Riprap

(redirected from Rip rap)
Also found in: Dictionary.

riprap

[′rip‚rap]
(civil engineering)
A foundation or revetment in water or on soft ground made of irregularly placed stones or pieces of boulders; used chiefly for river and harbor work, for roadway filling, and on embankments.

Riprap

Irregularly broken and random-sized large pieces of quarry rock used for foundations; a foundation or parapet of stones thrown together without any attempt at regular structural arrangements.

riprap

1. Irregularly broken and random-sized large pieces of quarry rock; individual stones ranging from very large (2 to 3 cu yd, approx. 1.5 to 2.3 cu m) to small (1/2 cu ft, approx. 0.014 cu m); used for foundations and revetments.
2. A foundation or parapet of stones thrown together without any attempt at regular structural arrangement.
References in periodicals archive ?
On September 23, winds on the back side of Hurricane Rita produced a storm surge and waves that stripped the rip rap, or large rock protective covering, from approximately 11,000 feet of the approximately 13,700 foot long earthen embankment.
The earthen embankment is protected on the lake face by large rip rap (rock) which weigh as much as 3,000 pounds each.
Next, two layers of large 24-36-inch diameter rip rap was placed parallel to the bank.
The high winds and significant wave action brought by Hurricane Rita damaged the dam's earthen embankment eroding approximately 11,000 feet of the rip rap on the lake side of the dam, and exposing a significant area of the earthen embankment.
Tenders are invited for soil nails, shotcrete, ac paving, micro tunneling, minor concrete, rebar, clear & grub, dewatering, cement-bentonite cut-off wall, hydroseeding, electrical, fencing, furnish & install rip rap, silt fence, san bags, fiber rolls, supply cmb, supply decomposed granite, supply drain rock, supply filter sand, supply rip rap, supply asphalt concrete, supply misc.
The earthen embankment is protected from water erosion by rip rap, large 32 inch diameter stones, on the lake side of the dam.
The high winds and significant wave action brought by Hurricane Rita eroded some of the rip rap on the lake side of the dam, exposing part of the earthen embankment.
Tenders are invited for appprox 150 cy - undercut excavation; 400 sy - geotextile for soil stabilization; 96 lf - 15" rc pipe culverts, class iii; 1,290 sy - incidental milling; 9 ton - rip rap, class a; 4 ton - rip rap class b; 367 lf - 8" water line; 122 lf - 10" water line; 2 ea - 8" valve; 141.
Deposits on the GBSV property include garnet, white dolomite, white limestone, and black gabbro and other types of granites suitable for rip rap and guard rock.
specifications for rock: #58 or dga one inch down to 0, #57 one inch down to 4, #610 1-1/2 down to 4, #11 3/8 down to 100, #9 3/8 down to 8, #3 2-1/2 down to 1, rip rap class 1 3x5, rip rap class 2 5x9, rip rap class 3 3x18.
the successful firm will be required to complete the following tasks: 1) install erosion control blankets; 2) install rock revetment blankets; and 3) build and install wire-tied rock rip rap pads.