Tennessee Base Mapping Program

1
Tennessee Base Mapping Program
Dennis T. Pedersen,Department of Finance and
AdministrationOffice for Information
Resources Director, GIS Services
2
TN Base Mapping Program

• Overview
• Status
• Activities
• Next steps

3
TN Base Mapping Program Basic Products

• Ortho Imagery
• Cadastral (Parcel)
• Limited Planimetric Data
• Street Centerlines
• Edge of Pavements
• Ridge Lines
• Hydrography
• Scales are 1100 and 1400
• Format is ESRI compatible

4
TN Base Mapping Program Value Added Products

• High Accuracy DTMs
• Contours
• Building Footprints

5
TN Base Mapping Program Scope

• Continuous coverage for the entire state
• Over 24,000 100 sheets
• Over 11,000 400 sheets
• Over 3.6 million parcels

6
(No Transcript)
7
(No Transcript)
8
(No Transcript)
9
(No Transcript)
10
(No Transcript)
11
(No Transcript)
12
(No Transcript)
13
TN Base Mapping Program History
1996/1997 2 county Pilot Program conducted by
the Comptroller of the Treasury Maintain Parcel
maps for 80 of 95 counties Maintain Assessment
Database for 90 of 95 counties 1998 Pilot
Program extended to 3 additional
counties Program coordination transferred to
Office for Information Resources
14
TN Base Mapping Program
Pilot Counties 1997, 1998
15
TN Base Mapping Program Collaboration

• Funding Model
• Benefits of collaboration
• Cost Share between State, County, Municipal, and
  Federal governments
• Local Shares 25 per county
• State 75 (the rest!)

16
TN Base Mapping Program Collaboration

• Reduced costs for collection, update, and
  maintenance
• Reducing redundancy of collection
• Higher accuracy data for all users
• Increased ability to integrate data at all levels
  of government
• Horizontal Integration NRCS and FEMA
• Vertical Integration Local govt / Census

17
TN Base Mapping Program Collaboration
Anderson County Total Cost 473,500 Local
Share118,400
Local Share 118,400 County 38,700 E911
Board 21,400 City of Oak Ridge
12,500 Oak Ridge Utility Dist 12,500 Powell
Clinch Utility Dist 26,100 City of Clinton
4,700 City of Norris 600 City of
Oliver Springs 1,000 City of Lake City
800
18
TN Base Mapping Program Status
19
TN Base Mapping Program - Next Steps
Gibson County
Total cost 246,800
81,800 - 100 Ortho Imagery
78,800 - 400 Ortho Imagery
105,300 - Parcel Data
Local Cost Share 66,500 (Basic Products)
20
TN Base Mapping Program Return on Investment
Manage County Resource
Property Tax is primary revenue source for budget
visually inspect property over/under valued
identify patterns/trends in data
determine influences on variations in data
Increase accuracy and Manage Resources
21
County By Market Area
22
Parcels Labeled with Appraised Values
23
Parcel with Trees Overlay
24
TN Base Mapping Program Return on Investment
Economic Development
Site Selection criteria
proximity to transportation
size of parcels
assess elevation, slope, drainage
Saves Money Rutherford Co.
25
TN Base Mapping Program Return on Investment
Emergency Management
E911 needs to locate incidents and dispatch first
responders
Misrouted cell and VOIP calls
Need statewide standardized street
centerlines NG911
Using GIS can improve response time and
ultimately help save lives
26
TN Base Mapping Program Return on Investment
Save Money
Save Time
Increase Accuracy
Improve Access
Manage Resources
27
TN Base Mapping Program - Next Steps
Gibson County
Local Cost Share 66,500
81,800 - 100 Ortho Imagery
78,800 - 400 Ortho Imagery
105,300 - Parcel Data
Revised Local Cost Share 26,325 (parcel costs)
28
Thank You!!

• Contact Information
• Dennis Pedersen, Director, GIS Services312 8th
  Avenue North16th Floor, WRS Tennessee
  TowerNashville, TN 37243-0288
• E-mail dennis.pedersen_at_state.tn.us
• Phone [phone]

See us on the WEB too http//gis.state.tn.us