Überflurhydranten (1491 insgesamt)
| Schlüssel | Anzahl |
| emergency | 1491 |
| fire_hydrant:type | 1491 |
| fire_hydrant:position | 995 |
| fire_hydrant:diameter | 540 |
| survey:date | 284 |
| water_source | 265 |
| operator | 223 |
| name | 157 |
| couplings | 125 |
| couplings:diameters | 119 |
| fire_hydrant:pressure | 117 |
| fire_hydrant:couplings | 103 |
| couplings:type | 102 |
| pillar:type | 92 |
| description | 87 |
| ref | 81 |
| fire_hydrant:coupling_type | 75 |
| fire_hydrant:count | 60 |
| note | 46 |
| fire_hydrant:awwa_class | 44 |
| fixme | 43 |
| fire_hydrant:flow_capacity | 38 |
| flow_rate | 32 |
| colour | 16 |
| usability | 12 |
| image | 5 |
| bonnet:colour | 5 |
| water_tank:volume | 5 |
| fire_hydrant:location | 4 |
| addr:street | 4 |
| source | 3 |
| fire_hydrant:water_source | 3 |
| addr:housenumber | 3 |
| level | 2 |
| cap:colour | 2 |
| mapillary | 2 |
| disused:emergency | 1 |
| access | 1 |
| image:0 | 1 |
| fire_hydrant:note | 1 |