| Designator | RWB02a | 
| Category | Rail (R) | 
| Type | W-Beam (W) | 
| Function | Backup Plate (B) | 
| Manufacturer | Non-Proprietary | 
| FHWA Eligibility Letter | |
| Contact | Midwest Roadside Safety Facility | 
| Drawings | RWB02a_20161204final.pdf | 
| Other Docs | |
| Archive | RWB02a_draft20150724_comments&responses.pdf | 
| External Links | 
6-inch W-Beam Backup Plate
    
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