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What size w beam do I need for an 8' wide bridge 36'.
What size w beam do I need for an 8' wide bridge 36'. Probably going to use 2x12 pressure treated lumber for decking? … read more
walkereng
walkereng
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I am building a small bridge across a creek, for personal
I am building a small bridge across a creek, for personal use to get my truck and tractor across the creek. I plan to pin both ends of parallel (70 inches apart) beams. What size steel W beams will be… read more
walkereng
walkereng
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I am trying to find the load on a 12" tall x 8' wide
I am trying to find the load on a 12" tall x 8' wide x19'6''long sp. an supported on each end with 4wide flange beams separated on a bridge structure approx. 4 ' apart. Can you help me with what load … read more
walkereng
walkereng
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Trying to replace a bridge at the local golf course washed
Trying to replace a bridge at the local golf course washed away in massive flooding. 16' span, 10' wide, old one was 2 x 8 x 16 on 12" centers.… read more
StructuralEng
StructuralEng
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I NEED TO BUILD A BEAM BRIDGE ACROSS A SMALL (2" WIDE CREEK)
I NEED TO BUILD A BEAM BRIDGE ACROSS A SMALL (2" WIDE CREEK) THE DISTANCE NEEDS TO BE 14 - 16 FEET IN ORDER TO GET ONTO SOLID GROUND ABOVE ANY POSSIBLE FLOOD STAGE. I NEED TO BE ABLE TO DRIVE MY 2700 … read more
Shannon Galway
Shannon Galway
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Bachelor's Degree
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I want to build a lightweight bridge that's 60 feet 7 ft
I want to build a lightweight bridge that's 60 feet long 7 ft wide over a shallow River. I need to join 3 20-foot 12 inch wide flange I beams (40 pounds per linear foot) together. There would be two I… read more
StructuralEng
StructuralEng
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I want to know the steel beam size and spacing to build a
Hello, I want to know the steel beam size and spacing to build a bridge over a 30' crossing. This will be private, sporadic use, for trucks and tractors, max weight 20,000 lbs, would like a 2” thick w… read more
walkereng
walkereng
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I'm needing to build a vehicular bridge over a creek. I'm
I'm needing to build a vehicular bridge over a creek. I'm wondering what size W flange steel beams I'd need for a loaded cement truck and what type of decking material is recommended for that as well … read more
StructuralEng
StructuralEng
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I have a bridge with 3 - 25' x 8" tall and 8" wide I beams,
I have a bridge with 3 - 25' x 8" tall and 8" wide I beams, it also has 4 - 10' x 7" channel iron welded from each corner to the center. The existing beams are actually rusted through to the point of … read more
StructuralEng
StructuralEng
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I have 3 w24x84 I beams that are 39 feet that I plan to use
I have 3 w24x84 I beams that are 39 feet long that I plan to use to build a bridge. How much weight will they hold?… read more
StructuralEng
StructuralEng
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Id like to build a 7 wide, 20 span bridge over a seasonal
I'd like to build a 7' wide, 20' span bridge over a seasonal creek bed. The top deck will be 4 x 8 redwood planks. I'd like to use three (or four if needed?) minimum height steel I beam girders. Can y… read more
walkereng
walkereng
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Bachelor's Degree
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My bridge was washed out in the recent Colorado floods. I have
My bridge was washed out in the recent Colorado floods. I have a gorge that is about 25 feet wide that I need to span. I would like to build a 10' wide bridge using 3 H-beams (one on each edge and one… read more
walkereng
walkereng
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Inquiring about total load capacity of bridge 14 wide and
Inquiring about total load capacity of bridge 14' wide and 27' span: Following dimensions of steel i-beams: height 15" flang 6" flang thickness 5/8" center steel thickness .55" Spacing of beams: ( eac… read more
StructuralEng
StructuralEng
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Bachelor's Degree
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I need to span a 35 foot length with a lightweigh alluminum
I need to span a 35 foot length with a lightweigh alluminum beam and need to know what size to get to support 2500 lbs in the middle. Can you help. I see a calculation done with 4 inch beam, but am th… read more
StructuralEng
StructuralEng
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Hello, now we would like to know if we can use channel carbon
Hello, now we would like to know if we can use channel carbon steel to cap the 6x10x15 beam; supported by (and welded to)the welded iron trees -- instead of the 8x12x15 southern pine no 2 pressure tre… read more
StructuralEng
StructuralEng
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I need to build a bridge over a 50 ft span with 2 beams. The
I need to build a bridge over a 50 ft span with 2 beams. The beams are 18 inch tall 11 inch wide and 72 pounds per foot what is the approximate weight limit… read more
StructuralEng
StructuralEng
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Bachelor's Degree
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I am building a bridge with a 60 span. The stringers will
I am building a bridge with a 60' span. The stringers will be spaced 7' apart o.c. I am using 2 W21X50 wide flange beams for stringers. I am going to put 3"x3"x3/8" cross bracing every 15'. Do I need … read more
StructuralEng
StructuralEng
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hello I am spaning a ditch 40 feet and am going to use 6 I
hello I am spaning a ditch 40 feet and am going to use 6 I beams 14 inches tall by 8 inches wide, center rib is half inch. will it carry the weight of semi traffic. this for my home, xxxxx… read more
walkereng
walkereng
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Bachelor's Degree
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vgdlpc

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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