This content has been marked as final. Show 1 reply
The stream sections should be represented by a single stream centerline for a number of reasons. 1) In HEC-RAS your culverts are just placed as structures within the stream not connections between them. 2) When you bring this into HEC-RAS your culvert will be placed based on its upstream and downstream cross section. If you break the stream centerline HEC-RAS will view that as two separate streams and not allow you to do so. 3) If you split the stream at the culvert HEC-RAS would view this as a junction. You cannot have a junction with only 2 elements.
Also, dont use the bridge/culvert tool in Hec-GeoRAS. The end result is almost never what you want it to be. A better way to go about it is to draw an additional cross section along the bridge/culvert top of road(or high ground if not a road) and use this cross section river station for placement and geometry for your structure deck.