20200106
09553700
FALSE
20220815
09291300
20220815
09291300
1.0
FGDC CSDGM Metadata
HYDROLOGY_POLY_1
1337026.253129
1504418.000037
556750.999611
748703.833552
1
002
Projected
GCS_North_American_1983_HARN
Linear Unit: Foot_US (0.304801)
NAD_1983_HARN_StatePlane_Maryland_FIPS_1900_Feet
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150000000
5000
FGDC
ArcGIS Metadata
1.0
Baltimore County
Public Access Technician
410-887-2233
410-821-8024
400 Washington Ave
Towson
Maryland
21204
US
M - F 830 - 430
Feature Class
2016-05-01T00:00:00
Baltimore County Office of Information Technology, with assistance from Dewberry and Davis, of Fairfax, VA
HYDROLOGY_POLY_1
Hydrology Poly
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Feature class contains all hydrology polygons for Baltimore County.</SPAN></P></DIV></DIV></DIV>
The feature class accurately represents hydrology polygons within Baltimore County.
Baltimore County
Public Access Technician
410-887-2233
410-821-8024
400 Washington Ave
Towson
Maryland
21204
US
M - F 830 - 430
water features
hydro
hydrology
hydro
hydrology
2014
line
stream
pond
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN><SPAN>The user or recipient of this data understands and acknowledges this data may be inaccurate or contain errors or omissions and the user or recipient assumes full responsibility for any risks or damages resulting from, arising from or in connection with any use of or reliance upon data displayed herein. Baltimore County, Maryland does not warrant the accuracy or reliability of the data displayed herein. Baltimore County, Maryland disclaims all warranties with regard to data displayed herein, including but not limited to, all warranties, express or implied, of merchantability and fitness for any particular purpose. </SPAN></SPAN></P><P><SPAN><SPAN>Baltimore County, Maryland additionally disclaims all obligation and liability for damages, including but not limited to, actual, special, indirect, and consequential damages, attorneys’ and experts’ fees, and court costs incurred as a result of, arising from or in connection with the use of or reliance upon the data displayed herein.</SPAN></SPAN></P><P><SPAN><SPAN>The user or recipient hereby waives the right to file suit or make demand and forever discharges and releases Baltimore County, Maryland, its agents, employees, successors and assigns from any and all loss, liability, damage, claim, cost or expense incurred as a result of, or arising out of or in connection with the use of data displayed herein or any reliance thereon, whether caused by the acts or omissions of Baltimore County, Maryland, its agents, employees, successors or assigns, directly or indirectly. </SPAN></SPAN></P><P><SPAN><SPAN>The user or recipient of data, hereby acknowledges that Baltimore County, Maryland, its agents, employees, successors, and assigns shall not be responsible for any and all property damage or bodily injury (including serious physical injury or even death) incurred as a result of, or arising out of or in connection with the use of or reliance upon data displayed herein.</SPAN></SPAN></P><P><SPAN /></P></DIV></DIV></DIV>
ground condition
The planimetric data was captured from 3D compilation processes using imagery captured in 2008.
Version 6.2 (Build 9200) ; Esri ArcGIS 10.7.1.11595
0
-76.912873
-76.317193
39.722342
39.193442
Technicians visually inspected the hydrology data coverage against the area boundary for completeness to ensure that no gaps in overall coverage.
The planimtric data was captured from stereo imagery collected in 2008. The features were captured in Microstation and translated in ESRI geodatabase format. The vector datasets were created by Sanborn Map Company, Inc. using the proprietary processes. Each relevant attribute field within the source datasets were mapped to the target geodatabase so that feature information would be transferred to the correct attribute fields. Features were then loaded into the empty target feature class and assigned object IDs, shape information, and attribute values based on preexisting attribute domain definitions.
HYDROLOGY_POLY_1
Feature class contains all hydrology polygons for Baltimore County
Sanborn
Feature Class
0
OBJECTID
Internal feature number.
ESRI
Sequential unique whole numbers that are automatically generated.
OBJECTID
OID
4
10
0
HYDNAME
HYDNAME
String
35
0
0
Name of feature
NA
SHAPE
Feature geometry.
ESRI
SHAPE
Geometry
4
0
0
Coordinates defining the features.
FEATURE_TYPE
FEATURE_TYPE
String
50
0
0
Coded value that identifies featur type.
NA
DOUBLE LINE STREAM/RIVER
Hydrographic features greater than 20 ft in width.
NA
LAKE, POND
Closed body of water where no flow in evident. Permanently holds water.
NA
RESERVOIR
Man made closed body of water constructed for water storage. Will have an adjacent dam structure.
NA
STORM WATER RETENTION POND
Intermittent waterbody feature. Used to store water during heavy rain events. Features can be dry or containing water.
NA
BAY SHORELINE
Edge of bay or coastal shoreline
NA
BOAT RAMP, DOCK
Boat Ramp: Slanted concrete slap used for the launching and retrieval of watercraft. Dock: Location for loading/unloading or repairing ships.
NA
PIER
Raised walkway over water supported by pillars. A pier will extend out into the water usually forming and ‘I’, ‘T’, or ‘L’ shape. They can be used for ships or as a base for recreation.
NA
DAM
Elevated barrier with the primary purpose of retaining water or controlling its flow.
NA
BULKHEAD
Retaining wall along coastal areas for the purposes of flood and erosion protection. Bulkheads can also exist in the shoreline polygon as walls in the water.
NA
SINGLE LINE STREAM
Hydrographic features less than 20 ft in width.
NA
DRAINAGE CONNECTOR
Artificial drainage path used to maintain a hydrographic network.
NA
CULVERT
Path for drainage to occur under transportation features. Usually visible by end of pipe or bulkhead along roads.
NA
FLOODWALL
Vertical retaining wall along waterways for the purpose of retaining flood waters. Often times located at entrances to culverts to prevent erosion of road surface.
NA
HIDDEN HYDROLOGY
Hydrology line hidden by transportation features or by boat ramps, docks, or piers
NA
WETLAND, SWAMP
Area of permanently saturated soil. Frequently flooded due to tidal inundations or along frequently flooding hydrographic features.
NA
STREAM CENTERLINE
Estimated centerline of double line hydrographic features
NA
INTERMITTENT STREAM
Hydrographic feature that carries water only during specific periods of the year or during heavy rain events.
NA
UPDATE_DATE
UPDATE_DATE
Date
8
0
0
SOURCE_DATE
Date of compilation
SOURCE_DATE
Date
8
0
0
NA
SHAPE.AREA
SHAPE.AREA
Double
0
0
0
SHAPE.LEN
SHAPE.LEN
Double
0
0
0
dataset
EPSG
6.13(9.0.0)
0
Simple
FALSE
0
TRUE
FALSE
20220815
Baltimore County
Public Access Technician
410-887-2233
410-821-8024
400 Washington Ave
Towson
Maryland
21204
US
M - F 830 - 430
Baltimore County