Cool one....easy access on south side. Built 1954, abandoned when?....just like the 93rd St. bridge in Auburn and the old HWY 54 bridge in Reece and many other not-so-old concrete monsters that are bypassed relatively early, still....this one worth a visit
When girders are "arched" like this, they're not actually acting as an arch where all members are in compression. This is simply a thickening of the girder where the shear is highest near the supports. It looks nicer than a straight girder, but is more expensive to cast.
This bridge is neither a stringer nor a slab--there is one spot in the street view where the reflection of the bridge's underside can be clearly seen, revealing that the bridge is a concrete girder bridge. It has only the outer beams, with perpendicular floor beams connecting them. Somewhat like a stringer, but definitely not a slab.
While NBI lists this bridge as a concrete stringer, a quick look at google earth ground view from the current US75 bridge tells me this is an arched concrete slab, so I listed it as such.
The bridge over Dragoon Creek in Osage County is on “S Old 75 Hwy” which is still somewhat paved (E 205th St is a graveled road to the north). It was used by local traffic until the end of 2009 when KDOT installed the current concrete barricades. It is scheduled to be demolished w/ in the next two years.