... side of the bridge. Is that about right do you think. The slope is 120 out and 80 high. Hello Andrew, That looks about right. For staff use only, rather than public, you could maybe go a bit steeper. I have dug out this drawing of LYR signal box steps. The notes say 45 degrees (10ft x 10ft), but it's not clear if that includes the top landing. Scaling the drawing the actual staircase part is a bit steeper at about 47 degrees from the horizontal: 2_141848_570000000.png The notes there suggest a much easier angle of 24ft x 14ft for MR signal boxes. If it's down the side of an embankment it would need to match the angle of that of course, 1.5:1 as you have there, or whatever. It would need a fair-sized landing at the top, probably with a walled sideways offset to prevent members of the public falling down it. And it will need a handrail. cheers, Martin. posted: 15 Apr 2020 01:07 from: Rob Manchester ...