FDOT Standard Plans · FY 2026-27 · Series 425: Structures
FDOT Standard Plans Index 425-054: Ditch Bottom Inlet Type J
Short answer
Index 425-054 is the FDOT Standard Plan for Ditch Bottom Inlet Type J, part of Series 425 (Structures). 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 and Guidance FDOT Design Manual (FDM) ; Drainage Manual (DM) ; Drainage Design Guide (DDG)
Design Assumptions and Limitations
Design Assumptions and Limitations This inlet is designed for use in ditches, medians, pavement areas, or other areas subject to heavy traffic loadings with minimal debris. This inlet is not for use in areas subject to bicycle traffic. This inlet may be placed in areas subject to occasional pedestrian traffic such as landscaped areas and pavement areas where pedestrians can walk around the inlet.
Recommended maximum pipe sizes for concrete pipe: For 2’11” or 3’3” Inlet Inside Width: 24” For 3’10” or 4’0” Inlet Inside Width: 30” Sizes for other types of pipe must be checked for fit in accordance with Index 425-001 . For larger pipe see bottom detail in Index 425-010 .
Payment
Payment Item number Item Description Unit Measure 425-160- Inlets, Dt Bot, Type J EA See the BOE and Specification 425 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.
- Include Drainage Structure information in the Plans in accordance with the requirements of the Basis of Estimates Manual ( BOE ) and the FDM. Call out Alternate G Grates when galvanized grates are required.
How PDFDepth uses this index
When a plan set cites Index 425-054, 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 425
- Index 425-001 — Manhole Covers, Frames, Tops, and Supplementary Inlet Details
- Index 425-010 — Structure Bottoms Type J and P
- Index 425-020 — Curb Inlets Types 1-10
- Index 425-021 — Curb Inlet Top Types 5 and 6
- Index 425-022 — Curb Inlet Type 7
- Index 425-023 — Curb Inlet Type 8
- Index 425-024 — Curb Inlet Type 9
- Index 425-025 — Curb Inlet Type 10
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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.