riprap

[rip-rap]

noun

1. a quantity of broken stone for foundations, revetments of embankments, etc.

2. a foundation or wall of stones thrown together irregularly.

verb (used with object)

riprapped, riprapping 

1. to construct with or strengthen by stones, either loose or fastened with mortar.

Word History and Origins

Origin of riprap¹

First recorded in 1570–80; gradational reduplication of rap ¹

Example Sentences

Crews placed 5,900 tons of large boulders, known as riprap, along the rail, which are intended to absorb flowing water and stabilize potential runoff that may obstruct the rail.

From Los Angeles Times

The initial work will restore rock reinforcements, known as riprap, along the tracks that have degraded due to wave damage and beach erosion, the agency said.

From Los Angeles Times

DWP recovery efforts included repairing roads, adding riprap armor to 14 miles of berm slopes, removing critical electrical equipment threatened by corrosive floodwaters, and installing monitoring stations and cameras to track flooding in real time.

From Los Angeles Times

“But what do we do about the future? We’re not just talking about riprap and wharfs, we’re talking about being ready in many ways.”

From Seattle Times

Soon, a train hauling 24 gondolas and groaning with tons of riprap inched toward us.

From Los Angeles Times