BSI PD CEN/TS 18041:2024

$102.76

Hydrometry. Sedimentation. Measurements required for effective sediment management and control at river structures

Published By	Publication Date	Number of Pages
BSI	2024	20

Guaranteed Safe Checkout

Categories: 17.120.20 - Flow in open channels, BSI

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

This document provides guidance on the collation of the measurements required for the management of siltation at river structures. These include structures used by water supply utilities, other major water abstractors, HEP producers, and for flow measurement by environmental protection agencies. The document is also intended for use when a redundant structure is being removed, or when modifications to a structure are being made to facilitate fish migration or for river restoration. This is to ensure that the impacts of these changes are adequately monitored and recorded. The document covers the provision of routine measurements, and the checks and requirements that need to be made by the operator so that specific basic information is collated and made readily available. This information is used to inform decision-making by environment management agencies that authorise flushing, sediment clearance or sedimentation removal. This is to ensure minimal environmental impacts, and to compliance with existing environmental legislation.

PDF Catalog

PDF Pages	PDF Title
2	undefined
5	European foreword
6	Introduction
7	1 Scope 2 Normative references 3 Terms and definitions 4 Underpinning legislation and regulations
8	5 Collection of data and information 5.1 General 5.2 Existing data and information
9	5.3 Hydrometric data and other data requirements 5.3.1 General 5.3.2 Daily rainfall patterns across the catchment 5.3.3 Channel cross-section and velocity profiles
10	5.3.4 River level 5.3.5 River discharge and water velocity 5.3.6 Water quality 5.3.7 Biodiversity 5.4 Sediment characteristics 5.5 Additional information for other structures on the watercourse
11	6 Establishing the monitoring programme and related activities 6.1 General 6.2 Costing 6.3 Frequency of the measurements 6.4 Duration of the monitoring programme 6.5 Monitoring techniques and methods to be used 7 Impact on carbon emissions
12	8 Allowing for uncertainty
13	Annex A (informative) A case study – Weir removal considerations on the River Rother, West Sussex, UK
15	Annex B (informative) A decision tree for transverse weir removal, based on ecological benefits and cost
16	Figure B.1 — Example of dam removal (depicted by a star)
17	Bibliography