Small bridge project

[LD1]

Looking good:thumbsup:

Keep us posted with pleanty of pics

 

[BoonvilleKid]

Western, ya did the right thing with a small bridge vs a culvert. One heavy rain, carrying brush, mud and debris will quickly plug a culvert. When this happens the water has no place to go except over the road. Soon the gravel is gone and the road washes away.

 

[Western]

Thanks guy's, wish we had more time to "get her done"

For this spot, a culvert actually was discussed for about 3 minutes! No real road and he doesn't want that much intrusion (Bulldozer and other equipment) and this is "WAY MORE FUNNER"!!!

 

[bindian]

I love it. A friend of mine wants me to put a bridge in my driveway and build another pond and connect it to my existing pond under the bridge. That would be so neat but a lot of work.
hugs, Brandi

 

[TripleR]

Western, ya did the right thing with a small bridge vs a culvert. One heavy rain, carrying brush, mud and debris will quickly plug a culvert. When this happens the water has no place to go except over the road. Soon the gravel is gone and the road washes away.

We put in a 36" culvert and everything goes right through. All bridges in my area are being replaced with culverts by the state and county without any issues.

 

[Western]

We put in a 36" culvert and everything goes right through. All bridges in my area are being replaced with culverts by the state and county without any issues.

Same here in my county TripleR, but usually because it's cheaper.

 

[bironacad]

uh, why didn't he just put down a small culvert? Cost would have been less than what you've got into it already with a lot less work. In the time you dug the pier holes, you could have had a culvert in, backfilled and graded. I paid $400 for a 42" x 20' steel culvert (built to state highway standards) delivered to my site. Backfill sand cost another $100 or so. And that little creek looks a lot smaller than what I was spanning.

What an take away the fun of building a bridge, lol. What are you thinking?
:thumbsup:

 

[rd_macgregor]

You might want to keep an eye on the center supports when the first big run-off comes. A debris dam can build up really fast and put a huge sideways force on a bridge as well as diverting flow against the banks and eroding them faster(known as scour).

http://www.dot.state.oh.us/Divisions/HighwayOps/Structures/bridge%20operations%20and%20maintenance/PreventiveMaintenanceManual/BPMM/streambeds/streambeds.htm
BOB

 

[dstig1]

Perhaps you have this all planned out, but why would you put a center support in the middle of the creek? It would seem far better to free-span from bank to bank. That looks like it could be asking for trouble if that stream ever floods or gets fast moving water.

I'm thinking of the Schoharie Creek bridge in Upstate NY years ago (like late 80's) where the water got fast and a bit high and took out the support pillars in the creek bed, taking down an interstate freeway bridge. It wasn't like super flood stage either, but the point is that footings in the waterway need to be carefully setup so they don't get undermined by fast moving water. Yeah you aren't building an interstate bridge, but the problem could be the same...
Schoharie Creek Bridge collapse - Wikipedia, the free encyclopedia

It just doesn't seem worth the risk to me, especially for a short span.

 

[Western]

Thanks for you comment guy's.

Debris will be a maintenance issue for sure, So debris removal will be expected on occasion. This creek is dry 90% of the time, but can get up after heavy rains. I think if it was a constant flow of water with the hydraulic action continually working against the bridge, it would be worse.
The few times a year he will use this to drive his tractor over, will give ample time to inspect and deal with any issues. Had we not hit rock (piers), it would have been different.