SC20(CA) Slow for the Cone Zone
Displays SLOW FOR THE CONE ZONE on an orange sign. The message encourages drivers to reduce speed near roadway work.
- Sign Name
- Slow for the Cone Zone
- MUTCD Code
- SC20(CA)
- California designation
- California-coded sign
- Sign Category
- California Construction Signs
Specifications
- Shape
- Rectangle (Vertical)
- Color / legend
- Orange background, black legend
Sizes & Dimensions (inches)
These are dimensions shown on the linked layout. Select the required size using the applicable MUTCD and agency requirements; the smallest drawing size is not necessarily the permitted minimum.
The drawing labels horizontal dimension A and vertical dimension B. Its table lists A × B as 36 × 42 and 48 × 54 inches, although the illustration appears wider than tall. These are the tabulated dimensions; do not infer dimensions or orientation from the preview proportions. Resolve any fabrication question with Caltrans using the original specification.
- Layout 136" × 42"
- Layout 248" × 54"
California Application & Variants
SLOW FOR THE CONE ZONE uses a black border and legend on an orange retroreflective background.
Size selection: The drawing labels horizontal dimension A and vertical dimension B. Its table lists A × B as 36 × 42 and 48 × 54 inches, although the illustration appears wider than tall. These are the tabulated dimensions; do not infer dimensions or orientation from the preview proportions. Resolve any fabrication question with Caltrans using the original specification.
Placement Context
- Where it sits
- At the location appropriate to the displayed instruction or warning, using the official drawing and project traffic-control plan.
- CA MUTCD reference
- CA MUTCD 2026 Chapter 6H — TTC Zone Warning 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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