EddieWalker
Epic Contributor
Part of my lake design will have a cement spillway to handle the runoff during heavy rains. This could involve a million gallons of water, so it needs to be a substantial spillway that will not erode.
It will be built at the edge of my dam on virgin soil with a shallow drainage to the creek.
To handle large quantities of water, I need to make it 18 inches deep and 16 feet wide. I'm gonna add a few feet to this and build it 20 feet wide.
The sides will also be concrete, which will create an area that will be very dificult to get through when walking along the dam. It will also be impossible to drive over unless I build a bridge across it.
I want to put two I-beams across the span. My thinking is that I'll rest the ends of the beam on a concrete footing. In the center I'll fasten the I-beam to a concrete footing with some large bolts.
This should allow for expansion of the I-beams with the changes of tempatures. They will be spaced at the width of my tractor tires and decked with PT 2x6's.
My question is what sized I-beams can I use to span ten feet and support a 4,000 pound tractor? Lets say 6,000 pounds max weight for both beams combined?
Or if anybody knows the link to a page with the ratings for various sized I-beams. I can buy any size, but would prefer to not waste money buying something rediculous.
I've also read through all the previous posts on bridges without seeing anything that would work. I'm not going to do the trailer method or any other scrap material. Only new I-beams will be used.
Thanks,
Eddie
It will be built at the edge of my dam on virgin soil with a shallow drainage to the creek.
To handle large quantities of water, I need to make it 18 inches deep and 16 feet wide. I'm gonna add a few feet to this and build it 20 feet wide.
The sides will also be concrete, which will create an area that will be very dificult to get through when walking along the dam. It will also be impossible to drive over unless I build a bridge across it.
I want to put two I-beams across the span. My thinking is that I'll rest the ends of the beam on a concrete footing. In the center I'll fasten the I-beam to a concrete footing with some large bolts.
This should allow for expansion of the I-beams with the changes of tempatures. They will be spaced at the width of my tractor tires and decked with PT 2x6's.
My question is what sized I-beams can I use to span ten feet and support a 4,000 pound tractor? Lets say 6,000 pounds max weight for both beams combined?
Or if anybody knows the link to a page with the ratings for various sized I-beams. I can buy any size, but would prefer to not waste money buying something rediculous.
I've also read through all the previous posts on bridges without seeing anything that would work. I'm not going to do the trailer method or any other scrap material. Only new I-beams will be used.
Thanks,
Eddie