Doorvaartopening (vast) A.G. de Vrijebrug

Opening #4059 · route 30986024

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Latest Clearance

pending needs_reference_level_validation

Water station: gouda.hollandscheijssel Gouda Hollandsche IJssel
Water observed: 2026-10-12 20:50:00
Water level: -0.410 m
Calculated: 2026-10-12 21:17:01
Formula: pending_reference_level_interpretation

FIS Opening Fields

Source id: fis.opening:4059
Parent id: 1021876 (bridge)
Reference level: n/a
Height closed: 0.090 m
Clearance height closed: 0.700 m
Height opened: n/a
Width: 4.000 m
Sill depth: n/a
Route km: 0.507 - 0.507

Parent Bridge

Name: A.G. de Vrijebrug
Local id: 2526
RWS id: 1021876
Source id: fis.bridge:2526
Reference level: UNSPECIFIED
MHW reference: CANAL
MHW offset: n/a
Can open: no

Linked Water Stations

Station	Method	Distance	Confidence	Latest Observation	Level
`gouda.hollandscheijssel` Gouda Hollandsche IJssel	nearest_spatial	884 m	0.91	2026-10-12 20:50:00	-0.410 m

Recent Clearance History

Calculated	Water Observed	Water Level	Clearance	Status	Formula
2026-10-12 21:17:01	2026-10-12 20:50:00	-0.410 m	pending	needs_reference_level_validation	`pending_reference_level_interpretation`
2026-10-12 20:16:51	2026-10-12 19:50:00	-0.050 m	pending	needs_reference_level_validation	`pending_reference_level_interpretation`
2026-10-12 19:16:40	2026-10-12 19:00:00	0.250 m	pending	needs_reference_level_validation	`pending_reference_level_interpretation`
2026-10-12 18:16:30	2026-10-12 18:00:00	0.670 m	pending	needs_reference_level_validation	`pending_reference_level_interpretation`
2026-10-12 17:16:19	2026-10-12 17:00:00	1.350 m	pending	needs_reference_level_validation	`pending_reference_level_interpretation`
2026-10-12 16:16:09	2026-10-12 15:50:00	1.100 m	pending	needs_reference_level_validation	`pending_reference_level_interpretation`
2026-10-12 15:15:59	2026-10-12 14:50:00	0.220 m	pending	needs_reference_level_validation	`pending_reference_level_interpretation`
2026-10-12 14:15:48	2026-10-12 14:00:00	-0.080 m	pending	needs_reference_level_validation	`pending_reference_level_interpretation`
2026-10-12 13:15:39	2026-10-12 12:50:00	-0.290 m	pending	needs_reference_level_validation	`pending_reference_level_interpretation`
2026-10-12 12:15:28	2026-10-12 11:50:00	-0.100 m	pending	needs_reference_level_validation	`pending_reference_level_interpretation`
2026-10-12 11:15:17	2026-10-12 10:50:00	0.120 m	pending	needs_reference_level_validation	`pending_reference_level_interpretation`
2026-10-12 10:15:07	2026-10-12 09:50:00	-0.210 m	pending	needs_reference_level_validation	`pending_reference_level_interpretation`
2026-10-12 09:14:57	2026-10-12 08:50:00	-0.210 m	pending	needs_reference_level_validation	`pending_reference_level_interpretation`
2026-10-12 08:14:46	2026-10-12 07:50:00	0.110 m	pending	needs_reference_level_validation	`pending_reference_level_interpretation`
2026-10-12 07:14:35	2026-10-12 07:00:00	0.440 m	pending	needs_reference_level_validation	`pending_reference_level_interpretation`
2026-10-12 06:14:22	2026-10-12 05:50:00	0.770 m	pending	needs_reference_level_validation	`pending_reference_level_interpretation`
2026-10-12 05:14:11	2026-10-12 04:50:00	1.390 m	pending	needs_reference_level_validation	`pending_reference_level_interpretation`
2026-10-12 04:13:57	2026-10-12 03:50:00	1.490 m	pending	needs_reference_level_validation	`pending_reference_level_interpretation`
2026-10-12 03:13:47	2026-10-12 02:50:00	0.500 m	pending	needs_reference_level_validation	`pending_reference_level_interpretation`
2026-10-12 02:13:36	2026-10-12 02:00:00	-0.020 m	pending	needs_reference_level_validation	`pending_reference_level_interpretation`

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": "UNSPECIFIED"
    },
    "station_link": {
        "active": true,
        "method": "nearest_spatial",
        "confidence": 0.9116,
        "distance_m": 883.96,
        "reviewed_at": null
    },
    "parent_bridge": {
        "id": 2526,
        "name": "A.G. de Vrijebrug",
        "rws_id": "1021876",
        "can_open": false,
        "source_id": "fis.bridge:2526",
        "mhw_offset": null,
        "reference_level": "UNSPECIFIED",
        "mhw_reference_level": null
    },
    "bridge_opening": {
        "id": 4059,
        "name": "Doorvaartopening (vast) A.G. de Vrijebrug",
        "route_id": "30986024",
        "source_id": "fis.opening:4059",
        "fairway_id": "30985730",
        "route_km_end": 0.507,
        "route_km_begin": 0.507,
        "height_closed_m": 0.09,
        "height_opened_m": null,
        "reference_level": null,
        "fairway_section_id": "30984355",
        "clearance_height_closed_m": 0.7,
        "clearance_height_opened_m": null
    },
    "water_observation": {
        "value_m": -0.41,
        "value_cm": -41,
        "observed_at": "2026-10-12T20:50:00+00:00",
        "process_type": "meting",
        "quality_code": "00",
        "retrieved_at": "2026-10-12T21:16:53.945243+00:00",
        "station_code": "gouda.hollandscheijssel",
        "reference_level": "NAP"
    }
}

Geometry GeoJSON

{
    "type": "Point",
    "coordinates": [
        4.721361604,
        52.014459587
    ]
}

Raw FIS JSON

{
    "id": 4059,
    "type": "Feature",
    "geometry": {
        "type": "Point",
        "coordinates": [
            4.7213616040000375,
            52.01445958700003
        ]
    },
    "properties": {
        "id": 59953115,
        "name": "Doorvaartopening (vast) A.G. de Vrijebrug",
        "note": "De maximale maten van de konvooien zijn: H 1,80 m B 2,95 m D 1:10 m\r\nDit heeft te maken met de afmetingen van de sluis en diverse vaste bruggen die op deze route liggen.",
        "type": "OPH",
        "width": 4,
        "isrsid": 59953124,
        "number": 1,
        "geotype": "opening",
        "routeid": 30986024,
        "vincode": "65149058",
        "objectid": 4059,
        "parentid": 1021876,
        "condition": "CONSTRUCTED",
        "fairwayid": 30985730,
        "silldepth": null,
        "routekmend": 0.506506,
        "foreigncode": null,
        "orientation": null,
        "widthconvoy": 4,
        "heightclosed": 0.09000000000000001,
        "heightopened": null,
        "routekmbegin": 0.507,
        "geogeneration": 3822,
        "parentgeotype": "bridge",
        "fairwaysectionid": 30984355,
        "passagedurationm": 0,
        "clearanceheightclosed": 0.7000000000000001,
        "clearanceheightopened": null
    }
}