The pipe can be made aof plastic or concrete.
No, Culverts can only be placed in relatively small drains.
No, smaller pipes are more vulnerable to blockages, a single large pipe is safer. Two pipes would be more expensive as well.
For the full details on requirements for this action you should read the Dept. of Agriculture, Food and the Marine’s Specifications for Non Productive Investments.
Maintain access across drains for people, livestock and vehicles, helps protect water quality.
For the full details on requirements for this action you should read the Dept. of Agriculture, Food and the Marine’s Specifications for Non Productive Investments.
For small drains only, not suitable for natural watercourses or drains with large peak flows.
A single large pipe is better than multiple small pipes.
Good Locations:
Poor Locations: