Bridge over the Creek at Frenchman's Bend (Location Key)

We can locate the "one-way [i.e. one-lane] bridge" wooden bridge on which the Tull family runs into one of the escaped spotted horses very precisely. "Spotted Horses" and The Hamlet put it about a quarter mile from Mrs. Littlejohn's lot in the hamlet (176, 335), and The Town says it's "just this side of Bookright's turn-off" - i.e. the road that leads to Bookright's farm (36). Because it's a wooden bridge, the sound of the horses running over it carries a long way, providing the episode with an appropriately loud soundtrack.