My pools started off as a runoff as well. The natural "branch" as small intermittent streams are called here. I dug several holes and stacked up some rocks downstream of each. Now I have pools for a good while after every overflow period. Serves two purposes. One to drop out sediment from pond but also the rest of the hillside above- which means I dig them back out when they fill in. The other is to create some water features to enjoy! I get the gurgle as it flows down, critters come to it and do their own fishing (coon & possum tracks are common in the mud), and I can rescue my fish before they hit the bigger creek.
Great looking bridge! Did you buy the under-structure or fab?
