Steep Slope?

pattyson

Is 50% slope too steep to cut a pad on? Its 26.6 deg. I think. How would you go about doing it?

toolaholic

you start with a soils report from your soils eng. than the struct eng designs
peirs and grade beams. than you hire ME got lots of $$$$$$$$?

i'm doing one in tiberon ca. right now in the bloody rain.

the doc. says" how long will it take ,and how much will it cost?"

I say " i'll let you know at the end of the job

jmic

Pat,
Seems to me a 50% slope would be 22.5 degrees, but anyway you slice it thats one steep lot!
Joe

PipeGuy

make sure to budget for structural retaining walls

pattyson

22.5 deg? I got this slope conversion chart from DOT fed. highway admin. it says 26.6' deg. for 50% the whole slope % thing throws me. like it says 10% = 5.7 deg. anyone got an explanation of slope %?
pattyson

jmic

Pat,
Here's how I figure it. When I hear percentage I think of a hundred. Therefore 1 hundred feet out and 1 hundred feet up creating a right triangle = 45 degrees , therefore 1 hundred feet out and 50 feet up right triangle =22.5 degrees. Just using a hundred to show my point. Right or wrong I've always done it this way and never had any problems. You have to remember you're working with dirt here and not cutting miters for crown molding . You don't have to split hairs. Unless you're building a high way coast to coast starting at each end guess it would be nice to meet at the same place mid point. But working an individual lot whats your point? If you're doing any kind of pipe or drainage work you set the laser for the appropriate % and follow the beam you don't even deal with degrees. But hey I do believe you can teach an ol' dog new tricks, keep me posted.
Joe

pattyson

Thanks Joe, I understand it now. In my head 100% slope should = 90 deg. but with your explaination I see that the 90 deg is constant and the 45 deg is 100%. so i guess a cliff is 200%. ok i can picture it in my head clearer now. well the lot is snowed in till spring. Its a family members, he's a devopler but I think he will give a newbie like me a chance at it.
dave

jmic

Houston we have a problem!

PipeGuy

Ya' think?

Blackhawk

jmic is right pattyson... on both answers