20251112
18290100
1.0
FALSE
CongressionalDistrict
002
2242005.802800
2744507.802900
1198703.531000
1981498.655600
1
Projected
GCS_North_American_1983
Linear Unit: Meter (1.000000)
NAD_1983_Idaho_TM
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20260128
11432000
20260204
10562100
20000000
5000
FGDC
Idaho Transportation Department (ITD)
Headquarters GIS
208-334-8000
PO Box 7129
Boise
Idaho
83707-1129
US
GIS-Info@itd.idaho.gov
20260204
ArcGIS Metadata
1.0
Roads and Highways – Congressional Districts
2025-11-18T00:00:00
vector digital data
Idaho Transportation Department (ITD)
Headquarters GIS
208-334-8000
PO Box 7129
Boise
Idaho
83707-1129
US
GIS-Info@itd.idaho.gov
Idaho Transportation Department (ITD)
This dataset was developed and provided by the Idaho Transportation Department (ITD). Users should credit ITD as the original source when utilizing or referencing this information in maps, reports, or applications.
Idaho Transportation Department (ITD)
Headquarters GIS
208-334-8000
PO Box 7129
Boise
Idaho
83707-1129
US
GIS-Info@itd.idaho.gov
Transportation
Roads and Highways
Linear Referencing System
LRS
Road Network
Transportation
Roads and Highways
Linear Referencing System
LRS
Road Network
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Spatial Data Disclaimer - The Idaho Transportation Department (ITD) provides this geographic data any any associated metadata "as is" without warranty of any kind, including but not limited to its completeness, fitness for a particular use, or accuracy of its content, positional or otherwise. It is the sole responsibility of the user to determine the usability of the data for their purposes. In no event shall ITD have any liability whatsoever for payment of any consequential, incidental, indirect, special, or tort damages of any kind arising out of the use of or reliance on the geographic data or metadata. In providing this data or access to it, ITD assumes no obligation to assist the user in the use of such data or in the development, use, or maintenance or any applications applied to or associated with the data or metadata.</SPAN></P></DIV></DIV></DIV>
Esri ArcGIS 13.3.4.52636
-117.526208
-110.657784
49.034371
41.926595
1
This extent represents the geographic boundaries of the state of Idaho, United States, covering all roads within the road network where congressional district features are located.
2025-11-18T00:00:00
0.000000
1273.050000
This dataset contains the Roads and Highways Road Network Linear Referencing System (LRS) congressional district event polyline feature class that includes all roads in the road network. A congressional district is an area that elects one member to the U.S. House of Representatives. Each state is divided based on population; Idaho has two congressional districts.
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>The Idaho Transportation Department's (ITD) Roads and Highways Road Network Linear Referencing System (LRS) congressional district feature class is a linear representation of the congressional districts polygon layer. This layer is used within external applications that summarize data based on congressional district boundaries but cannot utilized a polygon geometry, therefore utilize the linear features.</SPAN></P><P><SPAN>Congressional districts are the 435 geographic areas in the U.S. that each elect one member to the House of Representatives, with boundaries drawn by states after each Census to ensure roughly equal population, though their shape and number vary by state, with populous states having more districts than less populous ones, with Idaho having only two.</SPAN></P></DIV></DIV></DIV>
The dataset follows established standards and conventions for logical consistency. All data elements are structured and formatted according to predefined rules, with validation processes in place to confirm consistency and accuracy.
The dataset has been reviewed to ensure all relevant congressional district features are included.
The Idaho Transportation Department (ITD) implemented ArcGIS Roads and Highways in 2018, which is a Linear Referencing System (LRS) that manages road and highway data. It uses a data model with feature classes for routes, centerlines, and events to store and maintain roadway information, enabling accurate location management and analysis.
The Idaho Transportation Department (ITD) first implemented a Linear Referencing System (LRS) for managing road data in the 1970s, which was a mainframe-based system called the Milepoint and Coded Segment System (MACS System). In 2012, the LRS was migrated off the mainframe to Network Manager (NetMan). And finally in 2018, the LRS migrated to ArcGIS Roads and Highways. Editing stopped in NetMan in early 2017 for the migration to Roads and Highways, which is why the earliest "From Dates" on the data layers is 02/07/2017.
2017-02-07T00:00:00
0
Roads and Highways – Congressional Districts
Idaho Transportation Department
Feature Class
0
Road Network LRS Congressional Districts
OBJECTID
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
OBJECTID
OID
4
10
0
SHAPE
Feature geometry.
Esri
Coordinates defining the features.
Shape
Geometry
8
0
0
FromDate
The date the record was active (this can be the same date it was created or any other date in the past to 2/2/2017) in the system.
Idaho Transportation Department
Date field representing the beginning date.
From Date
Date
8
0
0
ToDate
The date the record was retired in the system. If this field is null then the record is still active.
Idaho Transportation Department
Date field representing the end date.
To Date
Date
8
0
0
EventId
This is an auto-generated string field to ensure uniqueness across the system.
Idaho Transportation Department
String field that is auto-generated by the system.
Event ID
String
38
0
0
RouteId
The Route ID is created by the following in order:
- 5 unique numbers
- Designation of A (Ascending) or D (Descending)
- Designation of IN (Interstate), US (United States Highway), SH (State Highway), OH (Off Highway), FD (Federal Route), or PO (Polygon/Political Boundary)
- Highway number (i.e., 184, 093, etc.) or 000 for all other routes.
Idaho Transportation Department
String field representing the unique identifier.
Route ID
String
255
0
0
FromMeasure
Starting measure for the record along the road network.
Idaho Transportation Department
Double field representing the measure location.
From Measure
Double
8
38
8
ToMeasure
Ending measure for the record along the road network.
Idaho Transportation Department
Double field representing the measure location.
To Measure
Double
8
38
8
LocError
The location error field indicates if there are data quality issues for Linear Referencing System (LRS) events, showing a status in the event layer's attribute table, with "No Error" meaning the event is accurate and any other status indicates a problem that needs resolution. It helps identify issues like events not being correctly located on a route or events created with incorrect measures that must be updated to ensure accurate data representation.
Idaho Transportation Department
String field representing a location error.
Location Error
String
100
0
0
SystemCreateDate
The date that the record was created in the system. This date does not have to match the From Date or the Established Date fields.
Idaho Transportation Department
Date field that is auto-generated by editor tracking.
System Create Date
Date
8
0
0
UserCreate
The username who created the record in the system.
Idaho Transportation Department
String field that is auto-generated by editor tracking.
User Create
String
255
0
0
SystemModifyDate
The date that the record was modified in the system. This date does not have to match the From Date or the Established Date fields.
Idaho Transportation Department
Date field that is auto-generated by editor tracking.
System Modify Date
Date
8
0
0
UserModify
The username who last modified the record in the system. At first creation, this will match the User Create field, but will change as the record is modified.
Idaho Transportation Department
String field that is auto-generated by editor tracking.
User Modify
String
255
0
0
GlobalID
A Universally Unique Identifier (UUID) that is automatically generated and assigned to a feature. This field is not editable by users and is maintained by the software.
Esri
Global ID field that is auto-generated by the system.
GlobalID
GlobalID
38
0
0
RouteSystemCode
Route System Code
String
2
0
0
The route system code indicates the type of system the road segment belongs to, separated into interstate, united states, state highway, off highway, federal route, and polygon/political boundary designations. This comes from the Route ID and is the 7th and 8th characters.
Idaho Transportation Department
String field that is the Route ID 7th and 8th character.
RouteSystemNumber
Route System Number
SmallInteger
2
5
0
The route system number indicates the number associated with the route system code. This is the interstate, united states, or state highway number for that road segment. For off highway, federal route, and polygon/political boundary segments, this will be ‘0’. This comes from the Route ID and is the last three digits.
Idaho Transportation Department
Whole number that is the last three digits of the Route ID.
CongressionalDistrict
Congressional District
String
255
0
0
The territorial division that is numbered that represent the state from which a member of the U.S. House of Representatives is elected.
Idaho Transportation Department
Text field representing the congressional district number.
SHAPE.STLength()
Length of feature in internal units.
Esri
Positive real numbers that are automatically generated.
Shape.STLength()
Double
0
0
0
Enterprise Geodatabase Feature Class
dataset
EPSG
9.5.1(10.8.0)
Simple
FALSE
0
TRUE
TRUE