A Canal Capacity Evaluation Program for the South Florida Water Management District

The Impact of Operational Scenarios and Concrete Aging Factor on the Freeboard Height of an Irrigation Canal

“…Any change in the estimation of the roughness coefficient influences the energy slope estimation, and any change in the discharge coefficient affects the velocity estimation. Consequently, the changes in these coefficients affect the water surface determination when applying (2). The effect of climate change (including changes in rainfall and evaporation), drought, and economic considerations force the designers to work on practical methods for canal restoration and modify the inputs in the G.V.F equation.…”

“…The G.V.F equation was used to develop the water surface profile: (1) where S o is the bottom slope which is positive in the downward direction, f is the friction slope which is positive in the downward direction, y is the water depth measured from the canal bed to the water surface, x is the longitudinal distance measured along the canal from the endpoint toward upstream, and Fr is the Froude number. The friction slope was approximated using Manning's equation: (2) where S f is the friction slope which is positive in the downward is Manning's roughness coefficient, V is the crosssectional mean velocity, is a constant equal to 1.49 for English units and 1.00 for SI units, and R is the hydraulic radius. A variety of mathematical techniques can be applied in a traditional method to generate the results [23].…”

“…Despite the prevalent traditional methods that are widely used in the initial design phase of irrigation canals, water delivery performance and economically optimal design of canal sections are still hot topics in current engineering works [1][2][3][4]. The geometry of the canal section plays a key role in the total cost of an irrigation system.…”

Potential challenges for the restoration of Biscayne Bay (Florida, USA) in the face of climate change effects revealed with predictive models

“…Watersheds draining to the Bay have a complex water management system composed of levees, reservoirs, and canals along with their water control structures (Wilsnack et al, 2019). This water management system serves to drain historical wetlands and provide flood protection to human populations.…”