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A log bridge is a timber bridge that uses logs [1] that fall naturally or are intentionally felled or placed across streams. The first man-made bridges with significant span were probably intentionally felled trees .
Holzbrücke Rapperswil-Hurden, a modern bridge on the route of one of the oldest known timber bridges. The most ancient form of timber bridge is the log bridge, created by felling a tree over a gap needing to be crossed. [citation needed] Among the oldest timber bridges is the Holzbrücke Rapperswil-Hurden crossing upper Lake Zürich in ...
A corduroy road or log road is a type of road or timber trackway made by placing logs, perpendicular to the direction of the road over a low or swampy area. The result is an improvement over impassable mud or dirt roads, yet rough in the best of conditions and a hazard to horses due to shifting loose logs.
The expense of rail led to the bridges' unusual steel construction; while most logging bridges were temporary wooden structures, the Simpson Logging Company felt that only a permanent bridge would justify their investment. The bridge was converted to a roadway in 1964, though it continues to be used for logging. [2]
The Vance Creek Bridge is an arch bridge in the Satsop Hills of Mason County, Washington that was built for a logging railroad owned by the Simpson Logging Company in 1929. At 347 feet (106 m) in height, it is the second-highest railroad arch in the United States after the nearby High Steel Bridge. [2]
The High Steel Bridge is one of the tallest rail bridges in the United States and has been listed in the National Register of Historic Places. [ 13 ] In January 2019, Green Diamond Resources leased the railroad's remaining 10 miles, plus sidings, to the Peninsular Railway and Lumbermen's Museum, a locally based 501(c)3 non-profit organization.
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The Hume-Bennett Lumber Company was a logging operation in the Sequoia National Forest in the late 19th and early 20th centuries. The company and its predecessors were known for building the world's longest log flume and the first multiple-arch hydroelectric dam. [1]