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     Glossay of surveying terms...
 
 
 
T
 

 

Thalweg:
1. An imaginary line connecting the lowest points of a valley. 2. The line connecting the lowest points of a stream's channel. 3. The surface midline of a channel.

Tie:
To locate something with the transit or other measuring device.

Tie line:
A survey line that connects a point to other surveyed lines.

Toise:
Traditional French unit of length equal to 6 old French 'pieds' or feet, or 6.4 English feet.

Top:
Slang for eleven. See railroad.

Total station:
A survey instrument that combines a theodolite and distance meter.

Township:
In the U.S. public land surveying system, an area six miles square, containing 36 sections. The townships are organized in rows and are identified with respect to a reference latitudinal baseline, for example, Township 13 North. See range.

Traverse:
1) any line surveyed across a parcel, 2) a series of such lines connecting a number of points, often used as a base for triangulation.

Trip:
Slang for triple digits, as in trip5 means 555, and 43trip7 means 43.777

Trocha:
Spanish for 'path'. In the southeast U.S. it is used for a cut or cleared survey line.

Turn:
The rodman is told to stay in place while the gun or level is moved to a new location.

 
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