Simpson Railroad

Reporting mark: STC
Railroad built, owned, and operated by the Simpson Logging Co.

The trackage has mostly been abandoned.

It is one of the last operating logging railroad operations in the continental United States

High Steel Bridge (Mason County, Washington)
Built 1929, coverted to road use in 1950
Massive steel arch bridge over South Fork Skokomish River
Open to traffic

STC - Middle Fork Satsup River Bridge (Grays Harbor County, Washington)
Built around 1920 for the logging railroad, abandoned in the 1950's.
Abandoned bridge over Middle Fork Satsup River on Simpson Timber Railroad

Vance Creek Viaduct (Mason County, Washington)
Built 1929 by American Bridge Co. for Simpson Timber rail logging operations, abandoned 1985
Massive steel arch bridge over Vance Creek on Simpson Railroad