Lake Level and Water Flow

Lake Level

In September 1999 St. Johns Water Management District was required by the state to set a minimum flow level for Lake Weir which is 54.9 feet above sea level.  This time 2019 the water level was 52.44 feet and as of January 2022, the level is 53.62 feet above sea level. Click here to see the January 2022 graph. To find the current water level Google “St Johns Water Management District Hydrological Data,” enter Marion County, Ocklawaha River Basin, current water level, Lake Weir at Weirsdale, Station 04720926.


Lake Weir Minimum Flow Level (MFL

St. Johns Water Management District is required to reevaluate Lake Weir’s MFL every 20 years. Field work and surface water modeling is scheduled for completion by the end of 2024. The first involves determining a minimum hydrologic regime necessary to protect relevant water resource values. The second involves comparing this analysis of ecological, recreational, and hydrological information, all of which will undergo independent scientific peer review. The minimum hydrologic regime (MFL) determined for Lake Weir will be the basis for water supply pumping permitting in the area. SJRWMD and SWFWMD are working together to gather more data to ensure that they have a robust, defensible MFL moving forward.

A surface water model has been completed, the field work to determine the environmental metrics is being done at Carney Island and the bird rookery at the present. For further information see St. Johns web site, Lake Weir SJWMD Minimum Levels. Scroll down to Lake Weir. If public hearings are held you will be notified by email.


Water Flow

Commissioner Jeff Gold has placed the Bird Island culvert expansion on the 5-year county plan as his sponsored project. This will increase water flow through the causeway and result in clearer water on the west side of Bird Island.

Lack of water flow stymies movement that is grossly affecting invasive vegetation. The abundance of vegetation creates muck that is not healthy for the lake. 

The Save Lake Weir Board is planning a trip to one or more lakes in Florida that are currently restoring waterfronts, removing muck blocking surface runoff and other projects. This will take the unity of local citizens, public agencies, and private organizations to help restore our precious resource. Other lakes have received grants and support to accomplish this and we believe we can do this also.