Parking lot off Hwy 42 with takeout on river right just before the bridge. Not a designated ramp, but still a manageable takeout at some rocks and grass. Short trail leads back to the parking lot.
This 16-mile section of the Big Sioux was pretty flat but with some current to it. It was wide and shallow, but no scraping or portaging occurring.
With it starting on the edge of Sioux Falls (most populated city in South Dakota), I wasn't expecting much for natural scenery. Surprisingly, it was typically banked with trees and didn't have houses right off the river. In some of the more open areas a few farms were a little farther off along with a couple well trafficked highways.
I wasn't expecting wildlife to be something that stood out about this section of the Big Sioux but it was. I must of saw just about every bird natural to this area, with geese, ducks, hawks, eagles, and more. Throw a turtle and deer in there as well and it makes for more wildlife than expected.
Gradient: Unknown. Decent current at times.
Experience Paddling at this Water Level: Paddling at this water level was good. It wasn't too high and flooded, which would take a lot with its high mud banks much of the way. If anything it could have used some more water, with it just getting shallow at times, but never needing to portage or serious hazards to avoid.
Here is information on stream gauge readings around the date of this paddle (Note: Sioux Falls gauge, located around the put in of this section):