What this is

A dataset of permanent survey markers (called “secondary control points”) that help map and measure Oklahoma City accurately.

Why it matters to you

These markers are the hidden reference points that ensure construction projects, property surveys, and infrastructure work align correctly. If a developer builds a new shopping center or the city repairs a bridge, surveyors use these markers to verify locations down to the inch. Errors in these points could mean misplaced property lines or misaligned roads.

How to read this data

Key fields include:

  • Station number: A unique ID for each survey marker (like “OKC-456”).
  • Easting/Northing: Precise coordinates in Oklahoma’s state plane system (not latitude/longitude).
  • Elevation: Height above sea level in feet—critical for floodplain maps or grading land.
  • Description: Notes like “in sidewalk near NW 23rd & Walker” to help locate the physical marker.

Where this leaves you

This dataset doesn’t support address lookups, but professionals use it to anchor legal surveys and engineering plans. If you’re disputing a property line, your surveyor would reference these points.