Networked Hydro Centerlines - July 1999
| Download the Centerlines layers ESRI shapefiles and SARIS lookup table (30 MB) |
Overview
AttributesThe Networked Hydro Centerlines layers were developed for use with the Watershed Analyst extension that was used in the now-discontinued ArcView GIS 3.x version of the MassGIS Data Viewer. The data were developed by watershed, divided into 32 tiles based on the SARIS (Streams and Rivers Information System) IDs of the Major Watersheds. Each tile name is a four-letter abbreviation of the basin name. The tiles are named as follows:
SARIS ID Major Basin Name Tile Name 
11 Hoosic HOOS 12 Kinderhook KIND 13 Bashbish BASH 21 Housatonic HOUS 31 Farmington FARM 32 Westfield WEST 33 Deerfield DEER 34 Connecticut CONN 35 Millers MILL 36 Chicopee CHIC 41 Quinebaug QUIN 42 French FREN 51 Blackstone BLAC 52 Ten Mile TENM 53 Narragansett Bay NARR 61 Mount Hope Bay HOPE 62 Taunton TAUN 71 Mystic MYST 72 Charles CHAR 73 Neponset NEPO 74 Weymouth & Weir WEYW 81 Nashua NASH 82 Concord CONC 83 Shawsheen SHAW 84 Merrimack MERR 91 Parker PARK 92 Ipswich IPSW 93 North Shore (N.Coastal) NCOA 94 South Shore (S. Coastal) SCOA 95 Buzzards Bay BUZZ 96 Cape Cod CAPE 97 Islands ISLA The networked centerline data, named HYDRONET_ARC, was developed for all watersheds except for Cape Cod and Islands.
A route layer, named HYDRONET_RTE_SARISRT, contains only lines with a named SARIS route. The linework is dissolved on the SARISNAME field and is availble for all land area within Massachusetts for all watersheds except Taunton, Buzzards Bay, Cape Cod, and Islands.
The centerline was created and routed using a set of ARC/INFO AMLs from the 1:25,000 Hydrography as featured on the USGS topographic quads.
MaintenanceThe HYDRONET_ARC layer contains the following attributes:
TILE_NAME
Name of SARIS major basin tile MINOR_TOT
Type of water feature;Concatenated Digital Line Graph (DLG) codes SOURCE
Data source for coverage (100K enhanced or 25K DLG) PWSID
DEP PWS ID number of downstream Public Surface Drinking Water Supply CLASS
Designated Use Classification (not yet implemented; Mass. Surface Water Quality Standards) ARC_CODE
Generalized arc code derived from MINOR_TOT HYA
Generalized arc code derived from MINOR_TOT RMIN
Minor_num of polygon to right of arc LMIN
Minor_num of polygon to left of arc RHYP
Generalized arc code to right of arc LHYP
Generalized arc code to left of arc CONNECTED
Arcs that are in the route system SARISNAME
Name of stream or river based on SARIS system ARCLINK
Links arc to its route in the section table T_MEAS
Meters from mouth of routed major basin based on All route SARISCODE
Stream code based on the SARIS (Stream and River Id System)
The HYDRONET_RTE_SARISRT attribute table contains the following:
SARISCODE
Stream code based on the SARIS (Stream and River Id System) LENGTH
Length of the route in meters SARISNAME
Name of stream or river based on SARIS system
These data datalayers are maintained by MassGIS. For information on data updates please contact Philip John by email at Philip.John@state.ma.us or by phone at (617) 619-5637.For the latest data available for use in the Watershed Analyst, please see the current Status Map.