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Lake County Water Authority | Leesburg, Florida | 2003 - Design: 2004, Construction: 2008
 Lake Griffin is a 9,300-acre lake at the headwaters of the Ocklawaha River in Lake County, Florida. BCI provided evaluation, design, and construction support services of a project to remove sediments from more than 30 canals ringing the lake and to place those sediments in a confi ned section of a subsided muck farm to restore wetlands.
This project required BCI’s expertise in:
- Water resource engineering (disposal site impoundment water budget)
- Hydraulic system design (floating pipeline with booster pumps)
- Water quality treatment (alum & polymer feeds for turbidity control)
- Geotechnical engineering (slope stability, embankment design, settling & consolidation of mixed media slurry)
- Construction support services (bid specifications & plans, contractor screening & selection, engineering inspections, progress payment review, permit compliance review, landowner coordination)
- Wetland Science
Unique components of the project include:
- Long transport distances (five to twelve miles) from the canals to the disposal site
- Highly variable composition of the dredged sediments (unconsolidated sands, flocculent muck, consolidated muck, & cohesive clay)
- A requirement for “surgical” sediment deposition at a subsided muck farm to cap pesticide contamination hotspots while simultaneously maintaining several feet of water over the disposal site.
The project was completed by the low bidder without change orders under BCI’s inspection and coordination program.
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