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Florida's precast concrete drainage work on state projects is governed by the Florida Department of Transportation (FDOT). The requirements for drainage structures, reinforced concrete pipe, box culverts, and the concrete itself live in the Standard Specifications for Road and Bridge Construction, with details carried on the state's standard drawings. Precast producers read those documents alongside the project plan set to know what to make and how it will be accepted.
FDOT plan sets tabulate storm drainage structures in a Summary of Drainage Structures. Each structure is identified by number, type or applicable Standard Plans index, bottom and top elevations, and pipe connections. The tabulation lets a contractor or supplier count and classify every inlet, manhole, and junction box without reading each plan sheet.
Standard Specifications for Road and Bridge Construction, FY 2027-28 (updated on an annual fiscal-year cycle; confirm the edition cited in a given contract). The sections below cover precast drainage structures, pipe, culverts, and concrete.
| Section | Title |
|---|---|
| 346 | Structural Portland Cement Concrete |
| 400 | Concrete Structures |
| 407 | Three-Sided Precast Concrete Culvert |
| 410 | Precast Concrete Box Culvert |
| 425 | Inlets, Manholes and Junction Boxes |
| 430 | Pipe Culverts |
Section numbers are a reference. Confirm them against the current specification and any special provisions for your project.
The Standard Plans (formerly the Standard Index) carry the drainage details. The 400 series covers concrete box culverts and three-sided culverts, the 425 series covers inlets, manholes, and junction boxes, and the 430 series covers pipe culvert end treatments such as endwalls, flared end sections, and mitered ends.
The State Materials Office qualifies materials through the Approved Product List and category-specific acceptance criteria. Precast concrete drainage structures and box culverts are accepted through the plant Quality Control Program rather than the APL; the roster of accepted plants is the Precast Concrete Drainage Sources report.
Plant certification: Quality Control Program for precast concrete drainage structures (Producers with Accepted Quality Control Programs). State in-house (FDOT State Materials Office, Structural Field Operations Unit).
FDOT plan sets tabulate storm drainage structures in a Summary of Drainage Structures. Each structure is identified by number, type or applicable Standard Plans index, bottom and top elevations, and pipe connections. The tabulation lets a contractor or supplier count and classify every inlet, manhole, and junction box without reading each plan sheet.
DhyanaERP reads FDOT drainage summaries today.
DhyanaERP Drainage Summary Import reads a plan set, finds the drainage structure sheets, transcribes them under a strict extraction contract, checks the engineering, and turns each row a person confirms into a priced structure. This status describes DhyanaERP's reading capability only. It is not a statement of DOT approval.
See DhyanaERP Precast EditionSection 425, Inlets, Manholes and Junction Boxes, in the Standard Specifications for Road and Bridge Construction, read together with the 425 series of the Standard Plans.
Section 430, Pipe Culverts. Pipe end treatments such as endwalls and flared end sections are detailed in the 430 series of the Standard Plans.
Section 410 covers Precast Concrete Box Culvert and Section 407 covers Three-Sided Precast Concrete Culvert, with box and three-sided details in the 400 series of the Standard Plans.
Yes. Precast concrete drainage structures, pipe, and box culverts must come from a plant with an FDOT-accepted Quality Control Program; the current roster is the Precast Concrete Drainage Sources report maintained by the State Materials Office.
Through the FDOT Central Office Letting and Project Information page and the corresponding district letting pages, which list advertised projects, proposals, and plan ordering.
Every link points to the agency's own site.
DhyanaTech is not affiliated with or endorsed by any state DOT.
Reference only. Not engineering or legal advice. Always confirm against the current specifications and the contract documents for your project.
Last verified November 2026.