Surveying the Structural Slab Relative to the Existing House
Tuesday, March 17th, 2009Two surveyors, Jason Paris and Brodie, from Dunbar and Craig were on our site this morning to verify our buiding location relative to the property lines and setbacks.
Establishing the Elevations from the Monte Sereno Benchmarks
We needed to have a licensed surveyor to verify where the structure is in the setbacks relative to the property lines. Considering that the existing structure hasn’t moved, this should have been relatively easy. After the licensed surveyor verified the position of the building and it wasn’t in the setbacks then we should receive approval to pour concrete for the new retaining walls.
Dunbar and Craig dispatched two field technicians this morning, to confirm the exact location of our existing house. Using the City of Monte Sereno benchmark system, they confirmed the location of the existing structure and then the elevation of the structural slab that we poured last week. From these points, they will verify where the structure is relative to the property lines that they had surveyed previously.
Importantly, the surveyors scored offset marks in each of the four corners of the existing structure in the structural slab. These offset marks will be used to ensure the new concrete retaining walls below grade are in the correct location and are perfectly square. We need to have concrete retaining walls that are square so the interior walls are also square.
Offset in south-west corner of the house by 3'10".
