National Network of Regional Coastal Monitoring Programmes

Asset Register Glossary & Data Sources

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The asset register collates information on a wide selection of coastal defence assets within the area covered by the National Network of Regional Coastal Monitoring Programmes (NNRCMP). Much of the information within the register is collated from existing databases held and maintained by local authorities, the Environment Agency and other government bodies. The aim is to update the register at least every two years.

The attributes available in the register are based on availability in local databases and on attribute lists used by the Environment Agency's Asset Information and Maintenance System (AIMS). Condition scores within the asset register are typically determined using T98 standards, based on information in the Environment Agency's One Business Condition Assessment Manual (OBCAM).

Other sources of information are:

  • Geology from the British Geological Survey (BGS) 50k bedrock shapefile.
  • Tide levels from Admiralty Total Tide.
  • Foreshore information from topographic data collected by the NNRCMP.

Attributes

Name Description

Asset Reference

Automatically generated integer by CCO, unique for every asset.

Alternative Asset Reference

Asset reference used by inspecting organisation

Location

The location of the asset, for example: nearest town and/or distance downstream of named bridge

Littoral Cell

Littoral sub-cell in which the asset lies e.g. 5f for Poole Bay

Easting

The easting of the estimated midpoint of the asset (British National Grid)

Northing

The northing of the estimated midpoint of the asset (British National Grid)

Asset Type

The type of asset as defined in AIMS, e.g. Engineered High Ground

Asset Category

Category of asset as defined in AIMS, e.g. Beach Structure

Asset Name

Name of the asset (not reference number)

Description

A brief description of the asset and/or its construction type

Linear Asset Length

The length of the asset

Asset Material

General material of the asset

Geology

Geology at the location of the asset (from BGS Onshore Geology 50k bedrock RCS)

Water Level (MHWS)

Elevation of Mean High Water Springs

Water Level: Highest Recorded

Elevation of the highest recorded water level

Water Level (MLWS)

Elevation of Mean Low Water Springs

Tide Station

Tide station used as source of water level values

Asset Construction Date

Date that the asset was built

Primary Purpose

The main purpose of the asset, i.e. the reason it was constructed (a natural asset may have an asset management purpose)

Alternative Purpose

An alternative purpose of the asset, i.e. the reason it was constructed (a natural asset may have an asset management purpose)

SMP Policy Number

Shoreline management plan number e.g.SMP 13 for Selesey Bill to Hurst Spit

SMP Policy Unit Number

Shoreline management plan policy unit number e.g.A.1 for Hurst Spit

SMP Policy E1

Shoreline management plan policy for Epoch 1 (0-20 years) e.g.hold the line

SMP Policy E2

Shoreline management plan policy for Epoch 2 (20-50 years) e.g.hold the line

SMP Policy E3

Shoreline management plan policy for Epoch 3 (50-100 years) e.g.hold the line

Photo

Overview image of the asset

Geometry

Linestring of the position of the asset for use in GIS Software

Inspection Reference

Automatically generated integer by CCO, unique for every inspection

Alternative Inspection Record

Inspection reference used by inspecting organisation

Topographic Profile

The name of the NNRCMP profile from which foreshore data was obtained

Inspection Date

Date of inspection

Advanced Attributes

Name Description

Asset Type Local

The type of asset as defined by the Surveyor e.g. Sea Wall

Foreshore Material

Material of feature in front of asset e.g. Sand

Design Slope

Designed slope of the beach as defined in the Beach Management Plan

Design CSA

The designed cross-sectional area of the beach. Higher than maintenance level, this takes into consideration the impact of the defence failing, and builds in an appropriate factor of safety

Maintenance CSA

The level to which the beach is maintained. Higher than critical level

Critical CSA

The minimum beach cross-sectional area required to prevent overtopping exceeding tolerable limits and/or significant risk of structural damage or undermining

Action Crest Level

Elevation of the beach crest at which action is advised

Crisis Crest Level

The minimum beach crest level required to prevent overtopping exceeding tolerable limits and/or significant risk of structural damage or undermining

Target Condition

The condition that the asset is aimed to be maintained to

Design SOP

The level of return period event (1 in n years) which the defence is designed to withstand without experiencing significant failure.

Design SOP Date

Date the Design SOP was determined

Asset Decommissioning Date

Date that the asset was decommissioned

Owner

The organisation or private individual known to be the owner of the asset

Maintainer

The organisation or private individual recognised to be the maintainer of the asset.

Operator

The organisation or private individual recognised to be the operator of the asset

Risk Management Authority

The risk management authority in the area of the asset.

Data Owner

Data Owned by: ________, and distributed by Channel Coastal Observatory

Inspection Frequency

Frequency of inspections

Effective Crest Level

Measured crest elevation at the lowest point along a linear defence asset

Effective Crest Level Method

Method used to measure the effective crest level

Effective Crest Level Date

Date that the effective crest level was measured, or the date of collection of the source data from which the effective crest level was extracted

Crest Level

Average/typical crest elevation along a linear defence asset

Crest Level Method

Method used to measure the crest level

Crest Level Date

Date that the crest level was measured, or the date of collection of the source data from which the crest level was extracted

Actual DCL

Measured crest elevation at the downstream extent of a fluvial/tidal linear asset, or at the right-most extent of a coastal linear asset when looking out to sea

Actual UCL

Measured crest elevation at the upstream extent of a fluvial/tidal linear asset, or at the left-most extent of a coastal linear asset when looking out to sea

Foreshore Scour

Extent of foreshore scour

Calculated Condition

The overall calculated condition of the asset based on the actual condition of the elements and the element weightings

Manual Override

To alter the condition grade of an element in case of 'Element Not Inspected' (ENI) because a previous inspection grade is still valid. Alternatively, to downgrade the condition grade of the asset where a 9-weighted element is in poorer condition than the calculated condition.

Comments

Other comments about the asset

Foreshore Level

Elevation of the foreshore, seaward, derived from a single profile directly in front of the asset

Foreshore Survey Date

Date of survey of the foreshore environment

Calculated Slope

Slope of the beach over the entire Profile. Measured from the elevation of the foreshore directly in front of the asset to Mean Low Water Springs. Derived from a single profile directly in front of the asset

Beach Crest Level

Elevation of the beach crest, derived from a single profile directly in front of the asset

Beach CSA

The cross-sectional area of the beach

Distance Crest to Back of Beach

Distance between the beach crest and the back of beach, derived from a single profile directly in front of the asset

Current SOP

The level of return period event (1 in n years) which the defence is expected to withstand without experiencing significant failure

Current SOP Data Quality Flag

Method used to determine the Current SOP

Current SOP Date

Date the Current SOP was determined

Residual Life

The estimated residual life of the asset

Residual Life Date

The date the residual life was assessed

Data Supplier

The organisation that supplied the data

Data Supplied Date

Date that the data was supplied to the CCO

Inspection Reason

Reason for inspection

Inspecting Organisation

The organisation that carried out the inspection

Inspection Comments

Comments related to the condition, to include justification for why the condition grade was given

Inspection Recommendations

The work needed to bring the asset back to target condition, or keep the asset at target condition.

Urgency of repair/maintenance works

Urgency of work

Date of Last Assessment / Inspection

Date of previous inspection

Date of Next Assessment/Inspection

Date of next scheduled inspection

Data Quality

Quality comment on an inspection record

Final Asset Condition

The final recorded condition of the asset after inspection and any manual override

File (Document)

A document related to the asset, other than a photograph

Element Reference

Automatically generated integer by CCO, unique for every inspection of every element

Inspection Reference

Automatically generated integer by CCO, unique for every inspection

Alternative Element Reference

Element reference used by the inspecting organisation

Element Type

The type of element as defined in AIMS

Element Type Local

The type of element as defined by the Inspector

Element Description

A brief description of the element

Element Material

The material of the element

Element Weighting

The weighting of the individual element

Element Condition

The condition grade of the element

Element Not Inspected

Indicates if the element was not able to be inspected