
This guide summarizes the MUTCD requirements and practical application guidance for the G20-1 ROAD WORK NEXT XX MILES sign. Use this resource to understand when it is required, how to place it correctly, and how to maintain clear visibility for safe operations.
Beginning of long-duration or corridor work zones
Beginning of the work zone (advance/upstream).
Mount at the standard height and setback for the roadway with clear sight lines.
High reflectivity and clear sight lines are essential day and night.
Informs drivers of the total length of a work zone, telling them how many miles of road work to expect ahead.
Informs drivers of the total length of a work zone, telling them how many miles of road work to expect ahead. In the field, G20-1 Road Work Next XX Miles is typically positioned at the beginning of the work zone (advance/upstream). Common deployments include beginning of long-duration or corridor work zones; highway and expressway projects spanning miles; paired with END ROAD WORK at the downstream end. Always confirm its size, retroreflective sheeting, spacing, and placement against the CA MUTCD 2026 and the reviewing agency before finalizing the traffic control plan.
Beginning of the work zone (advance/upstream).
Typical minimum: 48" × 24".
Used at the start of longer California work zones, especially on highways and corridors, to set driver expectations for an extended work area.
Go to California NotesEducational 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. Written against California MUTCD 2026 (effective January 18, 2026) and the Federal MUTCD 11th Edition. Official sources last verified June 2026.
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