(
Archived Bridge Hunter;
Historic Bridges; HAER;
Satellite, 1,241 photos)
I remember a rall-bascule bridge in Portland, but I could not find any notes on it. I sure hope this is not a duplicate.
Significance: The Broadway Bridge was the first bascule span built in Portland, and at
the time constructed, was the longest bascule span in the United States. It
was the last bridge built across the Willamette River by the city of
Portland, before the county took over construction and maintenance of
bridges across the Willamette River. The bridge was designed by Ralph
Modjeski, one of America's premier bridge designers. The Broadway
Bridge is significant in design for its Rall-type bascule span, which has
leaves that are engineered to roll backward as they swing upward, giving
greater horizontal clearance for river traffic. It is one of only a few Rall
bascule spans in the United States. [
HAER_data]
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Bridges Now and Then posted
Portland, Oregon's, Broadway Bridge open for river traffic, c. 1918. (Portland Archives) |
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