Feature category: 4. Waters
Feature type:
(with ordinal number)		 4.08 LOCK (PLAVEBNÍ KOMORA)
Feature type code: bi030
Feature definition:

Water structure, usually of a rectangular floor plan with vertical walls, which is equipped with a door at both ends. It is used to pass vessels from one weir pool of the waterway to another.
Geometric determination of the feature: line - lock axis
Positional accuracy: mp = 1,5 m
Geometric data source: aerial survey photos, orthophoto, field recognition
Descriptive data source:
SPS, Geonames
A t t r i b u t e s :
Attribute name Data type Attribute subject Attribute values Code list
NAZEVTOKU VARCHAR2(60) name of the watercourse
SIRKA NUMBER(5,2) width of the lock
JMENO VARCHAR2(100) name transferred from Geonames
FID_ZBG VARCHAR2(40) unique feature identifier in ZABAGED®
S i z e   r e s t r i c t i o n s :
without restriction
E x a m p l e s :
Příklad
Feature illustration; photo: ZÚ archives
Příklad
Feature illustration; photo: ZÚ archives
F e a t u r e   h i s t o r y :
2024-01-01: SIRKA - attribute added to the feature
2016-04-01: JMENO - attribute data type changed (VARCHAR2(80) -> VARCHAR2(100))
Extended web version updated to: 17.03.2025
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