1. History Of Covered Bridges
... adequate for the movement and transportation of these things at the time. However, as the population grew and trade increased, the development of bridges was a must. Early bridges were simply logs stretched across supporting timbers. The span of the bridge was limited to the length of the supporting timber. As development continued, builders soon learned to create longer spans by using ... ...
- Word Count: 632
- Approx Pages: 3
- Grade Level: High School