SEWERAGE DESIGN AND DRAWING CHECKLIST
VERSION 2.0
DESIGN SUBMISSION
Project name
Contract number
Index number
Design consultant
Designer
Design Reviewer/Checker
Designer’s report (attached or
reference)
Related project contract numbers
Design review checklist completed
(yes/no)
Design complies with HWC design
standards (yes/no) (if no obtain
dispensation prior to design
submission and list dispensation in
table)
Drawing(s) complies with
requirements (yes/no)
Drawing CAD files passed CAD
standards check file, refer to
STS911(Yes/No)
Relevant permits Obtained (eg Permit
to Enter, Road Opening, Other
Agencies, etc). List.
Dispensation
Item
Sewerage Design And Drawing Checklist
Version 2.0 October 2010
HWC reference
DESIGN REVIEW CHECKLIST
Once the design has been completed, the Designer shall undertake a system review to
ensure the design complies with the requirements specified by the Water Agency in the
Concept Plan and the requirements detailed in this Code. Compliance shall cover at
least the following (additional items can be added when required):
Item (WSA02 – Part 1 Clause 9.1)
(a)
Size(s) and grades of sewers
throughout
the
relevant
portion of the proposed
transfer / reticulation system
meet
Concept
Plan
requirements
(b)
Pipe materials are suitable
for the particular application
and environment
(c)
Sewer layout and alignment
meets
Water
Agency
requirements
(d)
Route
selection
meets
Concept Plan requirements
(e)
Topographical
and
environmental aspects have
been addressed
(f)
Easements as
are specified
(g)
Foundation and geotechnical
aspects
have
been
considered
(h)
Provision is made for future
extensions, as appropriate
(i)
Types and locations of
maintenance
structures,
overflows and vents meet
Water Agency requirements
(j)
Locations and details
bulkheads are specified
(k)
Property service connection
locations meet Water Agency
requirements
(l)
The system components and
configuration meet the Water
Agency’s occupational health
and safety requirements
(m)
Life
cycle
appropriate
costs
of
are
Sewerage Design And Drawing Checklist
Version 2.0 October 2010
Checked (Y/NA)
Designer’s/Reviewers Notes
minimised
(n)
Environmental requirements
identified in the REF or EIA
(o)
Design Drawings comply with
Clause 9.2 and include items
listed in Clauses 9.2.1 to
9.2.7
Sewerage Design And Drawing Checklist
Version 2.0 October 2010
DESIGN DRAWINGS
In preparing Design Drawings, Designers shall comply with requirements set out in the
following table, which includes requirements listed under Clause 9.2 of WSA02 Part 1
and in Appendix HW 3A – Drawing Requirements.
Included
(Y/N/NA)
General
A locality plan giving the overall
layout and location of the works
A detailed plan of the scheme
Detailed
notes
construction
to
facilitate
Special details where the Standard
Drawings are not sufficient
Longitudinal sections
A flow schedule
Schedule of landowners
Benchmark or reference level mark
Scale
North point
Contract Number
Index Number
Name of Developer
Name of Project Manager
Name of Designer or agent
Title
block
STS911)
information
(refer
Construction
Name of Constructor
Plan to be marked “Work As
Constructed” on the top right corner
in 5 mm text
Date of completion of construction
Date of drawing
documents
up
of
WAC
Amended positions and/or depths
of sewers
If sewer is amended in position
and/or depth, redefined drainage
limits on WAC drawings
Sewerage Design And Drawing Checklist
Version 2.0 October 2010
Notes
Revised status of facilities e.g.
“Existing end to be extended”
edited to “Existing end extended” in
WAC documentation
Property information
Layout of roads, easements and
lots
Lot numbering and street names
Municipal boundaries
Sewers
Pipe
schedule
showing
size,
material, type, class, length and
joint type of all pipes to be laid and
abandoned
Section of existing sewermain
downstream to closest existing MH
or MS
Position of sewers
property boundaries
relative
to
Locations and details of known
utility services and stormwater
drains
Insets and diagrams (amended
where
necessary
on
WAC
drawings)
Notations and standard labels
indicating
current
status
e.g.
“Existing end to be extended” (to
be
edited
to
“Existing
end
extended” in WAC documentation)
Ties to structures and downstream
distances
Where sewers can only be tied to
local features i.e. trees, posts, etc,
bearing and distances of sewers
with azimuth of survey
Directions for connecting to existing
system
A note specifying that nondetectable tape, raised to the
surface, is to be laid above
junctions
Design assumptions for ancillary
structures
Sewerage Design And Drawing Checklist
Version 2.0 October 2010
Line numbers
Flow arrows
Final design contours (not required
on construction issue)
Point of connection and connection
type for each lot (eg branch,
junctions, riser etc) or junction
distances to downstream MH
Unsurveyed property connection
sewers shown with downstream
distance and length e.g. 12.5 PCS
2.0, with distance shown first in all
cases
Drainage limits—full or partial
Slope arrows on each lot
Lot connection invert levels
Existing junctions within new lots
Structures
MH/MS numbers
Measured and
existing sewer
HW
levels
on
Position of structures relative to
property boundaries
Survey level control points
Ties and/or downstream distance
Type of structure
Details of all inlets and property
connection sewers
Water seal requirements
Ties to additional structures
MGA co-ordinates (GDA94)
Vent shafts showing size, type and
height
For MHs and chambers, structural
details
including
section
thicknesses, reinforcement and
cover
Longitudinal sections (profiles)
Size and class (stiffness, SDR
and/or pressure) of sewer to be laid
Material designation of sewer to be
Sewerage Design And Drawing Checklist
Version 2.0 October 2010
laid (Refer to list of acronyms on
WSAA website)
Chainages of structures and other
on line and nearby features
Locations and details of known
utility services and stormwater
drains (additional services located
during construction to be shown on
WAC drawings)
Grades (percentage) and levels of
sewers (including depths to invert
and surface levels)
Thrust bores and critical grade
sewers.
Surveyed RL of and
clearance from other pipes and
services to be shown
Special features of structures e.g.
fibreglass MH with solid-top, boltdown DI Class B watertight cover,
vertical concrete encased with
lamphole type cover etc
Design type of structures e.g. MH,
segmental MH, etc
Types of joints and extent of each
type (Refer to list of acronyms on
WSAA website)
Concrete surrounds or concrete
bulkheads with relevant chainages
Protective
coatings
or
other
protective measures with relevant
chainages
Piling—size, type and extent
Types of pipe
chainage noted
support
used—
Method and type of construction if
boring to be undertaken
Strata
Intersection and tangent point
details and invert levels for setting
out any curves
Trench support system
ground—chainages noted
left
in
Ground water levels encountered
Where totally sand-filled trench—
chainages noted
Sewerage Design And Drawing Checklist
Version 2.0 October 2010
Line numbers (check plan) and
notation of junctioning line numbers
MH/MS numbers (check plan)
Drop structures
Direction
and
IL
of
inlets
constructed for future connection
Tenure
Bedding type
Datum RL
Surface level, finished surface level
and kerb level where applicable
Construction
applicable
notes
where
Other
Major features e.g. creeks, railway
lines, power transmission lines
Geotechnical
data,
special
foundation conditions, dewatering
requirements
Groundwater levels
Locations and details of known and
suspected sites with contaminated
soil and acid sulphate or potential
acid sulphate soil (additional sites
located during construction to be
shown on WAC drawings)
Sewerage Design And Drawing Checklist
Version 2.0 October 2010