Typically, the concern is less with camber values and more with the bridge rating/strength, however, the two are interrelated since most analysis programs give both a girder rating and deflection/camber values.
Our office has designed a number of bridges with varying skew (20 degrees to 55...
See the commentary: (2nd Paragraph in 6th AASHTO edition...I think it is the same in the 7th)
"Provisions specified, herein, are used for the distribution of tension reinforcement to control flexural cracking."
These provisions don't apply to stirrups...
I am working on a project where we need to rehabilitate an existing metal bin wall with ground anchors tying back precast panels. The project is very similar to the one outlined in the following paper:
http://conf.tac-atc.ca/english/resourcecentre/readingroom/conference/conf2009/pdf/Elholm.pdf...