Lock Chamber Template

 

Delineation

The limit of LOCK CHAMBER is the GATE and WALL that enclose the portion of a

waterway to be raised or lowered.

 

If LOCK CHAMBER is on a 1-dimensional STREAM/RIVER or CANAL/DITCH and

LOCK CHAMBER has been symbolized on existing graphic with only one wing tick,

and the graphic product is the only source used, Then LOCK CHAMBER is

represented as a 0-dimensional basic feature object.

 

If LOCK CHAMBER is on a 1-dimensional STREAM/RIVER or CANAL/DITCH and

does not meet the conditions for a 0-dimensional LOCK CHAMBER,

Then LOCK CHAMBER is represented as a 1-dimensional basic feature object.

 

If LOCK CHAMBER is on a 2-dimensional STREAM/RIVER or CANAL/DITCH,

Then LOCK CHAMBER is represented as a 2-dimensional basic feature object.

 

Data Extraction

Capture Conditions

 

Capture all.

 

Source Interpretation Guidelines

 

All

 

If LOCK CHAMBER and DAM/WEIR share a name, as in "Lock and Dam

#6," Then only collect the name with DAM/WEIR.

 

If a 1-dimensional or 2-dimensional LOCK CHAMBER is captured,

Then also capture STREAM/RIVER or CANAL/DITCH.

 

If a 2-dimensional LOCK CHAMBER and STREAM/RIVER are captured,

Then also capture SHORELINE, NONEARTHEN SHORE, or WALL along

the sidewalls of the chamber.

 

If a 1-dimensional or 2-dimensional LOCK CHAMBER is captured,

Then also capture GATE at each end of the LOCK CHAMBER.

 

Graphic

 

If LOCK CHAMBER has been symbolized by a single V-shaped symbol,

Then capture LOCK CHAMBER at the apex of the V-shaped symbol.

 

If LOCK CHAMBER has been symbolized by a pair of V-shaped symbols

and is on a single-line STREAM/RIVER or CANAL/DITCH,

 

Then capture LOCK CHAMBER as a line connecting the apexes of the V-

shaped symbols.   If LOCK CHAMBER has been symbolized by a pair of V-

shaped symbols and is on a double-line STREAM/RIVER or CANAL/DITCH,

Then capture LOCK CHAMBER as the water area between the V-shaped

symbols. The ends of the chamber should be collected as straight lines

passing through the apex of the V-shaped symbols.

 

Revision - General

 

Revision – Standard

 

Revision - Limited

 

Revise only if LOCK CHAMBER is on a 2-dimensional CANAL/DITCH or

STREAM/RIVER. Retain existing features.

 

About Feature Templates