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Transferring Existing CBRS Lines to DOQ Imagery

Transferring Existing CBRS Lines to DOQ Imagery. CBRS boundaries are digitized and overlaid on horizontally-controlled DOQ aerial photography. Remapping FSUs. Three types of boundary adjustments are required: Changes to “fit” DOQ imagery Adjustments to match documented boundary intent

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Transferring Existing CBRS Lines to DOQ Imagery

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  1. Transferring Existing CBRS Lines to DOQ Imagery • CBRS boundaries are digitized and overlaid on horizontally-controlled DOQ aerial photography

  2. Remapping FSUs • Three types of boundary adjustments are required: • Changes to “fit” DOQ imagery • Adjustments to match documented boundary intent • Changes to account for geomorphic change as mandated by the 5-year review legislation

  3. FSU Changes to “Fit” DOQ Imagery • Note boundary relationship to road • Note location of features for alignment

  4. FSU Adjustments to Reflect Intent • Administrative Record indicates boundary was intended to exclude existing development • Note boundary relationship to infrastructure on 1979 base map

  5. FSU Adjustments to Reflect Intent • Administrative Record indicates boundary was intended to exclude existing development • Note boundary relationship to infrastructure on 1979 base map • Note boundary relationship to construction completed 1981

  6. FSU Adjustments to Reflect Intent • Refinement of boundaries based on digital property parcel data • Note boundary relationship to trailer park identified on 1979 base map

  7. FSU Adjustments to Reflect Intent • Research indicates this FSU should follow specific property boundaries. The digital parcel data (in purple below) allows the CBRS boundaries to be adjusted to reflect intent.

  8. FSU Geomorphic Changes • Note boundary relationship to stream

  9. FSU Geomorphic Changes • Note boundary relationship to stream

  10. Remapping OPAs • OPA remapping is significantly different from FSU remapping • All owners / managers of protected lands must be contacted • Intensive outreach and coordination is key • Examples follow to demonstrate: • Transferring existing OPA boundaries to DOQs • Overlaying parcel data representing multiple landowners • Adjustment of CBRS lines to property / parcel data

  11. Remapping OPAs • Note location of features for alignment

  12. Remapping OPAs • Overlay County parcel data • Determine 1990 land ownership • Identify potential addition issues Private Dauphin Island Park & Beach Board U.S. Coast Guard Sea Lab (University of Alabama) DIPB Board land Leased to Sea Lab DIPB Board RV park (not desired for inclusion)

  13. Stakeholder Concurrence Remapping OPAs • Coordinate with land managers to “fit” boundaries to photographic base • Obtain land manager’s signature to show concurrence that OPA includes only eligible, intended lands Stakeholder Signature US FWS Signature

  14. Private Dauphin Island Park & Beach Board U.S. Coast Guard AL-05P Sea Lab (University of Alabama) AL-05P DIPB Board land Leased to Sea Lab DIPB Board RV park (not desired for inclusion) Remapping OPAs • Recommended OPA boundary

  15. Benefits of Digital Orthophoto Base Map • Visual cues facilitate identification of existing development • Enhanced precision in mapping geomorphic features • Location of planimetric features • Ability to overlay and analyze digital parcel data • Horizontal spatial control of boundary lines

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