Name: Tier II Stream Segments 2021
Display Field: T2_SGMT_ID
Type: Feature Layer
Geometry Type: esriGeometryPolyline
Description: This dataset consists of a digital geospatial representation of all identified Tier II segments in the State of Maryland. Based on data collected between 1995-2019, this dataset currently contains information for 263 designated Tier II stream segments. Main segment breakpoints were determined using the 100,000:1 National Hydrography Dataset (NHD). The final designated Tier II segments are the merged sub segments that make up the 24,000:1 NHD meeting the 100,000:1 breakpoints. Tier II stream segments generally terminate at confluences, impoundment outfalls, and tidal boundaries.
Definition Expression: N/A
Copyright Text: Creator: Maryland Department of the Environment, Water Science Administration (MDE WSA)
Assessment Data: Maryland Department of Natural Resources, Monitoring and Non-tidal Assessment Division, Maryland Biological Stream Survey Program (DNR MBSS), MDE WSA, Baltimore County Department of Environmental Protection and Sustainability, Frederick County Department of Sustainability and Environmental Resources, Wetland Studies and Solutions, McCormick Taylor Inc., and various non-government certified entities.
Other Geospatial Data: USGS
Default Visibility: true
MaxRecordCount: 1000
Supported Query Formats: JSON, AMF, geoJSON
Min Scale: 0
Max Scale: 0
Supports Advanced Queries: true
Supports Statistics: true
Has Labels: false
Can Modify Layer: true
Can Scale Symbols: false
Use Standardized Queries: true
Extent:
XMin: -8847078.4284
YMin: 4583207.891800001
XMax: -8388472.7708
YMax: 4826657.942699999
Spatial Reference: 102100
(3857)
Drawing Info:
Renderer:
Simple Renderer:
Symbol:
Style: esriSLSSolid
Color: [0, 112, 255, 255]
Width: 2
Label:
Description:
Transparency: 0
Labeling Info:
Advanced Query Capabilities:
Supports Statistics: true
Supports OrderBy: true
Supports Distinct: true
Supports Pagination: true
Supports TrueCurve: true
HasZ: true
HasM: true
Has Attachments: false
HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText
Type ID Field: null
Fields:
-
OBJECTID_1
(
type: esriFieldTypeOID
, alias: GIS Object ID
)
-
T2_SGMT_ID
(
type: esriFieldTypeString
, alias: Tier II Segment Name
, length: 50
)
-
DESDATE
(
type: esriFieldTypeString
, alias: Tier II Stream Designation Date
, length: 4
)
-
AC_yes_no
(
type: esriFieldTypeString
, alias: Assimilative Capacity Remaining?
, length: 5
)
-
COUNTY
(
type: esriFieldTypeString
, alias: County
, length: 15
)
-
BIBI_Base
(
type: esriFieldTypeDouble
, alias: Baseline Benthic-IBI
)
-
FIBI_Base
(
type: esriFieldTypeDouble
, alias: Baseline Fish-IBI
)
-
REACHCODE
(
type: esriFieldTypeString
, alias: Reach Code
, length: 50
)
-
MD_12DIGIT
(
type: esriFieldTypeString
, alias: 12-digit watershed (MD)
, length: 50
)
-
FED_12_HUC
(
type: esriFieldTypeString
, alias: Hydrologic Unit Code (HUC 12)
, length: 50
)
-
LENGTHKM
(
type: esriFieldTypeDouble
, alias: Length (km)
)
-
LENGTHMILE
(
type: esriFieldTypeDouble
, alias: Length (mile)
)
-
SUB_LAYER
(
type: esriFieldTypeInteger
, alias: SUB_LAYER
)
-
Shape
(
type: esriFieldTypeGeometry
, alias: GIS Shape
)
-
Shape.len
(
type: esriFieldTypeDouble
, alias: Shape.len
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Supported Operations:
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