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Technical Specifications and Guidance Notes
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The OPW has prepared a number of technical specifications and guidance notes that it makes use of when commissioning work, such as the design of flood relief schemes and the preparation of flood maps. These may be applied as relevant by other authorities where there is an intention to work with the OPW.
Guidance on undertaking flood risk damage and benefit calculations, and in undertaking a cost benefit analysis is provided here.
TMN for CBA - Rev B - September 2018
DownloadGuidance on undertaking a multi-criteria analysis for flood risk management is provided here.
TMN for Option Appraisal and MCA - Rev B - September 2018
DownloadGuidance on undertaking Defence Asset Condition Survey, and populating the Defence Asset Database, is provided here:
TMN for DACS – Rev A – May 2019
DownloadThe specification the OPW applies for engineering spatial data, such as flood mapping data, is provided here.
Engineering Spatial Data Specification Final Rev2.2 - April 2020
DownloadThe specification the OPW applies for environmental spatial data is provided here.
Environmental Spatial Data Specification Final Rev 3.2 - July 2020
DownloadThe specification the OPW applies for use in relation to flood relief project websites is provided here.
Website Template Specification - November 2018
DownloadThe specification the OPW applies for survey, such as river channel surveys for the purpose of hydraulic modelling, is provided here.
Specification for Surveying Services - Version 3.2 - November 2019
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