Hydraulic and hydrologic design problems of a particular tidal outfall and its sensitivity to input parameters
Computer programmes are developed to determine the number and size of tidal outfall gates and length of overflow weir necessary to route river flood flow resulting from a design storm through dike-protected river flats into the ocean subject to tidal influence. The hydraulic characteristics of the standard Fijian gates were obtained from the 1:25 model tests. Rainfall-runoff relationships and design hydrographs were determined in sub-routines by curve number and unit hydrograph analyses. Sensitivity studies are reported and an example design included.