After reading a previous post that asked whether it is possible to encounter a hydraulic control without a pool, it sparked the opposite question: Can you have a pool and no hydraulic control?
We have encountered situations where a pool is located downstream of the crossing, but there is no obvious control (boulders or cobble barrier, or similar), only a gentle upward slope of either sand or gravel that represents the end of the pool. In this instance, is it appropriate to indicate no hydraulic control is present? Or is the slope at the end of the pool considered a control?
Photo depicts a downstream pool in a wetland area, with the end of the pool where the main flow path appears to narrow (red line shown).