To: Chode
Look at the railroad tracks. The road has to be elevated high enough to clear the tracks, but the tracks are too close to the intersecting road to have it touch back down at the elevation of the intersection. Adding the loop ramp extends the length road to give it more horizontal distance to accommodate a gentle grade.
Alberta’s Child, P.E.
24 posted on
07/06/2019 5:32:23 PM PDT by
Alberta's Child
("Knowledge makes a man unfit to be a slave." -- Frederick Douglass)
To: Alberta's Child
Lawrenceburg Indiana built an elevated westbound U.S. 50 that looks to be steeper than what the pictured straight connector would have been.Also check out the “ramp in the sky” I-465 to east I-74 on Indianapolis southeast.
26 posted on
07/06/2019 6:30:09 PM PDT by
hoosierham
(Freedom isn't free)
To: Alberta's Child
how gentle a grade to you need in a place that never has snow or ice?
we have steeper grades than that here in the NE where we DO have snow and ice
28 posted on
07/06/2019 6:38:58 PM PDT by
Chode
(Send bachelors, and come heavily armed!)
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