| Water gauge: | Grein |
| Type of water gauge: | automatically recording tide gauge and/or data collector |
| Bank: | left |
| River kilometre: | 2079.06 |
| Gauge zero (meters above Adriatic level): | 219.43 |
| LNWL ´2020 (low navigable water level): | 668 |
| AWL ´2020 (average water level): | 714 |
| HNWL ´2020 (highest navigable water level): | 860 |
| HWL 100 (centennial flood): | 1497 |