We are going to the property today with a post pounder, posts, stakes, ribbon, string, 300' tape measure and the laser to lay out the house. I don't have a good benchmark within reach, but I have an old proposed development of the property with topographical lines on it, and one of them goes right through the corner where I do have a survey marker. I'd wager I will have elevation plus/minus a foot.
Per the conversation with the inspector, I will raise the finished floor up and place the excavation spoils around the upper yard area. This will improve our views and also the daylight basement lookout.
I'll mark the finish floor (FF) elevation on the stakes with some tape, and then set the beam to match that floor level. Then I can directly read my cuts and fills on the rod. I can figure out the daylight point for the footing drain, and the outer end of an ADA ramp to the basement. The ground falls away while that ramp goes up at 1:12 slope so I am hoping it is not too long.
Basement is FF -9, footing drain and footings are FF -9.87
I will also mark for locate with the white paint and call for locate on the whole property. There is an underground power main along the whole south property line I want to pin down. When we bring the power up to our transformer pad, we will dig right next to that main per the PUD. The water main is easy to see with a cluster of valve boxes. PUD will allow our water service to go in the same ditch after I backfill 18". That puts our service right at 24" and the frost level is 12"
I always toss an extra pipe in the ditch because the $200 spent is cheap insurance. I will also toss in two conduits, one for an ISP and the other for my gate.
There is a nearby manhole, I will pump to that main with our sewer. I have not found an as-built for that or I would have a great elevation reference.
I had the sewer guys pull the lid and get me an invert of 47" below rim, so I have what I need to calculate my pump and line.
I will come home and get the site plan drawn up. One step closer!