Hard to tell in the Street View, but the railings look fairly small and lightweight in comparison to the length of the bridge, so my vote would be that the railings are non-structural, and the bridge is a lattice railing stringer bridge, rather than a lattice girder.
From the looks of the street view, this bridge looks like it has lattice type railings. Is it a lattice type pony truss? Comments welcome.
I agree with Nathan regarding the apparent non-structural railings on this bridge. I love street-view, it is so tantalizing sometimes, it often gives the hints we need to see that a journey to document a structure is worthwhile.