Technical Specifications and Guidance Notes
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From: Office of Public Works
- Published on: 9 January 2018
- Last updated on: 4 November 2025
Introduction
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.
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.
