A 10k loop that starts and ends outside Gregory Gym on the UT campus. The Waller Creek part is not recommended after dark.
This is a nice 10k loop that starts and ends outside Gregory Gym on the UT campus. The Waller Creek portion from about 6th to 12th has some "transient" traffic and is the only portion some might consider "unsafe".

UT--Shoal Creek--Town Lake--Waller Creek--UT