Aug 14, 2026 4:17 PM
Updated Aug 14, 2026 5:35 PM
Washington State Patrol (WSP) Trooper Rick Johnson said witnesses reported that the semi-truck forced the motorcycle into a barrier.
A crash blocked all lanes of State Route 18 west of the Tiger Mountain Summit Friday morning.
The westbound lanes reopened a short time later. All eastbound lanes reopened at 10 a.m.
The Washington State Department of Transportation (WSDOT) reported the closure around 8:45 a.m.
Troopers said the crash that involved a semi and a motorcycle occurred in the eastbound lanes. A passenger on the motorcycle was seriously hurt.
Washington State Patrol (WSP) Trooper Rick Johnson said witnesses reported that the semi-truck forced the motorcycle into a barrier.
issaquah-hobart road•motorcycle crash•semi-truck•state route 18•tiger mountain summit•traffic closure•washington state patrol•wsdot
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