Never fucking log in to youtube duh!
Stress testing would be "calculated" by engineers in a drawing room, samples would also be tested.
THEN the bridge would be built to those standards. You do not perform in situ stress tests. Especially not with traffic under the bridge. This was planned.
Concrete guy here. You do not perform in situ stress tests on bridges! This is all calculated. Have you ever been asked to do anything as stupid as this?
Well that took the chatter away from McCabe didn't it!
http:// www.hydrowates.com/bridge-load-testing.html
https:// digg.com/video/this-is-how-to-stress-test-a-70-foot-concrete-bridge
https:// www.dot.ny.gov/divisions/engineering/technical-services/trans-r-and-d-repository/sr147.pdf
http:// www.iowadot.gov/research/pdf/newsmarch2010.pdf