#21 Watson Road | Changes Effective December 2, 2024:
- New Service: Route will serve the Fenton area, including Bowles Avenue and the Amazon warehouse.
- Service Frequency:
- Between Watson-at-Kirkwood and Shrewsbury Transit Center: 30-minute frequency (daytime weekdays) | 40-minute frequency (nights and weekends)
- Route will alternate trips between Watson-at-Kirkwood and Fenton, and Watson-at-Kirkwood and St. Louis Community College at Meramec: 60-minute frequency (daytime weekdays) | 80-minute frequency (nights and weekends)