March 10, 2026 5:19 AM

Expect Delays on Highway 138 for an Emergency Project Starts on Wednesday

HESPERIA, CA. (Pain In The Pass) >> The California Department of Transportation (Caltrans) announces the start of an emergency project to install a drainage system along State Route Highway 138 (SR-138) between Interstate 15 Freeway and Summit Valley Road just west of Summit Office Road approximately 0.3 miles section of the highway. (see map below)

This emergency project is critical to preventing water from crossing the highway during heavy rainfall and flooding events. By installing an improved drainage system, the project will enhance roadway safety, protect the traveling public, and help maintain traffic flow during severe weather conditions.

The closure locations will happen near Summit Office Rd. and will take place with a 24/7 reversible lane closures (they will install one-way traffic signal) so expect traffic delays at times.

Please use caution and remember to reduce your speed when approaching and driving through the construction zones. Schedules are subject to change due to inclement weather or construction issues.

The project is expected to be complete at the end of 2025.

There are more ways to follow the Pain In The Pass. Join the Traffic Group on Facebook with over 165,000 members. Join the group on MeWe. Like us on the NEW page on Facebook. Follow us on Instagram, and also follow us on Threads, and X aka Twitter.

loader-image
Cajon Pass
5:19 am, Mar 10, 2026
temperature icon 47°F
few clouds
Humidity: 81 %
Pressure: 1014 mb
Wind: 13 mph
Wind Gust: 15 mph
Clouds: 14%
Visibility: 10 km
Sunrise: 7:06 am
Sunset: 6:52 pm
  • Temperature
  • Precipitation
  • Rain Chance
  • Wind
  • Humidity
  • Pressure
8:00 am
temperature icon
38°/44°°F 0 mm 0% 8 mph 82% 1015 mb 0 mm/h
11:00 am
temperature icon
54°/57°°F 0 mm 0% 5 mph 63% 1016 mb 0 mm/h
2:00 pm
temperature icon
64°/64°°F 0 mm 0% 7 mph 43% 1016 mb 0 mm/h
5:00 pm
temperature icon
63°/63°°F 0 mm 0% 8 mph 44% 1016 mb 0 mm/h
8:00 pm
temperature icon
53°/53°°F 0 mm 0% 5 mph 71% 1019 mb 0 mm/h
11:00 pm
temperature icon
42°/42°°F 0 mm 0% 3 mph 69% 1021 mb 0 mm/h
2:00 am
temperature icon
51°/51°°F 0 mm 0% 3 mph 58% 1021 mb 0 mm/h
5:00 am
temperature icon
50°/50°°F 0 mm 0% 6 mph 53% 1022 mb 0 mm/h