U.S. flag

미국 정부 공식 웹사이트입니다

Dot gov

Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS

A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites..

alert - warning

이 페이지는한국어로(으로) 번역되지 않았습니다. 해당 언어의 리소스는 한국어 페이지를 방문해 주십시오.

Shear Walls

Walls used for structural support but not structurally joined or enclosed at the ends (except by breakaway walls). Shear walls are parallel or nearly parallel, to the flow of the water and can be used in any flood zone.