Alongside viewing 1D River Results if using a 1D river network, and 1D Urban Results if using a 1D urban network, you may be interested in the specific flow values passed across the link-references.
For integrated river and urban 1D simulations, the values passed across your link-references are provided in the supplementary binary results file (extension .zzx). The river diagnostics file (extension .zzd) also produces a mass balance summary at the end of the simulation.