Jefferson County Assessor’s Office

Angela (Angie) Banks, Assessor

MappingCAD to GIS Conversion

BeginningCAD maps, Approximately 30,000 Parcels, 423 Maps including 13 Index Maps and detail maps from 500 scale to 20 scale, spatially

referenced. Originally digitized at +/- 10% accuracy requirements.

Conversion Phase 1

• Direct conversion of CAD maps to GIS

• July 6, 2009, L.R. Kimball sends a person to train mapper.

• 2.5 days of training.

• Additional time booked for questions.

• April 21, 2010, Conversion Completed (about 9.5 months)

Phase 1 Conversion Goals

• No data loss from CAD to GIS, Accomplished

• Similar look to printed maps, Accomplished

• Seamless GIS map, Accomplished

Conversion Notes

• When complete, there were 13 differences between the IAS (Integrated Assessment System) and the GIS database.

• 6 were mapping/survey errors which are fixed

• The rest are parcels that technically should be but are not on IAS. Most were sold to the State in the 1930’s. We are working with the State Auditor to resolve these.

Completed Phase 1

MappingGIS Online

With the new GIS maps, a new way to provide online access to the maps was

necessary.

•MapGuide Open Source was chosen•Free, Open Source, Easy, Customizable

MapGuide Open Source

Jefferson County Assessor’s Office Online GIS (MapGuide Open Source)

• Currently has parcels and public IAS data for all parcels, allows queries by owner name, parcel ID and address (from the Addressing Office), ability to turn on address layer.

• Online and available for viewing by the public• Additional functions and layers are available for

County Employees• We are working with the 911 GIS department to

put their maps online• Training provided to Jessica on 6/17/10

MapGuide

MapGuide

MapGuide

MapGuide Tools

•Measure•Zoom (Previous, next, initial)•Zoom to drawn rectangle•Zoom in•Zoom out•Select tool•Pan tool

MapGuide TasksThe Tasks allow you to search by owner name, by Parcel identification number or by address

Conversion Phase 2

• Delayed due to upcoming ESRI version 10 release which changes the, as yet unpublished, Parcel Model and temporal additions which will be integral portions of phase 2

• Will involve remapping the entire county to survey standards including the roads, rivers and railroads. (We need to be able to answer questions such as: Is that road owned by the state?, Is it an easement?, Is it a right of way?)

• This will be the beginning of the Jefferson County Land Records Information System

• Projected to take 3 to 5 years to complete

Other Changes

• Kiosk now available in the Mapping Office

• New Website on a Web Server

• All Plats Scanned from the County Clerks Office

• Data book, Commercial Data book and Lookup books are now available in the mapping office

The Future

• We anticipate continuing in our efforts to make the office better and continuing to work with the other departments to make the County better.

Thanks

• To all of our employee’s for adapting to all of the changes

• The County Clerk’s Office for their assistance

• The 911 GIS addressing office for their assistance and working together toward common goals