Determination of appropriate stormwater discharge monitoring points is a fundamental component of an effective process for managing stormwater and temporary erosion and sediment control in compliance with project-issued Section 402 Construction Stormwater General Permit Conditions. Permit wording can be general and challenging to interpret.

Detention is an extremely important factor in flood management, it is also expensive, yet we use flow control technology that is hundreds of years old to size and manage these systems. The reason? Designers are not aware that there are viable alternatives that are easy to use and very effective at optimizing detention systems. This presentation will highlight alternative flow controls that employ vortex flow control system and case study projects that have gained significant benefits from the use of these advanced passive controls, including significant cost reductions.

Erosion control practitioners are often called upon to work below the ordinary high water to complete projects in the areas regulated by the army corps of engineers. There is volumes of manuals for geomorphology and successful stream restoration and revegetation, and there is a depth of engineering manuals for large water bodies to install coffer cells and work off of barges. However the guidance on temporary works to divert small rivers, creeks and streams before and during construction begins is difficult to find. This presentation aims to fill some of that gap with strategies for working in live streams on the small or mid-size project that requires modification to the stream bed.