Height is a relative measure. You might think the tallest bridge in Virginia would tower over its surroundings. Actually, it is just level with the mountains around it. The tough mountainous and unstable terrain influenced much of the bridge's design and construction. Grassy Creek Bridge has a vertical clearance of 250 ft above Grassy Creek in a project area with more than 400 ft of vertical elevation differential. The bridge consists of twin 1,700-ft-long cast-in-place segmental bridges, each with a deck width of 43 ft, carrying two lanes of traffic in both directions.
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