Tag:seamark:type=bridge
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 seamark:type = bridge
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Bridges with significance for navigation 
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| Group: Marine |
| Used on these elements |
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| Status: in use |
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Bridges
The tags defined on this page will render in various nautical charts (zoom-level 16 and higher).
An other example: Navigable Waterways, Europe (zoom-levels 1-13)
For routing purpose, the tag should be placed on the waterway beneath the bridge.
This page defines tags for the attributes of bridges.
| Type | S100 code | seamark:type | Definition |
|---|---|---|---|
| Bridge | BRIDGE | bridge | A structure erected over a body of water to provide a roadway for vehicles, pedestrians or to carry utility services. |
This page defines values for the "seamark:bridge:category=*" tags and other attributes applied to fog signals.
Categories
| Category (CATBRG) | seamark:bridge:category | Definition | Photo |
|---|---|---|---|
| Fixed bridge | fixed | A bridge having permanent horizontal and vertical alignment. | |
| Opening bridge | opening | A bridge that is closed when set for carrying road traffic and open when set to permit marine traffic to pass through the waterway it crosses. | |
| Swing bridge | swing | A movable bridge (or span thereof) which rotates in a horizontal plane about a vertical pivot to allow the passage of vessels. | 
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| Lifting bridge | lifting | A movable bridge (or span thereof) which is capable of being lifted vertically to allow vessels to pass beneath. | 
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| Bascule bridge | bascule | A counterpoise bridge rotated in a vertical plane about an axis at one or both ends. | 
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| Pontoon bridge | pontoon | A fixed floating bridge supported by pontoons. | |
| Drawbridge | drawbridge | A general name for bridges of which part or the entire span of the bridge may be raised or drawn aside to allow ships to pass through. | 
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| Transporter bridge | transporter | A bridge that has towers on each side of the waterway connected by a girder system on which a carriage runs. | 
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| Foot bridge | footbridge | A bridge structure used only for pedestrian traffic. | |
| Viaduct | viaduct | A long bridge consisting of a series of beams, spans or girders (of steel, timber or concrete) supported on towers or piers and used to carry a road, railroad, etc. | |
| Aqueduct | aqueduct | A bridge supporting an artificially elevated channel, for the conveyance of water. | |
| Suspension bridge | suspension | A fixed bridge consisting of either a roadway or a truss suspended from two or more cables which pass over towers and are anchored by backstays to a firm foundation. | 
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Clearances
| Attribute | seamark:bridge:<attribute> | Value type | Definition |
|---|---|---|---|
| Horizontal clearance (HORCLR) | clearance_width | Decimal | The width that is available for safe navigation. |
| Vertical clearance (VERCLR) | clearance_height | Decimal | The vertical clearance measured from the surface plane towards the object overhead. |
| Vertical clearance, closed (VERCCL) | clearance_height_closed | Decimal | The vertical clearance the bridge in closed condition measured from the surface plane towards the object overhead. |
| Vertical clearance, open (VERCOP) | clearance_height_open | Decimal | The vertical clearance of the bridge in opened condition measured from the surface plane towards the object overhead. |
See also
- bridge=* - bridges for normal mapping
- JOSM preset > seamark:type=bridge/gate
References
Seamark Tag Values
Seamark Objects
Seamark Attributes
INT-1 Cross Reference
