Fir zip-line

Reg

Branched out member
Location
Victoria, BC
This job was undersold by the company I was working with. The proprietor had given a cheap price because it was supposedly a friend who didn’t want to pay but didn’t want any damage either. Our task was just to put the tree down without damaging anything, just the two of us.

Tree was about 130 ft and had been topped 25+ years ago by a local logger....who as it turns out sent the top straight through the neighbour’s kitchen. The owner didn’t volunteer that info though, insisting the trees had never been touched....and continued to play the job down and that we ought to be done in a couple of hours. Yeah whatever.

The zip line was the ticket. A single line tensioned at the base of the tree, up through a block and then terminated at the landing out yonder. No haul-back/control line. I had 3 loop slings that I would rig to 3 limbs at a time. We would leave each limb still attached at the landing so it would re-tension the line for the next limb....only untying after all 3 were down.

A little trickier nearer the top as the line angle got steeper and there was a high risk of the some of the limbs sweeping and breaking stuff out of the adjacent fir where they had grown through, around and above....which would have landed on the roof. So I had to be patient and re-direct the line a little higher and cut the limbs a little shorter.

The top still had a lean-back but was now sufficiently clear of the adjacent tree and I’d done as much as was practical in shifting the favour. We pre-loaded the top 50ft with the 5:1 and then further took aim with a pocket full wedges and axe. The 5:1 was un-manned at this point because being only two of us there is always a risk of somebody appearing from nowhere walking around the corner and into the kill zone....and the 5:1 was so far away to get a good angle that Scott would’ve been totally blind to what was happening.

Anyway, it straightened up as soon as the back-cut neared the finish-line and then stalled a little, so rather than cut any more I took the time to tap in the wedges before edging further towards the notch....away she went, jumped 15 ft and landed perfectly flat.

A lot of messing around setting up as it was pretty rough terrain at the far end of the rigging, but worth it to leave absolutely no doubt about the outcome. Photos are a poor because it was a damp gloomy day. Scott is the faller right at the end. Be a few minutes embeding the photos.
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Very nice work, RC. I guess they wanted tree down because it was coming into the living room?

Dumping that top so close to the building had to be quite exhilarating.

Glad you didn't have to clean that mess up.
 
Yeah, big tree, great looking job, Reggy. Scoot threaded the needle with that drop, too.
 
Thanks again

[ QUOTE ]
Very cool!

Any particular reason you didn't opt to leave the limbs on the side of the tree/top in the direction of the fall?

-mike

[/ QUOTE ]

Mike I left as much as I could, any more would've messed up the zip-line for getting the back limbs off.

Here's a short clip of the top falling:

http://www.youtube.com/watch?v=9Y8eHSH0jas
 
Very nice! I often hear horror stories of trunks splitting when dropping large tops. I have never witnessed it and have taken some good sized pieces but when would you start to become concerned? Only in situations with lean toward the lay?
 
[ QUOTE ]
Very nice! I often hear horror stories of trunks splitting when dropping large tops. I have never witnessed it and have taken some good sized pieces but when would you start to become concerned? Only in situations with lean toward the lay?

[/ QUOTE ]

I think it would have to be a big headlean and poor cutting, or wood than included a new or old spit.
 
Not to de-rail topic too much, but

Reg - what have you thought of our Firs that have been topped 25+ years ago? I have been up some badly attached stems - after climbing up past the 'old cut'. Scary to rig off those trunks...

Sometimes we end up 're-trimming' the new tops, bring them back down to old, rotting cut. Watch out for the raccon poop.
 
[ QUOTE ]
Not to de-rail topic too much, but

Reg - what have you thought of our Firs that have been topped 25+ years ago? I have been up some badly attached stems - after climbing up past the 'old cut'. Scary to rig off those trunks...

Sometimes we end up 're-trimming' the new tops, bring them back down to old, rotting cut. Watch out for the raccon poop.

[/ QUOTE ]

I wouldn't have thought twice about rigging from the new top on that particular tree. It had taken what appeared to be quite a sturdy and well optimised form. The smaller adjacent tree (also topped) was terrible though....wouldn't even want to climb up the new growth.

Here's a few more snippets from a wobbly one this morning while we're on topic. Tree was in decline....had to put in a little prep work to get the top going the right way. Thanks again

http://www.youtube.com/watch?v=fEMIy9b3-vQ
 

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