Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
4.6
Points
0.5
Fiction/Nonfiction
Nonfiction
Word Count
3421
Points per Word
0.000146
Page Count
48
Points per Page
0.010417
Description
This book tells how bridges were made stronger and better through the years, including improvements in materials and design and what might be used in the future for building bridges.