Deprecation of US Survey Foot & Coming New Datum’s!

  • 15 Nov 2022
  • 10:00 AM
  • 21 Oct 2023
  • 8:00 PM
  • On Demand


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Course Title: Deprecation of US Survey Foot & Coming New Datum’s! 

3 Professional Development Hours (PDHs)

Approved for Alabama, Florida, and Tennessee.

After registering, you will receive an email with instructions for watching the recording and submitting to receive your PDH Certificate. 

A three hour forum covering the changes from U S Survey Foot to International Foot and the effect on the Professional Surveyor. Including short presentations by four speakers covering the proposed changes. Followed by a discussion on the future of Alabama surveying.

Speaker One: Why are we doing this? Presented by Milton Denny, PLS

After more than three hundred years surveyors are surveying in the same manner as George Washington, which is monuments found in the field without good spatial location.

The Bureau of Standards as of January 1, 2023 is deleting the use of the US Survey Foot. This is backed and in conjunction with National Geodetic Survey (NGS) plans to release new updated horizontal and vertical coordinate systems. Proposed is a worldwide coordinate system, called the International Terrestrial Reference Frame to relate coordinate systems to Tectonic Plate Movement, with possible point migration.

The great question is this something we want to do and how will we implement the plan?

Speaker Two: How are we going to do this? Presented by John D. Russell, PLS

The base for the new system will be based on State Plane Coordinates. The zones will be changed in many different ways to make the system as practical as possible.

The backbone of the new system will be the ALDOT Continuously Operating Reference Station (CORS). This system will provide the surveyor location in real time. Many surveyors are already using this system in the current State Plane Coordinate System. All this will be in the International Survey foot.

Speaker Three: How difficult will this be? Bill Hazelton, Ph.D.,PLS - Troy University

Dr. Hazelton with give us an overview of the tools necessary to implement this system, and the training that may be available through Troy University.

Speaker Four: Tony Manary, PLS - 2 the Point Surveying

I see four options for ASPLS to implement this major change in how surveying in the future will be done in Alabama. After the options the floor will be open for questions of the panel, discussion and brainstorming. The society has the time to get this right. Will most likely result in changes to the survey laws in Alabama

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