Minimum cover table B below reflects industry standards (AS/NZS 2566.2:1998) in the minimum cover recommended.
| Loading Condition | Minimum cover (m) |
|---|---|
| Not subject to vehicular loading | 0.3 |
| Land zoned for agricultural loading | 0.6 |
| Subject to vehicular loading | |
| (a) no carriageway | 0.45 |
| (b) sealed carriageway | 0.6 |
| (c) unsealed carriageway | 0.75 |
| Pipilines in embarkments or subject to construction equipment loads | 0.75 |