| Designator | RWM22a-b |
| Category | Rail (R) |
| Type | W-Beam (W) |
| Function | Main Member (M) |
| Manufacturer | Non-Proprietary |
| FHWA Eligibility Letter | |
| Contact | |
| Drawings | RWM22a-b_20230915.pdf |
| Other Docs | |
| Archive | RWM22a-b (RE-3-73)_1979.pdf RWM22a-b_1995.pdf |
| External Links |
4-Space W-Beam Guardrail, Long (25′-0″)
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