Multiple Blocked Obstructions Weirdness

[huesmann]

I’m trying to replace a pair of left-right blocked obstructions with multiple blocked obstructions, and getting some weird behavior. HEC-RAS is telling me “Error loading data for cross section plot” and when I click the box away there’s “No Data for Plot”. I can do 2 “multiple blocked obstructions” but not 3.

Anyone know what gives? Thanks!

[Vince Moody]

Never seen this issue before. What version of RAS are you using?

Also, I would check the start and end stations of the blocked obstructions. Make sure that one doesn’t start within the footprint of another. This is an issue for ineffective areas and the program has an option to automatically fix those, but I don’t think the same option exists for obstructions.

[huesmann]

4.1.0.

Using:

Tried even using 581 instead of 580 to ensure no overlap, but no dice!

[Vince Moody]

Interesting. How would you feel about posting your model?

[huesmann]

Hope this works.

I was able to insert 3 obstructions at 516.2 but could not at 516.3.
WMATA_JD.zip

[Vince Moody]

I was able to reproduce your error in 4.1.0, but I didn’t dig into why it’s giving the error. On the bright side, I didn’t receive the same error in 5.0 beta. This suggests to me that this is a bug that was resolved after the release of 4.1. Can you use 5.0 for your project? If not, I’ll play around with your dataset a little more.

[Vince Moody]

Even better, I saved the changes I made to the geometry in 5.0, and when I opened the project in 4.1 it didn’t produce the same display error. You could modify your geometry in 5.0 and run in 4.1 as needed. Bizarre.

[huesmann]

Hence the “weirdness” in the thread title. 🙂

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