GIS & Planning, Looking Back and Looking Forward

GIS & Planning, Looking Backand Looking Forward

Chad Hoover, GISPSteuben County GIS Coordinator

Steuben County 1883 MapSteuben County Current

• Comprehensive Plan adopted 1970• Revision of Comprehensive Plan 2006• Adopted New Zoning Ordinance August 2008• Adopted New Subdivision Control Ordinance August

2008

Looking Back

Why did we need Change?

• Properties & County Changing without proper planning

• Properties could split up to 5-1Acre tracts in 6 years without Plan Commission Approval

• Many “Rural Subdivisions” being created without being intended and putting pressures on the local ag community.

How will the County look with the existing plan?

Parcel Predictions

Current 2008 Total 39,620

New splits 13,601

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  Grand Total53,221

Jan 2010 39942

Splits By TownshipTax District

Additional Count

Clear Lake 1279

Fremont 2066

Jackson 4711

Jamestown 7394

Millgrove 5218

Otsego 4243

Pleasant 10191

Richland 1648

Salem 5517

Scott 3382

Steuben 4930

York 2640

How has County changed since 1970?

• What resources do we have from that era?• Scanned 1964,1973 & 1982 Aerial photographs

from Surveyors Office• Assessor’s Office created Landuse layer from 1973

photographs.• Compared number of home sites as addresses 1973

vs. 2008

Historical Photos

• Georeferenced 1973 Aerials using 911 road centerlines & USPLS Sections

• Intern Scanned 1964, 1973, & 1982 aerial photographs with Oce TDS 400 Scanner at 400dpi

• Over 250 images scanned

• Add image to Map• Changed Transparency• Zoom to Sections of Aerial• Use Georeference Tools (Rotate, Shift, Scale)• When Selecting Points Use Window Magnifier• Add Control Points

Georeference

Rectify Image

2005 ½ foot pixel1973 Georeferenced

1973 Land Use

• Assessor’s Office created land use layer for Scott Township based on Ag related criteria– Type 4 Tillable Land– Type 5 Non Tillable – Type 6 Forest

• 1973 Land use

• Current Land use

Acreage

1973 Type Summary

Tillable 4 570,917,825.12 13,106

Non-Tillable 5 58,046,626.94 1,333

Forest 6 91,882,974.11 2,109

16,548

2008 Type

Tillable 4 524,201,856.99 12,034

Non-Tillable 5 14,734,612.49 338

Forest 6 107968712.0928 2,479

14,851

1697

Home site Comparison

• 1973 Aerials• Current 911 Address Points

– Selected current points from Scott Township– Removed from selection, points not existing in 1973

1973 Addresses

Current Addresses

212 New Homes

1973 2008

Future Landuse Map

Ordinance Findings

• More Robust Land Division Regulations• Splits less than 20 Acre Require Platting• More Restrictive Setbacks• Limitations to Number of Dwellings per Parcel• Zoning Changes with Better Definitions

Getting Ordinance to users

• Attached Zoning Ordinance to GIS, Making Information Available to Public

QUESTIONS?

Chad Hoover, GISP

Steuben County Government

choover@co.steuben.in.us

260-668-1000 ext. 1228