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I am looking on how to design soldier piles in rock. I look at AASHTO 5.6.2 (1999) figure 5.6.2A, but the units do not match when compared with the active pressure, help

That sounds about right. #5 @ 5,

Oops, I forgot to mention two more items, when designing in conditions where you need epoxy reinf. you need to increase your clearances,especially at the top of bridge deck. Design wise you may need to use an exposure factor of 130 instead 170, see AASHTO 8.16.8.4

My experience in California is all the deck reinf, and any reinf. going into the deck such girder shear reinf. and reinf. in concrete barrier rails.

I have a set of Homberg charts, for a single cell box girder. But the text is in German. How do you use the factors on the charts. I know you use these with two girder systems of large single cell box, help

if you want to about cast-in-place post tensioned box girders. Then check out the Caltrans manuel-Bridge Design Details. www.dot.ca.gov-hq-structres

A good source of information is the Caltrans (Calif DOT)Bridge design Manuels.