Pass Conditions

ID · I-90

Driving to Silver Mountain

This is a road-access page, not a resort snow report. Confirm lift and terrain operations with the resort.

Road construction on I-90 Both Directions from MM (33) to MM (25). All Lanes Intermittent. 3/26/2026 8:16 AM Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 13ft Length Restriction: 100ft Speed Restriction: 45mph

Both · Commercial restrictionRoad construction on I-90 Both Directions from MM (33) to MM (25). All Lanes Intermittent. 3/26/2026 8:16 AM Mon, Tue, Wed, Thu, Fri, Sat, Sun: Active all day Width Restriction: 13ft Length Restriction: 100ft Speed Restriction: 45mph

Both · Restriction detailSingle lane traffic both directions bottom of both sides of the pass. Two separate zones with 4 miles between for cars to pass slow moving vehicles. Exit 28 eastbound off ramp closed 08/24/2026 to 8/27/2026 all day. reopening 8/28/2026

Both · Commercial restrictionWidth restriction: 13 feet wide

Both · Commercial restrictionLength restriction: 100 feet long

Both · Commercial restrictionSpeed restriction: 45 mph

Idaho 511 · agency update 25 days ago

Our readingRestrictions in force for commercial vehicles

Pipeline observation: Sep 14, 2026, 9:40 PM UTC · Agency update: Aug 20, 2026, 5:30 PM UTC

Coverage:Idaho 511 road-condition segments, mountain-pass locations and commercial restrictions, polled every 10 minutes.Idaho 511 may pause pass reporting outside winter operations. A 'No report' reading is shown as unknown, never as an all-clear.

Route and snow context

Primary access
I-90
Related pass
Fourth of July Pass
24h analyzed snowfall
0.0 in at the pass point
Nearby SNOTEL depth
1.0 in — not measured at the road
72h NWS-grid forecast
0.0 in

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2026-09-14 through 2026-09-16, inclusive, Pacific time. Season option ends 2027-04-30.

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NOHRSC is gridded analysis; SNOTEL is a nearby station; NWS grid forecasts are not road-surface forecasts. Signs and closures are authoritative.