Louisiana cancels $3B coastal repair funded by oil spill settlement
apnews.com
apnews.com
Not according to the article?
> Its collapse means that the state could lose out on more than $1.5 billion in unspent funds and may even have to repay the $618 million it already used to begin building.
> The Louisiana Trustee Implementation Group, a mix of federal agencies overseeing the settlement funds, said that “unused project funds will be available for future Deepwater Horizon restoration activities” but would require review and approval.
Now, the Mississippi is tightly controlled. Most areas are no longer getting that sediment. So natural subsidence and erosion processes mean that "land" is sinking back below the water.
The solution (for this project) entailed reconnecting the Mississippi to the area, restoring sediment deposition. But this does have a lot of negative effects as well, because it impacts salinity levels and of course the Mississippi is also full of fertilizer and other substances.
Papers: https://www.scirp.org/pdf/ojce_1882046.pdf (salinity)
https://www.sciencedirect.com/science/article/pii/S004896972... (dolphin mortality)
News stories: https://www.mpbonline.org/blogs/news/five-years-after-disast...
> With salinity levels bottomed-out as a result of the overwhelming freshwater intrusion from the Spillway, an estimated 95% of the estuary’s oyster population was wiped out. 2018 remains the last time a wild oyster was harvested from Mississippi waters – once among the most productive oyster fisheries in the world.
> Data provided by MDMR shows the seafood industry along the Coast, which in many respects was both the first and primary early-economic driver of the region, suffered revenue losses exceeding $210 million in 2019 alone.
https://www.wlox.com/2023/01/19/court-rules-army-corps-engin...
I can definitely understand why, after events like this, people would be extremely leery of other Mississippi river diversions.