Node Overview

Asset Type: junction
Display Name: Node
Display Plural: Nodes
Geometry Type: Point

Quick Navigation

• SubTypes
• Asset Attributes
• Inspection Attributes
• Service Requests

Node SubTypes

SubType Key	Display Name	Geometry	Documentation	Also Known As
Manhole	Manhole	Point	Large inspection chamber with cover, typically in carriageway or footway; access point for underground drainage system with steps or ladder for personnel entry.	—
Catchpit	Catchpit	Point	Sediment trap chamber with sump for collecting silt, grit and debris before water flows to main system; settling pit for material removal.	—
Gully	Gully	Point	Road or footpath gully with grating at surface level; collects surface water runoff from carriageway, footway or kerb edge.	—
RoddingEye	Rodding Eye	Point	Small access point for rodding or jetting equipment; allows drain clearing without full chamber access, typically smaller than manhole.	—
Soakaway	Soakaway	Point	Infiltration chamber or rubble-filled pit allowing water to percolate into ground; drainage disposal point with no outflow pipe.	—
Interceptor	Interceptor	Point	Oil separator, petrol interceptor or pollution control chamber; treats contaminated water before discharge, often with baffles and Class 1/2 rating.	—
Headwall	Headwall	Point	Concrete or masonry structure at culvert or pipe entrance/exit; retains embankment and provides structural support at channel termination.	—
TrashScreen	Trash Screen	Point	Debris screen, trash rack or coarse screen preventing large objects entering system; metal grille or bar screen at inlet.	—
Cover	Cover	Point	Inspection cover, access lid or chamber cover without full structure information; surface access point where details uncertain.	—
CattleGrid	Cattle Grid	Polygon	Metal grid across roadway or track allowing vehicle passage while preventing livestock crossing; drainage feature with bars over pit.	—
Inlet	Inlet	Point	Water entry point or surface water inlet to drainage system; start of pipe run or channel intake location.	—
Outlet	Outlet	Point	Pipe discharge point or drainage system exit; where water leaves pipe before final outfall or next system component.	—
Outfall	Outfall	Point	Final discharge point to watercourse, river, ditch or sea; end of drainage system where water released to receiving waters.	—
PumpingStation	Pumping Station	Point	Pumped drainage chamber with mechanical equipment; lifts water where gravity drainage is impossible, includes pump and controls.	—
GhostNode	Ghost Node	Point	Virtual connection point or modelling node with no physical structure; used for network connectivity or system representation only.	—
HydroBrake	Hydro Brake	Point	Flow control device or vortex valve restricting discharge rate; mechanical flow limiter for attenuation or storage control.	—
Connector	Connector	Point	Network junction point or logical connection between systems; links different drainage networks or asset ownership boundaries.	—
Weir	Weir	Point	Overflow structure or water level control with notch or crest; measures or regulates flow in chamber or open channel.	—
Penstock	Penstock	Point	Adjustable gate or sluice valve for flow control; manually operated metal gate controlling water level or discharge.	—
WaterAuthority	Water Authority	Point	Asset owned and/or maintained by the local water authority. May be of any type, details in the asset type field.	—
KerbInlet	Kerb Inlet	Point	Kerb opening or slot in kerb face for water entry; side-entry inlet where water enters from kerb edge rather than grating.	—

Node Asset Attributes

Attribute Name	Display Name	Type	Enum Values
type	Structure	Enumerated	N/A
access_method	Access Method	EnumeratedWithSupplementaryQuestions	N/A
num_steps	Number of steps	Number	N/A
grating_type	Grating	Enumerated	N/A
gully_location	Gully Location	Enumerated	N/A
shaft_width	Shaft Width	NumberWithUnit	N/A
shaft_height	Shaft Height	NumberWithUnit	N/A
chamber_width	Chamber Width	NumberWithUnit	N/A
chamber_length	Chamber Length	NumberWithUnit	N/A
depth	Overall Depth	NumberWithUnit	N/A
chamber_shape	Chamber Shape	Enumerated	N/A
cover_material	Cover Material	Enumerated	N/A
cover_shape	Cover Shape	Enumerated	N/A
cover_width	Cover/Grid Width	NumberWithUnit	N/A
cover_length	Cover/Grid Length	NumberWithUnit	N/A
cover_level	Cover Level (high accuracy) (m)	NumberWithUnit	N/A
discharge_location	Discharge Location	Enumerated	N/A
cover_duty	Cover Duty	Enumerated	N/A
cover_manufacturer	Cover Manufacturer	FreeText	N/A
cover_class	Cover Class	Enumerated	N/A
construction	Construction	Enumerated	N/A
has_grating	Grating	NullableBoolean	N/A
has_side_entry	Side Entry	NullableBoolean	N/A
has_flap_valve	Flap Valve	NullableBoolean	N/A
has_orifice	Orifice	NullableBoolean	N/A
has_sluice_gate	Sluice gate	NullableBoolean	N/A
has_weir	Weir	NullableBoolean	N/A
has_screens	Screens	NullableBoolean	N/A
has_penstock	Penstock	NullableBoolean	N/A
has_flume	Flume	NullableBoolean	N/A
has_headwall	Headwall	NullableBoolean	N/A
has_borehole	Borehole	NullableBoolean	N/A
has_grit_pan	Grit Pan	NullableBoolean	N/A
has_sump	Sump present	NullableBoolean	N/A
backing_kerb	Backing kerb	NullableBoolean	N/A
num_landings	No. Landings	Number	N/A
usage	Usage	Enumerated	N/A
data_source	Data Source	FreeText	N/A
structure_location	Structure Location	Enumerated	N/A
strategic	Strategic	Enumerated	N/A
headwall_material	Headwall material	Enumerated	N/A
access_gate	Access Gate	Enumerated	N/A
has_removable_panel	Removable panel	NullableBoolean	N/A
has_fencing_handrail	Fencing handrail	NullableBoolean	N/A
has_working_platform	Working platform	NullableBoolean	N/A
has_horizontal_screen	Horizontal screen	NullableBoolean	N/A
has_sloping_screen	Sloping screen	NullableBoolean	N/A
has_coarse_screen	Coarse screen	NullableBoolean	N/A
reference_number	Reference number	FreeText	N/A
retention	Retention	Enumerated	N/A
interceptor_class	Class	Enumerated	N/A
oil_storage_capacity	Oil storage capacity	NumberWithUnit	N/A
closure_valve	Closure valve	NullableBoolean	N/A
alarm_installed	Alarm installed	NullableBoolean	N/A
other_shape	Other Shape	Enumerated	N/A
gully_subtype	Gully Type	Enumerated	N/A
water_authority_subtype	Water Authority Node Type	FreeText	N/A
chamber_material	Chamber material	Enumerated	N/A
invert_level	Invert level (min 30, max 250)	NumberWithUnit	N/A
dimension	Dimension	Enumerated	N/A
trapped	Trapped	Boolean	N/A
remote_access_reason	Remote access	Enumerated	N/A
needs_sweeper	Requires sweeper	Boolean	N/A
soffit	Soffit	Enumerated	N/A
tail_direction	Tail direction	Enumerated	N/A
grid_size	Grid size	NumberWithUnit	N/A
gate_size	Gate size	NumberWithUnit	N/A
hazard	Hazard	Enumerated	N/A

📋 Access Method Values

Name	Display
StepIrons	Step irons
Ladder	Ladder
Landings	Landings
Davits	Davits
Other	Other
None	None

📋 Grating Values

Name	Display
Grate	Grate
Split	Split
Infill	Infill
Other	Other (Hinged)
Non-Hinged	Other (Non-Hinged)

📋 Gully Location Values

Name	Display
Carriageway	Carriageway
CentralReservation	Central Reservation
Footway	Footway
ParkingBay	Parking Bay
Other	Other

📋 Chamber Shape Values

Name	Display
Circular	Circular
Square	Square
Rectangle	Rectangle
Triangular	Triangular
Other	Other

📋 Cover Material Values

Name	Display
Iron/Concrete	Iron/Concrete
Iron	Iron
Infill	Infill
Ductile	Ductile
Composite	Composite
Fibreglass	Fibreglass
Other	Other

📋 Cover Shape Values

Name	Display
Circular	Circular
Square	Square
Rectangle	Rectangle
Triangular	Triangular
Other	Other

📋 Discharge Location Values

Name	Display
LowRisk	Low Risk
BathingWater	Bathing water
Ditches	Ditches
Rivers	Rivers
Sea	Sea

📋 Cover Duty Values

Name	Display
HeavyDuty	Heavy
MediumDuty	Medium
LightDuty	Light
Unknown	Unknown

📋 Cover Class Values

Name	Display
A15	A15
B125	B125
C250	C250
D400	D400
E600	E600
F900	F900
Unknown	Unknown

📋 Construction Values

Name	Display
Brick	Brick
PreCastConcrete	Precast Concrete
InSituConcrete	In situ Concrete
BoltedConcreteSegments	Bolted Concrete segments
Iron	Iron
IronAndConcrete	Iron/Concrete
Other	Other

📋 Usage Values

Name	Display
Surface	Surface
Foul	Foul
Combined	Combined
Other	Other

📋 Structure Location Values

Name	Display
Verge	Verge
Footway	Footway
Carriageway	Carriageway
HardShoulder	Hard Shoulder
Lane1	Lane1
Lane2	Lane2
Lane3	Lane3
CresRightVerge	Cres / Right Verge

📋 Strategic Values

Name	Display
CentralReserve	Central Reserve
CrossDrains	Cross Drains
VergeOrHardShoulder	Verge / Hard Shoulder
ToeDrainsToEarthworks	Toe Drains to Earthworks
Other	Other Drainage System

📋 Headwall material Values

Name	Display
Bagwork	Bagwork
Blockwork	Blockwork
Brickwork	Brickwork
Concrete	Concrete
In-Situ Concrete	In-Situ Concrete
Other	Other

📋 Access Gate Values

Name	Display
Gate	Gate
Hatch	Hatch
Null	Null

📋 Retention Values

Name	Display
Full	Full
Bypass	Bypass

📋 Class Values

Name	Display
Class1	Class 1
Class2	Class 2

📋 Other Shape Values

Name	Display
Rectangle	Rectangle
Circle	Circle
Other	Other

📋 Gully Type Values

Name	Display
Split	Split
Grate	Grate (hinged)
SideEntry	Side entry
CurbInlet	Kerb inlet
Trough	Trough
OffLet	Offlet
Footway	Footway Gully
Chute	Chute
TopEntry	Top entry
Offset	Offset
OtherNonHinged	Other (non-hinged)
Other	Other

📋 Chamber material Values

Name	Display
Brick	Brick
Concrete	Concrete
MasonryBlock	Masonry block
Polyethylene	Polyethylene
Clay	Clay
CastIron	Cast Iron

📋 Dimension Values

Name	Display
Gully	Gully
Chamber	Chamber

📋 Remote access Values

Name	Display
None	Not required
Ped	Pedestrian area
NoAcc	No access for vehicle
Subway	Subway

📋 Soffit Values

Name	Display
Corbel	Corbel
ReducingSlab	Reducing Slab
Taper	Taper
Other	Other
None	None

📋 Tail direction Values

Name	Display
Carriageway	Carriageway
Footway	Footway
Channel	Channel

📋 Hazard Values

Name	Display
ServicesInAsset	Services in asset
ShallowPipework	Shallow pipework
Other	Other

Node Inspection Attributes

Attribute Name	Display Name	Type	Enum Values
cover_condition	Cover Condition	Enumerated	N/A
silt_level_nX	Silt level	NumberInRangeWithUnit	N/A
silt_level_n	Silt Level	ReflectedSlider	N/A
silt_level	Silt Level	Enumerated	N/A
silt_level_position	Silt level position	Enumerated	N/A
silt_defect	Silt defect	TransitionalNotSetMultiValuedEnumerated	N/A
water_level	Water Level	Enumerated	N/A
pollution	Evidence of pollution	Enumerated	N/A
is_dry	Gully is dry	Boolean	N/A
operational_on_arrival	Operational on arrival	Enumerated	N/A
operational_on_leaving	Operational on leaving	Enumerated	N/A
junction_cleaned	Cleaned	Boolean	N/A
general_condition	General condition	Enumerated	N/A
weather	Weather on Inspection	Enumerated	N/A
carriageway_flooding	Carriageway flooding	Enumerated	N/A
weepholes	Weep holes	Enumerated	N/A
base_condition	Condition of Base	Enumerated	N/A
structure_condition	Condition of Structure	Enumerated	N/A
scour_pad_condition	Condition of Anti Scour Pad	Enumerated	N/A
structure_defects	Structure defects	Enumerated	N/A
components	Components	Enumerated	N/A
jetting_completed	Jetting completed	BooleanWithSupplementaryQuestions	N/A
jetting_time	Jetting time	NumberInRangeWithUnit	N/A
jt_water_req	Water required	Boolean	N/A
jt_travel_req	Travel required	Boolean	N/A
jt_comment	Reason for jetting	FreeText	N/A
pot_condition	Pot condition	Enumerated	N/A
cover_to_silt_depth	Silt depth	SiltDepth	N/A
waste	Waste	NumberWithUnit	N/A
base_to_outlet	Base to Outlet	NumberWithUnit	N/A
flood_extent	Flood extent	Enumerated	N/A
flood_depth	Flood depth	Enumerated	N/A
enhanced_clean	Enhanced Clean	Boolean	N/A
repair_completed	Repair completed	Boolean	N/A

📋 Cover Condition Values

Name	Display
OK	OK
UnableToLift	Stuck Cover
CrackedLid	Cracked Cover
BrokenLid	Broken Cover
BuriedOnArrival	Buried on Arrival
Missing	Missing Cover

📋 Silt Level Values

Name	Display
0%	0%
25%	25%
50%	50%
75%	75%
100%	100%

📋 Silt level position Values

Name	Display
Over120mmBelowOutlet	Greater than 120mm below outlet
Within120mmOfOutlet	Silt within 120mm of outlet
AboveOutlet	Silt above outlet

📋 Silt defect Values

Name	Display
RequiredDigOut	Required dig out
ExcessiveDebris	Excess debris
TarmacStone	Tarmac/Stone
Needles	Needles/Sharps
Litter	Litter
OilAndFat	Oil and fat
DomesticRefuse	Domestic Refuse
LargeHouseholdRefuse	Large Household Refuse
LargeNonDomesticRefuse	Large Non-Domestic Refuse
Roots	Roots
Leaves	Leaves

📋 Water Level Values

Name	Display
0%	0%
25%	25%
50%	50%
75%	75%
100%	100%

📋 Evidence of pollution Values

Name	Display
None	None
Foul water	Foul water
Petrol	Petrol
Oil	Oil
Chemical	Chemical

📋 Operational on arrival Values

Name	Display
Yes	Yes - junction flowing
No	No
SlowRunner	Slow runner

📋 Operational on leaving Values

Name	Display
Yes	Yes - junction flowing
No	No
SlowRunner	Slow runner

📋 General condition Values

Name	Display
0	unknown
1	1
2	2
3	3
4	4
5	5

📋 Weather on Inspection Values

Name	Display
Wet	Wet
Dry	Dry

📋 Carriageway flooding Values

Name	Display
FullWidth	Full width
HalfWidth	Half width
Part	Part
None	None

📋 Weep holes Values

Name	Display
Clear	Clear
Blocked	Blocked
N/A	N/A

📋 Condition of Base Values

Name	Display
Good	Good
Average	Average
NeedsRepair	Needs Attention/Repair

📋 Condition of Structure Values

Name	Display
Good	Good
Average	Average
NeedsRepair	Needs Attention/Repair

📋 Condition of Anti Scour Pad Values

Name	Display
Good	Good
Average	Average
NeedsRepair	Needs Attention/Repair

📋 Structure defects Values

Name	Display
StructuralCrack	Structural Crack
Fractured	Fractured
Broken	Broken
Unsafe	Unsafe

📋 Components Values

Name	Display
DamagedBaffle	Damaged Baffle
LooseUnseatedFlapValve	Loose or Unseated Flap Valve
MissingVentPipeFromOilSeparator	Missing Vent Pipe from Oil Separator
MissingWeirSections	Missing Weir Sections
SeizedFlapValve	Seized Flap Valve
MissingHandRail	Missing Hand Rail

📋 Pot condition Values

Name	Display
Cracked	Cracked
Collapsed	Collapsed

📋 Flood extent Values

Name	Display
LessThan5m2	Less than 5 m2
5-20m2	5 - 20 m2
20-100m2	20 - 100 m2
MoreThan100m2	More than 100 m2

📋 Flood depth Values

Name	Display
LessThan25mm	Less than 25 mm
25-100mm	25 - 100 mm
100-300mm	100 - 300 mm
MoreThan300mm	More than 300 mm

Node Service Requests

Operation	Display Name
inspect	Inspect
rectify_unknown_fault	Rectify unknown fault
investigate	Requires investigation
clean	Clean
jetting	Jetting
root_cutting	Root cutting
cctv_survey	CCTV survey
connection_excavation	Connection excavation
main_line_clean	Main line clean
pot_design_change	Pot design change
dig_out	Dig out
release_lid	Lid release
cover_replacement	Cover replacement
unblock_ditch	Unblock ditch
refer_to_client	Refer to client
bung_replacement	Bung Replacement
hedge_cutting	Hedge Cutting
desilting	Desilting
repair	Repair

Contacts (optional)

• Internal business owner
• Technical lead(s)
• 3rd party contact details

Links

• Proposals

• Use cases

• Acceptance criteria

• Configuration Documentation

• Technical Documentation

• User Documentation

References (git and/or clickup / see also / external references)

• Github issues for: hub:/home/matheus/git/drains/doc-hub/asset-types/junction/README.md

Generated on 2026-01-29T11:53:35.669Z