I was asked a question that I??ve only been asked one other time in my career. ??What does the C mean on that grade stake?? from the onsite contact person for the construction company. I have no words??
Me. "What's the difference?"
T.C. Carroll "It's the difference between right and wrong!"
Cut and F would be for Fill.?ÿ
Wow. Was staking site grading and hardscape a few years ago on a $46 million public works project. The junior partner in the excavation company, a civil engineering grad, walked up and asked, "Hey, what does PC mean on these stakes?".?ÿJust...WHAT?!!
Once had an engineer, a PE of near retirement age, insist that the invert of a pipe referred to the top.
many years ago in Mass. I had a big argument with an engineer over whether the bends in the contours were a ridge or a valley. He said "when they turn to the right it's a ridge, when they turn to the left it's?ÿa valley"
More recently I was grading stakes knowing that no one would pay attention anyway. A machine operator climbed down, walked over and asked me to explain what the marks on the stakes were for. I was impressed.
Another time I put blue flags on the property line stakes and red flags on the driveway stakes for about 250 feet of driveway. I made a nice sketch and gave it to the excavator. A week later I pass by and stop to find out that the excavator was fired, the new operator didn't get the sketch, ignored all my stakes, made a nice driveway and miraculously got it all on the right property.
We would simply put numbers on a stake and mark a line under the numbers for "Fill" and over the numbers for "Cut".
Once had an engineer, a PE of near retirement age, insist that the invert of a pipe referred to the top.
I can show show you recorded description after description where the area is wrong by a factor ?ÿof two because a surveyor who practiced from the 50's until the 70's didn't know what the "doubled" part meant when computing area by double meridian distance. ?ÿ?ÿ
These past couple of years it seems that the construction industry has been hard pressed for warm bodies and those in supervisory position are no exception. People are being promoted before they are ready because they have to be. I have learned that even they look the part, or talk the part, that is no guarantee that they know the job.?ÿ
Once had an engineer, a PE of near retirement age, insist that the invert of a pipe referred to the top.
The OBvert is the top (inside).
These past couple of years it seems that the construction industry has been hard pressed for warm bodies and those in supervisory position are no exception. People are being promoted before they are ready because they have to be. I have learned that even they look the part, or talk the part, that is no guarantee that they know the job.?ÿ
Yep, we're in the "dance until the music stops" portion of the party.
The OBvert is the top (inside).
I did not know that, until now.?ÿ
Obvert is a verb.
I've always called the inside top the soffit, the flow line the invert, and the horizontal line through the center the spring line.
Is this a regional thing?
Obvert is a verb.
I've always called the inside top the soffit, the flow line the invert, and the horizontal line through the center the spring line.
Is this a regional thing?
Here http://www.pskf.ca/publications/c-glossary.html and here https://en.wikipedia.org/wiki/Invert_level, but not here https://en.oxforddictionaries.com/definition/obvert.
?
Was taught that an invert was getting a reading when the level or prism rod was being held upside down.
Was taught that an invert was getting a reading when the level or prism rod was being held upside down.
You had to be careful shooting?ÿinverts with an inverted image alidade. ?ÿKind of like adding two negative numbers. ?ÿ
Obvert is a verb.
I've always called the inside top the soffit, the flow line the invert, and the horizontal line through the center the spring line.
Is this a regional thing?
Yeah it's just a word I picked up somewhere and liked. I can't imagine when I would need to use it. Crown , invert and soffit much more common.
Extrados and intrados, there's another couple that can make it sound like you're an old school expert!
?ÿ
Was taught that an invert was getting a reading when the level or prism rod was being held upside down.
That would be an inverse level
I remember being a straight-up, uncrusted grunt and asking the PC why he kept righting 'high' (HI) in his notes.
That said, top of the pipe has always been the 'crown' in my world.