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Overview
The Aqueducts layer contains 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.
Production
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 fields:
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 this layer. No updates are planned.