Metadata for City of Red Lodge Sanitary Sewer Lines Metadata for City of Red Lodge Sanitary Sewer Lines
Identification Information:
Originator: DOWL HKM, Inc. and the City of Red Lodge
Publication date: 09/01/2009
Title: City of Red Lodge Sanitary Sewer Lines
Publisher: City of Red Lodge

This layer contains sanitary sewer lines for the City of Red Lodge. Sewer line locations and attributes were provided by local engineering firms over various years. These data were converted from AutoCAD 2000 format and georeferenced to state plane coordinate system.
This dataset is a geographical representation of sanitary sewer lines for the City of Red Lodge and is intended to be used for mapping or analysis

Time period of content:
Calendar date: 09/01/2009
Currentness reference: publication date
Progress: In work
Maintenance and update frequency: Irregular
Access constraints: None
Use constraints:
The City of Red Lodge provides this GIS database for informational purposes only. The City did not produce it for, nor is it suitable for legal, engineering, or surveying purposes. Consumers of this information should review or consult the primary data and information sources to ascertain the viability of the information for their purposes. The City of Red Lodge provides these data in good faith and in no event, shall be liable for any incorrect results or analysis, any lost profits and special, indirect or consequential damages to any party, arising out of or in connection with the use or the inability to use the data or the services provided. The City makes these data available as a convenience to the public, and for no other purpose. The City reserves the right to change or revise published data at any time.
Point of contact:
Jon Trapp
GIS Coordinator
Red Lodge Fire Rescue
PO Box 318
801 N Broadway Ave
Red Lodge, Montana 59068

Telephone: 406-446-2320

Data set credit: DOWL HKM, Inc.City of Red Lodge
Security information:
Security classification: Unclassified
Back to Top

Data Quality Information:
Attribute accuracy report:
Unknown. Attributes come directly CAD layer information provided by DOWL HKM Engineering, Inc.

Completeness report:
Sanitary sewer lines are complete for the City of Red Lodge except for the recently annexed Spires subdivsion. However, verification of line locations and attributes are still needed.

Horizontal Positional Accuracy Report:
A distributed selection of sanitary sewer manholes were verified in the field using differential GPS. These GPS locations were used in a spatial transformation process to increase the accuracy of the sanitary sewer line lyaer. The overall horizontal accuracy is estimated at /- 10 feet.

Source information:
Source scale denominator: Unknown
Type of source media: disc
Source contribution:
DOWL HKM Engineering provided the City fo Red Lodge with all initial utility information in AutoCAD 2000 format
Calendar date: 06/01/2007

Process step:
Sanitary sewer lines were acquired in AutoCAD format from DOWL HKM Engineering, Inc. Limited information was provided on the original local coordinate system used during mapping. Therefore, the CAD layer was georeferenced to the Montana state plane coordinate system using a 2 point similarity transformation. Utility features were seperated by thematic content and converted to individual feature classes within a comprehensive geodatabase for the City. DGPS was used to map several manholes that were geographically distributed around the City. These DGPS locations were used in a second geographic transformation to improve the positional accuracy of the utility layer.
Process date: 07/01/2009
Process contact:
Tom Kohley
GIS Consultant
Telephone: 406-425-2071

Back to Top

Spatial Data Organization Information:
Point and vector object information:
SDTS object type: String
SDTS object count: 823
Back to Top

Spatial Reference Information:
Horizontal coordinate system definition:
Grid coordinate system name: State Plane Coordinate System 1983
SPCS zone identifier: 2500
Lambert conformal conic:
Standard parallel: 45.000000
Standard parallel: 49.000000
Longitude of central meridian: -109.500000
Latitude of projection origin: 44.250000
False easting: 600000.000000
False northing: 0.000000
Planar distance units: meters
Geodetic model:
Horizontal datum name: North American Datum of 1983
Ellipsoid name: Geodetic Reference System 80
Semi-major axis: 6378137.000000
Denominator of flattening ratio: 298.257222
Altitude system definition:
Altitude datum name: North American Vertical Datum of 1988
Altitude resolution: 0.020000
Altitude distance units: Feet
Altitude encoding method:
Explicit elevation coordinate included with horizontal coordinates
Back to Top

Entity and Attribute Information:
Entity type label: Sanitary_Sewer_Lines

Attribute label: OBJECTID
Attribute definition: Internal feature number.
Attribute domain:
Sequential unique whole numbers that are automatically generated.

Attribute label: Shape
Attribute definition: Feature geometry.
Attribute domain: Coordinates defining the features.

Attribute label: Layer
Attribute definition: Original CAD layer name

Attribute label: LyrHandle
Attribute definition: CAD layer handle

Attribute label: LyrColor
Attribute definition: CAD layer color

Attribute label: Linetype
Attribute definition: CAD line type

Attribute label: Shape_Length
Attribute definition: Length of feature in internal units.
Attribute domain: Positive real numbers that are automatically generated.

Attribute label: DIAMETER
Attribute definition: Pipe diameter in inches

Attribute label: STATUS
Attribute definition: Activity status of hydrant

Definition of
Attribute Value
0 Unknown
1 Active
2 Proposed
3 Abandoned
4 Removed
5 Out of Service
6 Verify

Attribute label: MAP_DATE
Attribute definition: Date mapped within CAD

Attribute label: SOURCE
Attribute definition: Source of water line information

Definition of
Attribute Value
1 HKM Engineering
2 Engineering Inc.
3 McKee Engineering
4 Brown

Back to Top

Distribution Information:
Jon Trapp
GIS Coordinator
Red Lodge Fire Rescue
801 N Broadway Ave
PO Box 318
Red Lodge, Montana 59068

Telephone: 406-446-2320
Telephone: 406-446-2320

Resource description: Offline Data

Distribution liability:
These data set is provided "as-is" without warranty of any kind. The user assumes responsibility to determine the suitablilty of the data for their purposes. The City of Red Lodge makes no representations or warranties whatsoever with respect to the accuracy or completeness of this data set and assumes no responsibility for the suitability of this data set for a particular purpose; and the City will not be liable for any damages incurred as a result of errors in this data set.

Standard order process:
Digital form:
Format name: ARCG
Fees: To be determined
Ordering instructions: Please contact person listed as distributor
Turnaround: 1 week
Technical prerequisites: None
Available time period:
Calendar date: 09/01/2009
Back to Top

Metadata Reference Information:
Metadata date: 09/08/2009
Metadata contact:
Tom Kohley
GIS Consultant
PO Box 795
Red Lodge, MT 59068

Telephone: 406-425-2071

Back to Top