US Army Corps of Engineers
Jacksonville District Website

Lake O flows adjusted to support Sediment Study

U.S. Army Corps of Engineers Jacksonville District
Published Feb. 22, 2021
Photo of Port Mayaca Lock and Dam and Lake Okeechobee

Port Mayaca Lock and Dam and Lake Okeechobee

The U.S. Army Corps of Engineers (USACE) Jacksonville District will make temporary deviation to the Lake Okeechobee release schedule this week to facilitate a study by the South Florida Water Management District (SFWMD) and U.S. Geological Survey (USGS) to develop methods to indirectly measure sediment transported from the lake to the estuaries.

The deviation will allow 1,000 - 4,000 cubic feet per second (cfs) flow from structures for short periods of time during the day February 23 at the Moore Haven Lock and Dam (S-77) and February 24 at the Port Mayaca Lock and Dam (S-308).

Prior to the tests, USACE will draw down the St. Lucie Canal (C-44) to minimize the potential for opening the St. Lucie Lock and Dam (S-80) during the test, however, there is still a possibility that the S-80 may be opened for a short period of time to accommodate the increased water resulting from the testing. The SFWMD will also evaluate conditions during testing to consider whether it is possible to use Dispersed Water Management projects such as the Caulkins Water Farm to further reduce the potential for opening S-80.

“We are happy to assist the USGS and SFWMD in their effort to find ways to better understand the flow of sediment through the lake and into the estuaries,” said Col. Andrew Kelly, Jacksonville District commander. “It’s important to better understand the science about sediment transported from the lake to the Caloosahatchee and St. Lucie Rivers.”

For more information on water level and flows data for Lake Okeechobee, visit the Corps’ water management website at www.saj.usace.army.mil/Missions/CivilWorks/WaterManagement.aspx.


Contact
Erica Skolte
561-801-5734 (cell)
Erica.A.Skolte@usace.army.mil

Release no. 21-012