Columbia River Bridge Crossings, 1999
Average Hourly Traffic
Based on current and historical average month and average day traffic data, these graphs show the directional hourly traffic volumes across the Interstate Bridge (I-5).
Wave your mouse over the list of years to the right of the graph, to get a “time lapse” view of how the hourly traffic patterns have changed over the years.
Average hourly traffic data for the Glenn Jackson Bridge (I-205) are also available. Hourly traffic counts were provided by the Oregon Department of Transportation, which maintains permanent traffic recorders on the south ends of both bridges.
Interstate Bridge (I-5)
in May of 1999