FDOT Standard Plans · FY 2026-27 · Series 700: Signing, Pavement Markings and Lighting
FDOT Standard Plans Index 700-020: Multi-Column Ground Sign
Short answer
Index 700-020 is the FDOT Standard Plan for Multi-Column Ground Sign, part of Series 700 (Signing, Pavement Markings and Lighting). The sections below are extracted from FDOT's Standard Plans Instructions (SPI) for this index — design criteria, assumptions and limitations, and what your plans must show.
Design Criteria
Design Criteria AASHTO LRFD Specifications for Structural Supports for Highway Signs, Luminaires and Traffic Signals (LRFDLTS-1) ; Structures Manual (SM) , Volume 3 , FDOT Modifications to LRFDLTS-1 ; Structures Manual (SM) Introduction, I.6
Design Assumptions and Limitations
Design Assumptions and Limitations See notes on Index 700-020 and Structures Manual (SM) , Volume 3. The breakaway capabilities of a multi-column ground sign are unidirectional (i.e., the fuse and hinge plate assembly is designed to activate from impacts in one direction). Systems with columns within a 7-foot span must use posts with a mass of 18 lb/ft or less.
Larger posts with masses up to 45 lb/ft may also be used but the columns must be more than 7 feet apart. The total mass of the sign assembly above the slip-plane and below the hinge must be less than or equal to 600 pounds. Foundation designs are based on the following conservative soil criteria which cover the majority of soil types found in Florida: Classification = Cohesionless (Fine Sand) Friction Angle = 30 degrees Unit Weight = 50 pcf (assumed submerged) Use Index 700-020 in conjunction with the Multi-Post Sign-LRFD v1.1 located on the Structures Design Programs Library website.
Payment
Payment Item number Item Description Unit Measure 700-2-BB Multi-Column Sign ES See the BOE and Specification 700 for additional information on payment, pay item use and compensation.
What your plans must show
Plan Content Requirements for this index — the SPI's checklist for designers.
- Column size must be shown in the Plans. See the FDM 940 for additional information.
How PDFDepth uses this index
When a plan set cites Index 700-020, PDFDepth's AI Plan Review cross-references the set against the Plan Content Requirements for the FDOT indexes it cites and flags items that appear to be missing — each with a citation to the sheet. A human reviewer verifies every flag before it counts.
Related indexes in Series 700
- Index 700-010 — Single Column Ground Signs
- Index 700-011 — Single Column Cantilever Ground Mounted Sign
- Index 700-012 — Single Post Sign Support Barrier Side-Mounted
- Index 700-013 — Single Post Sign Support Barrier Top-Mounted
- Index 700-030 — Wind and Hanger Beams for Overhead Signs
- Index 700-031 — External Lighting for Signs
- Index 700-040 — Cantilever Sign Structure
- Index 700-041 — Span Sign Structure
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Start for FreeText extracted from FDOT Standard Plans FY 2026-27, a public-domain Florida state publication. Always verify against the current edition at fdot.gov. PDFDepth is not affiliated with FDOT.