Brughoogten

Doorvaartopening (beweegbaar) Langmanbrug

Opening #61 ยท route 51268

Back

Latest Clearance

2.69 m ok
Water station
groningen Groningen
Water observed
2026-08-28 05:00:00
Water level
-0.870 m
Calculated
2026-08-28 06:10:39
Formula
kp_clearance_height_adjusted_by_current_nap_water_level

FIS Opening Fields

Source id
fis.opening:61
Parent id
55476 (bridge)
Reference level
n/a
Height closed
1.820 m
Clearance height closed
1.200 m
Height opened
n/a
Width
16.000 m
Sill depth
n/a
Route km
0.900 - 0.947

Parent Bridge

Name
Langmanbrug
Local id
2350
RWS id
55476
Source id
fis.bridge:2350
Reference level
KP
MHW reference
CANAL
MHW offset
n/a
Can open
yes

Linked Water Stations

Station Method Distance Confidence Latest Observation Level
groningen
Groningen
nearest_spatial 1,673 m 0.83 2026-08-28 05:00:00 -0.870 m

Recent Clearance History

Calculated Water Observed Water Level Clearance Status Formula
2026-08-28 06:10:39 2026-08-28 05:00:00 -0.870 m 2.690 m ok kp_clearance_height_adjusted_by_current_nap_water_level
2026-08-28 05:10:28 2026-08-28 04:10:00 -0.880 m 2.700 m ok kp_clearance_height_adjusted_by_current_nap_water_level
2026-08-28 04:10:15 2026-08-28 03:00:00 -0.880 m 2.700 m ok kp_clearance_height_adjusted_by_current_nap_water_level
2026-08-28 03:10:04 2026-08-28 02:00:00 -0.890 m 2.710 m ok kp_clearance_height_adjusted_by_current_nap_water_level
2026-08-28 02:09:52 2026-08-28 01:00:00 -0.880 m 2.700 m ok kp_clearance_height_adjusted_by_current_nap_water_level
2026-08-28 01:09:40 2026-08-28 00:00:00 -0.900 m 2.720 m ok kp_clearance_height_adjusted_by_current_nap_water_level
2026-08-28 00:09:28 2026-08-27 23:00:00 -0.900 m 2.720 m ok kp_clearance_height_adjusted_by_current_nap_water_level
2026-08-27 23:09:16 2026-08-27 22:00:00 -0.880 m 2.700 m ok kp_clearance_height_adjusted_by_current_nap_water_level
2026-08-27 22:09:04 2026-08-27 21:00:00 -0.900 m 2.720 m ok kp_clearance_height_adjusted_by_current_nap_water_level
2026-08-27 21:08:52 2026-08-27 20:10:00 -0.880 m 2.700 m ok kp_clearance_height_adjusted_by_current_nap_water_level
2026-08-27 20:08:39 2026-08-27 19:00:00 -0.910 m 2.730 m ok kp_clearance_height_adjusted_by_current_nap_water_level
2026-08-27 19:08:26 2026-08-27 18:10:00 -0.900 m 2.720 m ok kp_clearance_height_adjusted_by_current_nap_water_level
2026-08-27 18:08:11 2026-08-27 17:00:00 -0.900 m 2.720 m ok kp_clearance_height_adjusted_by_current_nap_water_level
2026-08-27 17:07:49 2026-08-27 16:10:00 -0.890 m 2.710 m ok kp_clearance_height_adjusted_by_current_nap_water_level
2026-08-27 16:07:30 2026-08-27 15:00:00 -0.890 m 2.710 m ok kp_clearance_height_adjusted_by_current_nap_water_level
2026-08-27 15:07:18 2026-08-27 14:00:00 -0.900 m 2.720 m ok kp_clearance_height_adjusted_by_current_nap_water_level
2026-08-27 14:07:06 2026-08-27 13:00:00 -0.890 m 2.710 m ok kp_clearance_height_adjusted_by_current_nap_water_level
2026-08-27 13:06:55 2026-08-27 12:00:00 -0.900 m 2.720 m ok kp_clearance_height_adjusted_by_current_nap_water_level
2026-08-27 12:06:43 2026-08-27 11:00:00 -0.900 m 2.720 m ok kp_clearance_height_adjusted_by_current_nap_water_level
2026-08-27 11:06:31 2026-08-27 10:00:00 -0.890 m 2.710 m ok kp_clearance_height_adjusted_by_current_nap_water_level

Calculation Basis

{
    "formula": {
        "kind": "kp_clearance_height_adjusted_by_current_nap_water_level",
        "expression": "clearance_height_closed_m + ((height_closed_m - clearance_height_closed_m) - water_level_m)",
        "water_source": "water_level_observation.value_m",
        "height_source": "fis_bridge_opening.clearance_height_closed_m adjusted by inferred KP level",
        "kp_reference_level_nap": 0.62,
        "reference_level_source": "fis_bridge.reference_level",
        "reference_level_decision": "KP is treated as fixed kanaalpeil; FIS clearance height is adjusted by the current NAP water level delta from inferred KP",
        "effective_reference_level": "KP",
        "current_water_delta_from_kp_m": -1.49
    },
    "station_link": {
        "active": true,
        "method": "nearest_spatial",
        "confidence": 0.8327,
        "distance_m": 1672.69,
        "reviewed_at": null
    },
    "parent_bridge": {
        "id": 2350,
        "name": "Langmanbrug",
        "rws_id": "55476",
        "can_open": true,
        "source_id": "fis.bridge:2350",
        "mhw_offset": null,
        "reference_level": "KP",
        "mhw_reference_level": null
    },
    "bridge_opening": {
        "id": 61,
        "name": "Doorvaartopening (beweegbaar) Langmanbrug",
        "route_id": "51268",
        "source_id": "fis.opening:61",
        "fairway_id": "31184",
        "route_km_end": 0.947,
        "route_km_begin": 0.9,
        "height_closed_m": 1.82,
        "height_opened_m": null,
        "reference_level": null,
        "fairway_section_id": "38322",
        "clearance_height_closed_m": 1.2,
        "clearance_height_opened_m": null
    },
    "water_observation": {
        "value_m": -0.87,
        "value_cm": -87,
        "observed_at": "2026-08-28T05:00:00+00:00",
        "process_type": "meting",
        "quality_code": "00",
        "retrieved_at": "2026-08-28T06:10:30.882836+00:00",
        "station_code": "groningen",
        "reference_level": "NAP"
    }
}

Geometry GeoJSON

{
    "type": "Point",
    "coordinates": [
        6.599746943,
        53.213850123
    ]
}

Raw FIS JSON

{
    "id": 61,
    "type": "Feature",
    "geometry": {
        "type": "Point",
        "coordinates": [
            6.599746943000071,
            53.21385012300004
        ]
    },
    "properties": {
        "id": 2440,
        "name": "Doorvaartopening (beweegbaar) Langmanbrug",
        "note": null,
        "type": "OPH",
        "width": 16,
        "isrsid": 9074373,
        "number": 1,
        "geotype": "opening",
        "routeid": 51268,
        "vincode": "59237",
        "objectid": 61,
        "parentid": 55476,
        "condition": "CONSTRUCTED",
        "fairwayid": 31184,
        "silldepth": null,
        "routekmend": 0.9470000000000001,
        "foreigncode": null,
        "orientation": null,
        "widthconvoy": 16,
        "heightclosed": 1.82,
        "heightopened": null,
        "routekmbegin": 0.9,
        "geogeneration": 3310,
        "parentgeotype": "bridge",
        "fairwaysectionid": 38322,
        "passagedurationm": 10,
        "clearanceheightclosed": 1.2,
        "clearanceheightopened": null
    }
}