A low water bridge shows how little space is between the creek top & the road. No wonder people prefaced their commitment to being somewhere "if the creek don't rise"!
Road-building technology & blasting of narrow bands of mountain sides meant that roads could access most remote mountain sites. Swinging bridges & dangerously perched roads gave way in many places to wider, safer roadways (although many still cling tenuously to mountain sides). Even so, there remain “high water” and “low water” bridges, and, depending on the amount of rain that has fallen, low water bridges flood easily & make roads impassable. Most homes have access to major roadways by roads with high water bridges, but prefer the shortcuts on the roads with low water bridges. When a low water bridge floods, people have to go many miles out of their way to get anywhere, wreaking havoc with schedules, times, & sometimes the bottoms of their vehicles if they try to cross anyway. For a person not familiar with the labyrinth of mountain roads, a flooded low water bridge meant getting lost for sure!