Private Client
Reservoir Design & Permitting
RCS provided design and permitting services for a reservoir project in Central Florida that was completed in March of 2019. This project was designed to divert stormwater and tailwater runoff to provide treatment and stormwater attenuation before discharging into North Wolf Creek. Three conceptual designs and associated cost estimates were developed to optimize potential storage and funding availability. As part of the design effort, RCS modified an existing 100 sq. mi. SWMM Hydrologic and Hydraulic stormwater model, which included updating design storms, developing new hydraulic structures, and establishing new stage storage relationships. The hydrologic and hydraulic model was used to design the hydraulic infrastructure and optimize final storage and discharge elevations.
The offline reservoir was installed in a location that utilized the existing topography to maximize total storage while minimizing impacts to vegetation and existing landscape. The final design installed an innovative diversion structure specifically designed to divert water into the offline storage reservoir during low flow conditions and discharge water directly downstream during high flow conditions. The diversion structure utilized innovative vegetative concrete block mat that allows for high flow velocity armor while promoting vegetative cover during low flow conditions. Furthermore, this structure was designed to be rapidly installed with reduced impacts to the surrounding vegetation and stream bank. The offline reservoir was designed with two 96” full round risers for high level discharge and one 24” flashboard riser to allow for water bleed-down and management of water levels in the reservoir. This design ultimately led to a faster vegetative recovery period and a smaller construction footprint. Additional components included the construction were 900 feet of bypass channel, a 400 ft long six ft tall levee, five water control structures, one stabilized road crossing, and an emergency overflow structure. RCS also provided final certification and inspection as part of final construction checkout.
