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Delineation of bridges and culverts Watersheds (advanced problems)

Question asked by fernandocabral on Jul 6, 2012
Latest reply on Jul 18, 2012 by Lady_Jane
Hi all!

After a long pathway, I obtained the synthetic drainage lines of my study area, quite well defined. I intersected them with a roads layer and found about 3,000 consistently defined drainage points. I also have the catchments and the adjoint catchment well defined at the drainage lines joints. But I need to delineate the watersheds for each culvert or bridge.  When I try to use "Delineate from multiple I and O" the ArcMap simply stops responding. I think the "Batch watershed delineation" would be a better function for my purpose, but I can't find a way to automatically generate the 3,000 batch points I have (actually I'm working in a small mask, with 150 pilot points).  Even when I use the tool/button "Batch point generation" to manually define just 1 of the 150 points I have, the "batchdone" field gets a "-1", what means that the delineation has failed (with no explanation why that or any clue in the ArcHydro to help to solve the problem). DOES ANYONE KNOW HOW TO DELINEATE THE WATERSHEDS TO PREDETERMINED POINTS (THOUSANDS OF THEM)? I'd appreciate any help at all!!!