Doorvaartopening 1 (vast) Amertakbrug

Opening #764 · route 21486

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Latest Clearance

7.44 m ok

Water station: hank.bergschemaas Keizersveer
Water observed: 2026-10-12 20:50:00
Water level: 0.480 m
Calculated: 2026-10-12 21:17:01
Formula: height_closed_minus_water_level

FIS Opening Fields

Source id: fis.opening:764
Parent id: 42694 (bridge)
Reference level: n/a
Height closed: 7.920 m
Clearance height closed: 6.120 m
Height opened: n/a
Width: 30.000 m
Sill depth: n/a
Route km: 1.800 - 1.833

Parent Bridge

Name: Amertakbrug
Local id: 1789
RWS id: 42694
Source id: fis.bridge:1789
Reference level: NAP
MHW reference: RIVER
MHW offset: 1.8000
Can open: yes

Linked Water Stations

Station	Method	Distance	Confidence	Latest Observation	Level
`hank.bergschemaas` Keizersveer	nearest_spatial	5,126 m	0.49	2026-10-12 20:50:00	0.480 m

Recent Clearance History

Calculated	Water Observed	Water Level	Clearance	Status	Formula
2026-10-12 21:17:01	2026-10-12 20:50:00	0.480 m	7.440 m	ok	`height_closed_minus_water_level`
2026-10-12 20:16:51	2026-10-12 19:50:00	0.480 m	7.440 m	ok	`height_closed_minus_water_level`
2026-10-12 19:16:40	2026-10-12 18:50:00	0.500 m	7.420 m	ok	`height_closed_minus_water_level`
2026-10-12 18:16:30	2026-10-12 18:00:00	0.500 m	7.420 m	ok	`height_closed_minus_water_level`
2026-10-12 17:16:19	2026-10-12 16:50:00	0.370 m	7.550 m	ok	`height_closed_minus_water_level`
2026-10-12 16:16:09	2026-10-12 16:00:00	0.290 m	7.630 m	ok	`height_closed_minus_water_level`
2026-10-12 15:15:59	2026-10-12 15:00:00	0.310 m	7.610 m	ok	`height_closed_minus_water_level`
2026-10-12 14:15:48	2026-10-12 13:50:00	0.370 m	7.550 m	ok	`height_closed_minus_water_level`
2026-10-12 13:15:39	2026-10-12 12:50:00	0.420 m	7.500 m	ok	`height_closed_minus_water_level`
2026-10-12 12:15:28	2026-10-12 11:50:00	0.490 m	7.430 m	ok	`height_closed_minus_water_level`
2026-10-12 11:15:17	2026-10-12 11:00:00	0.510 m	7.410 m	ok	`height_closed_minus_water_level`
2026-10-12 10:15:07	2026-10-12 09:50:00	0.530 m	7.390 m	ok	`height_closed_minus_water_level`
2026-10-12 09:14:57	2026-10-12 09:00:00	0.600 m	7.320 m	ok	`height_closed_minus_water_level`
2026-10-12 08:14:46	2026-10-12 07:50:00	0.610 m	7.310 m	ok	`height_closed_minus_water_level`
2026-10-12 07:14:35	2026-10-12 06:50:00	0.590 m	7.330 m	ok	`height_closed_minus_water_level`
2026-10-12 06:14:22	2026-10-12 05:50:00	0.610 m	7.310 m	ok	`height_closed_minus_water_level`
2026-10-12 05:14:11	2026-10-12 04:50:00	0.520 m	7.400 m	ok	`height_closed_minus_water_level`
2026-10-12 04:13:57	2026-10-12 03:50:00	0.400 m	7.520 m	ok	`height_closed_minus_water_level`
2026-10-12 03:13:47	2026-10-12 03:00:00	0.390 m	7.530 m	ok	`height_closed_minus_water_level`
2026-10-12 02:13:36	2026-10-12 02:00:00	0.440 m	7.480 m	ok	`height_closed_minus_water_level`

Calculation Basis

{
    "formula": {
        "kind": "height_closed_minus_water_level",
        "expression": "height_closed_m - water_level_m",
        "water_source": "water_level_observation.value_m",
        "height_source": "fis_bridge_opening.height_closed_m",
        "reference_level_source": "fis_bridge.reference_level",
        "reference_level_decision": "NAP reference level detected on opening or parent bridge",
        "effective_reference_level": "NAP"
    },
    "station_link": {
        "active": true,
        "method": "nearest_spatial",
        "confidence": 0.4874,
        "distance_m": 5125.93,
        "reviewed_at": null
    },
    "parent_bridge": {
        "id": 1789,
        "name": "Amertakbrug",
        "rws_id": "42694",
        "can_open": true,
        "source_id": "fis.bridge:1789",
        "mhw_offset": 1.8,
        "reference_level": "NAP",
        "mhw_reference_level": null
    },
    "bridge_opening": {
        "id": 764,
        "name": "Doorvaartopening 1 (vast) Amertakbrug",
        "route_id": "21486",
        "source_id": "fis.opening:764",
        "fairway_id": "19173",
        "route_km_end": 1.833,
        "route_km_begin": 1.8,
        "height_closed_m": 7.92,
        "height_opened_m": null,
        "reference_level": null,
        "fairway_section_id": "39547",
        "clearance_height_closed_m": 6.12,
        "clearance_height_opened_m": null
    },
    "water_observation": {
        "value_m": 0.48,
        "value_cm": 48,
        "observed_at": "2026-10-12T20:50:00+00:00",
        "process_type": "meting",
        "quality_code": "00",
        "retrieved_at": "2026-10-12T21:16:54.075964+00:00",
        "station_code": "hank.bergschemaas",
        "reference_level": "NAP"
    }
}

Geometry GeoJSON

{
    "type": "Point",
    "coordinates": [
        4.830617039,
        51.695186943
    ]
}

Raw FIS JSON

{
    "id": 764,
    "type": "Feature",
    "geometry": {
        "type": "Point",
        "coordinates": [
            4.83061703900006,
            51.69518694300007
        ]
    },
    "properties": {
        "id": 15476,
        "name": "Doorvaartopening 1 (vast) Amertakbrug",
        "note": null,
        "type": "VST",
        "width": 30,
        "isrsid": 9063743,
        "number": 1,
        "geotype": "opening",
        "routeid": 21486,
        "vincode": "5825",
        "objectid": 764,
        "parentid": 42694,
        "condition": "CONSTRUCTED",
        "fairwayid": 19173,
        "silldepth": null,
        "routekmend": 1.8330000000000002,
        "foreigncode": null,
        "orientation": "O",
        "widthconvoy": 30,
        "heightclosed": 7.92,
        "heightopened": null,
        "routekmbegin": 1.8,
        "geogeneration": 3310,
        "parentgeotype": "bridge",
        "fairwaysectionid": 39547,
        "passagedurationm": 0,
        "clearanceheightclosed": 6.12,
        "clearanceheightopened": null
    }
}