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Mile Markers - Highways

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This metadata information is subject to our disclaimer. Metadata information presented here is maintained manually. Therefore, date-sensitive fields such as date of last update may not be up-to-date. All metadata is subject to errors inherent in a manual process.

Descriptive nameMile Markers - Highways
File namemilemark
Spatial domainPima County
Abstractmilemark displays the locations of mileposts along all highways in Pima County and kilometer markers along I-19. Collected or verified by ADOT/TPD with vehicle drive-by using subscription service differential GPS. See more information.
Known errors/qualificationsAll interstate and state route milepost and kilometers are from ADOT data, Catalina Highway mileposts are from City of Tucson data. The MP1-22 on Arivaca Rd are from PC survey done in April 22, 2008.
Feature typepoint
Feature count 1,202
Thumbnail Map milemark.pdf PDF file format   (434,635 bytes, PDF created 07/20/2022 )
ProjectionNAD83 HPGN (Parameters)
Field/value metadata Field metadata
Source organizationADOT
Source contact
Source document or file name
Source date201109
Source scale
Source formatShape
Date of last data update
(This date may not be current.)
Last data update byRay Brice
Date/time last touched - Meaning? 2022-06-12  06:06 PM - Enterprise GDB - Library input format
  2022-06-13  01:57 AM - Shapefile
  See coverage files, if any, for date.
LineageMade from the azmilemk layer.
Added mile markers for Redington RD - 02/05/2008.
Removed MP8.5 and MP11 then added mile markers on Arivaca Rd - 06/12/2008.
Updated with azmilemark in \\gislib\mars1\az\shapes-07/16/2008.
Updated the mile markers along the Catalina HWY 08/26/2008.
Added mile markers for Whitehouse Canyon Rd and Madera Canyon Rd from TOSS database and mapped using orthos and virtualride, 12/23/10. Added mile markers on Arivaca Sasabe Rd using orthos and virtualride, 1/31/11.

Updated with ADOT data, deleted ONROAD, STATION, CARD, MPTYPE, MP5, MP10, MP20, MPNUM, X_RTE_ID, RTE_ID, SOURCE_F from the attribite field and added source field. 09/02/2011. Added MP 25 on Mt. Lemmon HY, location provided by Gloria Browne, 2/2/2012.
On maintenance?No
Maintenance organization
Maintenance description
Original conversion byPC DOT GIS Division
Pima County ITD GIS contactRay Brice
Alternate Pima County ITD GIS contacte-mail address
On  Pima County Geospatial Data Portal? Yes

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