Doorvaartopening (vast) Ankerbrug

Opening #3079 · route 12458

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Latest Clearance

pending needs_reference_level_validation

Water station: slochtersluis.boven Slochtersluis
Water observed: 2026-08-28 06:00:00
Water level: 0.480 m
Calculated: 2026-08-28 07:23:13
Formula: pending_reference_level_interpretation

FIS Opening Fields

Source id: fis.opening:3079
Parent id: 55867 (bridge)
Reference level: n/a
Height closed: 1.140 m
Clearance height closed: 2.400 m
Height opened: n/a
Width: 6.500 m
Sill depth: n/a
Route km: 7.100 - 7.115

Parent Bridge

Name: Ankerbrug
Local id: 2367
RWS id: 55867
Source id: fis.bridge:2367
Reference level: KP
MHW reference: CANAL
MHW offset: n/a
Can open: no

Linked Water Stations

Station	Method	Distance	Confidence	Latest Observation	Level
`slochtersluis.boven` Slochtersluis	nearest_spatial	6,788 m	0.32	2026-08-28 06:00:00	0.480 m

Recent Clearance History

Calculated	Water Observed	Water Level	Clearance	Status	Formula
2026-08-28 07:23:13	2026-08-28 06:00:00	0.480 m	pending	needs_reference_level_validation	`pending_reference_level_interpretation`
2026-08-28 07:18:17	2026-08-28 06:00:00	0.480 m	pending	needs_reference_level_validation	`pending_reference_level_interpretation`
2026-08-28 07:10:51	2026-08-28 06:00:00	0.480 m	0.660 m	ok	`kp_clearance_height_adjusted_by_current_nap_water_level`
2026-08-28 06:10:39	2026-08-28 04:40:00	0.470 m	0.670 m	ok	`kp_clearance_height_adjusted_by_current_nap_water_level`
2026-08-28 05:10:28	2026-08-28 04:00:00	0.520 m	0.620 m	ok	`kp_clearance_height_adjusted_by_current_nap_water_level`
2026-08-28 04:10:15	2026-08-28 02:00:00	0.520 m	0.620 m	ok	`kp_clearance_height_adjusted_by_current_nap_water_level`
2026-08-28 03:10:04	2026-08-28 01:00:00	0.500 m	0.640 m	ok	`kp_clearance_height_adjusted_by_current_nap_water_level`
2026-08-28 02:09:52	2026-08-28 01:00:00	0.500 m	0.640 m	ok	`kp_clearance_height_adjusted_by_current_nap_water_level`
2026-08-28 01:09:40	2026-08-28 00:00:00	0.500 m	0.640 m	ok	`kp_clearance_height_adjusted_by_current_nap_water_level`
2026-08-28 00:09:28	2026-08-27 23:00:00	0.500 m	0.640 m	ok	`kp_clearance_height_adjusted_by_current_nap_water_level`
2026-08-27 23:09:16	2026-08-27 22:00:00	0.520 m	0.620 m	ok	`kp_clearance_height_adjusted_by_current_nap_water_level`
2026-08-27 22:09:04	2026-08-27 20:00:00	0.520 m	0.620 m	ok	`kp_clearance_height_adjusted_by_current_nap_water_level`
2026-08-27 21:08:52	2026-08-27 19:00:00	0.490 m	0.650 m	ok	`kp_clearance_height_adjusted_by_current_nap_water_level`
2026-08-27 20:08:39	2026-08-27 18:00:00	0.460 m	0.680 m	ok	`kp_clearance_height_adjusted_by_current_nap_water_level`
2026-08-27 19:08:26	2026-08-27 17:00:00	0.470 m	0.670 m	ok	`kp_clearance_height_adjusted_by_current_nap_water_level`
2026-08-27 18:08:11	2026-08-27 16:00:00	0.510 m	0.630 m	ok	`kp_clearance_height_adjusted_by_current_nap_water_level`
2026-08-27 17:07:49	2026-08-27 16:00:00	0.510 m	0.630 m	ok	`kp_clearance_height_adjusted_by_current_nap_water_level`
2026-08-27 16:07:30	2026-08-27 14:00:00	0.520 m	0.620 m	ok	`kp_clearance_height_adjusted_by_current_nap_water_level`
2026-08-27 15:07:18	2026-08-27 13:00:00	0.510 m	0.630 m	ok	`kp_clearance_height_adjusted_by_current_nap_water_level`
2026-08-27 14:07:06	2026-08-27 12:00:00	0.510 m	0.630 m	ok	`kp_clearance_height_adjusted_by_current_nap_water_level`

Calculation Basis

{
    "formula": {
        "kind": "pending_reference_level_interpretation",
        "expression": "not_computed_until_reference_level_rule_is_validated",
        "water_source": "water_level_observation.value_m",
        "height_source": "fis_bridge_opening.clearance_height_closed_m",
        "reference_level_source": "fis_bridge.reference_level",
        "reference_level_decision": "parent bridge reference level is available but not interpreted as NAP",
        "effective_reference_level": "KP"
    },
    "station_link": {
        "active": true,
        "method": "nearest_spatial",
        "confidence": 0.3212,
        "distance_m": 6788.43,
        "reviewed_at": null
    },
    "parent_bridge": {
        "id": 2367,
        "name": "Ankerbrug",
        "rws_id": "55867",
        "can_open": false,
        "source_id": "fis.bridge:2367",
        "mhw_offset": null,
        "reference_level": "KP",
        "mhw_reference_level": null
    },
    "bridge_opening": {
        "id": 3079,
        "name": "Doorvaartopening (vast) Ankerbrug",
        "route_id": "12458",
        "source_id": "fis.opening:3079",
        "fairway_id": "57431",
        "route_km_end": 7.115,
        "route_km_begin": 7.1,
        "height_closed_m": 1.14,
        "height_opened_m": null,
        "reference_level": null,
        "fairway_section_id": "30984183",
        "clearance_height_closed_m": 2.4,
        "clearance_height_opened_m": null
    },
    "water_observation": {
        "value_m": 0.48,
        "value_cm": 48,
        "observed_at": "2026-08-28T06:00:00+00:00",
        "process_type": "meting",
        "quality_code": "00",
        "retrieved_at": "2026-08-28T07:23:08.823464+00:00",
        "station_code": "slochtersluis.boven",
        "reference_level": "NAP"
    }
}

Geometry GeoJSON

{
    "type": "Point",
    "coordinates": [
        6.713000536,
        53.284464284
    ]
}

Raw FIS JSON

{
    "id": 3079,
    "type": "Feature",
    "geometry": {
        "type": "Point",
        "coordinates": [
            6.713000536000038,
            53.28446428400008
        ]
    },
    "properties": {
        "id": 58628,
        "name": "Doorvaartopening (vast) Ankerbrug",
        "note": null,
        "type": "VST",
        "width": 6.5,
        "isrsid": 9055455,
        "number": 1,
        "geotype": "opening",
        "routeid": 12458,
        "vincode": "6444",
        "objectid": 3079,
        "parentid": 55867,
        "condition": "CONSTRUCTED",
        "fairwayid": 57431,
        "silldepth": null,
        "routekmend": 7.115,
        "foreigncode": null,
        "orientation": null,
        "widthconvoy": 6.5,
        "heightclosed": 1.1400000000000001,
        "heightopened": null,
        "routekmbegin": 7.1,
        "geogeneration": 4182,
        "parentgeotype": "bridge",
        "fairwaysectionid": 30984183,
        "passagedurationm": 0,
        "clearanceheightclosed": 2.4,
        "clearanceheightopened": null
    }
}