Watercourse screen
Culvert, screen and outfall manual, (CIRIA C786) published by CIRIA in 2019, defines a screen as: ‘An arrangement of bars, grids or poles placed in a watercourse.’
A course screen is: ‘A course screen designed to collect large debris, usually upstream of a culvert.’
A debris screen or trash screen is a: ‘Screen at the inlet of a culvert designed to prevent debris from entering the culvert and causing a blockage.’
A fish screen is: ‘A screen designed to prevent fish being washed into culverts (usually on outlets to ponds and reservoirs).’
A safety screen or security screen is: ‘A screen comprising closely-spaced bars, designed to prevent unauthorised or accidental access to a conduit or other hydraulic structure, which reduces the risk of someone coming to harm.’
A tree screen is a: ‘ Screen upstream of a culvert designed to prevent tree trunks and branches from blocking a culvert or debris screen.’
A weed screen is: ‘A screen comprising closely-spaced bars designed to prevent floating vegetation and small debris entering water intakes and pumping stations.’
[edit] Related articles on Designing Buildings Wiki
Featured articles and news
BREEAM offers its resilient approach to Building Back Better.
Northern Ireland infrastructure advisory board
Country moves one step closer to creating independent body.
Heat pump projections for the next decade
BSRIA examines factors driving the industry.
Ensuring designs are developed, validated and can be effectively implemented.
The Homebuyer Survey most suitable for newer homes or simple properties.
Health and safety practices for body and mind.
Planning in a post-COVID world
28 leading bodies set out their vision for the future.
Updates to Job Support and Self-Employed Grant Schemes
Chancellor announces latest Winter Support packages.
Tapping technology to boost infrastructure and create jobs.
4 ways to ensure certificates are valid.
White elephant construction projects.
How Paul Williams bent over backwards to overcome racial barriers.
CLC SOP recommendations updated
Organisation revises actions around dealing with COVID-19.
CIOB, NFCC, RIBA, RICS call for changes ahead of Building Safety Bill.