Dimensions are in the official PDF. Opens in a new tab.
G28-1(CA) Requirements & Application NotesG28-1(CA) California State Route Marker (Route 99)
Identifies a California state highway using the state route shield. The installed number identifies the route.
- Sign Name
- California State Route Marker (Route 99)
- MUTCD Code
- G28-1(CA)
- California designation
- California-coded sign
- Sign Category
- Guide & Destination Signs
Specifications
- Shape
- Shield
- Color / legend
- Green background, white legend
Official Dimension Drawing
Shield dimensions depend on numeral height and digit count; use the dimension schedule in the linked drawing.
Placement Context
- Where it sits
- At the location appropriate to this guide-sign function; consult the linked manual and drawing for its application.
- CA MUTCD reference
- CA MUTCD 2026 Chapter 2D — Guide Signs — Conventional Roads
Related Signs
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Educational reference only. This is not an official Caltrans, FHWA, or local agency publication and is not legal or engineering advice. Always verify sign selection, size, placement, spacing, and application against the current CA MUTCD 2026, Caltrans sign specifications, Standard Plans, project documents, and the reviewing agency’s requirements. Local jurisdictions may impose additional requirements, and final selection, placement, and dimensions may require engineering judgment or agency approval. Reference editions: California MUTCD 2026 (effective January 18, 2026) and the Federal MUTCD 11th Edition with Revision 1.
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