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SNOQUALMIE PASS, Wash. — Before descending the Cascade Mountains on its final stretch to Seattle, Interstate 90 cuts through a mountain pass of old-growth forests and wetlands.

The South Dakota Transportation Commission has approved 35 bridge improvement grants totaling more than $1.3 million.

When Kevin Nelson hauls corn from his farm south of Osseo, Minn., to grain bins in Winona, Minn., lately he has added extra travel time and is paying more at the pump.

The repair and replacement of bridges is a top priority outlined in Tennessee’s Transportation Improvement Plan. Gov. Bill Haslam and Tennessee Department of Transportation Commissioner John Schroer unveiled the plan, which covers 2019-21, on April 5. The plan features $2.6 billion in infrastructure investments and encompasses 116 projects.

Despite urgent concerns over the cause of the recent collapse of a pedestrian bridge in Miami, experts agree that accelerated bridge construction (ABC) will remain a popular method for building spans.

One-fifth of Iowa’s bridges are structurally deficient, as are more than 4,100 bridges in Pennsylvania. Twenty-three percent of bridges in Rhode Island are in that category. And, Washington, D.C., has eight of them. What's Congress going to do about them? Here's a look at the week ahead for trucking on Capitol Hill.

Iowa is home to the most structurally deficient bridges, while the District of Columbia contains the fewest, according to a recent report from the American Road and Transportation Builders Association.

Bridge sensor systems are becoming integrated in the engineering and construction of spans across the country to monitor everything from load stress to movement.

The condition of the nation’s large bridges has improved over the last decade, but state transportation officials have faced challenges constructing or completing major projects on large bridges over the past five years, according to a new report by a congressional watchdog agency.

This month marks the 10th anniversary of a deadly bridge collapse in Minnesota, which shaped one of the earliest conversations about structurally deficient bridges and the significant funding needed to fix or replace infrastructure nationwide.