Tag Archives: earthen dam

Suwannee River Sill and Mixons Hammock –Shirley Kokidko 2025-11-26

Here’s what the second and third gates in the Suwannee River Sill looked like a week after Shirley Kokidko’s Low water at the first gate, Suwannee River Sill, Okefenokee Swamp 2025-11-20. Plus a gator ambling down to the river, and Mixon’s Hammock, upstream towards Stephen C. Foster State Park.

[Suwannee River Sill, Okefenokee Swamp --Shirley Kokidko, Alligator, Second and Third Gates, and Mixons Hammock 2025-11-26]
Suwannee River Sill, Okefenokee Swamp –Shirley Kokidko, Alligator, Second and Third Gates, and Mixons Hammock 2025-11-26

Here are a few videos:

Remember, despite the Florida myth, the gates in the Suwannee River Sill are always open, since about 2001.

The third gate isn’t even a gate: it’s just a breach in that 4.5-mile earthen dam, so the North Fork of the Suwannee River can get through. The Sill was meant to keep water levels up in the Swamp to prevent wildfires, but it did not succeed. Also, it turns out wildfires are necessary for the Swamp’s vegetation to regenerate itself. So after a study starting in 1998 and a two-year trial period, the gates have always been open.

The current low water in the Swamp and in the Suwannee River is because we’re in a drought.

It rained a bit the last day or so, and more is predicted. But so far that has made almost no difference in the level of the Suwannee River at Fargo, GA.

Other rivers in the Suwannee River Basin also show almost no change. See Current River and Lake Levels by Florida’s Suwannee River Water Management District (SRWMD).
http://www.mysuwanneeriver.org/realtime/river-levels.php

There is a gauge at the Sill, but Continue reading

Suwannee River: standard for dissolved organic matter

A primary objective of the WWALS Science Committee is to compile published scientific literature for the Suwannee basin. We are doing this using online search engines including the University of Georgia System Galileo program and Google Scholar. Remarkably, our searches have identified thousands of published scientific papers and reports that link to the keyword, “Suwannee”. Examination of many revealed that they describe research using dissolved organic matter isolated from the Suwannee River near Fargo, GA. This is the material that gives the water its special color.


Photo: Richard T. Bryant, in Pamela P. Holliday, Sherpa Guides, unknown date, The State of the Swamp: The Suwannee River Sill and DuPont’s Mining Proposal Grab attention and Concern in the Okefenokee

Digging further Continue reading