#89 limestone, also known as FDOT Code 17 stone, FDOT #89 limestone, or small crushed limestone, is a specification-grade aggregate produced for Florida roadway, concrete, drainage, and construction applications. It is commonly supplied as 3/8-inch-and-smaller crushed stone, although exact gradation may vary by approved source and project requirements.
Its small, angular particles spread evenly and create a smooth, uniform finished layer. The crushed edges help the stone settle together and resist movement, while the controlled gradation supports consistent performance in concrete, asphalt, drainage, and surface applications.
#89 limestone is popular because it provides a finer texture than larger aggregates such as #8 or #57 stone. Its manageable size makes it easy to place around pipes, pavement, hardscapes, and narrow construction areas where accurate grading and a clean finish are important. FDOT Code 17 material is especially suited for projects requiring approved aggregate quality and dependable specification-grade performance.
Common Applications of #89 Limestone (FDOT Code 17)
- Concrete and asphalt aggregate mixes
- Pipe bedding and utility trench support
- Drainage layers around structures and pavement
- Driveway and parking-area top dressing
- Walkways and hardscape surface preparation
- Leveling and finishing over compacted base
- Municipal and commercial construction
- FDOT roadway and infrastructure projects










