Hi All, I have a question. I appreciate it if someone could help me. I have a long culvert (55 m) with 2 pipes (D=1.8 m).  I wanted to know if it possible to model it as a culvert in mike 11.(As I know in some hydraulic models like Hecras the maximum length of culvert should not be more than 4 or 5 m ) Is it similar in mike 11? if so, How can I model this two pipe in mike 11?(I could n't find any information on reference manual)   
Cheers