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Truck dealership Rush Enterprises’ first-quarter net income fell to $6.1 million, or 16 cents a share, down from $13 million, or 34 cents, a year ago.

Third-party logistics company and freight broker Hub Group’s second-quarter net income rose to $15 million, or 40 cents a share, from $13.8 million, or 35 cents, a year ago.

Union Pacific Corp. said Thursday its second-quarter profit rose 19%, on higher demand for agricultural transportation.

WASHINGTON — The House Thursday approved a bill that would require states to update their highway bridge inspection standards and perform annual inspections of structurally deficient bridges.

Eastern freight railroad Norfolk Southern Corp. said its second-quarter profit rose 15%, as higher revenue per shipment offset an overall drop in traffic and record fuel prices.

Vitran Corp. said Wednesday its second-quarter profit fell 16% to $4.6 million, or 34 cents a share, from $5.5 million, or 41 cents, a year earlier.

Arkansas Best Corp. said Wednesday its second-quarter profit fell 17% to $16.2 million, or 64 cents a share, from $19.6 million, or 78 cents, a year ago.

Truckload carrier Knight Transportation’s second-quarter profit fell to $12.7 million, or 15 cents a share, from $18.2 million, or 21 cents, a year ago.

The House approved a bill by a lopsided margin Wednesday that would restore $8 billion to the federal Highway Trust Fund to avert an expected revenue shortfall in the coming fiscal year.