View ca. 1914
This historical photo shows the bridge in its prime, before a complete lack of care of this beautiful bridge allowed it to deteriorate.
Source: Vol 28, Contact Record and Engineering Review, 1914
BH Photo #202136
This bridge is an exceedingly rare example of a concrete arch bridge which is reinforced with solid, built-up beams, as opposed to rebar. This detail is generally found in the oldest of concrete arch bridges and all surviving examples should be assigned a high level of historic and technological significance as they represent the early development of reinforced concrete bridge construction. Despite its great significance, this bridge has been allowed to deteriorate to a very serious condition. The reinforcing is today clearly visible, and the balustrade railings have been lost.
Rehab of this bridge is ongoing.
It appears their may be some good news for this bridge as a restoration is being discussed: http://www.twincities.com/stpaul/ci_22170117/como-park-bridg...
I was extremely disturbed to discover what appears to be among the oldest and most significant concrete arch bridges in Minnesota to be in a severe state of deterioration. I added some Flickr photos to the Sources list that show the deterioration as the Melan or Melan style reinforcing, which is the detail that gives this bridge high significance.
Rehab is nearing completion, and it is looking good. Based on what I've seen, the rehab retains a significant amount of historical integrity in the structure.