May 31, 2026 1:35 PM

Full Nighttime Closure of Southbound 15 Ramp to Eastbound 10 Freeway Thursday and Friday Nights

ONTARIO, CA. (Pain In The Pass) >> A full overnight closure of Interstate 15 connector I-10 freeway and ramps will take place this Thursday night and Friday night as Caltrans doing bridge repair.

Caltrans will be closing lanes on Southbound I-15 to eastbound i-10 connecter ramp Nightly starting Thursday July 31 through Friday August 1 from 9pm until 6am* for maintenance work. The lane closures will begin from the Fourth Street offramp to the 10 Freeway. That means Fourth St. onramp will be closed. Two to three southbound I-15 lanes will remain OPEN at all times.

One eastbound 10 freeway lane to Etiwanda Ave offramp will be closed.

Watch for signs and please slow down near the work zone!

*Times can subject to change and could go longer or start earlier. Schedules are subject to change due to inclement weather or construction issues.

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Cajon Pass
1:35 pm, May 31, 2026
temperature icon 80°F
clear sky
Humidity: 14 %
Pressure: 1012 mb
Wind: 5 mph
Wind Gust: 10 mph
Clouds: 0%
Visibility: 10 km
Sunrise: 5:38 am
Sunset: 7:55 pm
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74°/80°°F 0 mm 0% 11 mph 14% 1011 mb 0 mm/h
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75°/78°°F 0 mm 0% 13 mph 16% 1011 mb 0 mm/h
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65°/70°°F 0 mm 0% 7 mph 26% 1011 mb 0 mm/h
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58°/58°°F 0 mm 0% 4 mph 41% 1013 mb 0 mm/h
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54°/54°°F 0 mm 0% 2 mph 39% 1012 mb 0 mm/h
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52°/52°°F 0 mm 0% 2 mph 38% 1012 mb 0 mm/h
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69°/69°°F 0 mm 0% 2 mph 23% 1013 mb 0 mm/h
11:00 am
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79°/79°°F 0 mm 0% 6 mph 21% 1012 mb 0 mm/h