We have been requested to mark about 100 lot corners which fall near the back the concrete walk in a housing development. The walk was supposed to be set 6" away from the front lot line to facilated rebar and caps at the lot corner. The city wants chisled crosses set.
What tool(s) are good to use for this. We have previously used an old tally pin or awl, but looking for something easier and/or quicker. Thanks.
I would use an angle grinder with a good blade.
Also use a power inverter on your truck, will be easier than a generator.
Perhaps a handheld grinding wheel with a properly-sized wheel to make each of the two cuts nearly identical and relatively flat. I would be prone to add something distinctive into a hole in the center of the cross, perhaps a 60d nail set in a 1/4" drill hole with a touch of orange paint on the nail head. The paint wouldn't last for an extended period, but, it would help draw attention to the location of the crosses just long enough to get people to notice their existence.
If the walk was set 6" away from the lot line "to facilitate rebar", what are you going to set a cross in?
the grass!
As mentioned, the walk was "supposed to be" six inches away, according to the typical street section. But as usual, the people who built the sidewalk measured from the back of curb a distance 6" longer than plan, as they don't read, can't read, don't have plans, etc.
It's a plat that was started by another, now defunct, surveying company.
Ditto on the angle grinder or cut off grinder. Get a cordless 4 1/2" one. They make real nice clean cross cuts in about 30 seconds with little effort.
> We have been requested to mark about 100 lot corners which fall near the back the concrete walk in a housing development.
> The city wants chisled crosses set.
That would be nice, we would have to drill and set concrete mons. (Maybe we would be allowed for offsets.
http://www.berntsen.com/Go-Shopping/Surveying/Concrete-Survey-Markers/BP-Series-Markers-for-Concrete
> What tool(s) are good to use for this.
As mentioned by others, the angle grinder would be your quickest, and cleanest cuts for your x.
Get a small, cordless, circular saw with a masonry blade. I've set hundreds of cross notches with one. It takes longer to stake out the point than it does to set the notch. Makita makes a good one and the craftsman isn't bad.
I just looked on Makita's website. The one I'm familiar with has been discontinued. They have a new model and it's Makita so I'm sure it's top quality.
How Much Sidewalk Do You Have To Work With?
If the sidewalk was designed to be 6" from the line and it was measured from the back of the curb instead of the front then you only have room for half of a cross. Therefore a crows foot is better.
Actually a point on line would be better, you are setting reference points for future surveyors, who are capable of figuring out that a line point is not a corner.
More durable than the sidewalk is the curb, drill holes in the curb are easily recognizable as line points and not corners.
The rear corners should all be pinned and block monuments along the front are sufficient. Points on line are merely a bonus.
I know some surveyors who will cap a corner but not a point on line.
Paul in PA
How Much Sidewalk Do You Have To Work With?
or he could punch a dimple 0.04' from the actual corner. 😛
I would be using the electric hammer drill, setting a drill hole, then painting a square with latex. You could up it to striping paint for longevity but some of my latex marks have survived 15 years.
Try one of these with a speed square.
http://www.baselineequipment.com/home/bec/page_862_443/giant_scribe.htm l">Giant Scribe]Giant Scribe
Poor Man's Cross in concrete
> Double Ditto on the angle grinder or cut off grinder.......
But, if you don't have one, or don't want to spend the money on one; you can always find an old blade from a concrete cut saw in the trash on a job site. Break it in half, nail it to a gaurd stake, lay another gaurd stake down and use it as a straight edge/guide, saw back and forth until you are tired, or deep enough to satisfy the powers that be.:-D
Easy Peasy JapaneseyB-)
Poor Man's Cross in concrete
>
> Easy Peasy JapaneseyB-)
criminy! are you allowed to even SAY that?!?!?! :-O
Use a portable drill with 1/8" dia. Masonry bit. Then drill a hole 3/4" deep, set your standard brass disc in this hole with a rivet gun. Works well, and it positively id's you as the LS. Anyone can scratch concrete .
I have a full size,cordless circular saw with a diamond blade. It makes a nice, clean cut. After I make the cuts, I take an orange paint pen, and "paint" the groves. It looks pretty slick, and the clients can quickly find the corners.
I have also used a similar scribe and speed square. It is a little more work, but works okay. I prefer the saw, it just makes a more definable mark.
Make it look like a property corner by drilling a 1/4" hole about 2" deep, place some of that lead you have obtained, I use lead that comes as a quarter inch in diameter wire, into the hole and drive a PK nail into it. Will seal the hole and be easy to find. Could counter sink the PK, or could place the PK into a stamped washer before driving. New concrete should be easy drilling with the proper tools.
jud