August 20, 2026 5:04 AM

Multiple Lane Closure On Northbound & Southbound I-15 In Fontana Friday Night – Saturday Morning.

FONTANA, CA. (Pain In The Pass) >> California Department of Transportation Caltrans will continue the Pavement Rehabilitation Project on Interstate 15 in the city of Fontana on Friday July 30 – Saturday morning July 31 this weekend. Both northbound and southbound I-15 this weekend. ONLY 1 LANE WILL BE OPEN in both directions*.

This roadwork project includes repaving the four lanes in both directions, repaving the on and off ramps, replace the bridge, guardrails, and slab replacement in lanes.

Southbound 11:30pm. to 10:30am. Friday night – Saturday morning* (They may start early around 8-9pm)
• Lane Closures The I-15 southbound will have 3 of 4 lanes closed for pavement work from Glen Helen Parkway to Sierra Avenue. One lane will remain open to traffic.
• Ramp Closures Southbound Glen Helen Avenue on ramp will be closed and Sierra Avenue off ramp will be closed. Detour map for southbound I-15 from the Cajon Pass, use the I-215 south to westbound 210 freeway to avoid delays and congestion. see map below.

Northbound 11:30pm. to 10:30am. Friday night – Saturday morning*
• Lane Closures The I-15 northbound will have 3 of 4 lanes closed for pavement work from Sierra Avenue to Glen Helen Parkway. One lane will remain open to traffic.
• Ramp Closures Northbound Sierra Avenue off ramp and on ramp will be closed. Detour map for northbound traffic use eastbound 210 freeway to the northbound I-215 to avoid delays and congestion. see map below.

*Lanes may open earlier if they finish early. The work schedule will be subject to change due to weather or construction-related issues. Always reduce your speed through the work zone. Caltrans expects to complete the project by end of July 2021.

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Cajon Pass
5:04 am, Aug 20, 2026
temperature icon 72°F
clear sky
Humidity: 37 %
Pressure: 1013 mb
Wind: 11 mph
Wind Gust: 11 mph
Clouds: 2%
Visibility: 10 km
Sunrise: 6:14 am
Sunset: 7:31 pm
  • Temperature
  • Precipitation
  • Rain Chance
  • Wind
  • Humidity
  • Pressure
5:00 am
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62°/72°°F 0 mm 0% 1 mph 37% 1013 mb 0 mm/h
8:00 am
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72°/72°°F 0 mm 0% 2 mph 34% 1014 mb 0 mm/h
11:00 am
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82°/87°°F 0 mm 0% 7 mph 21% 1014 mb 0 mm/h
2:00 pm
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92°/92°°F 0 mm 0% 15 mph 14% 1012 mb 0 mm/h
5:00 pm
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88°/88°°F 0 mm 0% 16 mph 19% 1011 mb 0 mm/h
8:00 pm
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77°/77°°F 0 mm 0% 9 mph 38% 1013 mb 0 mm/h
11:00 pm
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71°/71°°F 0 mm 0% 4 mph 41% 1015 mb 0 mm/h
2:00 am
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67°/67°°F 0 mm 0% 3 mph 35% 1015 mb 0 mm/h