New Jersey Department of Environmental Protection, Bureau of Geographic Information Systems hydro (stream) centerline data were used as a primary data source. These data were derived from NJ Office of Information Technology, Office of GIS (NJOGIS) 2002 orthophotography (+/-4 feet). Hydro centerlines were integrated where known to be coincident with municipal boundaries as shown on municipal tax maps.
New Jersey Department of Transportation road centerlines data were used as a primary data source. These data were derived from NJ Office of Information Technology, Office of GIS (NJOGIS) 2002 orthophotography (+/-4 feet). Road centerlines were integrated where known to be coincident with municipal boundaries as shown on municipal tax maps.
New Jersey Department of Environmental Protection, Green Acres Program open space boundary data were used as a primary data source. These data were derived from Green Acres open space property surveys. Survey boundaries were integrated where known to be coincident with municipal boundaries as shown on municipal tax maps.
New Jersey Department of Agriculture, State Agricultural Development Committee, Farmland Preservation Program preserved farmland boundary data were used as a primary data source. These data were derived from Farmland Preservation preserved farmland property surveys. Survey and non-survey (some municipal boundary lines were not mapped as survey lines) boundaries were integrated where known to be coincident with municipal boundaries as shown on municipal tax maps.
New Jersey Department of Environmental Protection, Bureau of Geographic Information Systems land use/landcover data were used as a primary data source. These data were derived from NJ Office of Information Technology, Office of GIS (NJOGIS) 2002 orthophotography (+/-4 feet). Land use/landcover delineations were used to represent municipal boundaries coincident with shorelines.
New Jersey Department of Environmental Protection, New Jersey Geological Survey boundary data for the northern border of New Jersey and through Shooters Island, off the shoreline of Bayonne, were used as primary data sources. Survey points were used to delineate the New Jersey/New York boundary for the northern border of the state. Turning points through the Kill Van Kull were used to delineate the New Jersey/New York boundary through Shooters Island.
Delaware Geological Survey boundary data for segments of the New Jersey/Delaware border were used as a primary data source. Boundary, boundary monument, and boundary reference monument positions were calculated at the 1934 mean low water line along the New Jersey shoreline from descriptions in a 1934/1935 United States Supreme Court Decree. These data were used to represent municipal boundaries coincident with shorelines as shown on municipal tax maps.
New Jersey Department of Environmental Protection, Bureau of Geographic Information Systems data representing the New Jersey/New York boundary for Ellis Island were used as a primary data source. These data were delineated from an 1857 United States Coast Survey Map.
State-certified digital tax map data were used as a primary data source. State-certified digital tax map data is presumed to have a higher level of accuracy than digital parcel data. These data were used to delineate municipal boundaries where they could not be derived from other primary data sources.
Digital parcel data were used to delineate municipal boundaries where they could not be derived from primary data sources.
Data delineated to connect shorelines across the outlet of a river to a bay or the ocean, or across the outlet of a bay to the ocean were developed for the project. These data were interpreted from NJ Office of Information Technology, Office of GIS (NJOGIS) 2002 orthophotography (+/-4 feet). Outlet delineations were integrated where known to be coincident with municipal boundaries as shown on municipal tax maps.
Data delineated to represent the centerline of the Delaware River were developed for the project. An inventory of Delaware River islands with state jurisdiction was developed from information in "The Story Of New Jersey's Civil Boundaries 1606 - 1968" by John F. Snyder, Bureau of Geology and Topography, Trenton, New Jersey, 1969. Using this information, a delineation was generated to represent the centerline of the Delaware River from the New Jersey/New York border to the 12 mile circle at the New Jersey/Delaware border. The delineation of the centerline of the Delaware River was generated by manually digitizing the river's visible shorelines, interpreted from NJ Office of Information Technology, Office of GIS (NJOGIS) 2002 orthophotography (+/-4 feet). A centerline was generated from the shorelines utilizing the DUAL COLLAPSE command in ArcGIS ArcInfo 9.2. Using the automated centerline as a guide, the final delineation was manually digitized to provide a smoother, more visually suitable centerline. The centerline of the Delaware River represents the boundary between New Jersey and Pennsylvania. These data were used to represent municipal boundaries coincident with the river centerline as shown on municipal tax maps.
Data adjusted from original New Jersey Department of Transportation road centerlines, or delineated from railroad lines or other photo-identifiable features, interpreted from NJ Office of Information Technology, Office of GIS (NJOGIS) 2002 orthophotography (+/-4 feet) were developed for the project. These data were integrated where known to be coincident with municipal boundaries as shown on municipal tax maps.
New Jersey Department of Environmental Protection, Bureau of Geographic Information Systems municipality boundaries (stmun) data digitized from various United States Geological Survey topographic maps were integrated where there was a lack of available or adequate alternative source information and data.
A QAQC process was undertaken with County GIS Coordinators to review the draft data and report linework needing modification. All counties, except for Middlesex, participated in this process. Modifications were made in several of the counties.
A null value polygon sliver measuring approximately 0.5 square feet was removed from Burlington County. It is assumed this data artifact developed during processing the municipalities data set, from which this data set was derived. Four null value polygon slivers measuring approximately 5 square feet were removed from Ocean County. It is assumed these data artifacts developed during use of the DISSOLVE command when converting the municipalities data set into counties. The data set was visually checked for possible additional slivers and none were found.
As a component of the NJ Office of Information Technology, Office of GIS (NJOGIS) Parcels Normalization Project in 2008-2010, parcels boundaries were modified to match municipal, county and state boundaries data developed by NJOGIS in 2008 where those boundaries were coincident. During this process, modifications were made to the municipal, county and state boundaries data sets to improve spatial and temporal accuracy where research was necessary to resolve boundary conflicts, and in areas where higher quality data became available subsequent to the 2008 boundaries data release.
Attributes were added to the attribute table. The ACRES and SQ_MILES fields were recalculated based on SHAPE_AREA. In addition, POPDEN2000, POPDEN1990, and POPDEN1980 were recalculated based on the updated number of square miles in the SQ_MILES field. Attributes for Geographical Naming Information System (GNIS) codes and names were thoroughly reviewed in collaboration with GNIS-US Geological Survey and US Census Bureau representatives. No formal accuracy testing was performed to qualify or validate attribute data. All other attribute information was carried over from the most current NJDEP county boundaries (stco) data set and is assumed correct.
Supported by tax map documentation, a modification was made to the municipal and county boundary along the east shoreline of Osborne Pond between Bernards Township in Somerset County and Harding Township in Morris County. The modification was made by the NJ Office of Information Technology, Office of GIS (NJOGIS) in consultation with both municipalities and counties. It was reported by the US Census Bureau to NJOGIS in July 2010 that the delineation in the statewide municipal boundaries dataset was inconsistent with the municipal boundary submitted by Harding Township as part of the the Local Update of Census Addresses (LUCA) program. It was subsequently determined that the cause for the incorrect statewide municipal boundaries delineation was an incorrect delineation of a parcel (Harding Township, Block 48.01 Lot 8) in the statewide composite of parcels data (for which the parcels data were used as source data for the municipal boundaries). The west boundary of the parcel is a segment of the municipal boundary along the east shoreline of Osborne Pond. The change to Block 48.01 Lot 8 necessitated a modification to four contiguous parcels (Harding Township, Block 48.01, Lots 4, 5, 7 and Block 52, Lot 2) in Harding Township along the east shoreline of Osborne Pond. Since the west boundaries of Block 48.01, Lots 4, 5, 7 and Block 52, Lot 2 are also segments of the municipal boundary, the municipal boundary was modified to match the change to the parcels. Two Bernards Township parcels (Block 804, Lot 17 and Block 1701, Lot 1) in the statewide composite of parcels data were also modified to be consistent with the change to the municipal boundary and Harding Township parcels.
An update to parcel boundaries in Marlboro Township in Monmouth County necessitated a change to the municipal boundary and the Monmouth/Middlesex County boundary. The change also affected the boundaries of the adjacent municipalities of Aberdeen and Manalapan Townships in Monmouth County, and Old Bridge Township in Middlesex County. The change was up to approximately 20 feet for Marlboro, Manalapan and Old Bridge Townships, and up to approximately 0.25 feet for Aberdeen Township.
An update was made to the Woodbridge Township municipal boundary which necessitated a change to the Middlesex County boundary. The municipal and county boundary along the Arthur Kill was represented to extend out to the middle of the river to coincide with the state boundary. However, the municipal and county boundary was changed to coincide with the shoreline, based on a preponderance of supporting information. The Woodbridge Township boundary is described as the shoreline in The Story of New Jersey's Civil Boundaries 1606 - 1968. Tax maps indicate that riparian grants were conveyed to a Pierhead Line extending out to the middle of the Arthur Kill, which approximates the state boundary and is likely the source of any ambiguity regarding the municipal and county boundary. In addition, boundaries for all other municipalities in New Jersey along the Arthur Kill coincide with the shoreline.
Counties were aggregated from the NJOGIS Municipalities of New Jersey (nj_munis) data set using the DISSOLVE command in ArcGIS ArcInfo 9.3. The COUNTY attribute field was input as the Dissolve_field. Attribute fields from the previous version of nj_counties were added back to the attribute table.
Due to county boundary changes, ACRES and SQ_MILES fields were recalculated based on SHAPE_AREA. POPDEN2000, POPDEN1990, and POPDEN1980 were recalculated based on the updated square mile values.
2010 population (POP2010) and population density (POPDEN2010) were added to the attribute table. Population totals are from the 2010 US Census. Population density totals were calculated using square mileage (SQ_MILES) totals from the attribute table.
An improvement was made to the municipal/county boundary between Pittsgrove Township in Salem County and Vineland in Cumberland County. Segments sourced from parcel boundaries were replaced by an NJDEP hydro centerline segment and a 2007 NJOIT orthophoto delineated segment of a photo-identifiable water feature. The affected municipal/county boundary segments are coincident with the eastern boundaries of block 2502, lots 5.01, 7.01 and 17 in Pittsgrove Township, Salem County, and the western boundaries of block 2601, lots 14-18, and block 2608, lot 1 in Vineland, Cumberland County.
A correction was made to the municipal/county boundary between Clifton in Passaic County and Garfield Borough in Bergen County coincident with the centerline of the Passaic River, just south of the Garden State Parkway. A boundary segment sourced from an NJDEP hydro centerline that did not represent the middle of the river was replaced by a segment through the middle of the river delineated from 2007 NJOIT orthophotos.
Attribute values were re-calculated for area (ACREAGE and SQ_MILES) and 2010 population density (POPDEN2010).
Spatial corrections were made to the Camden_Burlington county boundary at Voorhees, Berlin, and Evesham townships.
Corrections were made to county boundaries based on municipal tax maps. These corrections restored the county boundary to its original location (former stream) prior to artificial stream re-locations for flood control and highway projects. The affected municipalities/counties are Millburn Township (Essex)/Chatham Borough (Morris), Green Brook Township (Somerset)/Dunellen Borough (Middlesex), and Green Brook Township (Somerset)/Middlesex Borough (Middlesex)
Adjustments were made to county boundaries as part of the Essex County parcel edge matching project. Adjustments were based on Essex County parcels (submitted to NJOGIS in January, 2015), municiapl tax maps, and deed information from various parcels along boundary. The affected municipalities are North Caldwell Borough, Cedar Grove Township, Montclair Township, Bloomfield Township, and Nutley Township (all in Essex County), Little Falls Township and Clifton (both in Passaic County).
Adjustments were made to county boundaries as part of the Essex County parcel edge matching project. Adjustments were based on Essex County parcels (submitted to NJOGIS in January, 2015), municiapl tax maps, and deed information from various parcels along boundary. The affected municipalities are Millburn Township, Maplewood Township, Irvington Township, City of Newark, City of Summit, Springfield Township, Union Township, Hillside Township, and City of Elizabeth.
State of NJ polygon was added to the topology feature class for boundaries. Validation was run and there were no errors between the coincident state and county boundaries.
Working in conjunction with the New York State Information Technology services (NYITS), the New Jersey Office of GIS (NJOGIS), extended the NY/NJ northern boundary line further into the Delaware River, near Port Jervis, NY, to line up with the previously agreed to line between Pennsylvania and New York State. For the rest of the NY/NJ boundary line, New York State adopted the boundary as represented by New Jersey. County boundaries were adjusted to conform to state boundary.
The New Jersey Office of GIS (NJOGIS) worked in conjunction with the Pennsylvania Department of Transportation (PennDOT) to create a coincident boundary between NJ/PA in the Delaware River. After examining both boundaries, both parties agreed to a process of generating a new boundary line. Using the most recent NJ Department of Environmental Protection's (NJDEP) Delaware River Shorelines feature class, cross-section lines, and the island inventory from the 18th century bi-state commission's annexation reports, NJOGIS generated a new boundary between NJ/PA. This new line was reviewed PennDOT, and any disagreements were approved by both states. County boundaries were adjusted to conform to state boundary.
The municipal boundary between Vernon Township and Hardyston Township in Sussex County and West Milford Township in Passaic County was updated based on a new digital tax map that was created for Vernon Township. The updated boundary between Vernon and West Milford also resolved a conflict between the older Vernon tax map and existing West Milford tax map. These municipal boundary changes resulted in a location adjustment between the Passaic County and Sussex County boundary.
2020 population (POP2020) and population density (POPDEN2020) were added to the attribute table. Population totals are from the 2020 US Census. Population density totals were calculated using square mileage (SQ_MILES) values from the attribute table. Due to multiple boundary changes, both the ACRES and SQ_MILES field values were recalculated based on SHAPE_AREA. Subsequently, all population density fields were recalculated based on the updated SQ_MILES value.