HOW CAN I ADD 25 FT NEW CULVERT IN EXISTING CULVERT WITH DIFFERENT SLOPE

[sthsajan]

HOW CAN I ADD 25FT NEW CULVERT UPSTREAM WITH 6% AND EXISTING SLOPE WITH CULVERT IS 10%.
ALL TOGHTHER LENGTH IS 137 FT
I HAVE ALREADY DRAWN EXISTING CULVERT BUT I AM CONFUSE HOW TO CONNECT OLD CULVERT WITH NEW ONE AND RUN STEADY FLOW ANALYSIS

[Anonymous]

With this many posts on cross sections with lids, i would just go to Hy-8 and construct a broken back.

[sthsajan]

I created one with the hec ras with lidded cross section
it looks like this but I got a problem that my 100 yr energy grade line over top the culvert
could you please get some help?order=”0″/>

could you help me how to adjust my energy grade line and how can I fix the wall of lidded cross section
do I need to add the influence area flow in the lidded cross section

[Author]

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