Rip Rap is a loose stone, rock or boulder used to form a foundation to help prevent erosion, line shorelines, protect bridge abutments and pilings.  The rip rap helps to prevent a barrier to protect structures and shorelines from erosion or damage caused by water.  Rip Rap is also referred to as armor stone, bedding stone, bank and shore or typically rip rap.  It comes in varying sizes and also weights.  The FDOT often requests most Rip Rap materials for their projects by weight but the process of making rip rap in a rock crushing machine outputs a product that will fall into the different weight brackets but is typically ordered by size.  The most common sizes of rip rap are 3”to 6”, 6” to 12”, 12” to 18” and 18” to 24” with anything over 24” often referred to as Armor Stone.  Rip Rap is typically made of either a lime rock or shell rock and occasionally can be found made out of crushed concrete (a recycled material).  Rip Rap is often also used for decorative borders, edging or in landscape designs.  Rip Rap is most commonly found along waterways and water containment areas.  In Florida it is often seen along water front properties next to boat docks, fishing piers, golf courses and homes that have lakes behind them.

Common Names: FDOT Code 33 Ditch Lining, Armor Stone, Bank & Shore, Shot Rock, Rip Rap, Shoreline Stone, Rock, FDOT Code 30 Bank & Shore, Boulders.

Common Uses: Erosion control, drainage channels, coastlines, shorelines, waters edge, lessons water impact, prevents soil and bank erosion, retaining walls, around lakes and ponds, bridge work, port authority projects, outlying island projects, decorative, landscaping, used around bridge pilings and more. Often times rip rap is used for much of the bridge work construction in Florida.  Rip Rap is placed at the base of pilings to break the impact from the waves in an effort to protect from erosion.

COMMON NAMES FOR ROCK & STONE: Pea gravel, #4, #5, #57, #89, limestone, FDOT, commercial, ballast rock, drainage rock, FDOT Lime Rock & Commercial Lime Rock, FDOT Section 911 B01, FDOT 913 B11, commercial base rock, crushed shell rock, FDOT shell rock, base rock, FDOT Material Code B11, Shell-Rock Base and many more.

COMMON USES: drives, Florida Department of Transportation road road projects, pipe bedding, asphalt, concrete redi-mix, top dressing, parking lots, commercial, residential, erosion control for soil and banks, decorative, landscaping, irrigation, drainage, septic systems, utility work, spillways, retaining wall base and more.

Types of Rip Rap