Looking for scenery object for DT&I

[Nicholas018]

I am creating a portion of the old DT&I railroad line in southern Michigan and am looking for a scenery object that doesn't seem to be available on DLS. It is preferably a spline of unused concrete catenary arches that span two tracks, used for an old electrified rail line. I have supplied a link to a photo of what I'm looking for and a link describing them. If I could have someone create this for me, or help me create this myself it would be great. Perhaps someone can help. Thanks.

http://www.flickr.com/photos/pm_morningstar_photography/236807992/

http://detroit1701.org/Henry Ford's Electric Railroad.html