Orthophoto of Coastal Restoration Site in Louisiana

First post to the community. Glad to be here…
The attached image was created in ArcGIS 10.8.2 using an orthophoto I created using WebODM, GCPEditor, and my DJI Mavic Air 2. (Yes, you CAN actually use a Mavic Air 2 for mapping…) The photo shows Timbalier Island under construction as we rebuilt it using dredged sediments from the Gulf of Mexico. All told, we placed over 2 million cubic yards of sand over an area just over a 1.5 miles long and 0.25 mile wide.

The other layers in the map are survey station lines and the full construction template/footprint. Final GSD for this particular image was 2.08 inches as reported by WebODM. Flight altitude was 250 ft AGL. Flight date was 6/1/2022.

Background imagery is just stock imagery served up by ESRI/ArcGIS Online.

Enjoy! More to come as we continue on with restoring the Louisiana coastline!


Zoomed in view of the area to the southeast (around STA 150+00 to STA 160+00)


Zoomed down to 1:500 to show sand fencing alignments after installation along the constructed dune


Equipment staging area and small conex boxes (affectionately known as the dump shacks). The dozers are D6’s.


Zoomed to 1:80 to show GCP. GCPs were surveyed in using a Trimble R8 RTK rover.


Survey shack and RTK Base shown with red vector symbol


These are great! Keep them coming.

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Yes, please keep us posted on this project.

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This project was finished nearly a month ago. We actually did 3 islands within the scope of the project with a 4th, smaller project added near the end. You can read about it here:

We were also restoring an island known as Isle West Grand Terre at the same time. WGT is the site of an historic fort named Fort Livingston. Here is a PDF that describes the project.

Our next project on the Louisiana coast is Chandeleur Island…14 miles long with a large seagrass bed on the leeward side of the island.

More to come…