April 20, 2026 8:14 PM

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 March 26 – Saturday morning March 27 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 11pm to 8am Friday night – Saturday morning*:  from Glen Helen Parkway to Sierra Avenue; 3 of 4 lanes will be closed for pavement work. One lane will remain open to traffic. The southbound Glen Helen on ramp 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 8am Friday night – Saturday morning*:  from Sierra Avenue to Glen Helen Parkway; 3 of 4 lanes will be closed for pavement work. One lane will remain open to traffic. The Sierra Avenue on and off ramps and the Glen Helen off ramp will be closed.

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 June 2021.

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Cajon Pass
8:14 pm, Apr 20, 2026
temperature icon 58°F
overcast clouds
Humidity: 49 %
Pressure: 1013 mb
Wind: 13 mph
Wind Gust: 18 mph
Clouds: 100%
Visibility: 10 km
Sunrise: 6:11 am
Sunset: 7:24 pm
  • Temperature
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11:00 pm
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48°/54°°F 0 mm 0% 12 mph 50% 1014 mb 0 mm/h
2:00 am
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45°/49°°F 0 mm 0% 9 mph 55% 1014 mb 0 mm/h
5:00 am
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44°/44°°F 0 mm 0% 9 mph 56% 1015 mb 0 mm/h
8:00 am
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51°/51°°F 0 mm 0% 11 mph 35% 1015 mb 0 mm/h
11:00 am
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61°/61°°F 0 mm 0% 17 mph 29% 1015 mb 0 mm/h
2:00 pm
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61°/61°°F 0 mm 0% 21 mph 44% 1014 mb 0 mm/h
5:00 pm
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53°/53°°F 0.2 mm 20% 16 mph 80% 1014 mb 0 mm/h
8:00 pm
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49°/49°°F 0.22 mm 22% 15 mph 74% 1015 mb 0 mm/h