Building a bridge?

[3Ts]

Well I doubt the creek has 60 feet fall but it’s probably way more than 10 gpm. You’d probably need a battery or so other storage device. Does anyone know how much power it would take on a continuous generating cycle to power a house?

That depends on a lot of factors. There are folks on here that use generators from 7.5 KW to the 22KW Generac. What will you be running?

 

[4570Man]

That depends on a lot of factors. There are folks on here that use generators from 7.5 KW to the 22KW Generac. What will you be running?

I was referring to a hydroelectric generator which I unfortunately don’t have a creek anywhere close to big enough to use one. The backup generator has to be big enough to handle the biggest load on demand. The hydroelectric generator or really any generator could be much smaller running 24/7 and using a fairly large battery.

 

[bcp]

You might find precast box culverts in your area. Some have bottoms and others sit on slabs.

Bruce

 

[radios1]

You'll need about a 10 gal/min flow rate with about a 60 foot fall to generate 1Kw of electric power.
hydroelectricity power and energy calculator - free online

that 60 ft. fall would be the source of the water to the point of use in the case of a screw type generator. there is a blacksmith in upeer New York who makes his electric in this way, I didn't find the link, but he makes a very good amount of electric with that generator!..

 

[ovrszd]

Use steel stringers so the bridge will be there after you are gone. Rather than being non useable while you are here.

 

[Jstpssng]

You might find precast box culverts in your area. Some have bottoms and others sit on slabs.

View attachment 630560


Bruce

I priced one of those to replace a four foot culvert, the estimate a little more than $18000.

 

[bcp]

I priced one of those to replace a four foot culvert, the estimate a little more than $18000.

They must be priced for Gov't buyers using taxpayer money.

Bruce

 

[Jstpssng]

No, concrete isn't cheap. That's what it costs by the time you buy, have it trucked, and excavator to dig the ditch.

 

[KennyG]

If you are using timber forget the 4x6. You want a deep section. 2x8, 2x10 etc.

 

[ovrszd]

I priced one of those to replace a four foot culvert, the estimate a little more than $18000.

4' dual wall plastic culvert is $42 per foot governmental cost here is Missouri. The cost of larger culverts is extremely high.

 

[denchen]

Depending on maximum flow, what about some 45 gallon drums, cut tops and bottoms out. Place end to end, cover with a layer of concrete, then back fill with soil.

 

[BoneDigger]

Would an old trailer frame work? I see these on FB market locally for $500 or so. I think they are old mobile home frames?

 

[ovrszd]

I cross bridges often with heavy equipment. If you are going to take the time to build a bridge, build a strong one, that will last decades.

A mobile home frame depends on the wall/roof structure to gain strength. Once you remove all that they get pretty wiggly.

 

[BoneDigger]

This is my little creek. I wonder if it would be best to just cut down the banks and make a crossing that way.

 

[Citydude]

This is my little creek. I wonder if it would be best to just cut down the banks and make a crossing that way.View attachment 630707

That's what I would do if just to cross with a tractor or Ranger. Throw a couple of double wall plastic culverts in the bottom for water flow.

 

[radios1]

I cross bridges often with heavy equipment. If you are going to take the time to build a bridge, build a strong one, that will last decades.

A mobile home frame depends on the wall/roof structure to gain strength. Once you remove all that they get pretty wiggly.





View attachment 630706

that creek is dry. why not just fill it in??..

 

[Diggin It]

I've seen bone dry cricks get real wet, real quick.

 

[Jstpssng]

This is my little creek. I wonder if it would be best to just cut down the banks and make a crossing that way.View attachment 630707

If you only plan to cross a couple of times that would work. If you plan to use it on a regular basis in all kinds of weather it will get messy; and in the long run it's better to do it right. The better crossing seems to be about 2/3 of the way up your picture, although it isn't where your trail is. The banks are higher while the channel is narrower.

4' dual wall plastic culvert is $42 per foot governmental cost here is Missouri. The cost of larger culverts is extremely high.

I was replying to a suggestion of concrete. I believe that the 18' bridge I was quoted for was a bit of overkill though. I probably will have a small bridge with a 6'span built on concrete waste blocks, as it's a major access road and will be used for longer than I'm around. I also have some short bridge steel which came out of another crossing a few miles away which will keep the cost down.

Now we have seen some pictures of his crossing, so know more about what he's trying to accomplish.

 

[lilranch2001]

I paid $750 (including 7% taxes) last spring for my 4' dual wall plastic culvert 20 foot long

 

[bcp]

A concrete ford doesn't have to be at current creek-bottom level. It can have its downstream edge above that and make a nice waterfall onto large rocks. This lowers the approach angle.



Of add a culvert for low water and a concrete ford for high water.



Bruce