Ray (webmaster) on 8/19/2013 3:37:53 PM:
The only thing I would add is that Machens Road is very easy to miss. Heading north/east on 94, you'll pass miles and miles of corn and soybean fields, and then Machens Rd is a tiny little road with a few houses on it. These two or three houses apparently are the town of Machens. There is a road sign, but again it's easy to miss.
I'd search for Machens MO on Google maps. Be aware of which streets lead to Portage des Sioux. Assuming you're headed north/east on 94, start looking for Machens Rd on the right just after the roads that lead to Portage des Sioux on the left.
Like Don said, you'll need to get dropped off there, since there is no parking. After you cross the railroad tracks, the lonely little gravel road heading to the left will take you right there.
A sign says "No Katy Trail Access" but I think they're just trying to prevent people from parking there. My wife dropped off my son and me there for our latest ride and it worked just fine.