Description
The bridge structure contains 15 spans and 60 girders. The total length is 2,727 feet (831 metres), and the vertical clearance at low river levels is 85 ft (26 m). The longest span is 430 feet (130 m) and is sandwiched by two 300-foot (91 m) spans. The bridge carries six lanes of traffic (three in each direction—two through lanes, and one merging lane). Interchanges are located at each end of the bridge: On the western end (in West Linn) is an interchange with Oregon Route 43; on the eastern end (in Oregon City) is an interchange with OR 99E. The bridge is somewhat unusual in that its western approach is located on a bluff overlooking the river, whereas the eastern end is located in a lowland just south of the confluence of the Willamette and Clackamas rivers; as a result, westbound traffic on I-205 travels uphill the entire length of the bridge, and continues uphill for another half-mile before the freeway summits and heads back downhill, into the lower Tualatin River basin.
Read more about this topic: Abernethy Bridge
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