CONCRETE FLUME DIFFUSER INSTALL

complies with the Culvert design and operation guide (C689).

You can also use HDPE rigid plastic twin-wall manufactured to BS-EN5

meets relevant British Standards, that is culverts must be constructed using concrete pipes that comply with BS 5911 and BS EN 1916, pipework must be laid in accordance with BS 8000 - examine copies of the most up-to-date standards for guidance.where the above standard specifications for the culvert are not suitable for the weight of machinery using the crossing, applicants must obtain advice from a drainage or bridge engineer and complete the works in accordance with their advice - applicants are responsible for ensuring the culvert does not collapse.maintain the culvert for the duration of the agreement, removing debris that builds up so as to maintain flow.

CONCRETE FLUME DIFFUSER INSTALL

install retaining sidewalls to local style and backfill with scalpings to field level (you may also need a membrane to prevent stone washing out).

grade the ditch bed downstream if any deepening is needed to accommodate the culvert.

make sure that the pipe invert (the level of the inside bottom of the pipe) at the upstream end is fractionally below the bottom of the true ditch bed.

make sure that the pipe gradient approximates to that of the ditch bed.

set the pipes on a firm bed and in true alignment.

less than 4m acceptable for livestock footpaths and bridleways.

minimum width of 4m for wheeled traffic.

Make sure that the pipe lengths give a useable width at ground level that is appropriate for the traffic using the crossing:

make sure that pipes have a positive joint to preserve alignment.

install a concrete or rigid plastic twin-wall pipe at least 450mm in diameter, following the manufacturer’s instructions.

farm machinery or livestock crossing tracks safely.

runoff of expected flows diverted under a track so farm machinery and livestock can cross.

This will reduce the disturbance to the watercourse which will help reduce sedimentation and bacterial levels in the water. This watercourse crossing will provide access for farm machinery or livestock.

How this item will benefit the environment without relevant advice or consents from the Environment Agency (EA) or flood defence consenting authority (new culverts only).where it will restrict the movement of migratory fish or eels.where it may damage an environmental, historical or archaeological feature identified on the Farm Environment Record ( FER), the Environmental Information Map or the HEFER.in combination with options for the management and restoration of habitats or features with the support of a Natural England adviser.to install a new culvert or to replace an existing collapsed structure in areas targeted to reduce water pollution from agriculture.Where to use this itemĪvailable for Countryside Stewardship Mid Tier, Higher Tier and Capital Grants.

Concrete flume diffuser