High Steel Bridge
Encyclopedia
High Steel Bridge is a truss arch bridge
that spans the south fork of the Skokomish River
in Mason County, Washington. It was built in 1929 by Simpson Logging Company as part of a logging railroad.
Its construction opened up an area of Olympic Peninsula timber that was previously inaccessible. The bridge span supported a single logging railroad track. In 1950, the tracks were replaced with wooden planks, allowing vehicles to pass. 1964 brought the relatively modern addition of concrete decking and guardrails.
The High Steel Bridge is one of only two Washington bridges that is considered a long-span structure formerly used as part of a logging railroad.
Truss arch bridge
A truss arch bridge combines the elements of the truss bridge and the arch bridge. The actual resolution of forces will depend upon the design. If no horizontal thrusting forces are generated this becomes an arch-shaped truss, essentially a bent beam — see moon bridge for an example...
that spans the south fork of the Skokomish River
Skokomish River
The Skokomish River is a river in Mason County, Washington, United States. It is the largest river flowing into Hood Canal, an arm of Puget Sound. From its source at the confluence of the North and South Forks the main stem Skokomish River is approximately long. The longer South Fork Skokomish...
in Mason County, Washington. It was built in 1929 by Simpson Logging Company as part of a logging railroad.
Its construction opened up an area of Olympic Peninsula timber that was previously inaccessible. The bridge span supported a single logging railroad track. In 1950, the tracks were replaced with wooden planks, allowing vehicles to pass. 1964 brought the relatively modern addition of concrete decking and guardrails.
The High Steel Bridge is one of only two Washington bridges that is considered a long-span structure formerly used as part of a logging railroad.