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AutoYes_Clown
USA Fan
Baton Rouge, LA
Member since Oct 2012
3823 posts

re: OB Engineers: Steel Beams to Make a Bridge
You are not going to find a more economical rural/camp/farm long span bridge than a recycled railcar bridge. There is obviously fine print and details but for a 89ft, $26k installed sounds like a great price. Just the railcar and logistics/delivery is probably half of that.

You should get multiple quotes, but stick to used railcar bridge installers. Focus on the details of the install... the decking, painting, footings, etc.


34venture
LSU Fan
Buffer Zone
Member since Mar 2010
11309 posts

re: OB Engineers: Steel Beams to Make a Bridge
quote:

Down I-10 before Highland exit is a place that makes long concrete beams for bridges I’m guessing. I always wondered what they did with the off spec ones. Maybe they would sell you a couple? I met the owner a couple times, don’t remember his name, seemed like a reasonable guy.


Boykin Brothers





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60
White Bear
USA Fan
NWLA
Member since Jul 2014
5189 posts

re: OB Engineers: Steel Beams to Make a Bridge
quote:

recycled railcar bridge
Man, at 9-10ft wide that's awfully narrow esp. after a few wisky drinks. Would need some HD guard rails.


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40
cave canem
Mississippi St. Fan
pullarius dominus
Member since Oct 2012
10725 posts

re: OB Engineers: Steel Beams to Make a Bridge
quote:

From bank to bank it is about 75 feet across (and about 12-15 feet deep). I had a guy come out and quote me an 89 foot railcar bridge, installed, for $26,000.


Decide if it is worth it to you because IMHO and experience there is no cheaper long term solution.

I would also drive a few steel piles and weld to them to anchor as you will have shite soil there and lots of lateral pressure if the water ever gets high enough to reach the deck.

As you know loess will not stay put on a vertical face and washes away quickly if any turbulence is present.


baldona
Auburn Fan
Florida
Member since Feb 2016
11330 posts

re: OB Engineers: Steel Beams to Make a Bridge
How deep does the creek get? I'd explore the culvert idea, maybe move the road where it makes more sense to do.

The footbridge/ basket with a shed for an ATV is a solid idea also.


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20
upgrayedd
Lamar Fan
Lifting at Tobin's house
Member since Mar 2013
100706 posts

re: OB Engineers: Steel Beams to Make a Bridge


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28
elprez00
Houston Astros Fan
Hammond, LA
Member since Sep 2011
23962 posts

re: OB Engineers: Steel Beams to Make a Bridge
quote:

Ok. I think I know what a truss is. But I'm not entirely sure what a truss is....

With all due respect, if you don’t know what a truss is you probably have no business building a bridge yourself. I mean this isn’t a walk path over a pond. You don’t want this thing collapsing while you’re in a vehicle driving across. Death is a shitty consequence for saving a little cash.

Just looking out for ya, OP.


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73
bpinson
Ole Miss Fan
Ms
Member since May 2010
2458 posts

re: OB Engineers: Steel Beams to Make a Bridge
I'm no engineer, but I am a redneck that likes to build shite. How about a suspension bridge?. You may want to look at something with less carrying capacity that would handle a SXS and not a tractor, that should keep the cost down. In any event, good luck.


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03
eng08
LSU Fan
Member since Jan 2013
4122 posts

re: OB Engineers: Steel Beams to Make a Bridge
That was the 3rd one - acrow.

Bailey and acrow are like a million pieces - not a long term set it / forget it solution


White Bear
USA Fan
NWLA
Member since Jul 2014
5189 posts

re: OB Engineers: Steel Beams to Make a Bridge
The loggers where we used to hunt built a bridge with big red oak logs, pushed an apron/peninsula etc. out into the bayou to shorten the span. Is a navigable waterway but they Evidently dngaf. Prob 40-50 feet?


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00
TD SponsorTD Fan
USA
Member since 2001
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Cracker
Montana Fan
in a box
Member since Nov 2009
10141 posts

re: OB Engineers: Steel Beams to Make a Bridge
That’s a long way baw


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Icansee4miles
LSU Fan
Trolling the Tickfaw
Member since Jan 2007
23619 posts

re: OB Engineers: Steel Beams to Make a Bridge
That’s the standard decking used in plants. Should be pretty easy to find. I’ll ask at work.


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11
hogdaddy
LSU Fan
harvey
Member since Feb 2010
4859 posts

re: OB Engineers: Steel Beams to Make a Bridge
You could use some used dredge pipe (27") as your beams, then place wooden mats across it.




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01
yattan
Member since Nov 2013
431 posts

re: OB Engineers: Steel Beams to Make a Bridge
Was in the forestry/timber/logging industry for 43 years. Would never attempt to cross an obstacle over 50’. I preferred culverts, logs and fill first. Sweet gums were found to be the best trees for crossing a span. They are very long and straight, are slightly flexible. They make the best railroad ties because of their
Flexibility. Then we would board the span. I always wondered if creosote stadium poles would be good for a long crossing. Then board. A large stadium pole could have 20-30 feet laying on each side of the obstacle. I have no idea of the cost. Just a thought. Also some sort of cable bridge (ATV or walking only). I have seen these used for access over long/wide obstacles. Just walk.






nolaks
Member since Dec 2013
665 posts

re: OB Engineers: Steel Beams to Make a Bridge
big culvert and concrete on upstream side are your friends.


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10
Boudreaux35
BR
Member since Sep 2007
17384 posts

re: OB Engineers: Steel Beams to Make a Bridge
quote:

Boykin Brothers


I don't believe Boykin makes girders, at least not that long. They make precast concrete elements and piles, but I don't ever remember them making girders.


civiltiger07
LSU Fan
Baton Rouge
Member since Dec 2011
9694 posts

re: OB Engineers: Steel Beams to Make a Bridge
they absolutely make girders.


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20
Fratigerguy
LSU Fan
Member since Jan 2014
4282 posts

re: OB Engineers: Steel Beams to Make a Bridge
Folks, y’all are comparing a rail car bridge at 26k, and 2 flat spans on 12” WF beam to cross 75 feet. At that price point at $650 per 50’, if there is anyone around there that can cut and weld appropriately, for less than half the cost, he can make a hell of a crossing to easily span 75 feet. Quit thinking flat spans. A straight gable obviously wouldn’t work very well (depending on pitch), but he can build a modified truss using a fairly flat gambrel style shape. Using tensile strength of a 12” beam below the gambrel spanning 50’, you’d be able to make a pretty dang decent bridge. Even if he had to run 3 spans. It’s still far cheaper than the rail car.


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03
finchmeister08
Florida Fan
Member since Mar 2011
21075 posts

re: OB Engineers: Steel Beams to Make a Bridge
quote:

Ok. I think I know what a truss is. But I'm not entirely sure what a truss is....

Ever been to a Walmart and looked at the ceiling?


No Colors
Ole Miss Fan
Locker Room
Member since Sep 2010
6946 posts

re: OB Engineers: Steel Beams to Make a Bridge
quote:

been to a Walmart and looked at the ceiling?

Yes. Of course. But I'm having a hard time transferring ceiling trusses into a bridge. I remember those old school bridges I used to see on two lane roads as a kid.


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