Open Channel
Channel
An open channel is any channel that is not culverted.
Whether an open channel is completely natural, manmade or enhanced with engineered banks, it may require maintenance to meet its conveyance targets. Blockage and siltation will inhibit conveyance by altering the hydraulic profile of the channel.
An open channel is displayed in AIMS as a polyline showing the centre of the open channel.
Element Notes: Left and right bank elements are different to the channel side Element Type found in the Defence Asset Type. Whilst it covers the same physical feature it is at a different spatial scale.
25-02-2020
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 |
|---|---|---|---|---|---|
| Channel Bed | The bed of a channel | CHB | Yes | 25-02-2020 | |
| Left Bank | The left hand edge of a channel when facing downstream | LBK | Yes | 25-02-2020 | |
| Left Berm | An in-channel berm between the channel bed and the left bank | LBM | No | 25-02-2020 | |
| Right Bank | The right hand edge of a channel when facing downstream | RBK | Yes | 25-02-2020 | |
| Right Berm | An in-channel berm between the channel bed and the right bank | RBM | 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 | ||
| 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 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 CP0123 | Text Subtype code CP + sequence number | EA2 | Feature.Name.AssetRef | 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 | ||
| 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 | ||
| channel line - geometry The geometry of the channel | Geometry | EA7 | Feature.Attribute.Name.ChannelLineGeometry | 25-02-2020 | ||
| channel type The type of channel | Picklist natural flow by pass spillway overflow | EA3 | Feature.Attribute.Name.ChannelType | 25-02-2020 | ||
| channel width locatable attribute date The date the width of the channel was assessed at this location | Date | EA7 | Feature.Attribute.Name.ChannelWidthLocatableAttributeDate | 25-02-2020 | ||
| channel width locatable attribute width The width of the channel at this location | Number Max: 999.99 Number of decimal places: 2 Can be negative? false Units: metres | EA7 | Feature.Attribute.Name.ChannelWidthLocatableAttributeWidth | 25-02-2020 | ||
| comments Other comments about the asset | Text Max Length: 2000 | EA3 | Feature.Attribute.Name.Comments | 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 | ||
| 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 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 | ||
| 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 date The effective date of the inspection. Refer to Inspection documentation on KPI881 | Date | EA7 | Feature.Attribute.Name.EffectiveDate | 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 | ||
| lined channel Is it channel lined in construction material? E.g.: masonry, concrete etc. | Picklist Yes No | EA3 | Feature.Attribute.Name.LinedChannel | 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 | ||
| man-made channel Is the channel man-made? | Picklist Yes No | EA6 | Feature.Attribute.Name.ManMadeChannel | 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 | ||
| natural channel Is the channel natural? | Picklist Yes No | EA3 | Feature.Attribute.Name.NaturalChannel | 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 | ||
| 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 | ||
| 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 | ||
| summer blockage target Summer Blockage Conveyance Target – Refer to OI 339__07 | Number Max: 9 Number of decimal places: 0 Can be negative? false | EA7 | Feature.Attribute.Name.SummerBlockageTarget | 25-02-2020 | ||
| summer vegetation target Winter Blockage Conveyance Target – Refer to OI 339__07 | Number Max: 9 Number of decimal places: 0 Can be negative? false | EA7 | Feature.Attribute.Name.SummerVegetationTarget | 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 | ||
| urgency The urgency of the action required following the asset inspection | Picklist urgent routine | EA7 | Feature.Attribute.Name.Urgency | 25-02-2020 | ||
| winter blockage target Summer Vegetation Conveyance Target – Refer to OI 339__07 | Number Max: 9 Number of decimal places: 0 Can be negative? false | EA7 | Feature.Attribute.Name.WinterBlockageTarget | 25-02-2020 | ||
| winter vegetation target Winter Vegetation Conveyance Target – Refer to OI 339__07 | Number Max: 9 Number of decimal places: 0 Can be negative? false | EA7 | Feature.Attribute.Name.WinterVegetationTarget | 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 |