- How French Drains Work (practical.engineering)
In February of 2017, one of the largest spillways in the world, the one at Oroville Dam in northern California, was severely damaged during releases from heavy rain. You might remember this. I made a video about it, and then another one about the impressive feat of rebuilding the structure. In the forensic report following the incident, one of the contributing causes identified in the failure was the drainage system below the spillway. Rather than being installed below the concrete, each drain protruded into it, reducing the thickness of the concrete and making it more prone to cracking.
- Cyprus (Wikipedia)
Cyprus (/ˈsaɪprəs/), officially the Republic of Cyprus, is an island country in the eastern Mediterranean Sea, north of the Sinai Peninsula, south of the Anatolian Peninsula, and west of the Levant. It is geographically a part of West Asia, but its cultural ties and geopolitics are overwhelmingly Southeast European. Cyprus is the third largest and third-most populous island in the Mediterranean. It is east of Greece, north of Egypt, south of Turkey, and west of Lebanon and Syria. Its capital and largest city is Nicosia. The northeast portion of the island is de facto governed by the self-declared Turkish Republic of Northern Cyprus.