Rope Bridge Help

[GhostRedwood98]

Would Sterling Tritech be a suitable rope for a rope bridge? I really like the feel of it and was wondering if more experienced climbers would be able to give me an answer.

 

[jefflovstrom]

If you like it, use it, and monitor it.
Jeff
It was a beautiful day!

 

[GhostRedwood98]

If you like it, use it, and monitor it.
Jeff
It was a beautiful day!

Thank you!

 

[pdqdl]

At $4.28 per foot, that will be a damned expensive rope bridge. I am presuming that you are talking about a pedestrian bridge where the people walk across a single line and have "hand rail" on either side. If that's not what you had in mind, you need to let us know a bit more about your bridge.

Regarding Tritech rope:

• The technora outer sheath is very well suited to the abrasion and cut resistance you would like to have in a rope bridge.
• The Dyneema core will be very strong, and have very little stretch; this is also desirable.
• I didn't find any diameter available except for 11mm, which I would consider a "do not use" thickness. That is a bit tiny to walk on, and if we are talking about the two "hand rails" of the conventional 3-rope bridge, that is a bit small for almost anyone to hang on to if their feet slip off.
• As a safety lead for attaching to a rolling attachment to an overhead line, it would be perfectly suited for that.

If I were building a rope bridge, for my weight-bearing rope I'd go with a very thick rope that will never get slick and will have a high strength rating while being rather inexpensive. 3-strand polyester rope comes to mind. It is cheap and strong, as well as being more resistant to fraying that braided ropes. Any cross-ties will be super easy to splice through the 3-strand, also.
I'd recommend 1" thick rope similar to this very highly rated rigging line:

https://www.samsonrope.com/product/pro-master-(white)​

Three strand is very easy to splice reliably, and this will improve the strength of any attachments and inspection as well.

I'd go with a pretty hefty rope for the hand rails too, but not a full 1".

​

 

[ZinTrees]

At $4.28 per foot, that will be a damned expensive rope bridge. I am presuming that you are talking about a pedestrian bridge where the people walk across a single line and have "hand rail" on either side. If that's not what you had in mind, you need to let us know a bit more about your bridge.

Regarding Tritech rope:

• The technora outer sheath is very well suited to the abrasion and cut resistance you would like to have in a rope bridge.
• The Dyneema core will be very strong, and have very little stretch; this is also desirable.
• I didn't find any diameter available except for 11mm, which I would consider a "do not use" thickness. That is a bit tiny to walk on, and if we are talking about the two "hand rails" of the conventional 3-rope bridge, that is a bit small for almost anyone to hang on to if their feet slip off.
• As a safety lead for attaching to a rolling attachment to an overhead line, it would be perfectly suited for that.

If I were building a rope bridge, for my weight-bearing rope I'd go with a very thick rope that will never get slick and will have a high strength rating while being rather inexpensive. 3-strand polyester rope comes to mind. It is cheap and strong, as well as being more resistant to fraying that braided ropes. Any cross-ties will be super easy to splice through the 3-strand, also.
I'd recommend 1" thick rope similar to this very highly rated rigging line:

https://www.samsonrope.com/product/pro-master-(white)​

Three strand is very easy to splice reliably, and this will improve the strength of any attachments and inspection as well.

I'd go with a pretty hefty rope for the hand rails too, but not a full 1".

​

I think he's asking about a rope bridge on a saddle, not to walk across

 

[pdqdl]

Ok! That's a pretty hilarious mistake on my part, eh?

With that new perspective, I'd have some reservations. That rope is rated for life support, but I don't know how well a three layer rope would hold a knot. I'm pretty sure it is impossible to splice. Sherrill sells 1 foot sections with two stiched eyes. 1 foot long might be a bit long.

https://sherrilltree.com/sterling-tritech-11mm-per-foot/

 

[ZinTrees]

Ok! That's a pretty hilarious mistake on my part, eh?

With that new perspective, I'd have some reservations. That rope is rated for life support, but I don't know how well a three layer rope would hold a knot. I'm pretty sure it is impossible to splice. Sherrill sells 1 foot sections with two stiched eyes. 1 foot long might be a bit long.

https://sherrilltree.com/sterling-tritech-11mm-per-foot/

Tritech knots fine, it's a little stiff but holds knots once they are set from my limited experience with it

I still stand by 16 strand being the end all be all tho

 

[pdqdl]

I prefer double braid for most situations, or 12-strand of most any kind, due to the ease of splicing it.

16 strand handles nicely, but that can be a bit variable according to how tightly it is wound.

 

[ZinTrees]

I prefer double braid for most situations, or 12-strand of most any kind, due to the ease of splicing it.

16 strand handles nicely, but that can be a bit variable according to how tightly it is wound.

I was speaking specifically for bridge rope, 16 strand is best, holds up way longer than anything else ive tried
for other rope I run 3,12,16,24, and 48 strand, hollow, solid, double braid and kernmantle

 

[TheJollyLogger]

Why would you splice your rope bridge? Just tie a double fishermans at each end.

 

[GhostRedwood98]

Ok! That's a pretty hilarious mistake on my part, eh?

With that new perspective, I'd have some reservations. That rope is rated for life support, but I don't know how well a three layer rope would hold a knot. I'm pretty sure it is impossible to splice. Sherrill sells 1 foot sections with two stiched eyes. 1 foot long might be a bit long.

https://sherrilltree.com/sterling-tritech-11mm-per-foot/

You're good haha thank you!

 

[gorman]

I prefer a unicore rope like platinum since the sheath wont pull out from the core of nicked.

 

[yooper]

Ok! That's a pretty hilarious mistake on my part, eh?

With that new perspective, I'd have some reservations. That rope is rated for life support, but I don't know how well a three layer rope would hold a knot. I'm pretty sure it is impossible to splice. Sherrill sells 1 foot sections with two stiched eyes. 1 foot long might be a bit long.

https://sherrilltree.com/sterling-tritech-11mm-per-foot/

I only looked at this thread because I wanted to see if the bridge was finished.