What's the story here? Was Cedar Avenue re-aligned and this crossing served a former alignment? Whereupon, the wooden deck that is (presumably still) now there allows for crossing this former span, most likely to serve a currently-existing trail.
In lieu of the bridge that Nick just posted, I'd like to be able to timeline the two, but the pictures posted for this entry are throwing me off.
Or, are these pictures of whatever appears to be crossing the creek at 43.981006, -84.496192, near where Cayuga Street is winding alongside?