Technical Specifications and Guidance Notes

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 the preparation of Scheme Climate Change Adaptation Plans (SCCAPs) as part of the design and implementation of new flood relief projects is provided here:

Management of Soil and Stone By-Products on Flood Relief Schemes is provided here:

Interim guidance on carrying out the economic appraisal of flood relief schemes is provided here.

Guidance on undertaking a multi-criteria analysis for flood risk management is provided here.

Guidance on undertaking Defence Asset Condition Survey, and populating the Defence Asset Database, is provided here:

The specification the OPW applies for engineering spatial data, such as flood mapping data, is provided here.

All spatial data created for the Project must be produced and submitted according to the specifications documented in this standard.

Note: This new specification fully replaces the Engineering Spatial Data Specification Final Rev2.3 - September 2021

The specification that the OPW applies for environmental spatial data collected across the organisation is provided here.

Note: This new specification fully replaces the Flood Relief Scheme Environmental Spatial Data Specification Final Rev 3.2 - July 2020

The specification the OPW applies for survey, such as river channel surveys for the purpose of hydraulic modelling, is provided here.