20200618
15544300
1.0
FGDC CSDGM Metadata
FALSE
ssGravityMain
002
1358576.875000
1499265.496250
559977.590000
677733.843500
1
-
rcssGravityMainDrawingNumber
Relationship
-
rcssGravityMainDrawingNumber
Relationship
Projected
GCS_North_American_1983_HARN
Linear Unit: Foot_US (0.304801)
NAD_1983_HARN_StatePlane_Maryland_FIPS_1900_Feet
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20260413
11230100
20260413
11230100
150000000
5000
FGDC
Version 6.2 (Build 9200) ; Esri ArcGIS 10.7.1.11595
ssGravityMain
external
f527652ceda38e946d927026262d275b
Stacey Tamalavicz
Department of Public Works
GIS Analyst
111 W Chesapeake Avenue, Room 316
Towson
MD
21204
stamalavicz@baltimorecountymd.gov
US
410.887.3452
Stacey Tamalavicz
True
Stacey Tamalavicz
1
-76.896812
-76.325352
39.721937
39.194730
Baltimore County Bounding Box
The purpose of the ssGravityMain feature class is to rely on gradually sloping pipelines to allow sewage to flow naturally downhill into the collection network.
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN><SPAN>This line feature class has five subsets to classify data; collector, inline storage, inverted siphon, overflow and tunnel. A collector is a conventional gravity sewer that is designed to the slope and size of the pipe adequate to maintain flow towards the discharge point without surcharging manholes or pressurizing the pipe. An inline storage refers to a number of practices designed to use the storage within the pipe system to detain flows by reducing peak flows. An Inverted Siphon allows sewage to pass under obstructions such as rivers. Unlike the main sewer pipe, the siphon pipes flow under pressure and must have flow velocities greater than 3 ft/s (0.9 m/s) to keep material suspended and several siphons having smaller diameters than the main sewer may be required. Overflows are extra pipeline that allows relief when there are more sewage than the pipe can handle in normal conditions. A tunnel is an underground passageway that has a pipeline within it.</SPAN></SPAN></P></DIV></DIV></DIV>
Baltimore County, Maryland
Department of Public Works & Transportation
Utility
Sewer
Network
Gravity Main
Collector
Inline Storage
Inverted Siphon
Overflow
Tunnel
<DIV STYLE="text-align:Left;"><DIV><DIV><P STYLE="margin:0 0 7 0;"><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 STYLE="margin:0 0 7 0;"><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 STYLE="margin:0 0 7 0;"><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 STYLE="margin:0 0 7 0;"><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></P></DIV></DIV></DIV>
Last Update; Compressions are completed every 4 weeks.
2025-07-11T00:00:00
external
f527652ceda38e946d927026262d275b
Stacey Tamalavicz
Department of Public Works
GIS Analyst
111 W Chesapeake Avenue, Room 316
Towson
MD
21204
stamalavicz@baltimorecountymd.gov
US
410.887.3452
Stacey Tamalavicz
True
Stacey Tamalavicz
Feature Class
dataset
EPSG
6.13(9.0.0)
63581
Simple Edge
TRUE
63581
TRUE
TRUE
None
ssGravityMain
Feature Class
63581
OBJECTID
OBJECTID
OID
4
10
0
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
FACILITYID
Facility Identification Number
String
15
0
0
TYPE
Type
String
20
0
0
SEWER_SERVICE_AREA
Sewer Service Area
String
255
0
0
PIPE_SIZE
Pipe Size
Double
8
38
8
PIPE_MATERIAL
Pipe Material
String
35
0
0
SLOPE
Slope
Double
8
38
8
DESIGN_LENGTH
Design Length
Double
8
38
8
LENGTH
Length
Double
8
38
8
UPSTREAM_INVERT
Upstream Invert
Double
8
38
8
DOWNSTREAM_INVERT
Downstream Invert
Double
8
38
8
LINING_TYPE
Lining Type
String
30
0
0
STORM_CONCERN
Storm Concern
String
5
0
0
COORDINATE_SOURCE
Coordinate Source
String
25
0
0
LIFECYCLE_STATUS
Lifecycle Status
String
25
0
0
LOCATION
Location
String
255
0
0
OWNED_BY
Owned By
String
10
0
0
MAINTAINED_BY
Maintained By
String
10
0
0
RESPONSIBLE_AGENCY
Responsible Agency
String
75
0
0
CONDITION
Condition
SmallInteger
2
5
0
CONDITION_DATE
Condition Date
Date
8
0
0
INSTALL_DATE
Install Date
Date
8
0
0
WARRANTY_DATE
Warranty Date
Date
8
0
0
REHABILITATION_DATE
Rehabilitation Date
Date
8
0
0
REHABILITATION_TYPE
Rehabilitation Type
String
120
0
0
NOTES
Notes
String
255
0
0
CREATED_USER
CREATED_USER
String
255
0
0
CREATED_DATE
CREATED_DATE
Date
8
0
0
LAST_EDITED_USER
LAST_EDITED_USER
String
255
0
0
LAST_EDITED_DATE
LAST_EDITED_DATE
Date
8
0
0
GLOBALID
GLOBALID
GlobalID
38
0
0
ENABLED
ENABLED
SmallInteger
2
5
0
SHAPE
SHAPE
Geometry
4
0
0
Feature geometry.
Esri
Coordinates defining the features.
JETTER
Jetter
String
15
0
0
SHAPE.LEN
SHAPE.LEN
Double
0
0
0
20260413