traffic control falling trees

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excavators

we have used excavators to push over trees, the guy (sorry person) felling it knows what they are doing, the operator knows what he is doing because he is on our squad and also a cutter. similar to winching things only ever happen when the cutter signals to the operator... no sooner no later.

the other day we were felling a large hawthorne (crategus monogyna) i hung it up and the boss grabbed it with the timber grab and ripped it out. executed as planned, safely and saving a whole load of man effort.

if used safely with a team who know what they are doing i see no problem in used machines to push over a spar / tree.

it sounds like clearence has some idea of what he is doing.

as for the road situation always have someone roadside. just in case, saftey first


jamie
 
cranes

way better than craines with chains. felling a spar over tarmac, crane wood out of teh trailer to act as bearers, save the tar.
then cross cut and lift it all away

jamie
 
I don't know about canada, here is what ansi z133.1 says I'm quoting from the 2000 revision.
" 9.5.6 workers not directly involved in the removal operation shall be clear of the work area where practicable beyond the length of the tree unless a team of employees is necessary to remove a particular tree.
9.5.11. When a pull line is being used, workers not involved in removing a tree or trunk shall be clear by a minimum of one tree length, unless it is necessary to have a team of employees involved in the removal operation."
OSHA regs are generally stricter than ansi, and state OSHA regs are generally stricter than federal OSHA. The policy my crew uses is to clear the area of the public and non essential personnel in a full 360 degree radius beyond the length of the potential drop zone while making the back cut.
In your case if the holding wood was cut through and the trees went backwards into the lines, the hazard and liability would of course extend to the energized lines being brought down into the public.
I'm sure you can find just about any opinion you want on this site, but you will not know for sure unless you directly research it yourself by consulting the canadian equivalent of OSHA that is most applicable in your area.
In my opinion I'm sure you should have had flaggers stopping traffic in both directions as far out as necessary to accomadate a worst case scenario. If that was not an option then the trees should have been brought down in sections.
 
clearance...
every member of my crew and in my office(clerical duties excluded) is a virginia certified flagman for traffic control. if we do a road job we begin by gaining a dept. of transportation permit to do the work, then we rent the signs, traffic paddels,and cones from a company here which provides that service. the number of signs, types of signs and number of cones are determined by the number of lanes on the adjacent road and the speed limit. every flagman and foreman on the crew has a radio for communication. traffic is stopped far from the felling or pruning radius of the work then chipped. when it is safe we let traffic pass, then stop it again for more work, etc. this is the safest, and legal way.
im glad you came here for help, road jobs are expensive top set up, but if you are going to offer them as a service you need to do it the safest way.
 

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