The bridge was designed by J. A. Jowett, City Engineer and erected by the Foster and Creighton Company in 1888, one of the earliest commissions for that firm. The bridge was abandoned by traffic in 1925 when a new structure was completed to handle heavier demand. However, the bridge continues to support the 36 inch water main and still serves as the means for water to cross Brown's Creek to reach the reservoir [as of 1987].
US 70 was commissioned in 1926, so this bridge probably never carried it.
Went exploring yesterday...found the bridge but couldn't get down to it.... Noticed a homeless person's camp, announced myself and was invited into the campsite... explained what I was trying to figure out and the homeless guy (Danny) showed me the hidden trails to get to the bottom.... So much fun!
(Repaid his kindness with a case of water and some food stuffs)