Canal Construction - Solar Altitude vs. Cover Height

Then I misinterpreted the question. We were instructed that the entire construction area must be built at 478.80 meters above sea level. Because of this, I had to maintain this elevation level at the property boundary. I placed my house accordingly so that I could measure from this level (+10 cm or so). The street was only tarred afterwards, and the manhole covers were measured and set later. Builders who measured from the original manhole cover have differences of up to 20 cm, which they now notice at their garage entrance,...

The problem can also be avoided by adhering to the solar heights and introducing the water there.

Ok, admittedly - if the road is still a construction road, one cannot know the final height of the finished road to the last centimeter, but for the rough construction of the access road, the current height including the planned height is sufficient.

The finished road cannot and will not be massively above the planned height, otherwise all residents would have low-lying properties - which no one wants if it can be avoided.

Surface water must of course be able to run to the gully or into the finished rain gutter. If one fears that it will be tight, the building authority or the executing company should be consulted about what structure is to be expected on the construction road.

For the rough planning - which, according to my understanding, is the point here - the heights of the existing lids must first be verified in order to derive the planned height from them. These lid heights are also included in the building application, so that the relations from the house (top edge of finished floor) to the planned road height must also be evident there.

Regards
Dirk Grafe