R3-27 ABO · Activated Blank-Out Sign (based on Federal MUTCD R3-27 sign)
R3-27 ABO Official Dimension Drawing
The complete official drawing contains the dimensions and design details for this sign. A separate size chart has not been transcribed for this entry.
Open R3-27 ABO Official Dimension Drawing (PDF, opens in a new tab)Official PDF · Opens in a new tab
Read Dimensions in the Official PDF
Dimensions and variant-specific details are provided in the official PDF. Numeric sizes have not been separately transcribed for this entry.
Check the drawing's complete size schedule and variant notes. The sign artwork shown above has no dimension annotations.
California Application & Variants
Caltrans lists R3-27 ABO as Activated Blank-Out Sign (based on Federal MUTCD R3-27 sign). The sign face is shown without drafting annotations; Layout opens the complete official specification.
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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