Fatal error – slope < 0.00

[Osta Surjadi]

Hi HARC team,

I’ve generated a .catg file using ArcRORB. I’ve been getting the attached error message when trying to read in the .catg file. I had thought it was an issue with my reach slopes but I’ve made sure that none of them have a slope less than zero. The flattest slope I’ve got is 0.003% and the steepest is 11.5%. Can you please help resolving this issue?

Cheers,
Osta

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[Benson Liu]

Hi Osta,

0.003% is a very flat slope and ArcRORB normally gives you a warning when you try and export reaches with such a flat slope. When such flat slopes are input into RORB for type 2 and 3 reaches, RORB will cap the slope to be 0.05%.

RORB is supposed to still work fine but just sets the slope to be 0.05% so this error is a bit odd. Does it disappear if the flattest slope is 0.05%? If the error is still there can you upload your catg file and I will take a look.

Kind regards,

Benson

[Author]

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