FDOT Approved Aggregate & Rip Rap: Delta Aggregate’s Certified Supply

For contractors, engineers, and project managers working on Florida Department of Transportation (FDOT) projects, sourcing the right certified aggregate is non-negotiable. Spec deviations cause delays, failed inspections, and costly re-work. Delta Aggregate is an FDOT-approved aggregate and rip rap supplier serving Southwest Florida, with a product line covering the full range of FDOT base rock, rip rap, bedding stone, gabion basket stone, and sand specifications.

What Does FDOT Approval Mean for Aggregate Supply?

FDOT-approved materials must meet specific gradation, durability, and quality standards defined in the FDOT Standard Specifications for Road and Bridge Construction. Aggregate destined for FDOT-funded projects must come from approved sources listed on the FDOT Approved Products List (APL). Purchasing from an approved supplier ensures your materials will pass inspection without delay.

Delta Aggregate maintains compliance documentation and can supply materials certificates for FDOT project submittals upon request.

FDOT Aggregate Products Supplied by Delta Aggregate

FDOT C30 — Rip Rap Bedding Stone

FDOT Class C30 is a bedding layer stone used beneath primary rip rap installations. Its gradation allows for drainage while preventing the migration of fines from the underlying soil. C30 is required on most FDOT-specified rip rap installations as the foundation course before placing C32 or heavier armor rock.

Applications: Seawall toe protection, rip rap underlayment, drainage blanket layers

FDOT C32 — Rip Rap Bank & Shore Protection

FDOT Class C32 is the primary bank and shore rip rap specification used on FDOT drainage and waterway projects. Stone size and weight are engineered to resist displacement under normal channel flow and moderate wave action. It is commonly specified for ditch bank lining, canal revetments, and retention pond banks.

Applications: Canal banks, retention ponds, FDOT roadside ditches, shoreline revetments

FDOT C34 — Gabion Basket Stone

FDOT Class C34 gabion basket stone is sized for use inside wire-basket gabion structures. The stone must be large enough to prevent escape through the mesh while small enough to pack tightly within the basket. Delta Aggregate’s C34 supply meets FDOT gradation requirements for gabion and mattress installations.

Applications: Gabion retaining walls, channel lining, bridge abutment protection, slope stabilization

FDOT Base Rock

Base rock is compacted aggregate used as the structural foundation layer beneath asphalt and concrete pavement on FDOT road projects. Proper gradation and compaction to the specified density are required before pavement can be placed. Delta Aggregate supplies base rock meeting FDOT Specification Section 204 requirements.

Applications: Road base, driveway base, parking lot sub-base, FDOT paving projects

FDOT Rock & Sand

Delta Aggregate supplies FDOT-specification sand and rock materials for a range of project applications, from pipe bedding to backfill and concrete mix. Materials can be provided with gradation data sheets to support project submittals.

FDOT Rip Rap Ditch Bank Lining

Roadside ditch bank lining with FDOT-approved rip rap prevents undermining and scour at drainage channel banks, extending the service life of drainage infrastructure and reducing maintenance costs. Delta Aggregate has supplied ditch bank lining material for FDOT and local government drainage projects throughout Collier and Lee counties.

FDOT Bedding Stone

Bedding stone is used as a cushion and drainage layer around pipe installations, below structural footings, and beneath rip-rap revetments. FDOT bedding stone specifications vary by application; Delta Aggregate can supply washed stone meeting the applicable gradation for your project.

Project Compliance Documentation

Delta Aggregate provides the following documentation support for FDOT projects:

• Material certificates of compliance
• Gradation test results and sieve analyses
• Source approval documentation
• Delivery tickets with material identification

Serving FDOT Projects Across Southwest Florida

Delta Aggregate is based in Immokalee, FL, with hauling capability throughout Collier, Lee, Hendry, Charlotte, and Glades counties. We understand FDOT project scheduling and can coordinate deliveries to meet construction sequencing requirements.

Call us at 815-791-8377 or visit deltaaggregate.com to discuss your project materials and timeline. We’ll provide pricing, availability, and compliance documentation to keep your FDOT project moving.