The Gazette investigation found that nearly half the fatal accidents on Interstate 80 in Iowa from 1994-2001 involved semi-trailer trucks. No other interstate in Iowa had a rate that high. Traffic counts are growing on a 60-70 mile stretch of I-80 in Eastern Iowa, where many of the semi-trailer trucks are concentrated. Despite the growth in traffic, state officials have no plans to improve safety by widening the highway because traffic counts are just shy of the threshold for widening the road.
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