I am designing driveway crossing. I am putting 3 upstream and 3 downstream cross section 100 ft apart. My 100 yr flow is 2050 cfs. I am getting hydraulic jump form one cross section (Upstream of driveway) even I have not added any structure yet.
Can anyone help me here, Why is so?
I try to change manning n for some cross section but I am still getting jump and it is going around 1.5 ft high.
Thank you for help and time.