Published May 11, 2026 6:20 am
Caltrans Map
Sonora, CA — Starting today and continuing through October, Caltrans reports that it will be replacing culverts at various locations across Tuolumne and Calaveras counties, on Highways 4 and 49.
The work includes boring deeper culverts, backfilling, concrete casing, paving, installing rock slope protection, and restriping. Travelers should be prepared for one-way traffic control Monday through Fridays from 7 am 4 pm at various locations along those two highways.
The work is being overseen by Wylatti Resource Management and is subject to change based on weather and availability of construction supplies.
Written by BJ Hansen.
Sign up for our Breaking News Alerts and the myMotherLode.com Daily Newsletters by clicking here. Report breaking news, traffic or weather to our News Hotline (209) 532-6397. Send Mother Lode News Story photos to news@clarkebroadcasting.com.
For Caltrans traffic information for Highway’s 4, 49, 59, 108, and 120 plus a view of traffic on other Mother Lode roads click on “Traffic” or keyword: traffic and our local gas price page is here. For an overview of extreme weather news stories go here.