MI Land Surveyor key terms

A physical marker, such as an iron bar, pipe, or stone, set or accepted at a property corner to mark its location on the ground. Where a monument conflicts with written distances, the monument usually controls.

The federal rectangular survey that divided public lands into townships, ranges, and sections, creating Michigan's original corners. Retracing surveyors must honor the original corners and the record evidence that identifies them.

A method of restoring a lost corner by distributing the record distance between found corners along the same line, keeping misclosure in proportion. It applies only when the original corner is truly lost, not simply not found.

A deed description that defines a parcel by a sequence of courses and distances between monuments, starting from a stated point and returning to close. Monuments generally outrank distances when the two disagree.

The rule that a boundary or right created first in time prevails over a later, conflicting description of the same land. Junior surveys and junior deeds must yield to the senior line.

A doctrine by which a person gains title to land through open, notorious, exclusive, hostile, and continuous possession for the statutory period. Michigan's general period for recovering land is 15 years.

A doctrine treating a long-recognized boundary as the true line when adjoining owners have treated it as such and improved to it for the statutory period, even if the deeds show a different line.

A right to use another person's land for a limited purpose, such as access, drainage, or utilities. It burdens the servient parcel without transferring ownership of the land itself.

A reference framework defining the size, shape, and position of the Earth from which coordinates are measured. Horizontal and vertical datums must match before survey positions or elevations are compared.

The North American Datum of 1983, the horizontal reference frame used for modern U.S. coordinates, including Michigan State Plane. It is earth-centered and has been refined through later realizations such as NAD83(2011).

The North American Vertical Datum of 1988, the vertical reference for orthometric heights in Michigan. Elevations referenced to it are based on a geoid model rather than on local mean sea level.

The equipotential surface of the Earth's gravity field that approximates mean sea level and serves as the zero reference for orthometric heights. Its separation from the ellipsoid converts GNSS heights into elevations.

A projected coordinate system dividing each state into zones so survey positions can be expressed in a flat, grid-based framework. Michigan uses several zones, each with its own defined map projection.

The product of a map projection scale factor and an elevation factor, used to convert ground distances to grid distances. Applying it correctly keeps State Plane coordinates and measured distances consistent.

A fixed point of known elevation, often a brass disk set in concrete or bedrock, used as a reference for leveling and construction work. Its published elevation and datum must be verified before use.

Real-time kinematic GPS/GNSS positioning, in which a base station or correction network sends updates to a rover so positions are computed in real time at centimeter-level accuracy under suitable conditions.

The field process of marking proposed locations, elevations, or alignments on the ground with stakes, hubs, or marks so construction can proceed according to the plans.

Earthwork in which soil is removed (cut) from high areas and placed (fill) in low areas to reach design grades. Balanced cut and fill minimizes hauling costs on a site.

The elevation of the finished surface, or the rate of rise or fall along a line, expressed as a percent or ratio. Construction stakes typically show grade relative to a reference elevation.

Setting stakes at the points where the design side slope intersects existing ground, usually for roadways or embankments. The stakes guide the operator in cutting or filling to the correct width and slope.

A survey performed after construction that records the actual location and elevation of improvements as built, so they can be compared with the design drawings and accepted by the owner.

A linear referencing method along a route or baseline, with stations typically 100 feet apart and written as 12+34.56. It lets plans locate features and curves by distance from a fixed starting point.

A parabolic transition between two grades that provides a smooth change in slope for vehicles, drainage, and sight distance. Its key elements include the PVC, PVI, PVT, and the high or low point.

A scaled drawing and supporting data showing a proposed subdivision's layout, lots, streets, and utilities, submitted for review before final approval. It lets agencies comment before the plan is finalized.

The precise, recordable subdivision map prepared after preliminary approval and conforming to all conditions, which is dedicated and filed with the county register of deeds. Once recorded it creates the lots of record.

Michigan's statute governing subdivision plats and land splits, setting review procedures, lot standards, and approval authority. It also defines exempt divisions and the role of the governing body.

A local law regulating land use, density, lot size, height, and setbacks within zoning districts. Surveyors and site designers must check it before laying out lots or building envelopes.

The minimum required horizontal distance between a building or improvement and a property line, street, or other feature, established by zoning. It limits where structures may be placed on a lot.

The intentional transfer of private land to public use, such as streets or parks, shown on a plat and accepted by the governing body. Dedication does not pass title until it is accepted.

An administrative grant allowing a property owner to depart from a strict zoning requirement because of unique site conditions, without changing the district's overall character. It requires a showing of hardship.

A stormwater facility that temporarily stores runoff and releases it slowly to control peak flows and protect downstream areas. It differs from a retention basin, which holds water permanently.

The stamp, signature, and date a licensed surveyor applies to maps and reports to certify that the work was performed under their responsible charge and meets applicable standards.

Michigan's administrative rules specifying the required content, accuracy, monumentation, and records for surveys, so that surveys are reliable and reproducible by others. Departures must be justified and documented.

The degree of skill and diligence that a reasonably prudent surveyor would exercise under similar circumstances. It is the benchmark used to judge negligence in professional practice.

A situation in which a surveyor's personal, financial, or other interests could improperly influence professional judgment or the objectivity of work performed for a client or the public.

Failure to exercise the standard of care owed to a client or the public, causing harm or loss. A typical claim requires a duty, a breach of that duty, causation, and damages.

Required professional development hours that licensees complete during each renewal cycle to maintain licensure and stay current with laws, technology, and practice. Michigan sets the hours and subject requirements.

A document, often a map with a written report, prepared by a licensed surveyor describing the results of a survey, including monuments found, boundaries, and any discrepancies or qualifications.