Mariposa County One-Way Traffic Control Resumes Monday Through Friday on State Route 41, Beginning at the Mariposa/Madera County Line Details Last Updated: Monday, 03 October 2016 03:15 Published: Monday, 03 October 2016 03:14 View Comments October 3, 2016 - Caltrans reminds motorists in Mariposa County: One-way traffic control resumes Monday, October 2 through Friday, October 7 on State Route 41, beginning at the Mariposa/Madera county line. View the discussion thread. back to top