Matthew Knudsen (Mike), Charlie Epstein (Pop). Closed-captioned for the hearing impaired. Not rated.
Summary:
Mike and his friend Pop Mechanic explore the amazing world of bridges as they watch workers build an actual bridge with truck loads of concrete and hugh steel beams, and view giant cranes in action. Join Pop as he flies over the country's most famous bridges and Mike as he operates an actual drawbridge.
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.