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A propane truck drove through my bridge. Am looking to
A propane truck drove through my bridge. Am looking to replace it but need to be sure the replacement can hold the new and likely full truck. The span is about 30 feet but we are thinking of using steel or aluminum to prebuild the bridge and then deck it on site. Will likely exceed the creek banks so probably 40 foot across. Can you tell me what we need for size of beams/stringers? … read more
walkereng
walkereng
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Bachelor's Degree
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Loft to cabin. Trying to figure out size of bean to use and
Loft to cabin. Trying to figure out size of bean to use and material. No support other then end walls. 20' wide (beam) with 10' joists going back to back wall. I was told 3 20' 12×2s glued and screwed… read more
PaulP324
PaulP324
consulting engineer
MS
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I'm building a small arched bridge over my swimming pool for
I'm building a small arched bridge over my swimming pool for my daughters wedding. The bridge will be four feet wide and 16' long. I want the arch to be about 36" high in the middle. I need to know th… read more
StructuralEng
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I'm wanting a walk bridge across my creek. I want 2-25ft,
I'm wanting a walk bridge across my creek. I want 2-25ft, I-Beams, with a 3 1/2' span=42" wide. with 2x3 angle iron supports ever 2ft. … read more
StructuralEng
StructuralEng
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Two 20 foot W12x26, cantilevered 15' over water 12 feet
Two 20 foot W12x26, cantilevered 15' over water 12 feet apart with 2x6 treated planks At the land end about 6ft from bulkhead and 3'-6" below grade, concrete pad 5'x5'x3' deep supporting uplift forceB… read more
StructuralEng
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Requesting Structural Engineer: Calculating if size of
Requesting Structural Engineer: Calculating if size of footing is adequate Two 20 foot W14x26 cantilevered 15' over water 5 feet apart with 2x6 treated planks At the land end about 6ft in, Two 30" hig… read more
StructuralEng
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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 build a 20' bridge 7' wide that will support
Hi I want to build a 20' bridge 7' wide that will support 4000lbs (horse and rider, ATV's, and ideally small tractor with implement). Hoping to use 2x12x20' #2 fir to make the span as they are readily… read more
StructuralEng
StructuralEng
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I need to build a 4 ft wide by 20ft walk way over water. I
I need to build a 4 ft wide by 20ft long walk way over water. I was looking at either 6 - 2 x8 x 20ft boards or 4 - 2x12x20 boards with 4x8 plywood attached on top with cross beams underneath every 3 … read more
walkereng
walkereng
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I have a question. I have a home in Scottsdale Az, obviously
Hello, I have a question. I have a home in Scottsdale Az, obviously we have no snow, weight issues. My question is the living room, dining room, and kitchen are separated by interior walls. We want to… read more
StructuralEng
StructuralEng
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I am building a atv bridge. Needs to support ~750lb. It
I am building a atv bridge. Needs to support ~750lb. It spans 18' feet. Will 2 beams of 3 ply 2x10's work? … read more
StructuralEng
StructuralEng
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What size of I beams are required to support roughly 1000
What size of I beams are required to support roughly 1000 pounds on a walking bridge spanning 27 feet?… read more
walkereng
walkereng
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Live and Dead Bearing foot span of triple 2x12 PT lumber Building
Live and Dead Bearing for 24 foot span of triple 2x12 PT lumber Building foot bridge to span 24 feet and using 3 sets of these triple 2x12 beams to form a four foot wide base of the bridge.… read more
StructuralEng
StructuralEng
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Have five GL beams 50'. they are 9.25" wide and 36" deep>
Have five GL beams 50' long. they are 9.25" wide and 36" deep> Want to use them for a car bridge. The bridge will be 50' long and 18' wide. How much weight can this bridge handle at the middle of t… read more
StructuralEng
StructuralEng
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Need to build a 2 walking bridges across a creek span of 42
need to build a 2 walking bridges across a creek span of 42 feet for one and a span of 31 feet for the other. Thinking of using steel I beams, and building wood bridge on top. Need to know size of ste… read more
walkereng
walkereng
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Same project - different materials. Can you tell me how much
Same project - different materials. Can you tell me how much weight beams made of fir (salvaged from a state bridge) measuring 22" x 8" spanning the same creek (20') can carry installed both verticall… read more
StructuralEng
StructuralEng
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I need to build a 20 foot bridge that will support a maximum
I need to build a 20 foot bridge that will support a maximum of 15,000 lbs (dump truck). What size and how many I beams would I need for this?… read more
walkereng
walkereng
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I constructed a table that is 4 feet high 3 feet wide and 8
I constructed a table that is 4 feet high 3 feet wide and 8 feet long. I used 4x4 pressure treated lumber for legs, 3 four foot high legs on each side. Atop each set of 3 legs i attached a 4x4x8 lengt… read more
walkereng
walkereng
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Bachelor's Degree
4,728 satisfied customers
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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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