Simple Culvert

Channel

A simple culvert is a covered channel or large pipe to convey water below ground level, whose cross section is made of the same material throughout (for example: concrete pipe, concrete box section, brick arched).

Culverts are distinguished from outfalls because they generally have a larger cross sectional area, and they form part of the main watercourse. Outfalls discharge surface water drainage or water from a smaller watercourse into the main watercourse.

Culverts may carry a water course under a road and there is sometimes confusion as to whether they should be considered to be a bridge. The key test is whether a culvert inspection is required; if not the bridge Subtype should be used. Note that some bridges are constructed from large rectangular concrete box sections, but these should not be considered to be a culvert if they can be visually inspected from the channel bank.

A simple culvert is displayed in AIMS as a polyline showing the centre of the culverted channel.

Simple culvert
Simple culvert
Simple culvert - box
Simple culvert - box

Element Notes: Where a screen or grid is associated with a headwall it is added a separate asset Screen.

AIMS symbology for Simple Culvert
AIMS symbology for Simple Culvert
05-05-2020

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 TypeDescriptionElement CodeEssentialUniclass 2015Updates
ApronThe scour protection structure laid immediately downstream of a culvertAPNNo25-02-2020
Channel BedThe bed of a channelCHBNo25-02-2020
CulvertThe whole structure of a simple culvert between the U/S and D/S headwallsCULYes25-02-2020
D/S HeadwallThe wall supporting the outlet at the downstream end of a culvert or outfallDSHNo25-02-2020
U/S HeadwallThe wall supporting the inlet at the upstream end of a culvert or outfallUHLNo25-02-2020
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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.

AttributeFormat DetailsDeliveryPurposeMandatorygeoCOBie MappingUpdates
(Inspection) Data Quality
The inspection data quality
Picklist
1 2 3 4 5
EA7Feature.Attribute.Name.InspectionDataQuality05-05-2020
alt asset ref
The alternative asset reference used to cross reference to other data systems
Text
Max Length: 30
EA6Feature.Attribute.Name.AltAssetRef25-02-2020
Asbestos on site
Site is on the Asbestos Register?
Picklist
Yes No
EA7Feature.Attribute.Name.AsbestosOnSite03-04-2020
assessment reason
The reason for carrying out the assessment
Picklist
Scheduled Inspection Adhoc Inspection Post Incident Inspection Post Remedial Work Assessment
EA7Feature.Attribute.Name.AssessmentReason25-02-2020
assessment reason text
Any other comments about the reason for carrying out the assessment
Text
Max Length: 200
EA7Feature.Attribute.Name.AssessmentReasonText25-02-2020
asset end date
The end date of the asset. This is only to be populated when asset is withdrawn or fully decommissioned
DateEA6Feature.Attribute.Name.AssetEndDate25-02-2020
Asset ID
System generated unique ID used as a primary key
Number
Max: 9,999,999,999
Number of decimal places: 0
Can be negative? false
EA4Feature.Attribute.Name.AssetId04-04-2020
asset maintainer
The organisation or individual recognised to be the maintainer of the asset
Picklist
Environment Agency Local Authority Internal Drainage Board Private Unknown
EA7Feature.Attribute.Name.AssetMaintainer25-02-2020
Asset Name
The name of the asset if it has one
Text
Max Length: 150
EA3Feature.Attribute.Name.AssetName05-05-2020
asset operator
The organisation or individual recognised to be the operator of the asset
Picklist
Environment Agency Local Authority Internal Drainage Board Private Unknown
EA7Feature.Attribute.Name.AssetOperator25-02-2020
asset owner
The organisation or individual known to be the owner of the asset
Picklist
Environment Agency Local Authority Internal Drainage Board Private Unknown
EA7Feature.Attribute.Name.AssetOwner25-02-2020
Asset Ref
Unique asset reference code in scheme context assigned by scheme designer eg CS0123
Text
Subtype code CS + sequence number
EA2Feature.Name.AssetRef25-02-2020
asset start date
The date the asset becomes operational
DateEA6Feature.Attribute.Name.AssetStartDate25-02-2020
Asset Subtype
The subtype of asset
Picklist
Simple Culvert
EA3Feature.Attribute.Name.AssetSubtype05-05-2020
Asset Type
The type of asset
Picklist
Channel
EA3Feature.Attribute.Name.AssetType05-05-2020
calculated condition
The condition of the asset calculated from the element weightings and conditions configuration
Picklist
1 2 3 4 5
EA7Feature.Attribute.Name.CalculatedCondition25-02-2020
channel line - geometry
The geometry of the channel
GeometryEA7Feature.Attribute.Name.ChannelLineGeometry25-02-2020
Channel Type
The type of channel
Picklist
Pumped / Lowland Tidal Natural Flow Bypass Spillway Overflow
EA3Feature.Attribute.Name.ChannelType05-05-2020
Channel Width (locatable attribute date)
The date the width of the channel was assessed at this location
DateEA7Feature.Attribute.Name.ChannelWidthLocatableAttributeDate05-05-2020
Channel Width (locatable attribute)
The width of the channel at this location
Number
Max: 1,000.00
Number of decimal places: 2
Can be negative? false
Units: metres
EA7Feature.Attribute.Name.ChannelWidthLocatableAttribute05-05-2020
comments
Other comments about the asset
Text
Max Length: 2000
EA3Feature.Attribute.Name.Comments25-02-2020
Confined Spaces
Site is on the Confined Spaces Register?
Picklist
Yes No
EA7Feature.Attribute.Name.ConfinedSpaces03-04-2020
Consequence of Culvert Failure
The level of risk should the culvert become blocked
Picklist
high medium low
EA7Feature.Attribute.Name.ConsequenceOfCulvertFailure05-05-2020
Conveyance Maintainer
The organisation or individual recognised to be responsible for maintaining conveyance for this asset
Picklist
Environment Agency Local Authority Internal Drainage Board Private Unknown
EA7Feature.Attribute.Name.ConveyanceMaintainer03-04-2020
Culvert D/S Invert Level
The downstream invert level of the asset
Number
Max: 1,000.000
Number of decimal places: 3
Can be negative? true
Units: mAOD
EA6Feature.Attribute.Name.CulvertD/SInvertLevel05-05-2020
Culvert Inspection Completed Date (most recent)
The date the most recent internal culvert inspection was completed
DateEA7Feature.Attribute.Name.CulvertInspectionCompletedDateMostRecent05-05-2020
Culvert Inspection Frequency
The internal culvert inspection frequency
Number
Max: 1,200
Number of decimal places: 0
Can be negative? false
Units: 1:n months
EA7Feature.Attribute.Name.CulvertInspectionFrequency05-05-2020
Culvert U/S Invert Level
The upstream invert level of the asset
Number
Max: 1,000.000
Number of decimal places: 3
Can be negative? true
Units: mAOD
EA3Feature.Attribute.Name.CulvertU/SInvertLevel05-05-2020
Culvert U/S soffit level
U/S Soffit Level
Number
Max: 1,000.000
Number of decimal places: 3
Can be negative? false
Units: mAOD
EA4Feature.Attribute.Name.CulvertU/SSoffitLevel03-04-2020
culvert x section area
The cross section of the internal area of the asset taken at its minimum
Number
Max: 99.99
Number of decimal places: 2
Can be negative? false
Units: sq.metres
EA7Feature.Attribute.Name.CulvertXSectionArea25-02-2020
Current SOP
The Standard of Protection (1:n) that the asset currently provides, if known
Number
Max: 10,000.0
Number of decimal places: 1
Can be negative? false
Units: 1:n years
EA7Feature.Attribute.Name.CurrentSop05-05-2020
current SOP date
The date the Current Standard of Protection was appraised
DateEA7Feature.Attribute.Name.CurrentSopDate25-02-2020
Data Owner Asset Ref
Asset reference used by the management group, for example: EA NFCDD Reference
Text
Max Length: 30
EA7Feature.Attribute.Name.DataOwnerAssetRef05-05-2020
Date of Next Culvert Inspection
The date of next internal culvert inspection (CCTV or man entry)
DateEA7Feature.Attribute.Name.DateOfNextCulvertInspection05-05-2020
Decommission Status
The status of the decommissioning of the asset
Picklist
for consideration being decommissioned decommissioned
EA7Feature.Attribute.Name.DecommissionStatus05-05-2020
decommission status date
The date that the decommissioning status was set
DateEA7Feature.Attribute.Name.DecommissionStatusDate25-02-2020
Description
A brief description of the asset and / or its construction type
Text
Max Length: 400
EA3Feature.Attribute.Name.Description05-05-2020
Design SOP
The Standard of Protection (1:n) that the asset was designed to provide
Number
Max: 9,999.0
Number of decimal places: 1
Can be negative? false
Units: 1:n years
EA7Feature.Attribute.Name.DesignSop05-05-2020
Design SOP DQF
The data quality flag for the design Standard of Protection
Picklist
1 2 3 4 5 6
EA7Feature.Attribute.Name.DesignSopDqf05-05-2020
Design SOP DQF Date
The date the Data Quality Flag for Design Standard Of Protection was assessed
DateEA7Feature.Attribute.Name.DesignSopDqfDate03-04-2020
Documents
Documents related to an asset other than photographs.
Set of linked fields for each document: title, author, document description, document location, document date, document reference, document type, document protector descriptor, retention period, retention period starts, review for disposal date, version
LinkEA6Feature.Attribute.Name.Documents05-05-2020
Effective Date
The effective date of the inspection
DateEA7Feature.Attribute.Name.EffectiveDate05-05-2020
FWM Act designated
Is the asset designated under the Floods and Water Management Act 2010?
Picklist
Yes No
EA6Feature.Attribute.Name.FwmActDesignated25-02-2020
inspected by
The inspector who has inspected the asset
Text
Max Length: 20
EA7Feature.Attribute.Name.InspectedBy25-02-2020
inspection comments
The inspection comments from the asset inspection
Text
Max Length: 1000
EA7Feature.Attribute.Name.InspectionComments25-02-2020
inspection date
The date of the inspection
DateEA7Feature.Attribute.Name.InspectionDate25-02-2020
Inspection Purpose
The purpose for the inspection
Picklist
FCERM Protection
EA7Feature.Attribute.Name.InspectionPurpose05-05-2020
Interested Parties
The details for any parties that have a particular interest in asset.
Set of linked fields for each interested party: party type, organisation name, title, forename, surname, address, postcode, email, fax number, phone number 1, phone number 2, phone number 3, consent obtained
LinkEA6Feature.Attribute.Name.InterestedParties05-05-2020
Last Culvert Inspection Condition
The condition of the culvert when it had its last internal inspection
Picklist
1 2 3 4 5
EA7Feature.Attribute.Name.LastCulvertInspectionCondition05-05-2020
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
EA7Feature.Attribute.Name.Length25-02-2020
Level of Integration
Only to be used if “Asset Maintainer” is set to “Private”.
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
EA7Feature.Attribute.Name.LevelOfIntegration05-05-2020
Location
The location of the asset, for example: nearest town and/or distance downstream of named bridge
Text
Max Length: 400
EA3Feature.Attribute.Name.Location05-05-2020
Management Group
Group that has the responsibility to maintain the data requirements associated to them in the system
Picklist
EA FCRM
EA6Feature.Attribute.Name.ManagementGroup05-05-2020
Number of Culverts
The number of culverts that form this asset
Number
Max: 10
Number of decimal places: 0
Can be negative? false
EA3Feature.Attribute.Name.NumberOfCulverts04-04-2020
operational requirement
Does this asset have an operational requirement? For example: routine plant crossing
Picklist
Yes No
EA6Feature.Attribute.Name.OperationalRequirement25-02-2020
override calculated condition
Has the calculated condition been overridden?
Picklist
Yes No
EA7Feature.Attribute.Name.OverrideCalculatedCondition25-02-2020
override reason
The reason the calculated condition was overridden
Text
Max Length: 200
EA7Feature.Attribute.Name.OverrideReason25-02-2020
Parent Site
The Asset ID of the parent site that this asset is a part of, if this asset is part of a site.
Number
Max: 9,999,999,999
Number of decimal places: 0
Can be negative? false
EA4Feature.Attribute.Name.ParentSite03-04-2020
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
Health and Safety Flood Risk Management Erosion Protection Water Resources Leisure and Amenity Environmental Navigation Water Level Management Fisheries Legal / Statutory Highways Other
EA7Feature.Attribute.Name.PrimaryPurpose05-05-2020
protection type
The type of protection the asset gives
Picklist
coastal fluvial fluvial/tidal tidal
EA3Feature.Attribute.Name.ProtectionType25-02-2020
PSRA reference
The public safety risk assessment reference number
Text
Max Length: 30
EA6Feature.Attribute.Name.PsraReference25-02-2020
PSRA Risk - Site Risk Rating
The Risk Rating of the site determined by the Public Safety Risk Assessment
Picklist
Archived High Medium Low N/A
EA7Feature.Attribute.Name.PsraRisk05-05-2020
PSRA Risk - Site Risk Rating Date
The date the PSRA Risk (Site Risk Rating) was assessed
DateEA7Feature.Attribute.Name.PSRARiskDate03-04-2020
PSRA site
Does this asset require a Public Safety Risk Assessment?
Picklist
Yes No
EA3Feature.Attribute.Name.PsraSite25-02-2020
Recommendations
The inspector's recommendations from the asset inspection
Text
Max Length: 1000
EA7Feature.Attribute.Name.Recommendations05-05-2020
related event reference
The reference for the related event that triggered the assessment, if applicable
Text
Max Length: 20
EA7Feature.Attribute.Name.RelatedEventReference25-02-2020
Replacement Cost
The replacement cost of the asset
Number
Max: 99,999,999.00
Number of decimal places: 2
Can be negative? false
Units: £
EA6Feature.Attribute.Name.ReplacementCost05-05-2020
replacement cost assessment date
The date the replacement cost of the asset was assessed
DateEA6Feature.Attribute.Name.ReplacementCostAssessmentDate25-02-2020
Residual Life
The estimated residual life of the asset
Number
Max: 99
Number of decimal places: 0
Can be negative? false
Units: years
EA7Feature.Attribute.Name.ResidualLife05-05-2020
residual life date
The date the residual life was assessed
DateEA7Feature.Attribute.Name.ResidualLifeDate25-02-2020
Secondary Purpose 1
The secondary purpose of the asset if it has one, i.e.: an incidental purpose
Picklist
Health and Safety Flood Risk Management Erosion Protection Water Resources Leisure and Amenity Environmental Navigation Water Level Management Fisheries Legal / Statutory Highways Other
EA7Feature.Attribute.Name.SecondaryPurpose105-05-2020
Secondary Purpose 2
Another secondary purpose of the asset if it has one, i.e.: an incidental purpose
Picklist
Health and Safety Flood Risk Management Erosion Protection Water Resources Leisure and Amenity Environmental Navigation Water Level Management Fisheries Legal / Statutory Highways Other
EA7Feature.Attribute.Name.SecondaryPurpose205-05-2020
Spatial Quality
The data quality flag for the spatial position of the asset
Picklist
1 2 3 4 5 6
EA7Feature.Attribute.Name.SpatialQuality05-05-2020
Summer Blockage Target
Summer Blockage Conveyance Target
Number
Max: 10
Number of decimal places: 0
Can be negative? false
EA7Feature.Attribute.Name.SummerBlockageTarget05-05-2020
Summer Vegetation Target
Summer Vegetation Conveyance Target
Number
Max: 10
Number of decimal places: 0
Can be negative? false
EA7Feature.Attribute.Name.SummerVegetationTarget05-05-2020
Target Condition
The target condition of the asset
Picklist
1 2 3 4 5 9
EA7Feature.Attribute.Name.TargetCondition05-05-2020
urgency
The urgency of the action required following the asset inspection
Picklist
urgent routine
EA7Feature.Attribute.Name.Urgency25-02-2020
Weight Limit (Bridge)
The weight limit of the bridge if used for vehicular access
Number
Max: 100.00
Number of decimal places: 2
Can be negative? false
Units: tonnes
EA3Feature.Attribute.Name.WeightLimitBridge04-04-2020
Winter Blockage Target
Winter Blockage Conveyance Target
Number
Max: 10
Number of decimal places: 0
Can be negative? false
EA7Feature.Attribute.Name.WinterBlockageTarget05-05-2020
Winter Vegetation Target
Winter Vegetation Conveyance Target
Number
Max: 10
Number of decimal places: 0
Can be negative? false
EA7Feature.Attribute.Name.WinterVegetationTarget05-05-2020
worst condition
The worst condition taken from the list of element conditions of the asset
Picklist
1 2 3 4 5
EA7Feature.Attribute.Name.WorstCondition25-02-2020
Year Last Refurbished
The year the asset was last refurbished
Number
Max: 2,099
Number of decimal places: 0
Can be negative? false
Units: year
EA6Feature.Attribute.Name.YearLastRefurbished05-05-2020
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