Wall
Defence
A wall is a raised structure used in the fluvial, tidal and costal environments for flood defence and/or erosion protection. Also covers walls used in dam structures. Small wall structures found along channels that offer no flood defence or questionable erosion protection should be defined as High ground.
A wall is displayed in AIMS as a polyline showing the crest of the defence.
![Walls](/asset-management/drl-app/img/fig_9_wall.jpeg)
Elements
An Element Type is a component part of an Asset Type. Each Asset Type (except Asset Complex assets) will comprise of a prescribed set of Element Types. Some Element Types are essential and must be present to define an asset of that Asset Type. Other Element Types are optional, to be included when needed to define a particular Asset Type instance. An individual asset may have more than one instance of each Element Type.
This table lists the Element Types applicable to this Asset Type.
Element Type | Description | Element Code | Essential | Uniclass 2015 | Updates |
---|---|---|---|---|---|
Access Strip | A strip of land that is used for access to an asset for operational or maintenance purposes | ASP | No | 25-02-2020 | |
Berm | The extent of horizontal ground between the watercourse or coast and a raised feature (embankment, wall, bank, gate etc.) | BER | No | 25-02-2020 | |
Channel Side | Used only for fluvial and tidal embankments. Describes the part from the channel bed to the top of the bank adjacent to the defence | CSE | No | 25-02-2020 | |
Crest | The highest point of an asset (e.g. embankment, abutment, beach) | CRT | Yes | 25-02-2020 | |
Exposed Face | The face of an asset that faces a river, coast or reservoir | EFE | Yes | 25-02-2020 | |
Gabions | Wire mesh basket packed with stones use to prevent scour or reduce tidal energy. A similar device is the Reno mattress which has a larger base area and reduced height with compartments built into the wire frame. | GAB | No | 25-02-2020 | |
Landward Face | The vertical or inclined part of an asset that faces the land or away from a reservoir | LFC | Yes | 25-02-2020 | |
Landward Toe | The area at the base of the landward face of a raised feature (embankment, wall, cliff etc.) | LTE | No | 25-02-2020 | |
Piling | Columns of wood, steel or concrete used to reinforce an asset | PLG | No | 25-02-2020 | |
Rock Armour | Rocks laid to defend against scour, for example at the base of an embankment or cliff | RAR | No | 25-02-2020 | |
Seaward Toe | The area at the base of the exposed face of a raised feature (embankment, wall, cliff etc.) | STE | No | 25-02-2020 | |
Splash Deck | The area between a main wall and a splash wall | SDK | No | 25-02-2020 | |
Splash Wall | A secondary wall on the landward side of a defensive structure that is used to contain splash waters from the sea | SWL | No | 25-02-2020 |
Attributes
An attribute is a particular piece of data that describes a property of an object. Each Asset Type is described by a different set of attributes, although there are some attributes that are common to many Asset Types.
The table below lists the attributes that are applicable to this Asset Type, along with the data profile requirements for each attribute and details of when and how each should be used and delivered.
Attribute | Format Details | Delivery | Purpose | Mandatory | geoCOBie Mapping | Updates |
---|---|---|---|---|---|---|
(inspection) data quality The inspection data quality. Refer to OI 57_06 | Picklist 1 2 3 4 5 | EA7 | Feature.Attribute.Name.InspectionDataQuality | 25-02-2020 | ||
actual DCL The actual downstream crest level | Number Max: 999,999.999 Number of decimal places: 3 Can be negative? false Units: mAOD | EA7 | Feature.Attribute.Name.ActualDcl | 25-02-2020 | ||
actual DCL date The date the actual downstream crest level was taken | Date | EA7 | Feature.Attribute.Name.ActualDclDate | 25-02-2020 | ||
actual DCL DQF The data quality flag for the actual downstream crest level. Refer to OI 57_06 | Picklist 1 2 3 4 | EA7 | Feature.Attribute.Name.ActualDclDqf | 25-02-2020 | ||
actual UCL The actual upstream crest level | Number Max: 999,999.999 Number of decimal places: 3 Can be negative? false Units: mAOD | EA7 | Feature.Attribute.Name.ActualUcl | 25-02-2020 | ||
actual UCL date The date the actual upstream crest level was taken | Date | EA7 | Feature.Attribute.Name.ActualUclDate | 25-02-2020 | ||
actual UCL DQF The data quality flag for the actual upstream crest level. Refer to OI 57_06 | Picklist 1 2 3 4 | EA7 | Feature.Attribute.Name.ActualUclDqf | 25-02-2020 | ||
alt asset ref The alternative asset reference used to cross reference to other data systems | Text Max Length: 30 | EA6 | Feature.Attribute.Name.AltAssetRef | 25-02-2020 | ||
assessment reason The reason for carrying out the assessment | Picklist Scheduled Inspection Adhoc Inspection Post Incident Inspection Post Remedial Work Assessment | EA7 | Feature.Attribute.Name.AssessmentReason | 25-02-2020 | ||
assessment reason text Any other comments about the reason for carrying out the assessment | Text Max Length: 200 | EA7 | Feature.Attribute.Name.AssessmentReasonText | 25-02-2020 | ||
asset end date The end date of the asset. This is only to be populated when asset is withdrawn or fully decommissioned | Date | EA6 | Feature.Attribute.Name.AssetEndDate | 25-02-2020 | ||
Asset ID Unique system generated unique ID used as a primary key | Number Max: 9,999,999,999 Number of decimal places: 0 Can be negative? false | EA4 | Feature.Attribute.Name.AssetId | 25-02-2020 | ||
asset maintainer The organisation or individual recognised to be the maintainer of the asset | Picklist Environment Agency Local Authority Internal Drainage Board Private Unknown | EA7 | Feature.Attribute.Name.AssetMaintainer | 25-02-2020 | ||
asset name The name of the asset if it has one | Text Max Length: 50 | EA3 | Feature.Attribute.Name.AssetName | 25-02-2020 | ||
asset operator The organisation or individual recognised to be the operator of the asset | Picklist Environment Agency Local Authority Internal Drainage Board Private Unknown | EA7 | Feature.Attribute.Name.AssetOperator | 25-02-2020 | ||
asset owner The organisation or individual known to be the owner of the asset | Picklist Environment Agency Local Authority Internal Drainage Board Private Unknown | EA7 | Feature.Attribute.Name.AssetOwner | 25-02-2020 | ||
Asset Ref Unique asset reference code in scheme context assigned by scheme designer eg IG0123 | Text Subtype code IG + sequence number | EA2 | Feature.Name.AssetRef | 25-02-2020 | ||
asset start date The date the asset becomes operational | Date | EA6 | Feature.Attribute.Name.AssetStartDate | 25-02-2020 | ||
asset subtype Attribute missing from CAMC (AIMS) Asset Terminology Guide 218_12 List of Attribute Types | Picklist Control Gate Draw-Off Tower Fishpass Hydrobrake In Channel Stoplogs Inspection Chamber Jetty Outfall Screen Spillway Stilling Basin Weir | EA3 | Feature.Attribute.Name.AssetSubtype | 25-02-2020 | ||
asset type Attribute missing from CAMC (AIMS) Asset Terminology Guide 218_12 List of Attribute Types | Picklist Aids to Navigation Beach structure Buildings Channel Channel Crossing Defence Instrument Land Major Civils Site Structure | EA3 | Feature.Attribute.Name.AssetType | 25-02-2020 | ||
bank The bank that the asset is on when looking downstream for fluvial assets. For coastal assets use coastal | Picklist left right coastal | EA7 | Feature.Attribute.Name.Bank | 25-02-2020 | ||
calculated condition The condition of the asset calculated from the element weightings and conditions configuration | Picklist 1 2 3 4 5 | EA7 | Feature.Attribute.Name.CalculatedCondition | 25-02-2020 | ||
CDL Class Continuous Defence Line class to indicate whether the source of the data is from a survey, the channel edge taken from Mastermap or a connection polyline created to join the two. | Picklist surveyed channel edge connection | EA6 | Feature.Attribute.Name.CdlClass | 25-02-2020 | ||
comments Other comments about the asset | Text Max Length: 2000 | EA3 | Feature.Attribute.Name.Comments | 25-02-2020 | ||
continuous defence line Is this defence to be used to form the continuous defence line for NaFRA? | Picklist Yes No | EA3 | Feature.Attribute.Name.ContinuousDefenceLine | 25-02-2020 | ||
crest length The total length of the dam crest, Only to be used for Dams | Number Max: 999.99 Number of decimal places: 2 Can be negative? false Units: metres | EA7 | Feature.Attribute.Name.CrestLength | 25-02-2020 | ||
crest level locatable attribute date The date the crest level of the defence was assessed at this location | Date | EA7 | Feature.Attribute.Name.CrestLevelLocatableAttributeDate | 25-02-2020 | ||
crest level locatable attribute level The crest level of the defence at this location | Number Max: 299.99 Number of decimal places: 2 Can be negative? false Units: mAOD | EA7 | Feature.Attribute.Name.CrestLevelLocatableAttributeLevel | 25-02-2020 | ||
current SOP The Standard of Protection (1:n) that the asset currently provides, if known | Number Max: 9,999.9 Number of decimal places: 1 Can be negative? false Units: years | EA7 | Feature.Attribute.Name.CurrentSop | 25-02-2020 | ||
current SOP date The date the Current Standard of Protection was appraised | Date | EA7 | Feature.Attribute.Name.CurrentSopDate | 25-02-2020 | ||
data owner asset ref Asset reference used by the management group, for example: EA NFCDD Reference | Text Max Length: 20 | EA7 | Feature.Attribute.Name.DataOwnerAssetRef | 25-02-2020 | ||
decommission status The status of the decommissioning of the asset. Refer to decommissioning guidance | Picklist for consideration being decommissioned decommissioned | EA7 | Feature.Attribute.Name.DecommissionStatus | 25-02-2020 | ||
decommission status date The date that the decommissioning status was set | Date | EA7 | Feature.Attribute.Name.DecommissionStatusDate | 25-02-2020 | ||
defence line – geometry The geometry of the defence | Geometry | EA7 | Feature.Attribute.Name.DefenceLine–Geometry | 25-02-2020 | ||
description A brief description of the asset and / or its construction type | Text Max Length: 200 | EA3 | Feature.Attribute.Name.Description | 25-02-2020 | ||
design DCL The designed downstream crest level | Number Max: 999,999.999 Number of decimal places: 3 Can be negative? false Units: mAOD | EA7 | Feature.Attribute.Name.DesignDcl | 25-02-2020 | ||
design SOP The Standard of Protection (1:n) that the asset was designed to provide | Number Max: 9,999.9 Number of decimal places: 1 Can be negative? false Units: years | EA7 | Feature.Attribute.Name.DesignSop | 25-02-2020 | ||
design SOP date The date the design Standard of Protection was appraised | Date | EA7 | Feature.Attribute.Name.DesignSopDate | 25-02-2020 | ||
design SOP DQF The data quality flag for the design Standard of Protection. Refer to OI 57_06 | Picklist 1 2 3 4 5 6 | EA7 | Feature.Attribute.Name.DesignSopDqf | 25-02-2020 | ||
design UCL The designed upstream crest level | Number Max: 999,999.999 Number of decimal places: 3 Can be negative? false Units: mAOD | EA7 | Feature.Attribute.Name.DesignUcl | 25-02-2020 | ||
document links The document - Please note this may not be the most up-to-date version. | Link | EA6 | Feature.Attribute.Name.DocumentLinks | 25-02-2020 | ||
effective crest level The lowest crest level along a coastal defence | Number Max: 999,999.999 Number of decimal places: 3 Can be negative? false Units: mAOD | EA7 | Feature.Attribute.Name.EffectiveCrestLevel | 25-02-2020 | ||
effective crest level date The date the effective crest level was taken | Date | EA7 | Feature.Attribute.Name.EffectiveCrestLevelDate | 25-02-2020 | ||
effective crest level DQF The data quality flag for the effective crest level. Refer to OI 57_06 | Picklist 1 2 3 4 | EA7 | Feature.Attribute.Name.EffectiveCrestLevelDqf | 25-02-2020 | ||
effective date The effective date of the inspection. Refer to Inspection documentation on KPI881 | Date | EA7 | Feature.Attribute.Name.EffectiveDate | 25-02-2020 | ||
FWM Act designated Is the asset designated under the Floods and Water Management Act 2010? | Picklist Yes No | EA6 | Feature.Attribute.Name.FwmActDesignated | 25-02-2020 | ||
include in floodmap The Floodmap inclusion assessment. Refer to Floodmap Guidance | Picklist not considered considered and accepted considered and rejected | EA3 | Feature.Attribute.Name.IncludeInFloodmap | 25-02-2020 | ||
inspected by The inspector who has inspected the asset | Text Max Length: 20 | EA7 | Feature.Attribute.Name.InspectedBy | 25-02-2020 | ||
inspection comments The inspection comments from the asset inspection | Text Max Length: 1000 | EA7 | Feature.Attribute.Name.InspectionComments | 25-02-2020 | ||
inspection date The date of the inspection | Date | EA7 | Feature.Attribute.Name.InspectionDate | 25-02-2020 | ||
inspection purpose The purpose for the inspection. (Definition from 'Purpose' attribute in OI 218_12) Attribute missing from CAMC (AIMS) Asset Terminology Guide 218_12 | Picklist FCERM Protection | EA7 | Feature.Attribute.Name.InspectionPurpose | 25-02-2020 | ||
interested parties The details for any interest parties | Link | EA6 | Feature.Attribute.Name.InterestedParties | 25-02-2020 | ||
length The length of the asset calculated from its geometry | Number Max: 999,999.999 Number of decimal places: 3 Can be negative? false Units: metres | EA7 | Feature.Attribute.Name.Length | 25-02-2020 | ||
level of integration Only to be used if “Asset Maintainer” is set to “Private”. Refer to OI 640_08_SD02. Private Community (separate to a scheme but protects a community (or critical infrastructure?)), Private Individual Attached (part of a scheme), Private Individual Unattached (Separate to a scheme but protects an individual (property of business)) | Picklist Private Community Private Individual Attached Private Individual Unattached | EA7 | Feature.Attribute.Name.LevelOfIntegration | 25-02-2020 | ||
location The location of the asset, for example: nearest town and/or distance downstream of named bridge | Text Max Length: 200 | EA3 | Feature.Attribute.Name.Location | 25-02-2020 | ||
management group Group who has the responsibility to maintain the data associated them in the system | Picklist EA FCRM | EA6 | Feature.Attribute.Name.ManagementGroup | 25-02-2020 | ||
operational requirement Does this asset have an operational requirement? For example: routine plant crossing | Picklist Yes No | EA6 | Feature.Attribute.Name.OperationalRequirement | 25-02-2020 | ||
override calculated condition Has the calculated condition been overridden? | Picklist Yes No | EA7 | Feature.Attribute.Name.OverrideCalculatedCondition | 25-02-2020 | ||
override reason The reason the calculated condition was overridden | Text Max Length: 200 | EA7 | Feature.Attribute.Name.OverrideReason | 25-02-2020 | ||
primary purpose The main purpose of the asset, i.e.: the reason it was constructed (a natural asset may have an asset management purpose) | Picklist Flood Risk Management Erosion Protection Water Resources Leisure and Amenity Environmental Navigation Water Level Management Fisheries Legal/statutory Highways Other | EA7 | Feature.Attribute.Name.PrimaryPurpose | 25-02-2020 | ||
protection type The type of protection the asset gives | Picklist coastal fluvial fluvial/tidal tidal | EA3 | Feature.Attribute.Name.ProtectionType | 25-02-2020 | ||
PSRA reference The public safety risk assessment reference number | Text Max Length: 30 | EA6 | Feature.Attribute.Name.PsraReference | 25-02-2020 | ||
PSRA risk The public safety risk assessment risk | Picklist High Medium Low N/A | EA6 | Feature.Attribute.Name.PsraRisk | 25-02-2020 | ||
PSRA site Does this asset require a Public Safety Risk Assessment? | Picklist Yes No | EA3 | Feature.Attribute.Name.PsraSite | 25-02-2020 | ||
RASP type RASP type used for NaFRA – Refer to NaFRA guidance | Picklist | EA7 | Feature.Attribute.Name.RaspType | 25-02-2020 | ||
recommendations The inspectors recommendations from the asset inspection | Text Max Length: 1000 | EA7 | Feature.Attribute.Name.Recommendations | 25-02-2020 | ||
related event reference The reference for the related event that triggered the assessment, if applicable | Text Max Length: 20 | EA7 | Feature.Attribute.Name.RelatedEventReference | 25-02-2020 | ||
replacement cost The replacement cost of the asset | Number Max: 99,999,999 Number of decimal places: 0 Can be negative? false Units: £ | EA6 | Feature.Attribute.Name.ReplacementCost | 25-02-2020 | ||
replacement cost assessment date The date the replacement cost of the asset was assessed | Date | EA6 | Feature.Attribute.Name.ReplacementCostAssessmentDate | 25-02-2020 | ||
required DCL The required downstream crest level | Number Max: 999,999.999 Number of decimal places: 3 Can be negative? false Units: mAOD | EA7 | Feature.Attribute.Name.RequiredDcl | 25-02-2020 | ||
required UCL The required upstream crest level | Number Max: 999,999.999 Number of decimal places: 3 Can be negative? false Units: mAOD | EA7 | Feature.Attribute.Name.RequiredUcl | 25-02-2020 | ||
residual life The estimated residual life of the asset | Number Max: 98 Number of decimal places: 0 Can be negative? false Units: years | EA7 | Feature.Attribute.Name.ResidualLife | 25-02-2020 | ||
residual life date The date the residual life was assessed | Date | EA7 | Feature.Attribute.Name.ResidualLifeDate | 25-02-2020 | ||
secondary purpose 1 The secondary purpose of the asset if it has one, i.e.: an incidental purpose | Picklist Flood Risk Management Erosion Protection Water Resources Leisure and Amenity Environmental Navigation Water Level Management Fisheries Legal/statutory Highways Other | EA7 | Feature.Attribute.Name.SecondaryPurpose1 | 25-02-2020 | ||
secondary purpose 2 Another secondary purpose of the asset if it has one, i.e.: an incidental purpose | Picklist Flood Risk Management Erosion Protection Water Resources Leisure and Amenity Environmental Navigation Water Level Management Fisheries Legal/statutory Highways Other | EA7 | Feature.Attribute.Name.SecondaryPurpose2 | 25-02-2020 | ||
spatial quality The data quality flag for the spatial position of the asset. Refer to OI 57_06 | Picklist 1 2 3 4 5 6 | EA7 | Feature.Attribute.Name.SpatialQuality | 25-02-2020 | ||
structure height The total height of the structure, taken from ground level to its highest tangible point | Number Max: 199.99 Number of decimal places: 2 Can be negative? false Units: metres | EA7 | Feature.Attribute.Name.StructureHeight | 25-02-2020 | ||
structure width The total width of the structure | Number Max: 49.99 Number of decimal places: 2 Can be negative? false Units: metres | EA7 | Feature.Attribute.Name.StructureWidth | 25-02-2020 | ||
target condition The target condition of the asset – Refer to OI 026_08 | Picklist 1 2 3 4 5 9 | EA7 | Feature.Attribute.Name.TargetCondition | 25-02-2020 | ||
temporary defence Is this a temporary defence? E.g.: demountable or temporary construction | Picklist Yes No | EA3 | Feature.Attribute.Name.TemporaryDefence | 25-02-2020 | ||
toe level The toe level at the exposed face. Refer to OI 144_07 | Number Max: 999,999.999 Number of decimal places: 3 Can be negative? true Units: mAOD | EA7 | Feature.Attribute.Name.ToeLevel | 25-02-2020 | ||
urgency The urgency of the action required following the asset inspection | Picklist urgent routine | EA7 | Feature.Attribute.Name.Urgency | 25-02-2020 | ||
worst condition The worst condition taken from the list of element conditions of the asset | Picklist 1 2 3 4 5 | EA7 | Feature.Attribute.Name.WorstCondition | 25-02-2020 | ||
year last refurbished The year the asset was last refurbished | Date Format: year | EA6 | Feature.Attribute.Name.YearLastRefurbished | 25-02-2020 |