The limit of SPILLWAY is the extent of the structure over which water flows.
If SPILLWAY is constructed of masonry and is ≥ 0.02" along the shortest axis,
Source Interpretation Guidelines
If SPILLWAY is captured,
Then also capture NONEARTHEN SHORE along the edge of any adjacent
Tunnel or closed-conduit spillways, including glory-holes and risers, are not
captured as SPILLWAY. See WATER INTAKE/OUTFLOW or PIPELINE.
Do not capture overflow spillways as SPILLWAY. See DAM/WEIR.
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