Roadway data

Find information about the roadway data related products and services such as functional classification, highway performance monitoring system, national highway system, roadway images and state highway log.

Functional classification

This information defines how a route should perform in serving the flow of traffic through a highway network. It is the grouping of highways, roads and streets by the character of service they provide and was developed for transportation planning purposes.

Highway performance monitoring system

The Highway performance monitoring system (HPMS) is a national level highway information system which includes extent, condition, performance, use and operating characteristic data for public roadways nationwide.

National Highway System

The National Highway System includes the Interstate Highway System as well as other roads important to the nation's economy, defense and mobility.

State route imagery collection

Request and view our collection of digital imagery of the state highway system, collected biyearly. Use our state route viewer tool to view the roadway by milepost.

Roadway reports by request

The following reports contain roadway geometric data in various forms, including horizontal and vertical alignment, road life (contract history) and highway classification.

State Highway Log

The State Highway Log is annually published and designed to provide a record of current highway system information and a source for computing distances between major points.

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