 surface manholes and 1 foul manhole at the
Highwridge Green junction
Diversions or lowering of pipes may
be required depending on depths
where new pavement is being
constructed.
Ch 3100 -3330 (Ch 3210, 3340) Underground
Surface water sewer 225mm dia and
foul sewer pipe 150mm dia.
Pipes run in the verge/footway of King
George's Road and cross the road at chains in
brackets.
N/A
Ch 3500 - 3520 Underground
Surface water sewer 225mm dia Pipe runs in the footway/verge along King
George's Road.
N/A
Ch 3530 Underground
2 x Surface water sewer 225mm dia
and Foul sewer pipe 225mm dia.
3 pipes crossing Queens road and 2 pipes
running along Queens road.
Consider lowering of pipes at new
pedestrian crossing points if
construction depths clash with utility
depth.
Ch 3580 Underground
Foul sewer pipe 225mm dia, surface
water sewer pipe 300mm dia,
culverted water course pipe, large
underground attenuation tank
SBL must avoid the existing Wessex
Water underground storage tank
located in the protected corridor
area.
Ch 3770-4950 Underground
Network of pipes consisting of foul
sewer pipe 150mm dia, surface water
sewer pipe 225mm dia, drain pipe
unknown dia, large underground
attenuation tank.
Another foul sewer pipe 225mm dia
and surface water sewer pipe 675mm
dia connecting to manholes and
underground storage tank.
SBL must avoid the existing Wessex
Water underground storage tank.
Alignment to continue south of
ungerground tank. Some connecting
pipes will be affected.
Ch 4110 UndergroundSurface water sewer pipe unknown
dia-possibly 225mm Single pipe crosses the SBL and new bus stop.
N/A
Ch 4180 UndergroundSurface water sewer pipe unknown
dia-possibly 225mm Single pipe crosses the SBL at this location
N/A
Ch 4190 UndergroundFoul sewer pipe 225mm dia, surface
water sewer pipe 225mm dia,
manholes Exiting sewer pipes on Hareclive Road
N/A
Ch 4280-4454 (Ch4290, 4320,
4350, 4395)Underground
Foul sewer pipe 150 & 225mm dia,
surface water sewer pipe 150 &
225mm dia
SWD runs along new carriageway. SWD and
Foul pipes cross SBL at chains in brackets.
Pipes to be lowered or diverted if
found to be at inadequate depths.
WESSEX WATER
There is a major pipe network in this area with
a large underground attenuation tank. The
costs to relocate/divert this network of utilities is
estimated be extremely high.
6
Chainage locationType of plant- underground/
overhead?
Utility description - size,
material etcComments Potential Solution
Ch 180 Overhead HV Overhead cable N/A
Ch 300 Overhead to underground HV Overhead cable. There could be a timber
electricity post in the vicinity due to the change in
direction of the overhead cable. The cable
appears to transition into an underground cable
Relocate post at a safe distance from
the SBL. Alternatively, realign route
depending on cost?
Ch 505 Underground HV In vicinity of field access N/A
Ch 520 - 800 Underground HV This underground cable crosses runs under a
section of fill embankment for the SBL. Depth is
estimated to be between 450 -1200 mm below
ground.
Concrete slab or divert around
embankment, or leave as existing.
Ch 960 Underground LV This underground cable crosses the SBL in
proximity of proposed bridge over railway. Depth
is estimated to be between 450 -1200 mm below
ground.
N/A
Ch 2680 Overhead HV Crosses over SBL N/A
Ch 2820-3080 Overhead & Underground LV Overhead cable along verge. Underground the
centre line of the SBL estimated depth between
450 - 1200mm below ground.
Consider lowering LV underground if
carriageway construction depth
interfers with cables.
Ch 3085 Overhead LV Overhead cables connecting to properties Affected electricity cable to be
relocated or changed to underground
cables
Ch 3090 - 3520 (Ch 3160, 3340,
3400)
Underground HV & LV Cables running in the verge/footway along SBL/
King Georges Road. Small service connections
to street lighting columns. LV cross underneath
SBL at chains in brackets.
N/A
Ch 3540, 3550 Underground HV & LV LV cables crossing the SBL/ King Georges Road
at 90 degrees. 2 X HV crossing Queens road at
pedestrian crossing.
Relocate or lower cables due to
extensive crossing works
Ch 3550-3600 Underground 4 X HV Cables in verge and crossing under proposed
bus stop position.
Concrete slab underneath new bus
stop
Ch 3850-4000 Underground 2 X HV HV cables in the SBL verge, carriageway and
central reserve along the protected corridor in
close proximity to the sound barrier at Ch 3880.
Consider concrete slab or lowering if
not at carriageway construction depth.
Ch 3890 Underground HV Crosses under SBL and under sound barrier. Consider concrete slab or lowering if
not at carriageway construction depth.
Ch 4100-4150 Underground HV HV under the proposed bus stop on SBL in the
reserved corridor. Crosses SBL at 4140.
N/A
Ch 4180 Underground 2 X HV & 1 PL cable ( <1kV ) HV cables and a PL cable running in the verge
on Hareclive Road. HV cross the road at a
skewed angle at CH.4200. PL cable crosses
SBLat crossing point.
N/A
Ch 4290-4454 (Ch 4280, 4320,
4340, 4450)
Underground LV LV running under SBL on Whitchurch Lane and
crossing at chains in brackets
N/A
KEY Description
LV Low voltage
HV High voltage- 11kV
HV 1 High voltage- 33kV
HV 2 High voltage- 66kV
HV 3 High voltage- 132kV
WESTERN POWER
UTILITY KEY
7
Chainage locationType of plant- underground/
overhead?
Utility description - size,
material etcComments Potential Solution
Industrial access- Brook Gate Underground Near to the new access location uner the footpath Not envisaged to be of concern
Ch 2920 - 3080 Underground LP 63 PE and 90 PE
The existing gas pipes run along the edge of
Highridge Green, which will be constructed to new
carriageway.
None- should exist at adequate
depth
Ch 3080 UndergroundLP Pipe from Highridge road 6"
ST Cross SBL at Highridge road junction. Lower/slab if found not to be at
carriageway construction depth.
Ch 3080-3520 Underground
LP King Georges road - north
side 180 PE (IN 8" SI) - south
side 75 PE (IN 4" SI). Crossing
pipes 125 PE (IN 6" SI)
Existing gas pipes run along King Georges Road/ SBL
on either side in the verges of the new road. Some of
the gas pipes cross over at Ch3210, Ch3350 and
Ch3450.
N/A
Ch 3530 Underground LP 125 PE and 8" ST Existing gas pipes runs along Queens Road. None- should exist at adequate
depth
Ch 4150 UndergroundLP 12" SI, off this pipe 6" CI, 6"
SI and 180 PE
Pipes along Hareclive road cross SBL at new
junction.
Divert/lower if crossing works
affect pipes.
Ch 4300 Underground LP 90 PE
Ch 4320 Underground LP 75 PE (IN 4" CI)
Ch 4390 Underground LP 63 PE (IN 4" CI)
Pipe depth estimated to be a min of 750mm below carriageway
construction based on NJUG guidelines
KEY Description
LP Low Pressure
CI Cast Iron
PE Poly Ethylene
SI Spun Iron
ST Steel
Mechanical Excavation 3m (1m in respect of LP mains)
Piling/ Boring 15mWelding or other hot works
involving naked flame 15m
Hydraulic testing 8m
Explosives 250m
EASEMENTS
WALES AND WEST
UTILITY KEY
Crosses new road at these chains and runs along the
edge of the road between these chains.
Lower/slab if found not to be at
carriageway construction depth.
8
Chainage locationType of plant- underground/
overhead?Jan-13
Utility description - size,
material etcComments Proposed Solution
Ch 940 UndergroundFibre optics run underneath the
railway
None required as SBL bridge
construction over the railway should
not affect this area.
Ch 2000 Underground
Fibre optics run underneath
existing carriageway (A38) at
location of proposed new
roundabout layout.
Fibre optics are difficult to divert or
lower due to the nature of the
cables. As such the proposed
junction roundabout on the A38
should avoid any works that might
affect the cables. Pavement depths
for the SBL have not been designed
at this stage but a min. of 450mm is
likely.
INSTALCOM - GLOBAL CROSSING AND FIBERNET
Actual depths are unknown at this
stage but it is noted that normal
depth of cover for apparatus and
ducts are as follows: Carriageways
600mm Footways
350mm Verges
450mm
Telecomms - fibre optics
encased in polyethelene
Mechanical borers and/or excavators shall not be used within 1m of
apparatus
EASEMENTS
9
Chainage locationType of plant- underground/
overhead?
Utility description - size,
material etcComments Proposed Solution
Ch 3520 Underground
VZB Backbone fiber duct in
carriageway /footway. In vicinity
of proposed pedestrian
crossings.
The depth of these pipes are unknown at
this stage, but based on NJUG guidelines
this is likely to have a depth in
carriageway of 450-600mm and a depth
in verge of 250-350mm
SBL route will mean that existing
footway will be carriageway
construction. Lowering ducts
may be necessary as existing
depth is likely to be less than the
required 600mm.
VERIZON
10
Chainage locationType of plant- underground/
overhead?
Utility description - size,
material etcComments Proposed Solution
Industrial access, Brook Gate
new junctionUnderground Under existing footway and accesses
Ch 2000 Underground
3 Cables along A38, 2 in carriageway (cottage
side), 1 in the verge the opposite side. The
crossroad junction/roundabout will affect the
utilities, but this is not envisaged to be
significant.
Utilities can be lowered to avoid
disruption to services.
Ch 2820-3080 UndergroundTwo cables run in the verges either side of the
existing route of Higridge Green.
Consider diversion/lowering of
cables where the SBL
carriageway construction and
bus stop is positioned along
existing verge.
Ch 3080-3090 UndergroundCrossover of cables from joining roads in
vicinity of new pedestrian crossing
Consider diversion/lowering
where the new crossings are
located in positions of existing
verge/footway.
Ch 3100-3520
(3210,3210,3350,3280,3360)Underground
Run along verges and in the carriageway,
crosses road at chains indicated in brackets.
None- Verge is remaining verge
and cables should exist at
adequate carriageway cover
depth.
Ch 3530 UndergroundUnder the carriageway in location of new
pedestrian crossings
Ch 3900 Underground
Runs around the end of Gate House close.
Location of cable would need to be checked as
it may interfere with the sound barrier
construction.
Unlikely to be cause for concern.
If found to clash with sound
barrier, consider realignment of
the barrier.
Ch 4110 UndergroundCable crosses SBL in protected corridor, in
vicinity of new bus stop
Lower cables. However cable
runs from road to road- may be
at carriageway depth.
Ch 4140 Underground In vicinity of new crossings of Harclive roadNone- Cables should be at
carriageway construction depth.
Whitchurch lane
Ch 4280Underground
Runs along Whitchurch road verge and
carriageway and joins SBL at 4300 crossing at a
skewed angle.
None- Cables should be at
carriageway construction depth.
Ch 4350 Underground Crosses SBL
None- Crosses existing road so
should be at carriageway
construction depth.
Ch 4400-4454 UndergroundCrosses at skewed angle over existing
carriageway construction.
None- Cables should be at
carriageway construction as
existing.
The depth of these pipes are unknown at this
stage, but based on NJUG guidelines this is
likely have a depth on carriageway of 450-
600mm and a depth on verge of 250-350mm
BT
EASEMENTS
To avoid damage it is recommended that mechanical
excavators or borers are not issued within 600mm of BT
Cables in grey uPVC ducting
50-90mm diameter. Fibre
optics may be present but are
not identifiable at this stage.
11
Chainage locationType of plant- underground/
overhead?
Utility description - size,
material etcComments Proposed Solution
Industrial estate access, Brook
gate bendUnderground Runs along existing footway
Ch 2890-3100 UndergroundRuns along the footway of Highridge
Green
Ch 3100 UndergroundIn the vicinity of new crossing points
on Highridge road
Ch 3100-3550 UndergroundRuns along the existing footways of
King Georges road
Ch 4180 UndergroundIn vicinity of new pedestrian crossings
on Hareclive road.
Whitchurch lane Ch
4300-4454Underground
Runs along the footway of Whitchurch
lane and under a new build out at the
junction at which Whitchurch lane
joins SBL at Ch 4300
VIRGIN
Fiber optic cable. The
depth of these pipes are
unknown at this stage, but
based on NJUG guidelines this
is likely have a depth of 450-
600mm in the carriageway and
a depth of 250-350mm in the
footway.
Fibre optics are difficult to divert
or lower due to the nature of the
cables. As such the proposed
construction should avoid any
works that might affect the
cables. If SBL is found to clash
with the cables and no other
solution can be found then
cables would require lowering or
diverting.
12
Chainage locationType of plant- underground/
overhead?Utility description - size, material etc Comments Proposed Solution
Ch 2980 Underground Crosses SBLNone- Should be at adequate
depth.
Ch 2980-3100 UndergroundRuns under new carriageway and bus stop
location.
Fibre optics are difficult to
divert or lower due to the
nature of the cables. As such the
proposed bus stop should avoid
any works that might affect the
cables.
Ch 3100-3550 Underground
Runs along King Georges road under existing
verge (South). This will be new carriageway
construction.
Fibre optics are difficult to
divert or lower due to the
nature of the cables. As such the
proposed works should avoid
any works that might affect the
cables.
B-NET
Plastic Ducting containing Fibre Optic
cabling at a depth of 450mm to the top
and there should be one duct.
13