For culvert endwalls with wingwalls, what height do you design for? Obviously, it would not be full height of the endwall. - It seems that the culvert area does not contribute to the force behind the wall as a typical retaining wall would. Also, it seems that the wingwalls are helping to support the endwall and vice versa.
In conclusion, it seems that the endwall would be way over-designed if it was designed as a full height retaining wall?
In conclusion, it seems that the endwall would be way over-designed if it was designed as a full height retaining wall?