What does IL stand for?

MLA style: "IL." Acronym Finder . 2012. AcronymFinder.com 31 May. 2012 http://www.acronymfinder.com/Invert-Level-(civil-engineering)-(IL).html
Chicago style: Acronym Finder . S.v. "IL." Retrieved May 31 2012 from http://www.acronymfinder.com/Invert-Level-(civil-engineering)-(IL).html
APA style: IL. (n.d.) Acronym Finder. (2012). Retrieved May 31 2012 from http://www.acronymfinder.com/Invert-Level-(civil-engineering)-(IL).html

Invert Level (civil engineering)

This definition appears very rarely and is found in the following Acronym Finder categories:

Science, medicine, engineering, etc.

Other Resources:

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Samples in periodicals archive:

The outlet, or spigot, is placed 35 millimeters (mm) above the base to prevent contact with the ground and to avoid drawing out sediments that settle in the area below invert level (the area between the bottom of the urn and the spigot).

Effective and culturally acceptable water storage in Zimbabwe: ...