Riprap is often sold by the ton at a cost of $35 to $250 per ton. Expect to pay $35 to $100 per ton for small riprap (six inches to two feet). Large ones (two feet or more) cost $50 to $250 per ton.
|PRODUCT||COVERAGE RATE PER TON OF MATERIAL|
|8”-18” Rip Rap||20 Square Feet|
|4”-10” Rip Rap||30 Square Feet|
|2″-4″ Rip Rap||70 Square Feet|
|1”-3” Rip Rap||90 Square Feet|
The quantity can be listed by the volume (cubic yards) or weight (tons). Rock riprap weighs 1.2 to 1.7 tons per cubic yard.
|Rock type||Average price|
|Lava rock||$80 – $240 per ton $50 – $140 per yard $20 – $50 per bag|
|Large boulders||$100 – $350 per ton|
In general, the average installed cost of riprap is from $30 to $65 per square yard, and sometimes much more, depending on rock size, transportation costs from the stone quarry, and other project specifics.
Multiply the riprap’s cubic yardage by its density. For example, if the you are calculating the weight of 15 cubic yards of gravel: 15 × 2,700 = 40,500 lb. Divide this answer by 2,000, which is the number of pounds in a ton: 40,500 ÷ 2,000 = 20.25. This is the riprap’s weight, measured in tons.
Riprap, also known as rip rap, rip-rap, rock armor, armoring, or revetment, is rock or other material used to protect your shorelines against natural water and weathering damage. Common rock types used in a rip-rap solution include granite and limestone. Sandstone should NEVER be used for a project of this nature.
Page 1. RIP-RAP CLASSIFICATION SPECIFICATIONS. CLASS 1 RIP-RAP. No more than 10% of the stone will have a diameter greater than twelve (12) inches; no more than 50% of the stone will have a diameter less than ten (10) inches; and no more than 10% of the stone will have a diameter of less than six (6) inches.
Immediately install the riprap layer. First place an anchoring row of large rocks in the trench at the toe of the bank. Riprap stones should then be hand-placed or very carefully dumped so that smaller stones fill the voids between larger ones.
How big is a 1 ton rock? Assuming an average weight of 165 pounds per cubic foot, a 1 ton rock has a volume of 12.1 cubic feet, a diameter of 2.85 feet, and a circumference of 9 feet.
Riprap is more expensive than vegetated slopes. There can be increased scour at the toe and ends of the riprap. Riprap does not provide the habitat enhancement that vegetative practices do.
4. Rip Rap Lasts for A Long Time. If you keep up on the annual maintenance of your rip rap rock wall, then it will work for a lifetime. Rip rap rocks are designed to be durable and long-lasting.
Effectiveness. When properly designed and installed riprap can be an effective erosion control practice for armoring slopes and channel banks. When used as a containment berm (e.g., as a sediment trap), riprap can help to control sediment.
|Coverage (Square feet)||400||sq ft|
|Volume (Cubic feet)||67||cu ft|
|Volume (Cubic yards)||2.5||cu yd|
|Estimated amount (Pounds)||5,951||lb|
|Estimated amount (Tons)||2.98||ton|
4.6.3 Rock Density
The density of rock used for riprap typically varies from about 2,400 kg/m3 (150 lb/ft3) to 2,800 kg/m3 (175 lb/ft3), with a density of about 2,600 kg/m3 (162.5 lb/ft3) common for the granitic or granodioritic rocks that are often quarried in British Columbia.
Riprap or rock armour an effective solution to protect coastlines and structures from erosion by the sea, rivers, or streams. … Large boulders interlocked together to form rock revetments can be used to control erosion by armouring the beach face and dissipating wave energy.
(6″-18″ rock, basketball size to car tire size) – larger material to provide slope stability and erosion control. Used in roadside ditches too.
|Class||% of Rock Equal or Smaller by Count||Range of Intermediate Dimensions,(2)|
|3||15||8 – 10 (200 – 250)|
|4||100||27 – 33 (690 – 840)|
|85||19 – 23 (480 – 580)|
Following are the most used sizes: Class I – 50 lbs to 150 lbs. or 12”- 18” Class II – 150 lbs to 500 lbs. or 18” – 26” Class III – 500 lbs. to 1500 lbs. or 26” – 36”
In order of importance: Proper grade – No steeper than a 3:1 slope (horizontal to vertical) when possible. We always grade a shoreline prior to fabric and riprap installation.
In the American English of 1822 the word riprap was connected with a nautical word, rip-rap, which meant a “stretch of rippling water, often caused by underwater elevations.” The word “rap” also meant “blow, or strike.” People may have started to call it rip rap because the waves constantly blow into or strike the …
rip rap cost calculator
rip rap prices near me
rip rap stone for sale near me
how much rip rap do i need
how much does rip rap cost per foot
class b rip rap calculator
rip rap cost per metre
cost of river rock per ton