Slope (H:V)
|
Embankment Height
| |
---|---|---|
2 to 1
|
6 feet
| |
3 to 1 or flatter
|
Guiderail not required
|
It is also assumed in the above geometrical
consideration that the toe of slope conditions are such that no abrupt
dropoffs or adverse slopes forming "V" ditches will be encountered.
|
Culvert headwalls.
| |
Along bodies of water over two feet deep.
| |
Rock cuts and rock outcrops.
| |
Retaining walls.
| |
Any other immovable object as determined by
the Highway Superintendent.
|