Vintage postcard scan.
Scan by Bill Eichelberger
BH Photo #165877
I believe the bridge that you and your mother are thinking of is the Armstrong Covered Bridge. It was likely the next crossing of Salt Fork and would have been NE of the Leeper Bridge. From what I have read about it the location matches better with your description. I believe after the Leeper Bridge collapsed the plans changed and it was decided to save the Armstrong Bridge. It was successfully moved to a park in Cambridge.
Sorry for the double post above. Not sure what happened.
Update: I no sooner posted than I got a return text from Mom. She confirms that the bridge was indeed on Read Rd. She walked across it many times. Says the house in Bill's picture is John Baird's house.
Google dot should be somewhere in what is now the lake. When you look in the satellite view you can still see a faint line in the trees where Read Rd ran down to the point in the lake and reconnected to R18 below the Salt Fork Lodge.
I have a question about location. You show the Google map pin on Leeper Rd - makes sense based on the fact that it crosses what is left of Salt Fork Creek here. But Dalejtravis.com says it was on Read Rd with this quote following "County officials intended to move the bridge to the city park in Cambridge to save it from a watery grave but it was destroyed by a careless truck driver in 1964 and removed before Salt Fork Lake was filled." This would support the idea that it actually was located where Read Rd crossed Salt Fork Creek which is now underwater between where Read Rd dead ends and Salt Fork Lodge. (I walked that road many times as a kid exploring from my grandmother's farm.)
Can you say for certain that the location you listed for the bridge is the correct one from some records? I'm just trying to be as accurate as possible in the story I am building of my ancestors. Either way, it was names for my grandmother's people (Beatrice Leeper) and sat on their land.
Thanks for whatever light you can shed.