The Antelope Flat Bridge

Older crossings often sat on county roads, section lines, and routes that made sense for who lived there, not who passed through. The bridge associated with Antelope Flat that provided for family movement and ranch or farm access would probably align with something like Road 35 extended north, not the later TX-256 alignment. That would explain why few remnants remain, why only concrete fragments survive, and why it is remembered as a place, not a structure. Those older bridges were used intensely, briefly, and then forgotten.

Some of the characteristics of the Antelope Flat bridge would be a narrower deck, straighter alignment, and possibly timber or low steel with concrete abutments. It was built for local access, not through traffic and was vulnerable to flood damage.
When TX-256 was upgraded, the new bridge did not reuse the old alignment, traffic shifted, and the old bridge was abandoned, washed out, or dismantled. That is why only concrete remnants survive. The older bridge likely predates the mid-1950s, may have failed or been removed earlier, and existed during your grandparents’ early farming years.

Next dirt roads to travel:

Gas pumps with hand pumps and glass measuring gauges, known as Visible Gas Pumps, worked by manually pumping fuel into a large, calibrated glass globe atop the pump.
Antelope Flat commerce

Antelope Flat functioned as a micro-community, even if it never incorporated or left much of a paper trail. It is what historians often call a service node rather than a town
Antelope Flat

The eastern Texas Panhandle didn’t support isolated self-sufficiency. Distances were long. Population was thin. Each town specialized — not by planning, but by necessity.
The Interdependence of Brice, Lakeview, Clarendon, and Memphis