Author
Message
FlyingBrass
Offline
Posts: 937
Feedback: 0% (0)
Posted: 2/20/2010 4:37:24 PM
[Last Edit: 2/20/2010 4:38:22 PM by FlyingBrass]
I need advice on how to build a bridge down at my deer camp over a small creek. There is an old railroad crossing there so that is the location I want to build it. Water is 5 or 6 feet deep most of the time but it will dry up in a drought or get deeper in a flood situation. A foot bridge or one for an atv would be ok to save money and time. What are your suggestions?
Edited to add, we currently just cross it in a boat and keep a rope tied across it and just pull ourselves across.
arowneragain
Jesus Saves!
Offline
Posts: 31431
Feedback: 100% (20)
Link To This Post
Posted: 2/20/2010 4:39:42 PM
[Last Edit: 2/20/2010 4:40:44 PM by arowneragain]
50 feet goes beyond 'small'.

The bridge I built a few years back over our creek was 20'. The 20' CCA poles I bought for it were BARELY long enough. 50' is beyond the realm of bubba carpentry, unless you can sink some pilings into the creek bed.



Edit: BUt if you want a cheap bridge, go to a junkyard and see if you can buy the boom off a crane or dragline - you'll need two - and use those as rails.
...But his word was in mine heart as a burning fire shut up in my bones, and I was weary with forbearing, and I could not stay...All my familiars watched for my halting...But the LORD is with me as a mighty terrible one...

Jeremiah 20 9-11
Desertrun
Member
Offline
Posts: 1166
Feedback: 0% (0)
Link To This Post
Posted: 2/20/2010 4:39:44 PM
Photos would help, lot go into bridge design and most of it does with ramps in and out and support.
And mebbe, just mebbe, you won't be alone
Some cold and fearsome night
When to live you must find your tree or wall,
And mark well your bright front sight!!
Desertrun
Member
Offline
Posts: 1167
Feedback: 0% (0)
Link To This Post
Posted: 2/20/2010 4:42:05 PM
Photos would help, lot go into bridge design and most of it does with ramps in and out and support.
And mebbe, just mebbe, you won't be alone
Some cold and fearsome night
When to live you must find your tree or wall,
And mark well your bright front sight!!
maddmatt
Offline
Posts: 47
Feedback: 0% (0)
Link To This Post
Posted: 2/20/2010 4:42:10 PM
Swinging bridge, I did one several years back as my eagle scout project.
NineLivez
ΜΟΛΩΝ ΛΑΒE
Online
Posts: 10486
Feedback: 100% (7)
Link To This Post
Posted: 2/20/2010 4:43:37 PM
A lot of people around here use an old flatbed train car with all the running gear removed.
Never apologize for being patriotic.

FUCK OBAMA, ALL THOSE WHO VOTED FOR HIM, AND HIS ARFCOM APOLOGISTS
cosmo05
Member
Offline
Posts: 1680
Feedback: 0% (0)
Link To This Post
Posted: 2/20/2010 4:48:01 PM
One of these?




Holding my position
Star_Scream
Mushroom
Online
Posts: 4646
Feedback: 100% (3)
Link To This Post
Posted: 2/20/2010 4:49:29 PM
Uhm, 50 feet isn't an easy task especially if you want ATV access.

Things to consider:
Materials, type of soil under the water, bedrock, erosion rates for the creekbed and walls, saturation rates for both of those, cost of pouring concrete to account for those two factors, and a bunch of other stuff that a civil engineer would know.


The math for the bridge is pretty easy and could be scripted into matlab for optimization and FEA pretty easily as truss structures are easy to analyze.
English Proficient
AR-TRVLR
Offline
Posts: 932
Feedback: 100% (23)
Link To This Post
Posted: 2/20/2010 4:49:41 PM
Just a FYI, it sounds like the creek may be big enough to be considered "Waters of the US" and under the jurisdiction of the US Corps of Engineers. Does it ever dry up? If no, it probably is.

A portion of the land around it may include floodplain - Doing any work within the floodplain, including building a bridge without proper permits, is bad ju-ju.

Proceed with caution.
TaylorWSO
Kool-aid
Offline
Posts: 8074
Feedback: 100% (10)
Link To This Post
Posted: 2/20/2010 4:51:35 PM
look for a old rail car, use the bottom of it. I have one on my place that's a flat bottom rail car just laid across the river.

cheap to find, usually free-expensive to move
panic and mass hysteria seem to be a marketing tool these days...
0351-ROCKETS
UNCOMMON VALOR was a COMMON VIRTUE
Offline
Posts: 496
Feedback: 100% (1)
Link To This Post
Posted: 2/20/2010 4:52:42 PM
I've seen bridges made of old crane booms. Not the telescoping kind.
All men are created equal: A Few become MARINES

dalebmartin
Offline
Posts: 13
Feedback: 0% (0)
Link To This Post
Posted: 2/20/2010 4:57:30 PM
You could buy an old 18 wheeler trailer and lay across the creek.
Leisure_Shoot
Int'l Shooter of Leisure
Offline
Posts: 10469
Feedback: 0% (0)
Link To This Post
Posted: 2/20/2010 4:57:44 PM
Fuck Obama. *

*Just covering myself, in case I forgot to post it in my reply
M4Real
Good Dog!
Offline
Posts: 3245
Feedback: 100% (2)
Link To This Post
Posted: 2/20/2010 4:58:43 PM
Just build a ramp and jump that sucker!
Welcome to my Underground. Help yourself to guns and ammo.
Leisure_Shoot
Int'l Shooter of Leisure
Offline
Posts: 10470
Feedback: 0% (0)
Link To This Post
Posted: 2/20/2010 4:58:53 PM
Here's an 80 ft option
Fuck Obama. *

*Just covering myself, in case I forgot to post it in my reply
M4Real
Good Dog!
Offline
Posts: 3246
Feedback: 100% (2)
Link To This Post
Posted: 2/20/2010 4:59:55 PM
[Last Edit: 2/20/2010 5:00:30 PM by M4Real]
Use a shipping container and then would have a covered bridge.


eta: might need two.
Welcome to my Underground. Help yourself to guns and ammo.
sprayandpray
Nite Crew Grand Inquisitor Gandolf
Offline
Posts: 10782
Feedback: 100% (1)
Link To This Post
Posted: 2/20/2010 5:00:50 PM
[Last Edit: 2/20/2010 5:02:23 PM by sprayandpray]
Originally Posted By dalebmartin:
You could buy an old 18 wheeler trailer and lay across the creek.


That would give him 18" of bank overlap on a 50 " creek (standard trailers are 53') Kinda on the skimpy side IMHO

Really would depend on how close to 50' his creek really was
Vote from the hedges, the rooftop, while giving excellent fields of fire, leaves you silhouetted and takes away some of your options on egress. Rooftops are where we look for snipers automatically -nukldragr
dog-meat
Online
Posts: 3177
Feedback: 0% (0)
Link To This Post
Posted: 2/20/2010 5:01:10 PM
50 ft is a big bridge.
Keith_J
Veteran of Reagan Era
Offline
Posts: 47769
Feedback: 100% (1)
Link To This Post
Posted: 2/20/2010 5:03:29 PM
Buy a Bailey Bridge. Surplus.
AR15.COM's Polymath

Ars sine scientia nihil est
SGB
Tallahassee
Instructor
Offline
Posts: 29235
Feedback: 100% (49)
Link To This Post
Posted: 2/20/2010 5:05:52 PM
"When basic morality and legal principle give you a green light to shoot the fucker, it's probably a good idea to shoot the fucker." - John_Wayne777
NineLivez
ΜΟΛΩΝ ΛΑΒE
Online
Posts: 10487
Feedback: 100% (7)
Link To This Post
Posted: 2/20/2010 5:11:36 PM
Originally Posted By sprayandpray:
Originally Posted By dalebmartin:
You could buy an old 18 wheeler trailer and lay across the creek.


That would give him 18" of bank overlap on a 50 " creek (standard trailers are 53') Kinda on the skimpy side IMHO

Really would depend on how close to 50' his creek really was


Standard flatbed trailers are 48'.
Never apologize for being patriotic.

FUCK OBAMA, ALL THOSE WHO VOTED FOR HIM, AND HIS ARFCOM APOLOGISTS
Road-kill
Member
Offline
Posts: 2162
Feedback: 0% (0)
Link To This Post
Posted: 2/20/2010 5:12:56 PM
I use to work for a company that made loggging road bridge.

2 or 3 WWF's with nelson studs groups, then they would bring in a load of precast concrete panels with holes in them to match up to the nelson stud groups, once the panels were places, they'd fill the holes with grout.

If the embankments were already done before the beams arrived, bridge would be having traffic in 3-4 days.
smokiexd45
Prepared American
Offline
Posts: 2768
Feedback: 100% (13)
Link To This Post
Posted: 2/20/2010 5:17:10 PM
Sleep on top of the trailer with a loaded gun or two. If someone tries to gain entry, blow a hole in the top of their head to let the stupid out....cmjohnson


..-. ..- -.-. -.-/--- -... .- -- .-
FlyingBrass
Offline
Posts: 938
Feedback: 0% (0)
Link To This Post
Posted: 2/20/2010 5:58:45 PM
OK! I'll try to actually measure the creek this week.
sprayandpray
Nite Crew Grand Inquisitor Gandolf
Offline
Posts: 10783
Feedback: 100% (1)
Link To This Post
Posted: 2/20/2010 6:00:11 PM
Originally Posted By NineLivez:
Originally Posted By sprayandpray:
Originally Posted By dalebmartin:
You could buy an old 18 wheeler trailer and lay across the creek.


That would give him 18" of bank overlap on a 50 " creek (standard trailers are 53') Kinda on the skimpy side IMHO

Really would depend on how close to 50' his creek really was


Standard flatbed trailers are 48'.


I was thinking he could go redneck historical and put up a covered bridge
Vote from the hedges, the rooftop, while giving excellent fields of fire, leaves you silhouetted and takes away some of your options on egress. Rooftops are where we look for snipers automatically -nukldragr
NineLivez
ΜΟΛΩΝ ΛΑΒE
Online
Posts: 10492
Feedback: 100% (7)
Link To This Post
Posted: 2/20/2010 6:13:49 PM
Originally Posted By sprayandpray:
Originally Posted By NineLivez:
Originally Posted By sprayandpray:
Originally Posted By dalebmartin:
You could buy an old 18 wheeler trailer and lay across the creek.


That would give him 18" of bank overlap on a 50 " creek (standard trailers are 53') Kinda on the skimpy side IMHO

Really would depend on how close to 50' his creek really was


Standard flatbed trailers are 48'.


I was thinking he could go redneck historical and put up a covered bridge


OK, that made me
Never apologize for being patriotic.

FUCK OBAMA, ALL THOSE WHO VOTED FOR HIM, AND HIS ARFCOM APOLOGISTS
CarbineDad
Beware of Pigs on the Wing
Offline
Posts: 6662
Feedback: 100% (2)
Link To This Post
Posted: 2/20/2010 6:35:00 PM
Originally Posted By Keith_J:
Buy a Bailey Bridge. Surplus.


+1 second reference to a bailey bridge I've seen today
"Remember, never take no cutoffs and hurry along as fast as you can." --- Virginia Reed

Thank you Krpind
1903pa
Offline
Posts: 643
Feedback: 100% (1)
Link To This Post
Posted: 2/20/2010 8:20:48 PM
It would be easier to make your ATV float!
VaFarmBoy
Offline
Posts: 2076
Feedback: 100% (10)
Link To This Post
Posted: 2/20/2010 8:35:00 PM
How about a number of culvert pipes laid side by side, and covered with rock?
scully
Gunslinger55
Offline
Posts: 980
Feedback: 0% (0)
Link To This Post
Posted: 2/20/2010 8:38:13 PM
Since you don't know what your doing(neither would I) videotape the whole process. That way you can offset the materials cost with your winnings from America's Funniest Video's.
I have not yet begun to fight!
snowmonkey
You can call me Papa!
Offline
Posts: 2457
Feedback: 100% (1)
Link To This Post
Posted: 2/20/2010 8:43:58 PM
stay alert, stay alive

The nine most terrifying words in the English language are, 'I'm from the government and I'm here to help.' Ronald Reagan

NRA Endowment Member
superdav
Online
Posts: 4549
Feedback: 0% (0)
Link To This Post
Posted: 2/20/2010 8:48:31 PM
old rail cars and big i-beams
hondajohn
Offline
Posts: 972
Feedback: 100% (12)
Link To This Post
Posted: 2/20/2010 9:12:38 PM
here is a way to build one using lumber not sure if you could get 50 feet but worth a shot

http://216.104.173.251/home.html
ch1966
Member
Offline
Posts: 926
Feedback: 100% (15)
Link To This Post
Posted: 2/20/2010 9:16:48 PM
Step 1: Set up a POW camp.....
Psalm 109:8
Nichonator
Member
Offline
Posts: 1494
Feedback: 100% (4)
Link To This Post
Posted: 2/20/2010 9:17:39 PM
I saw a bridge at a boy scout camp in VA in 1980. It was rope, 2x4's and plastic 30-50 gal drums. The way they set it up was so it had some play to allow for the rise and fall of the river. It was a little shaky but more than easy to cross. It would easily support 4-5 people at a time and was over 50 ft long.
WE THE PEOPLE
Specop_007
Member
Offline
Posts: 18074
Feedback: 100% (1)
Link To This Post
Posted: 2/20/2010 9:20:49 PM
I dont really think this is the type of thing you want to "backyard mechanic".
What the fuck were you going to do? Laugh the last three guys to death, funnyman?!

Ammo at a gunfight is like bubblegum in grade school: If you havent brought enough for everyone, you're in trouble. - Kharn
ScopeScar
Offline
Posts: 607
Feedback: 0% (0)
Link To This Post
Posted: 2/20/2010 9:24:16 PM
Could you get away with putting in a bunch of culvert pipes and just put in a road bed?
phlat
Member
Offline
Posts: 505
Feedback: 0% (0)
Link To This Post
Posted: 2/20/2010 9:29:14 PM
Man up....