C24(CA) · Shoulder Work Ahead
C24(CA) Sizes & Dimensions
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. All dimensions below are in inches.
Open C24(CA) Official Dimension Drawing (PDF, opens in a new tab)Official PDF · Opens in a new tab
Dimensions from the Official Drawing
Dimensions are side lengths of the diamond, not its corner-to-corner span.
- Layout 130" × 30"
See layout variant and applicable MUTCD size-selection requirements.
Dimensions are side lengths of the diamond, not its corner-to-corner span.
- Layout 248" × 48"
See layout variant and applicable MUTCD size-selection requirements.
Dimensions are side lengths of the diamond, not its corner-to-corner span.
Drawing dimensions are not a universal minimum or an agency approval. 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.
Official References
- C24(CA) — Caltrans specification drawing (opens in a new tab)
- C24(CA) — CA MUTCD 2026 Chapter 6H — TTC Zone Warning Signs, PDF page 6 (opens in a new tab)
- California MUTCD (Caltrans) (opens in a new tab)
- Federal MUTCD — 11th Edition (FHWA) (opens in a new tab)
- Caltrans Sign Charts (opens in a new tab)
- FHWA Standard Highway Signs (opens in a new tab)
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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