Property talk:P2793

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clearance
distance between surface under bridge and bottom of a bridge deck

Represents	air draft (Q2446632), clearance (Q1823312)
Data type	Quantity
Domain	bridge (Q12280) or canal tunnel (Q5031071)
Allowed values	1E−7 ≤ 𝓧 ≤ 10,000,000
Allowed units	metre (Q11573), foot (Q3710) or inch (Q218593)
Example	Second Severn Crossing (Q1287969) → 37 metre Millau Viaduct (Q99236) → 270 metre
Tracking: usage	Category:Pages using Wikidata property P2793 (Q28648924)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Chart by item creation date Minimum and maximum Items with highest numeric value Items with lowest numeric value Database reports/Constraint violations/P2793 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 434 Main statement 432 99.5% of uses Qualifier 2 0.5% of uses

[create Create a translatable help page (preferably in English) for this property to be included here]

Type “bridge (Q12280), canal tunnel (Q5031071)”: item must contain property “instance of (P31)” with classes “bridge (Q12280), canal tunnel (Q5031071)” or their subclasses (defined using subclass of (P279)). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P2793#Type Q12280, Q5031071, SPARQL

Units: “metre (Q11573), foot (Q3710), inch (Q218593)”: value unit must be one of listed. (Help)

List of violations of this constraint: Database reports/Constraint violations/P2793#Units, hourly updated report

Scope is as main value (Q54828448): the property must be used by specified way only (Help)

List of violations of this constraint: Database reports/Constraint violations/P2793#Scope, hourly updated report, SPARQL

Range from “1e-07” to “10000000”: values should be in the range from “1e-07” to “10000000”. (Help)

List of violations of this constraint: Database reports/Constraint violations/P2793#Range, hourly updated report

Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P2793#Entity types

This property is being used by: eu:Txantiloi:Eraikin infotaula automatikoa, eu:Txantiloi:Eraikin infotaula uk:Шаблон:Міст es:Plantilla:Ficha de barco, es:Plantilla:Ficha de puente2, es:Plantilla:Ficha de puente Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)