Doorvaartopening (beweegbaar) Oosterophaalbrug

Opening #10 · route 12458

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Latest Clearance

-0.74 m ok

Water station: delfzijl.oudeeemskanaal.spuisluis Delfzijl Oude Eemskanaal Spuisluis
Water observed: 2026-08-28 05:30:00
Water level: 0.540 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:10
Parent id: 30013 (bridge)
Reference level: n/a
Height closed: -0.200 m
Clearance height closed: 1.130 m
Height opened: n/a
Width: 8.880 m
Sill depth: n/a
Route km: 19.779 - 19.779

Parent Bridge

Name: Oosterophaalbrug
Local id: 1261
RWS id: 30013
Source id: fis.bridge:1261
Reference level: KP
MHW reference: CANAL
MHW offset: n/a
Can open: yes

Linked Water Stations

Station	Method	Distance	Confidence	Latest Observation	Level
`delfzijl.oudeeemskanaal.spuisluis` Delfzijl Oude Eemskanaal Spuisluis	nearest_spatial	4,413 m	0.56	2026-08-28 05:30:00	0.540 m

Recent Clearance History

Calculated	Water Observed	Water Level	Clearance	Status	Formula
2026-08-28 06:10:39	2026-08-28 05:30:00	0.540 m	-0.740 m	ok	`kp_clearance_height_adjusted_by_current_nap_water_level`
2026-08-28 05:10:28	2026-08-28 04:40:00	0.520 m	-0.720 m	ok	`kp_clearance_height_adjusted_by_current_nap_water_level`
2026-08-28 04:10:15	2026-08-28 03:40:00	0.530 m	-0.730 m	ok	`kp_clearance_height_adjusted_by_current_nap_water_level`
2026-08-28 03:10:04	2026-08-28 02:30:00	0.530 m	-0.730 m	ok	`kp_clearance_height_adjusted_by_current_nap_water_level`
2026-08-28 02:09:52	2026-08-28 01:30:00	0.540 m	-0.740 m	ok	`kp_clearance_height_adjusted_by_current_nap_water_level`
2026-08-28 01:09:40	2026-08-28 00:40:00	0.520 m	-0.720 m	ok	`kp_clearance_height_adjusted_by_current_nap_water_level`
2026-08-28 00:09:28	2026-08-27 23:40:00	0.510 m	-0.710 m	ok	`kp_clearance_height_adjusted_by_current_nap_water_level`
2026-08-27 23:09:16	2026-08-27 22:30:00	0.500 m	-0.700 m	ok	`kp_clearance_height_adjusted_by_current_nap_water_level`
2026-08-27 22:09:04	2026-08-27 21:40:00	0.510 m	-0.710 m	ok	`kp_clearance_height_adjusted_by_current_nap_water_level`
2026-08-27 21:08:52	2026-08-27 20:30:00	0.460 m	-0.660 m	ok	`kp_clearance_height_adjusted_by_current_nap_water_level`
2026-08-27 20:08:39	2026-08-27 19:30:00	0.510 m	-0.710 m	ok	`kp_clearance_height_adjusted_by_current_nap_water_level`
2026-08-27 19:08:26	2026-08-27 18:30:00	0.510 m	-0.710 m	ok	`kp_clearance_height_adjusted_by_current_nap_water_level`
2026-08-27 18:08:11	2026-08-27 17:30:00	0.500 m	-0.700 m	ok	`kp_clearance_height_adjusted_by_current_nap_water_level`
2026-08-27 17:07:49	2026-08-27 16:40:00	0.530 m	-0.730 m	ok	`kp_clearance_height_adjusted_by_current_nap_water_level`
2026-08-27 16:07:30	2026-08-27 15:40:00	0.510 m	-0.710 m	ok	`kp_clearance_height_adjusted_by_current_nap_water_level`
2026-08-27 15:07:18	2026-08-27 14:30:00	0.490 m	-0.690 m	ok	`kp_clearance_height_adjusted_by_current_nap_water_level`
2026-08-27 14:07:06	2026-08-27 13:30:00	0.520 m	-0.720 m	ok	`kp_clearance_height_adjusted_by_current_nap_water_level`
2026-08-27 13:06:55	2026-08-27 12:30:00	0.510 m	-0.710 m	ok	`kp_clearance_height_adjusted_by_current_nap_water_level`
2026-08-27 12:06:43	2026-08-27 11:40:00	0.490 m	-0.690 m	ok	`kp_clearance_height_adjusted_by_current_nap_water_level`
2026-08-27 11:06:31	2026-08-27 10:30:00	0.550 m	-0.750 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": -1.33,
        "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": 1.87
    },
    "station_link": {
        "active": true,
        "method": "nearest_spatial",
        "confidence": 0.5587,
        "distance_m": 4413.23,
        "reviewed_at": null
    },
    "parent_bridge": {
        "id": 1261,
        "name": "Oosterophaalbrug",
        "rws_id": "30013",
        "can_open": true,
        "source_id": "fis.bridge:1261",
        "mhw_offset": null,
        "reference_level": "KP",
        "mhw_reference_level": null
    },
    "bridge_opening": {
        "id": 10,
        "name": "Doorvaartopening (beweegbaar) Oosterophaalbrug",
        "route_id": "12458",
        "source_id": "fis.opening:10",
        "fairway_id": "57628",
        "route_km_end": 19.779,
        "route_km_begin": 19.779,
        "height_closed_m": -0.2,
        "height_opened_m": null,
        "reference_level": null,
        "fairway_section_id": "9131",
        "clearance_height_closed_m": 1.13,
        "clearance_height_opened_m": null
    },
    "water_observation": {
        "value_m": 0.54,
        "value_cm": 54,
        "observed_at": "2026-08-28T05:30:00+00:00",
        "process_type": "meting",
        "quality_code": "00",
        "retrieved_at": "2026-08-28T06:10:29.877405+00:00",
        "station_code": "delfzijl.oudeeemskanaal.spuisluis",
        "reference_level": "NAP"
    }
}

Geometry GeoJSON

{
    "type": "Point",
    "coordinates": [
        6.861882271,
        53.320131612
    ]
}

Raw FIS JSON

{
    "id": 10,
    "type": "Feature",
    "geometry": {
        "type": "Point",
        "coordinates": [
            6.86188227100007,
            53.32013161200007
        ]
    },
    "properties": {
        "id": 1607,
        "name": "Doorvaartopening (beweegbaar) Oosterophaalbrug",
        "note": null,
        "type": "OPH",
        "width": 8.88,
        "isrsid": 9055218,
        "number": 1,
        "geotype": "opening",
        "routeid": 12458,
        "vincode": "3665",
        "objectid": 10,
        "parentid": 30013,
        "condition": "CONSTRUCTED",
        "fairwayid": 57628,
        "silldepth": null,
        "routekmend": 19.779,
        "foreigncode": null,
        "orientation": null,
        "widthconvoy": 8.88,
        "heightclosed": -0.2,
        "heightopened": null,
        "routekmbegin": 19.779,
        "geogeneration": 4136,
        "parentgeotype": "bridge",
        "fairwaysectionid": 9131,
        "passagedurationm": 0,
        "clearanceheightclosed": 1.13,
        "clearanceheightopened": null
    }
}