Arch bridges are one of the oldest types of bridges and have great natural strength. Instead of pushing straight down, the weight of an arch bridge is carried outward along the curve of the arch ...

Just 90 minutes from downtown Bellingham you’ll find an enchanted forest full of tree-lined suspension bridges, treehouses and ponds, covered in Christmas lights for the holiday season.

Work begins this spring on a three-year series of projects to build new bridges and widen culverts that carry several salmon-bearing streams under Interstate 5 south of Bellingham. Cost of the ...