Table of Contents
How do I read an old land survey?
How do you read land survey elevations?
The elevation is calculated by subtracting the foresight rod reading from the height of instrument. A foresight is the elevation reading of a point of unknown elevation. The rod could be moved to other points as shown in Figure 13, and similar calculations would determine the elevations of these points.
What do Survey maps show?
This type of map shows the landscape features of an area, from hills and mountains to lakes and streams. They’re typically structured in such a way that the lines and shading indicate changes in elevation, which is useful if you’re assessing uneven or hilly land.
How do you read the coordinates of a survey?
Degrees, minutes, and seconds are the units of measure for property survey bearings. For example, N 38° 03′ 09″ E would translate as 38 degrees, 3 minutes, 9 seconds from the north to the east. The boundary lines, or “legs,” are often denoted in feet and listed directly below or after the bearing.
What do the numbers mean on a survey?
Each segment will contain numbers and letters indicating the direction from North that the line proceeds as well as the distance to the next point. For example, a segment may have the notation N 15° 30′ 45″ E on one side of the line and the notation 166.25′ on the other side of the line.
What do survey colors mean?
It shows where the digging will occur. Pink indicates temporary survey markings. When a land surveyor visits to precisely draw the exact lines between adjoining properties, he or she will mark the ground in pink. This indicates the legal boundaries affecting the project. Red is the color for electrical equipment.
How do you read a metes and bounds?
A metes and bounds description, which means distance and direction, begins and ends at a landmark called the point of beginning (POB). The property is measured and described in a point of direction from a starting point using angles, distance, directions, and landmarks.
How do you read a civil drawing elevation?
Multiply the decimal part of the difference times 12 to find the number of inches. For example, 0.43 x 12 = 5.16. Ignoring the decimal part for now, that indicates that the elevation is 1 foot 5 inches above the benchmark. Multiply the decimal part of the inches value times 8 to find the number of 1/8 inches.
How do you read blueprint elevations?
Elevations show the vertical layout of the building, and there is usually one elevation drawing for each face of the building. An exterior elevation shows you what a house like if you’re standing front, next to, or behind it. An interior elevation shows the same thing, only from inside the house.
What do elevation numbers mean?
Elevation is distance above sea level. Elevations are usually measured in meters or feet. They can be shown on maps by contour lines, which connect points with the same elevation; by bands of color; or by numbers giving the exact elevations of particular points on the Earths surface.
What is a land surveyor salary?
What are the three types of land surveys?
A Look at Some of the Different Types of Land Surveys ALTA / ACSM Survey. This type of survey is typically conducted for use in the buying and selling of real estate. Boundary Survey. Construction Staking. Location Survey. Right-of-Way Survey. Topographic Survey.
What is measurement in land survey?
In Surveying all measurements are horizontal, can be inclined; reduce to horizontal and vertical components in plotting. Distance between 2 points on a plan or map is always horizontal distance irrespective of their elevation, (distance between their projection on horizontal plane).
What does R mean in surveying?
random line used in a road layout. Bearing The direction of a line between 0° and 90°, measured clockwise or. counterclockwise from north or south. Glossary of Terms Used in Boundary Surveying. Page 2.
What are the common types of notes in surveying?
Surveying field notes can be divided into four basic types: tabulations, sketches, descriptions, and combinations.
What are the two types of field notes?
Generally, there are two components of fieldnotes: descriptive information and reflective information. Descriptive information is factual data that is being recorded.
What is elevation in survey?
When the height of a point is its vertical distance above or below the surface of a reference plane* you have selected, it is called the elevation* of that point.
What do surveyors markings mean?
Survey markers, also called survey marks, survey monuments, or geodetic marks, are objects placed to mark key survey points on the Earth’s surface. They are used in geodetic and land surveying. A benchmark is a type of survey marker that indicates elevation (vertical position).
What does B l mean on a survey?
BSL – Building Setback Line.
What does FF mean on a survey?
Also referred to as FF is Finished Floor Elevation. The term FFE refers to the top of the structural slab and its elevation above sea level. FG. Finished grade. The term FG refers to the elevation above sea level for the finished grade or finished ground.
What do orange stakes mean?
Orange flags – Remember land lines? These get orange flags, as do other communication systems, such as signal or alarm lines, or TV cables. Don’t enrage your neighbor by cutting through that cable just before the big game. Blue flags – Blue means water, irrigation or slurry. Usually this is drinking water.
