If you bid Florida roadway projects, FDOT Standard Specifications Section 334 (Superpave Asphalt Concrete) is one of two or three spec sections you absolutely have to internalize. Section 334 covers the bulk of structural asphalt placed on state-system roads – the mainline pavement, intermediate courses, and most resurfacing scopes.
Here’s a working contractor’s cheat sheet to the section as it applies to 2026 lettings.
What Section 334 covers (and what it doesn’t)
Section 334 applies to Superpave Asphalt Concrete mixes – the dense-graded structural asphalt placed in lifts on FDOT roadway projects. It defines the mix design requirements, materials, plant production, hauling, placement, compaction, and acceptance criteria.
It does NOT cover:
- Section 337 – Asphalt Concrete Friction Course (the wearing surface on most arterial highways)
- Section 339 – Miscellaneous Asphalt Pavement (driveway tie-ins, intersection patches, small areas)
- Section 332 – Hot Bituminous Mixtures, General Construction Requirements (broader applicability)
- Section 327 – Mill and Resurface (the milling spec, not the asphalt itself)
You’ll almost always see Section 334 paired with one or more of those above in a bid package.
Mix designations you’ll see in bid documents
Section 334 mixes are designated by aggregate size and traffic level:
| Designation | Aggregate Size | Typical Use |
|---|---|---|
| SP-9.5 | 9.5 mm nominal max | Surface/wearing course, low to moderate traffic |
| SP-12.5 | 12.5 mm | Surface or intermediate course, moderate-heavy traffic |
| SP-19.0 | 19.0 mm | Intermediate or base course |
| SP-25.0 | 25.0 mm | Base course, heavy-truck routes |
Each is further qualified by traffic level (Tn) – TLA, TLB, TLC, TLD, or TLE – indicating expected ESALs (Equivalent Single Axle Loads). Higher traffic level = tighter mix design requirements and higher binder grade.
When you read a bid item like “SP-12.5 TLC,” that’s a 12.5 mm Superpave mix designed for Traffic Level C (intermediate volume of heavy trucks).
Compliance points that catch bidders
Three Section 334 compliance items that consistently catch newer FDOT subcontractors:
1. Producer Quality Control (QC) Plan. Your asphalt supplier must have an FDOT-approved QC Plan on file specific to each mix design used. A plant approved for SP-12.5 isn’t automatically approved for SP-19.0. Verify before bid – substituting a non-approved mix mid-project triggers stop-work and re-test costs.
2. Verification testing tolerance. FDOT does independent verification testing on placed material. The acceptance limits for gradation, asphalt content, and density have specific tolerance bands. Producers who run their QC at the edge of the tolerance band consistently lose points (and pay liquidated damages) when FDOT verification swings the other direction. Build a buffer into your mix design.
3. Lot/sublot acceptance. Section 334 uses statistical lot acceptance with random sampling. A single failing sublot can trigger reduced payment factors across an entire lot. The arithmetic of how partial-payment factors apply on FDOT pay items is worth modeling into your bid risk math.
What’s new in 2026 spec updates
FDOT updates the Standard Specifications annually. The 2026 update to Section 334 includes:
- Updated reference to AASHTO M 332 for asphalt binder grading
- Clarifications to the SBS-modified binder requirements for high-traffic mixes
- Minor changes to test method references (AASHTO T 30, T 308) reflecting updated AASHTO standards
If you’re bidding a 2026-let project, pull the most current Section 334 from FDOT’s specifications page – don’t rely on the spec book you used for 2025 work.
How VLJ partners on Section 334 scope
We supply paving crews and tri-axle hauling for primes bidding Section 334 mainline work across Florida. Our crew foremen are familiar with the QC documentation chain, the lot/sublot density sampling sequence, and the coordination required with the asphalt supplier’s quality control team.
If you’re a Florida prime building a Section 334 paving team for an upcoming FDOT letting, reach out.
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Related Resources
- Our Services – FDOT-compliant paving, milling, and hauling across Florida.
- What Are the Different Types of Asphalt Milling Services
- Record-High FDOT Budgets Signal a Booming Future for Florida Road Construction
Bidding a Section 334 project in Florida? Talk to VLJ Construction Services.
