I have a few areas where flow is leaving my basin at and around bridges on a RAS 4.1 model. To model this, RAS will allow me to create a lateral structure that crosses the bridges, but I’m concerned it may not be appropriate to cross a structure with a lateral structure. Has anyone else had this problem? Is it appropriate to cross a structure with a lateral structure, or should the lateral structure be broken in two (one upstream of the bridge and one downstream)?