Aqueducts - July 1998
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OVERVIEW
METHODOLOGY
The Aqueducts layer comtains linework representing water-transporting conduits from 1:100,000 U.S. Geological Survey Digital Line Graph (DLG) files, with additional linework added by the Massachusetts Water Resources Authority. In ArcSDE the layer is named AQUEDUCTS_ARC. Annotation for MWRA aqueducts is stored as AQUEDUCTS_ANNO_DESC.
USGS DLG files were converted to ArcInfo coverage format. MWRA staff digitized additional aqueduct linework and created annotation.ATTRIBUTES
This datalayer's arc attribute table has the following attributes:
PIPE TRANSMISSION = MWRA PIPE
X = Non-MWRA pipe
TYPE
G = Above-ground pipe
P = Below-ground pipe
X = Non-MWRA pipe
NAME
Name of pipe
MAINTENANCE
MassGIS maintains lthis layer.
Last Updated 7/22/2004
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