CULVERT WITH DIFFERENT SLOPE

[sthsajan]

HOW CAN I DRAW A CULVERT WITH DIFFERENT SLOPE LIKE I HAVE A CULVERT HAVING 4.5% SLOPE FOR FIRST 25 FT AND NEXT 112 FT WITH 6.62% SLOPE HOW CAN I DRAW A CULVERT IN THE CULVERT EDITOR

[Anonymous]

You can draw a channel with lid to simulate a culvert.

[sthsajan]

Do I need to make two different culvert and connect them for 2 different slope or can I make one culvert with variable slope?
I tried to connect two station of different slope
I have st 544.19 to start my culvert with 4.5% slope and other 6.62% slope begins from st 519.19. I have upstream station at 550 now
I created first culvert at upstream 544.19 with upstream 550 and tried to create one more culvert at downstream of slope change at 519.19 but I am confuse what upstream distance do I need to enter (as 519.19-519.9=0 or 550-519.19=30.81 and same as width what do u need to enter. I am tried to connect two culvert for my different slope.
I tried to make 2 culvert with different slope and try to connect but the second culvert in downstream that I wanna tie with first one I am confuse in upstream distance do I need to put zero
my different in slope distance is 25ft (544.19-519.19) and remaining length is 112 ft
could you help me ?
or can I do lid in cross sextion and make different slope so that one culvert will solve my issue?

[cameron]

The lidded cross-section approach would cover multiple cross-sections so you would control the slope through it.

[sthsajan]

I have a culvert length of 137 ft
upstream culvert station 544.19 with slope 4.5% other one is change of slope st 519.19 with slope 6.62% and downstream culvert at 407.19. where should I begin my culvert at 544.19 or 519.19 or else and where should I add lid I am so confuse
which station should I add lid can I fix my invert elevation of the lid

[Anonymous]

Your lidded cross section will be the location of the actual beginning of the culvert. You will place another cross section downstream of this location that will represent the end of your first culvert. The geometry of the cross section will replicate your culvert. The last cross section will be representative of the end of your second culvert. Now add a lid to all 3 cross sections. Now interpolate your cross sections and you now have a “broken back culvert”

[Anonymous]

This means i need to draw 2 culverts i have upstream distance for the 1st culvert but what i need to enter for second culvert about upstream distance=0 since both culvert combine each otherso what i need to consider upstream for 2nd culvert

[Anonymous]

You are not understanding what a lidded cross section does at all. Hit F1 on the software and read the manual at this point

[Author]

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