Highway 99, northbound. Geotechnical investigation planned between Rice Mill Rd and Exit 32: Steveston Hwy for 1.0 km (Richmond). Starting Sat Mar 8 until Tue Mar 11. From 9:00 PM to 6:00 AM PST daily. Watch for crews on the shoulder and pass with caution. No closure of highway required. Last updated Wed Feb 26 at 3:41 PM PST. (DBC-73289)