Utah Scenic Byways and Backways
Utah is renowned for its breathtaking landscapes, and the state has established a formal system to help travelers navigate its most visually stunning corridors. Beyond the standard highway network, the state legislature has designated a specific system of Utah Scenic Byways, which complement the National Scenic Byways found within the state's borders.
The Structure of Utah's Highway System
To understand the scenic routes, it is first necessary to understand the hierarchy of roads in Utah. The state utilizes several different naming conventions for its highways, which are signed and managed by the Utah Department of Transportation (UDOT).
- Interstates: Identified as Interstate nn (I-nn).
- US Highways: Identified as US Highway nn (US-nn).
- State Routes: Identified as State Route nn (SR-nn).
The broader Utah State Highway System is categorized into several links, including Interstate, US, State, Minor, Scenic, and Backway routes.
Designations and Regulations
The official framework for these routes is defined under the Utah Administrative Code section R926-13. While some routes carry only a state designation, others overlap with federal designations. To ensure clarity for drivers, the Utah Department of Transportation places a specific Scenic Byway plaque directly below the route number on highway markers.
Beyond the primary byways, the state has also designated certain local, county, and Forest Service roads as Scenic Backways, offering more remote alternatives to the main highway system.

Key Facts
- The system includes both state-designated Scenic Byways and federally-defined National Scenic Byways.
- Scenic Byway plaques are positioned directly below the route number on signage.
- The legal definition of the system is found in Utah Administrative Code section R926-13.
- Scenic Backways encompass local, county, and Forest Service roads.
- Some routes hold both state and federal scenic designations simultaneously.

Summary of Utah Route Types
| Route Category | Common Notation | Management/Designation |
|---|---|---|
| Interstate | I-nn | Federal/State |
| US Highway | US-nn | Federal/State |
| State Route | SR-nn | State |
| Scenic Byway | Plaque below route number | State or National |
| Scenic Backway | Varies | Local, County, or Forest Service |
Frequently Asked Questions
What is the difference between a Scenic Byway and a Scenic Backway?
Scenic Byways are typically part of the primary highway system (Interstate, US, or State routes), while Scenic Backways consist of more remote local, county, and Forest Service roads.
Where can I find the legal definition of Utah's Scenic Byways?
The byway system is officially defined at Utah Administrative Code section R926-13.
How do I identify a Scenic Byway while driving?
The Utah Department of Transportation identifies these routes by placing a Scenic Byway plaque directly below the route number on the highway markers.
Do state scenic byways differ from national scenic byways?
Yes, they are designated by different authorities (state legislature vs. federal government), although some specific routes in Utah overlap and carry both designations.