When placed at any point where the level is to be read the value seen is the height above or below the viewer s position.
Reading a grade rod construction.
Stadia rods or staffs.
An alternative topographer s rod has the graduations numbered upwards from the base.
The cut and fill feature is typically used on new job sites that are being prepared for grading.
Use this johnson s 16 ft.
The instrument is then leveled and adjustments are made to correctly make new measurements.
This rod features easy to read measurements including inches feet and metric graduations for your convenience.
A normal levelling rod can be used for stadia measures at shorter distances up to about 125 m.
A builder s rod for example is marked the same way as a tape measure with tick marks for feet inches and inch fractions.
Caring for a grade rod.
Learn how to read a leveling rod marked in decimal feet.
Instead of moving the rod from the turning point the instrument is moved to a new location.
Grade rods are tools used to measure a change in elevation.
It also works as a tool where rotary lasers and detectors are used in measuring elevations.
For longer distances special stadia rods are better suited.
The site is balanced by moving dirt from high areas and placing it in low areas according to the engineer s construction plans.
A direct reading from the grade rod is used to determine the elevation of the turning point.