QA

Question: How To Read A Survey Map

How do I read survey map directions?

Directly to your right (East) would be 90 degrees East of North. If you turned around you would be facing South and would be 180 degrees South of North. As you continue to turn you would face West, located 90 degrees West of North. Survey plats can also be read in reverse.

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 survey map with a compass?

Read the Compass Degree system by starting with a specific point on the compass (north, east, south or west), and then reading the number of the degrees to the next point on the compass. An example heading might be N63E.

What is the Orange underground line?

Red: Electric power lines, cables or conduit, and lighting cables. Yellow: Gas, oil, steam, petroleum, or gaseous materials. Orange: Communication, alarm or signal lines, cables or conduits, and fiber.

What does pink survey flags mean?

Pink flags – These are used as temporary survey markings. As surveyors measure, they mark their work with pink flags. Pink is also used to mark mysteries. If a utility can’t be identified, a worker will pink flag it.

What does pink survey tape mean?

Pink is strictly used by land surveying companies to state where the temporary survey markings are. The color codes for locating utilities, conduit or rebar in concrete can present slightly different colors depending on the surface. Most often used are the colors red, yellow, blue and black.

How do you read a survey map bearing?

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 B l mean on a survey?

BSL – Building Setback Line.

What are the different 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.

How do you calculate foresight and backsight?

Measure a backsight on A (for example, BS = 1.89 m). Measure on C a foresight FS = 0.72 m. Calculate HI = BS + E(A) = 1.89 m + 100 m = 101.89 m. Find the elevation of turning point C as E(C ) = HI-FS = 101.89 m – 0.72 m = 101.17 m.

What do the numbers mean on a grade stake?

Cut stakes are designated by the letter C written on the stake. The numerals following the letter C indicate the amount of ground to be cut to obtain the desired grade and are measured from the crowfoot down. Raising the elevation of the ground is known as making a fill.

What do the markings on survey stakes 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 blue tops in surveying?

Subgrade stakes (blue tops) are set to guide the grading contractor in trimming and finishing the earth subgrade after the rough grading has been completed.

How do I find my property lines online?

Yes, you can find your property lines online. Your county may have online maps for all of the real estate in your area, accessible through the official county or assessor’s website. Property lines can also be found through any online search engine on Geographical Information System (GIS) maps.

How do you read latitude and longitude on a survey map?

When outlining the coordinates of a location, the line of latitude is always given first followed by the line of longitude. Therefore, the coordinates of this location will be: 10°N latitude, 70°W longitude. The line of latitude is read as 41 degrees (41°), 24 minutes (24′), 12.2 seconds (12.2”) north.

Is there an app to find property pins?

The LandGlide mobile app provides you with easy access to parcel boundaries and national property data throughout the entire U.S., specifically designed for the mobile user who requires instant access to determine a property’s location, boundary, address, ownership information, and other characteristics while outside Feb 17, 2018.

What are red pipes for?

These color codes are applied using paint, chalk, stakes and/or flags to indicate the location and route of different underground utilities.Color Code for Marking Underground Utility Lines. Red Electric power lines, cables, conduit, and lighting cables Green Sewers and drain lines Blue Drinking water.

What is blue pipe underground?

Blue marks are for potable/drinking water. Water pipes usually have valves accessible on the ground surface along their main routes and service lines. Other colors such as purple and pink are sometimes used for unknown/unidentified underground utilities.

What utility is marked red?

electric power lines Red electric power lines, cables, conduit, and lighting cables Orange telecommunication, alarm or signal lines, cables, or conduit Yellow natural gas, oil, steam, petroleum, or other gaseous or flammable material Green sewers and drain lines Blue potable (drinkable) water.