Weirs Closed

[Smalls]

Originally Posted by MathGeek

Making the lake itself less salty is a multi-million dollar project. The best you can do with the realistic financial potential of a regional conservation group is improve the science on when the weirs are opened and closed and perhaps exert a bit of policy pressure investigating options to lower salinity in the lake.

By installing salinity sensors on the lake side and the marsh side, you can open the gates any time conditions show that open gates would lead to a net flow of salt out of the marsh and close them when actual local conditions show open gates would add salt to the marsh.

Until this is handled, efforts at replanting vegetation are risky because improper weir management will let too much salt into the marsh and kill the veggies.

Not entirely correct. Lets not forget, I did revegetation projects behind the weirs. I planted grass all over Cal/Cam and south central Louisiana for that matter. Its all about the planning. In 3 years, we had 2 projects fail out of 30, and those were because of high water that was over the plants.