Contra Costa County Orthophoto Project Coordinated Partnership of CCC, CC Clean Water Program, Iron

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Contra Costa County Orthophoto
ProjectCoordinated Partnership of CCC, CC Clean
Water Program, Iron House and Central CC
Sanitation District
Presented by Lis Klute and Bill Zeman Contra
Costa County Public Works Department HJW
GeoSpatial, Inc.
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Topics

• Why Ortho Photos
• Return On Investment
• Contra Costa Project
• Lessons Learned
• Summary

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Why Capture Ortho Photos?
Capture Data to Support Your GIS
needs ?Drainage Inventory ?Watershed Modeling
Analysis ?Environmental Resource
Studies ?Capital Improvements Inventories ?Emergen
cy Services ?Facilities Management
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Return On Investment

• Improve Quality / Quantity of Information
• ? Provide framework to develop foundation GIS
  layers and a spatial reference
• Increase Efficiency Public Service
• ? Perform Inventories, modeling, area analysis,
  and planning
• Leverage Data Investments
• ? Multiple uses of orthophoto base map, less cost
  for return flights
• Promote Community Through Internet Access
• ? Orthos easily available via the internet and
  VERY popular

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Project Initiation

• Form Partnerships
• Define the project priority areas
• Define Technical Specifications
• Define Funding Plan
• Identify Project Schedule
• Select Vendor via RFP Process
• Define Scope of Work
• Clarify any open issues and expectations

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ProjectMethodology

• 1. Project Initiation Meeting
• 2. Aerial Photography GPS
• 3. Aerotriangulation
• 4. Digital Mapping
• 5. Digital Orthophotography
• 6. Delivery Support

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Delivery, Support Updates

• Deliverables
• Digital Orthophotos
• Tiff and MR SID Compression
• Centerlines Contours
• Multiple Formats
• Ongoing support
• How to Use Imagery
• Fulfillment
• Web Serving
• Updates
• Will Set Up Program
• Fly Changed Areas
• Update as Needed

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Lessons Learned and Other Advise

• Work with Vendor to identify issues that may
  arise related to Expectations up front
• Keep Project Partners Up to Date Weekly
• Try to set a realistic schedule and understand
  this may shift due to weather or other technical
  Issues
• Budget to QA/QC extensively when providing varied
  formats
• Work out Delivery Costs Up Front
• Define How Data Orders will be Fulfilled and Who
  will Fill Them
• Use the Internet and FTP if Possible
• Give the Data Away if at all Possible, but make
  it a group decision Contra Costa is selling the
  data to cover the cost of re-flying.

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For More Information

• Lis Klute
• GIS Coordinator Contra Costa County Public
  Works Department
• Tel [phone]
• E-mail eklute_at_pw.co.contra-costa.ca.us
• Bill Zeman
• Manager - Consulting and Development Services
• Tel [phone]
• E-mail zeman_at_hjw.com

County WEB GIS Viewer Application http//contra-co
sta.gatekeeper.com