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Sewerage / ADAC Version v6.0.0

MaintenanceHole

Element representing a sewerage Maintenance Hole (formerly Manhole).

Geometry: geometry_point_singlepoint
ADAC Versions
v4.1 Introduced v4.2 v5.0.1 v6.0.0 LATEST

Attributes

Required and optional XML attributes
Use enum
Required

Use or purpose of this MaintenanceHole in the network

Accepted Values
ValueDescription
Overflow Maintenance Hole with an overflow to the environment, receiving waters or an emergency storage
Bifurcation Maintenance Hole with two or more outgoing sewer pipes including: [a] twin pipes (or multiple augmented pipes) [b] Major bifurcations that divert flows to separate sub-catchments [c] Minor bifurcation that diverts flow for only short distance downstream before merging into same trunk main [d] emergency storage
Blank End Maintenance hole with no incoming connection
Pump Station Pit housing a sewer pump station
Valve Pit Access Pit for a Sewer Valve
Grit Collector MH Grit Collector Maintenance Hole
Outlet Outlet
Rising Main Discharge MH A sewer MH that is the recieiving MH for a rising main discharge
Vacuum Sewerage Pump Station A pit housing a Vacuum Sewerage Pump Station
Vacuum Sewerage MH A Maintenance Hole on a vacuum system with incoming house connections or gravity sewers that may also containing a vacuum valve
Vacuum Lift A chamber on a vacuum system containing a lift or vacuum valve but no incoming laterals
Storage Tank An off-stream sewage storage tank for emergency or other use
Maintenance Hole A standard Sewerage Maintenance Hole also known as a Manhole with one outgoing pipe
Temporary Works A shaft used during construction that is left in place but does not form part of the final infrastruture
Screen Chamber Maintenance Hole on overflow pipes with screens
Unknown Chamber of unknown use at time of data submission
Other Type of maintenance structure other than those used as standard in the Schema
ChamberSize enum
Required

Data structure describing the chamber configuration and dimensions.

RectangularData container for rectangular dimensions
Length_mm positiveInteger
Required

Length in millimetres

Width_mm positiveInteger
Required

Width in millimetres

ShaftSizeDiameter_mm positiveInteger
Required

Diameter of narrowest section of upper shaft immediately below access lid where different to ChamberSize. NOT expected to apply to Use; Blank End, Pump Station, Valve Pit, Outlet, Screen Chamber. Intent is to indicate if personnel entry is possible.

SurfaceLevel_m float
Required

The height of the top surface of the lid, hatch, rim or roof. Surface level in metres against the vertical datum for this project.

InvertLevel_m float
Required

The height of the top surface of interior floor/bottom. Invert level in metres against the vertical datum for this project.

FloorConstruction enum
Required

Method of chamber floor construction.

Accepted Values
ValueDescription
Prefabricated Prefabricated
Insitu Built or poured in-situ
FloorMaterial enum
Required

Material type for chamber construction

Accepted Values
ValueDescription
Concrete Concrete
FRP Fibre Reinforced Plastic
GRP Glass Reinforced Plastic
PE Polyethylene
PP Polypropylene
PVC PolyVinylChloride
M_1 A new material not yet in the Schema as agreed with the receiving entity
M_2 A new material not yet in the Schema as agreed with the receiving entity
Unknown Material is unknown at time of data submission
Other Another material not included in the Schema
WallConstruction enum
Required

Method of chamber wall construction.

Accepted Values
ValueDescription
Prefabricated Prefabricated
Insitu Built or poured in-situ
WallMaterial enum
Required

Material type for chamber wall construction

Accepted Values
ValueDescription
Concrete Concrete
FRP Fibre Reinforced Plastic
GRP Glass Reinforced Plastic
PE Polyethylene
PP Polypropylene
PVC PolyVinylChloride
M_1 A new material not yet in the Schema as agreed with the receiving entity
M_2 A new material not yet in the Schema as agreed with the receiving entity
Unknown Material is unknown at time of data submission
Other Another material not included in the Schema
RoofMaterial enum
Required

Material type for chamber roof construction

Accepted Values
ValueDescription
PVC PolyVinylChloride
PE Polyethylene
PP Polypropylene
Concrete Concrete
FRP Fibre Reinforced Plastic
MS Mild Steel
SS Stainless Steel
Aluminium Aluminium
Cast Iron Cast Iron
Grid Mesh - GRP Grid Mesh - GRP
Grid Mesh - Aluminium Grid Mesh - Aluminium
No Roof No Roof
Grid Mesh - SS Grid Mesh - Stainless Steel
M_1 A new material not yet in the Schema as agreed with the receiving entity
M_2 A new material not yet in the Schema as agreed with the receiving entity
Unknown Material is unknown at time of data submission
Other Another material not included in the Schema
Lining enum
Optional

Material type of chamber lining

Accepted Values
ValueDescription
PVC Poly Vinyl Chloride
Epoxy Epoxy
Polyurea Polyurea
PE Polyethylene
M_1 A new lining material not yet in the Schema as agreed with the receiving entity
M_2 A new lining material not yet in the Schema as agreed with the receiving entity
Unknown Material is unknown at time of data submission
Unlined An alternative to entering a null value where there is no lining
Other Another lining material not included in the Schema
LidType enum
Required

Lid Structure loading type

Accepted Values
ValueDescription
Trafficable Cast Iron
Non-trafficable Cast Iron
LidAccessRestraint enum
Required

Restraint applied to accessing structure

Accepted Values
ValueDescription
Bolt Down Lid is bolted down
Hinged Lid fixed by hinges on one side
Crab Pot Steel frame over lid with central pole allowing lid to raise and lower during overflow event. Used on Emergency Overflow Structures
Meshed Mesh added for void/fall protection
None Lid is free to lift off Maintenance structure allowing unimpeded access
LidMaterial enum
Required

Chamber lid configuration and material

Accepted Values
ValueDescription
Cast Iron Cast Iron
Aluminium Aluminium
CI Concrete Infill Cast Iron with Concrete Infill
Composite Composite
Concrete Concrete
DI Ductile Iron
PVC Poly Vinyl Chloride
PE Polyethylene
PP Polypropylene
MS Mild Steel
SS Stainless Steel
No Lid This structure has no lid (possibly because it has no roof)
M_1 A new lid material not yet in the Schema as agreed with the receiving entity
M_2 A new lid material not yet in the Schema as agreed with the receiving entity
Unknown Lid Material is unknown at time of data submission
Other Another lid material not included in the Schema
DropType enum
Required

Chamber drop types

Accepted Values
ValueDescription
External Drop MH with one or more external backdrop vertical entries
Alternative External Drop Alternative drop type with complex access arrangement or modified benching as shown on WSAA drawing SEW-206
Internal Drop MH with one or more internal backdrop vertical entries
Oblique 45deg Backdrop MH with an oblique 45° backdrop entry
No Drop MH has no drop inlets or MH is a pump station, valve chamber, or storage tank
Benching enum
Required

Indication of benching level relative to outlet pipe. Used for volumetric calculations in modelling.

Accepted Values
ValueDescription
Top of outgoing pipe Indication of level of benching compared with structure outlet pipe
Mid level of outgoing pipe Indication of level of benching compared with structure outlet pipe
No benching No Benching
Other Benching other than top or mid level of outlet pipe
CatchmentPS String_32
Optional

The identifier of the pumpstation that this node flows to.

LineNumber String_32
Optional

The identifier of the line that this node connects to

MH_Number String_32
Required

The identifier of this manhole or pit.

Chainage_m Float_Positive_NonZero
Optional

The distance upstream from end of line.

TieDistance_m Float_Positive_NonZero
Optional

The tie distance in metres to a cadastral corner

OffsetDistance_m Float_Positive_NonZero
Optional

The offset distance in metres from a cadastral boundary

Rotation Float_Direction
Required

Rotation angle (cartesian - anti-clockwise 0 degrees = East)