The Council maintains the culverts under the roads and also the headwall structures (the entry and exit points of the culverts).
Permission must be sought from the Council if you intend on piping a roadside culvert for property access - the Council can also provide you with information about pipe size, construction standards and location for road safety.
Maintenance of roadside ditches is generally the responsibility of the adjacent landowner - this includes ditches on the landowner's property and road frontage. In some areas of Makarewa, Myross Bush and Otatara the ratepayers pay a drainage rate and the Council, on the landowners behalf, maintains the ditches.
Permission must be sought from the Council if you intend on piping a roadside ditch for property access.