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P
U
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5
V
C
F
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C
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PU 375 CO C
P
U
3
7
5
C
O
C
PU
450 B
R S
PU
450 B
R S
P
U
1
5
0
V
C
C
PU
150 V
C C
IL 6.025
0
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S10
S8
450Ø
S
W
S
ew
er @
1/??
BuildingRidge level = 17.21Eaves level = 14.08
BuildingRidge level = 17.05Eaves level = 13.41
BuildingRidge level = 13.82Eaves level = 12.67
BuildingRidge level = 17.53Eaves level = 15.17
BuildingRidge level = 16.49Eaves level = 14.46
BuildingRidge level = 19.30Eaves level = 16.01
S11
Existing 450Ø Sewer to be
diverted into carriageway
225Ø
H
ighw
ay
Drain @
1/??
CL = 9.301
CL = 9.435
CL = 9.402
CL = 9.073
450Ø Flood relief pipe
S3
S5
S6
2
2
5
Ø
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i
g
h
w
a
y
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r
a
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n
@
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/
8
0
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2
5
Ø
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ig
h
w
a
y
D
ra
in
@
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/8
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5
Ø
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y
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/
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0
S7
2
2
5
Ø
H
ig
h
w
a
y
D
r
a
in
@
1
/1
5
0
CL = 9.373
IL = 8.016
CL = 9.434
IL = 8.140
C
L
=
1
0
.
0
5
8
I
L
=
7
.
8
0
8
I
L
=
7
.
7
3
3
CL = 10.275
IL = 8.813
S4
CL = 9.947
IL = 8.108
S0
Flow Control Manhole 3L/s (1.3m head)
CL = 9.000
IL = 6.454
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Ch'k'dDescriptionDrawnDateRev
Client
Project
Title
Drawn
Date
Checked
Date
Scale
StatusOriginal Size
Drawing No Rev
Persimmon Homes
Fulford, York
(All Phases)
Drainage Layout
Entrance/Spine Road
PH
Nov 2012
ATK
Nov 2012
1:250
A0
11644/5007-381 F
1. Do not scale dimensions from this drawing in either paper or
electronic format.
2. To be read in conjunction with all relevant Engineer's,
Architect's and Other drawings and specifications.
3. All building products to be used in strict accordance with the
manufacturer's recommendations.
4. Any discrepancies are to be reported to the Engineer
immediately.
5. Main Contractor to provide a detailed method statement for all
works prior to commencement on site.
ATKExisting gullys Fordlands Road TC04.12.12A
South notes amended.
ATKHighway drain added to A19PH13.02.14B
based on CC comments.
ATKExisting 450Ø sewer diverted.PH28.02.14C
Cover and Invert levels added.
ATKTideflex valve / headwall detailsPH22.07.14D
added.
ATKFlood Relief Pipes and notes TC06.11.14E
amended. Highway Drainage
amended.
ATKFlood Relief valves ommitted TC02.12.14F
Notes added
Groundwork's - Uncovering existing
services - Electricution/exposion
(Risk-Mod)
Design Risk
Hazard/Risk#
Obtain Statutory undertakers service
record plans, verify formal
disconnection of services with
individual Undertakers, carry out CAT
scan and hand dug trial holes to
locate. The use of Banks Man when
Excavating with machinery. (Risk-
Low)
Mitigation / Residual Risk
1.
Placing and shaping concrete -
(Compaction of concrete surround to
MH Chambers, Placing/shaping of
benching to MH's, Compaction of
Kerbrace and haunch - Cement burns
or additive irritation (Risk-Mod)
Training, Site induction, adequate
PPE and Equipment (Risk- Low)
2.
Lifting large diameter concrete pipe
work and manhole chambers into
position - Crushing of Operatives
within excavations. (Risk-High)
Operatives should not be present
within excavations during lifting
activities. Adequate supervision, site
induction should reinforce risk (Risk-
Low)
3.
Excavating deep trenches - Site
personnel falling into open
excavations due to wall collapse
(Risk-High)
Loose material to be battered back to
a safe angle, use of temporary work
(Risk- Mod)
4.
Pouring Concrete - Site personnel
falling into deep excavations/deep wet
concrete (Risk-High)
Loose material battered back to a
safe angle or consider temporary
works. Stability to be assessed by site
personnel. Appropriate pouring plant
to be used to limit requirement for site
staff to be in close proximity of
excavation edge. Adequate fencing
adjacent to the freshly poured
concrete should be provided. (Risk-
Mod)
5.
Use of Excavation Plant and
Machinery - Site personnel and
members of the public being struck by
plant resulting in injury. Damage to
existing structures. (Risk-High)
Training, Site Induction and
appropriate PPE. (Risk- Mod)
6.
Manhandling Materials - Injury to site
personnel. (Risk-High)
Training, Site Induction and
appropriate PPE. (Risk- Mod)
7.
Site Clearance - Contaminated land
and Surface Hazards. (Risk-Mod)
Refer to Remediation Statement for
specific contamination remediation.
Training, Site Induction and
appropriate PPE. (Risk- Low)
8.
9.
Construction of Site entrance - Danger
to Public and Operatives during
construction within public highway
(Risk-High)
Adequate supervision, site induction
and traffic management (to
incorporate safe working zones and
protection to the public footpath)
(Risk- Low)
10
Large areas of the Southern Flood
meadow will fill with deep water during
heavy prolonged periods of rainfall
and will remain there for some
considerable time (Risk-Med)
Adequate supervision, site induction
and site management (to incorporate
safe working zones and protection of
workforce and the public) (Risk- Low)
11
Existing 375mm Combined sewer
diversion through the site at depths in
excess of 5m. (Risk-High)
Adequate supervision, site induction
and appropriate PPE. Gas detector
and confined space training required.
(Risk- Low)
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