Washington State Patrol Officer struck by an impaired driver on US 101

PORT TOWNSEND – A Washington State Patrol (WSP) Commercial Vehicle Enforcement Officer
(CVEO) conducting a traffic stop was struck by the impaired driver of a stolen pickup truck on the U.S.
Highway 101 near Discovery Bay Tuesday morning.
CVEO Alfred L. Alderson, age 55, was completing the inspection of a semi-truck at around 9:30 a.m.
Tuesday, June 1, 2021, on the shoulder of southbound US 101 in the area of milepost 283 when he
struck from behind by a white 2005 Ford F350 driven by David S. Johnson, 40, of Sequim.
Witnesses reported seeing Johnson driving erratically southbound on U.S. 101, including passing
vehicles in a no-passing zone prior to going off the roadway to the right, onto the shoulder, and into the
back of CVEO Alderson’s fully marked 2015 Ford F150 patrol vehicle.
Johnson was unbelted at the time of the collision.
CVEO Alderson was seated inside his Ford F150 with emergency lights activated when he was struck.
He had completed his inspection and was unbelted, about to exit the vehicle. The impact of the stolen
vehicle pushed CVEO Alderson’s patrol vehicle into the semi during the collision.
Both Johnson and CVEO Alderson were airlifted to Harborview Medical Center in Seattle with serious
injuries and are currently receiving treatment. Johnson was placed into custody for suspicion of
Vehicular Assault RCW 46.61.522.
The Ford F350 Johnson was driving was previously reported stolen to the Clallam County Sheriff’s
Office (CCSO).
CVEO Alderson has been employed with the WSP since September 2011, serving primarily Clallam
and Jefferson counties.