Wisconsin Land Information Association Annual Conference 2016: Use Cases for the Statewide Parcel Layer

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Information about Wisconsin Land Information Association Annual Conference 2016: Use Cases...

Published on November 1, 2016

Author: WisconsinSCO

Source: slideshare.net

1. • Statewide parcel collection became statutory requirement resulting from of Act 20 • Wisc. s. 59.72(2)(a) - directed DOA to collect parcels and select tax roll attributes • Called for data on Oct. 23rd 2014 and data streamed in steadily over next 4 months. • Processing of “V1” statewide layer was complete June 31st 2015.

2. • Wisconsin Version 1 “V1” Statewide Parcel Application and GDB download released July 31st 2015. – 3.43 Million polygon dataset. – Application allows users to interactively search and explore the parcel data. – GDB download allows users to fully analyze all attributes through GIS or deploy their own map service.

3. What’s in a parcel layer? •Wisconsin use cases of the “V1” layer •Theoretical Usages •Other States’ Layers

4. What have other states done?

5. • One of the most established statewide layers with completeness dating back to 2003. • Only 56 counties, but 4th largest state by area. • 49 counties maintained by Montana DOR. • 7 counties maintained by county themselves. • ~ 900,000 polygons statewide • Monthly updates, lead by Montana State Library who aggregates geometries and joins CAMA (tax) data.

6. • 5 years (‘98-‘03) to digitize 900,000 parcels. • With a $3 Million initial investment • Updates and maintenance funded annually via a Montana Land Information Act budget line item. • Total annual support cost is $802,329 in 2009.

7. • Realized first return on investment(ROI) in 2005 (2.5 years after going live). • Parcel layer value estimated at $9 Million (as of 2009) by a Montana DOA study. – http://giscoordination.mt.gov/cadastral/Cadastral_ROI_Final.doc

8. • Proven Use Cases: – Agricultural appraisal – Leasing land for oil and gas operations – Routing transmission lines (right of way projects) – Testing sites where lead testing or abatement has or has not been performed – Hunting permission on private land

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