Work on the extension to Manor is underway from the north end of the Southern Walnut Creek Multi-use Path at Daffan Lane.
When construction was underway on the now completed Southern Walnut Creek Path, we went with a group of friends on multiple trips to ride mtn bikes through the construction zone on Sundays to explore and chart progress.
I made a joking reference on Facebook about an overview of the route and construction corridor (there may be an existing rough two-track) and noted it would be fun to explore on a mtn bike.
Pretty quickly, a City of Austin rep posted up, "Please don't do that..."