Wash. Rev. Code § 81.60.070
Every person who, in such manner as might, if not discovered, endanger the safety of any engine, motor, car or train, or any person thereon, shall in any manner interfere or tamper with or obstruct any switch, frog, rail, roadbed, sleeper, viaduct, bridge, trestle, culvert, embankment, structure, or appliance pertaining to or connected with any railway, or any train, engine, motor, or car on such railway, and every person who shall discharge any firearm or throw any dangerous missile at any train, engine, motor, or car on any railway, is guilty of a class B felony and shall be punished by imprisonment in a state correctional facility for not more than ten years.
RCW 81.60.070
Intent-Effective date-2003 c 53: See notes following RCW 2.48.180.
Application-1999 c 352 ss 3-5: See note following RCW 9.94A.515.