What do surveyors markings mean?

Survey markers represent the legal boundaries of a person’s property. Moving markers may create land line disputes with neighbors. For example, John’s neighbor Sandy moves his northwest marker 3 feet in so she can have her fence cross his land. John may have to take Sandy to court to dispute the placement.

What are the abbreviations commonly used in surveying?

Common Abbreviations

  • BRL – Building Restriction Line.
  • BS – Back Sight.
  • BSL – Building Setback Line.
  • CIP – Capped Iron Pin.
  • CL – Center Line.
  • Con Mon F – Concrete Monument Found.
  • EBL – East Boundary Line or Eastbound Lane.
  • EIP – Existing Iron Pipe.

What is SVY21 datum?

“SVY21 datum” means a geodetic co-ordinate datum based on the WGS84 ellipsoid and a reference point known as BASE7 (located at Pillar 7 Lower Peirce Reservoir) with values fixed at — Latitude. 1° 22′

How do you read survey coordinates?

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 on a survey mean?

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 white survey markers mean?

White is often used by contractors and is a color that we are interested in because that gives us a better idea as to where the proposed digging, cutting, or construction will take place. Pink is strictly used by land surveying companies to state where the temporary survey markings are.

What does Lod mean in surveying?

Limit of disturbance: The “L O D” means the limits of disturbance of the proposed pipeline right of way. Beyond this point there should not be any trees cut or dirt moved.

What is SVY21 Singapore?

SVY21 is a Transverse Mercator projection (with a WGS84 datum) commonly used in Singapore. This mapplet will display and locate SVY21 easting, northing coordinates on Google Maps.

What do the degrees on a survey mean?

A direction that is expressed as a standard bearing is also based on a 360 degree circle but uses different points of reference. A bearing of N 60 degrees east means the direction is 60 degrees to the east of north. Likewise a bearing of S 15 degrees east means the direction is 15 degrees to the east of due south.

What does TP mean in surveying?

T-SHEET – A topographic map or chart prepared by the former Coast and Geodetic Survey, and now by the National Ocean Survey, including the manuscript copy. The topographic map is identified with a number, prefixed with the letter T, such as T-5542. As now prepared they are prefixed “TP” (topographic-photogrammetric).