Odd structure out?
S-12A flows less than B, C and D

Here’s a look at discharge …

Into Everglades National Park through the S-12A.

Historical discharge calendar for S-12A

Actually, that’s incorrect. In addition to the Park, it also flows into the southeast corner of Big Cypress National Preserve. To the west of Shark River Slough, separated by Rattlesnake Ridge, is another flow way called Lostmans Slough. Long ago, when the Central and Southern Florida (C&SF) Project was being designed, there were plans to extend the L-28 ten miles south and another ten miles west, or basically, short circuit water around Lostmans Slough. Fortunately, that never came to fore. But, we can’t forget, just like Shark River Slough needs its water, so does Lostmans Slough as well. This year it didn’t get much. As you can see in the chart above, the S-12A was barely opened at all.

The S-12s consist of four structures in total: A, B, C and D. The structures look the same and are spaced about 3 miles apart. To me, whenever I drive by it, I always wonder what it would say if it could speak. The above calendar chart provides a possible translation.

Video of the S-343B and S-12A

One last thing about this structure: I also regard it as a mile marker. The L-28 is the modern-day boundary between the Everglades and Big Cypress ecosystems, but it’s hidden behind a hedgerow of trees. The S-12A is impossible to miss, as is the giant grove of cypress trees called Big Cypress National Preserve as you continue west.

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