An imaginary line on the surface of the earth connecting points of the same elevation.

Line on a map which represents a contour or points of equal elevation

A constitutional officer of the county, elected to a 4-year term from the county at large. Primary duties of the surveyor includes maintaining annexation descriptions, legal survey book, and section corner record book. The surveyor is also an ex-officio member of the County Drainage Board and the technical authority on the construction, reconstruction, and maintenance of all regulated drains or proposed regulated drains in the county. Other major responsibilities of the surveyor includes administering filter strip programs, membership in the County Plan Commission, and certification to the Indiana Alcoholic Beverage Commission

A graph or plot of ground elevation across a stream valley or a portion of it, usually along a line perpendicular to the stream or direction of flow.

A closed conduit used for the conveyance of surface drainage water under a roadway, railroad, canal, or other impediment

The process of earth grading by excavating part of a higher area and using the excavated material for fill to raise the surface of an adjacent lower area

Land immediately adjoining a stream which is inundated when the discharge exceeds the conveyance of the normal channel.

A change of elevation, velocity, pressure, or other characteristics per unit length.

A person licensed under the laws of the State/Province to practice professional engineering

Graphical portrayal of the topographic featured of a land area, showing both the horizontal distances between the features and their elevations above a given datum