Exams - Biology 423: Fall 05 - Radford

(North Carolina’s Challenge: 8000 bridges are eligible for replacement in the next 20 years (due to condition and age). 4300 are timber bridges that are 30-50 years old today.) North Carolina – Annually 100-150 bridge projects, start of study (begin data collection) to opening project to traffic = 6 years. ................
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