Section 865IAC1-12-22. Measurements for route surveys

   (a) When conducting a route survey, the land surveyor shall be responsible to use the minimum standards of measurement for urban surveys provided for in section 7 of this rule, except that relative positional accuracy may not exceed five-tenths (0.5) feet for a route survey.

  (b) Measurements generally shall be shown on the route survey plat with a number of significant figures representative of the precision of the work.

  (c) The measurements specifications outlined in this section will apply to all of the following items shown on a route survey:

(1) The control survey points.

(2) Survey ties to either of the following:

(A) The nearest United States Public Land Survey subdivision corners that are reasonably accessible on both sides of the controlling survey line.

(B) Monuments with established state plane coordinates.

(3) All monuments and reference monuments, and any ties thereto, that are set relative to the controlling survey line.

  (d) If the route survey references or is based on state plane coordinates or utilizes the Global Positioning System (GPS), the written surveyor's report shall identify the following:

(1) The datum and projection.

(2) The year of applicable datum adjustment.

(3) The originating or controlling monuments.

(4) The GPS base stations or positioning software used, for example, the Online Positioning User Service (OPUS).

(5) The source and format of the corrections if real time kinematic GPS was used.

(6) The Geoid model used, if applicable.

(7) The scale, elevation, and combination factors used in the coordinate calculations.

(8) Information on any translation to or from a local system.

(9) The collection processes and methodology of final positioning.

(10) Whether the distances shown are grid or ground.

(State Board of Registration for Professional Surveyors; 865 IAC 1-12-22; filed Jul 17, 1991, 4:30 p.m.: 14 IR 2250; filed Oct 13, 1992, 5:00 p.m.: 16 IR 893; errata, 21 IR 4537; readopted filed May 22, 2001, 9:55 a.m.: 24 IR 3237; filed May 4, 2006, 1:25 p.m.: 29 IR 3016; readopted filed Nov 9, 2012, 11:26 a.m.: 20121205-IR-865120390RFA) NOTE: 864 IAC 1.1-13-37 was renumbered by Legislative Services Agency as 865 IAC 1-12-22.