Post on 15-Dec-2015
Geodetic, ISPLS, HARN Framework
Workgroup/Committee
Tie Card Project
Lorraine WrightINGISI representative
Participants
• INGISI members (state, county, local, private)• Indiana Society of Professional Land
Surveyors (ISPLS)• Office of the Indiana State Geodetic
Advisor (HARN)• Indiana County Surveyors Association• Private Companies• Indiana University and Indiana Geological
Survey
Purpose
• Original purpose: to develop a Statewide Framework of Geodetic information
– The federal government maintains most of the data
– Link to the National Geodetic Control site for Geodetic Control
Surveyors
• Survey data is the basis for:
– Geodetic Control
– Cadastral - PLSS Control
– Boundary information
Purpose
• Develop a state-wide framework layer of PLSS corner information - Cadastral Framework
– The workgroup determined that the Tie Card Project would be the most beneficial project in the absence of coordinate data
Purpose
• Develop a process to enable Counties (to link the Tie Cards to a GIS
– The Tie Card is the basic building block (documentation) for the PLSS Corner
Pilot Project
• Develop a pilot project with a county
– Bartholomew County agreed to be the pilot county
– Work through the entire process and document it so other counties would benefit from having the process developed
Equipment for the Pilot
• INGISI and ISPLS worked together to purchased equipment through a grant
– 2 laptops– 2 scanner/printer/copiers were purchased
Pilot Project -Phase I
Develop a file naming convention for the scanned tie cards that could be utilized State-wide
File Naming Convention • Surveyor use descriptions to describe a
Public Land Survey Section corner (ex. NE 1/4, NE 1/4, NE1/4, Section 03,T23N, R06W
File Naming Convention
• IN02_T23NR06E03_08
Computer File Name will include – (example)• State Name and Prime Meridian – IN02• Township number - T23• Township direction – N • Range number – R06• Range direction – E • Section – 03• Grid Number – 08 (Grid numbering system begins
with 0 in upper left hand of section and ends in 80, bottom right corner)
Phase II
• Develop a method to be able to link the scanned Tie Cards to a map
– Renaming Software developed by Brian Wood, Paul I. Cripe, Inc.
Cookbook
• Develop a cookbook defining process:
– Scan tie cards
– Rename scanned tie card
– Link tie cards to Point Grid map
Pilot Project
• Status
• Bartholomew County Pilot– Currently data being verified for quality and
completeness– Will deliver the project to the County in an
ArcReader Project – All the data can be included in their GIS or
can be used as an ArcReader Project