Railroad Bridge Load Rating Calculator
Calculate Cooper E load rating for railroad bridges from member capacity, dead load, and live load effects per AREMA Chapter 15.
Inputs
ft
kips
kips
kips
Results
Cooper E rating
80.1
Rating factor (RF)1
Impact factor33.3%
Available capacity400 kips
Adequate for E801
Adequate for 286k cars1
Normal rating80.1 E
Operating rating104.1 E
Impact multiplier1.33
Fatigue concern level2
Max Gross Weight Tons160.1
Dl Ratio0.25%
How to Use This Calculator
- Enter Span length, Member capacity, and Dead load effect.
- Set Live load (E80) and Member type.
- Review the Cooper E rating result.
- Use Rating factor (RF) and Impact factor (%) to inform your decision.
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