# George Bush collapses bridge in Bay area... **URL:** \ **Category:** NYSpeed Off Topic\ **Created:** [April 30, 2007, 6:29am UTC](https://forums.speedlife.net/t/george-bush-collapses-bridge-in-bay-area/28512 "2007-04-30T06:29:36Z")\ **Posts on this page:** 1\ **Showing post:** 13
**Author:** ![vq30de](https://avatars.discourse-cdn.com/v4/letter/v/9dc877/32.png) [@vq30de](https://forums.speedlife.net/u/vq30de)\ **Post date:** [April 30, 2007, 8:44am UTC](https://forums.speedlife.net/t/george-bush-collapses-bridge-in-bay-area/28512/13 "2007-04-30T08:44:54Z")
? Structural steel will fail at that temp, im pretty sure… Jet fuel can burn as high as 1000\* F, and the critical temperature for structural steel is 540\* F edit again: Although, in buildings, structural steel elements have to be covered with some kind of endothermic building material, such as concrete and gypsum wallboard. These materials do not make a building fireproof however. They will degrade after a specified time. Their function is to allow enough time to allow the building to be evacuated before they fail. Bridges however do not have fireproofing (at least no bridge that I have ever seen) --- _[View the full topic](https://forums.speedlife.net/t/george-bush-collapses-bridge-in-bay-area/28512)._