Preamble: This article has nothing to do with Civil 3D, but it is of a civil nature. If you’re only interested in Civil 3D and Civil 3D related blogs then go on to the next article. If, however, you have other personal interests and want to see something rather remarkable, click more.
I’ve always been taught to avoid curbs when designing a manhole layout. Nobody wants the curb to cut through a manhole lid.
Now I know on occasion you may have no choice. On other occasions…oops, the manhole is in the ground and curbs are being laid out. Uh, that manhole lid is in the way.
Ok, so stuff happens. You can deal with it in a few ways. Here is one way.
It’s relatively inexpensive and shouldn’t affect anyone adversely.
In the following example (lower right) it would seem that:
This was constructed on a Monday morning.
The inspector was sleeping in the truck.
The contractor got out of school the previous Friday and drank a 24 on each of the nights thereafter.
If you look closely you can see a few chunks taken out of that curb undoubtedly from some unwary motorist, or worse a bicycle.
This one isn’t all that bad, as it doesn’t stick out that far into the travel way. There was another one within 1km of this one (same road) that stuck out further and had many marks on it. This one was removed not long before I took these shots, so I can’t show it. It was just at the end of a curb return so any driver rounding the corner had a little surprise waiting for them.
Interestingly, all three of these manholes are all within 2km of each other in the same City. I have not seen this phenomenon anywhere else.
For the Love of Pete, and all the cyclists out there, please don’t do this.