Like many states, Virginia continues to face an extraordinary challenge in replacing old bridges that can no longer handle high traffic volume. But the Old Dominion is thrifty, selling most of the spans to parks or communities. Engineers Gary Rogers (Virginia Military Institute) and Richard Weyers (Virginia Tech) are featured.

Also: From hydropower to historical treasure, archaeologist Doug Sanford (Mary Washington College) takes a field trip to look at Virginia dams.

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