A whipple would have verticals. This one does not. It matches what I understand to be a warren quadrangular or lattice truss.
It looks like a short variation of the Quadrangular truss. I don't think it is whipple though. But I could be wrong. Compare it to this bridge.
Looks like a quadruple intersectional Lattice truss to me.
So what kind of truss is this? Looks like a Whipple.