April 5, 2026 9:43 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 23 – Saturday morning July 24 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 8pm. to 8am. Friday night – Saturday morning*
• 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 11pm. to 9am. 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
9:43 am, Apr 5, 2026
temperature icon 66°F
broken clouds
Humidity: 14 %
Pressure: 1017 mb
Wind: 4 mph
Wind Gust: 5 mph
Clouds: 52%
Visibility: 10 km
Sunrise: 6:30 am
Sunset: 7:13 pm
  • Temperature
  • Precipitation
  • Rain Chance
  • Wind
  • Humidity
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11:00 am
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66°/68°°F 0 mm 0% 5 mph 13% 1017 mb 0 mm/h
2:00 pm
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68°/70°°F 0 mm 0% 5 mph 13% 1016 mb 0 mm/h
5:00 pm
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70°/71°°F 0 mm 0% 8 mph 10% 1015 mb 0 mm/h
8:00 pm
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59°/59°°F 0 mm 0% 6 mph 16% 1015 mb 0 mm/h
11:00 pm
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57°/57°°F 0 mm 0% 5 mph 21% 1016 mb 0 mm/h
2:00 am
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59°/59°°F 0 mm 0% 5 mph 26% 1016 mb 0 mm/h
5:00 am
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57°/57°°F 0 mm 0% 5 mph 28% 1015 mb 0 mm/h
8:00 am
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60°/60°°F 0 mm 0% 3 mph 26% 1016 mb 0 mm/h