Iowa Primary Route Reference Post Sign Locations

Reference post sign locations mark all primary routes within the State of Iowa. The dataset includes physical signs and a virtual post with a value of 0 at the start of each route. It is provided by the State of Iowa and was last updated in April 2026.

Use Cases

• Calculate distances between reference posts to analyze route segment lengths.
• Map the spatial distribution of sign locations for asset management and maintenance planning.
• Identify the starting point of each primary route using the 0 value virtual post data.
• Analyze sign placement patterns relative to route characteristics for transportation studies.

Strengths

• Covers all primary routes in the state of Iowa.
• Includes a defined virtual post at the beginning of every route.

Limitations

• The exact number of rows and spatial precision of coordinates are unknown.
• The temporal coverage and update history prior to 2026 are unspecified.

Provenance

Source

State of Iowa

Collection Method

null

Time Range

null

Freshness

Last updated in April 2026.

Geography

State of Iowa, USA