LINE F Flashcards
Property parcels are defined by:
measurements and angles.
A builder creates a what type of plan to place a building:
plot plan, site plan.
a plot plan is figured to obtain a permit and shows heights of foundation.
Subdivision plans
shows the length of property lines, AZIMUTH ANGLE OF LINES,DEGREE OF TRUE north
What do Survey plans provide:
the name of the owner
- the Legal description of the property.
- the type and setbacks of buildings on the property.
Clearing the site of tress, garbage, old frames is know as
grubbing!
What are test pits located on a site Survey for?
Test pits are determined on the site plan, will be dug full depth to determine,
- if bedrock is present, if requires drilling and blasting
- to determine water table heights,
- to determine the soil type.
they are dangerous and should not be left untenanted as it could take hours to show water table..
NG is know as
Natural grade
What is FG known as?
Finish grade known as Architect plans to raise or lower the ground’s surface.
Grade also means slope: what does 2 present slope mean
2% grade means the rate drops or rises of 2m vertically for every 100m traveled horizontally.
What is a grade stake?
A grade stake is driven into the ground with marks on all four sides to cut or fill. They are in line with grid-lines and placed far apart to allow machines though,
When Excavation how far should a dirt pile from the edge!
4 feet from edge of excavation and 2 feet from a trench
WCB Sloping requirements?
0:75:1 (3 horizontal to 4 Vertical) also allows a vertical cut up to 1.2m
Grid-lines in grading label?
Are labelled in numbers in one direction and letters in another.
OIP on Survey plan is
Iron post found
LP LEAD plug may be marked with a
a brass tack or cold chisel
For surveying when would you use a lead plug
on exposed bed rock!
Grade stakes are placed on?
Gridlines
Where is the depth of cut taken from?
The top of a grade stake!
Batter boards are placed>
at least 600mm back are placed so that the strings run across the corners of the building. high enough to place the foundation walls!
Batter boards sizes
2x4 for the parts in the grounds, 1x8 for the horizontal, 1x6 for crosser
what kind of string should be used for Batter Boards?
Nylon string line or number 16
Batter boards how to secure the sting line to the borad?
use a saw kerf
Batter boards what do use in large projects to layout
theodolite
The theodolite is an instrument that can measure both horizontal and vertical angles, which allows surveyors to “triangulate” the position of objects in a …
Whats the best way to check if building lines are square?
check all four sides and both diagonals
Where are Iron pin place?
Below grade!
24” 600mm long and one end 1/2 square
always check the subdivision or survey plans for location.
Iron pin will often have a __________near
a wooden marker labled IP for Iron Pin
OLP indicates
Lead plug found
LP indicates
Lead plug in place
Corner Stake
38mmx 38mm it will have a nail driven into the top to provide precise intersection of building lines
They are used by surveyors when hired to pin building corners to that footing, and foundation walls can be layout.
When to use witness stakes?
When there is an object like a big tree and is set back from the surveys lines;. W.S> on the site plans
Datum point ?
Made of brass and set permanently and referenced to mean sea level. Canadian Geodetic survey and GeoBC
Do determined gading ?
Total fall / length= grade
Total fall / grade = length
Length x grade = total fall
What is Sloughing?
Sides caving in to form slope.
A hub is considered?
A non-permanet marker
Corner stakes are wooden, and are used where?
Building location s
