This bridge consists of 3-144 foot covered wooden Howe Truss spans on
concrete piers. The spans are continuous, thus forming a roof over 430
feet long. Open windows are constructed at panel points to light the
spans and make a more artistic appearance, lack of light and unsightly
appearance having been the chief objections to covered wooden bridges.
This bridge being on the Pacific Highway, was designed for heavy traffic
loading. A laminated wood floor system is used and provision is made for
an asphaltic wearing surface although a three inch wooden decking is
used temporarily.
This type of bridge is regarded as being very durable, and under
conditions of the past year or two, very economical. The structure
complete will cost approximately $26,500.00. Mr. A. S. Kennedy was
resident engineer for this bridge as well as the one two and one-half
miles south of Dillard. The construction is being handled by the
Portland Bridge Company.
[Illustration: VAN TYNE CREEK VIADUCT NORTH OF MYRTLE CREEK IN DOUGLAS
COUNTY. BUILT IN 1918]