| Designator | SGM27b |
| System Type | Median Barrier (M) |
| Test Specification | AASHTO MASH 2016 |
| Test Level | TL-3 |
| Rail Type | W-Beam |
| Deflection Category | Semi-Rigid |
| Dynamic Deflection | |
| Working Width | |
| Aesthetic | Yes |
| Width | |
| Height | 30" [762mm] < H ≤ 33" [838mm] |
| Manufacturer | Gregory Highway |
| Drawing Status | In Review |
| Contact | Gregory Highway |
| FHWA Eligibility Letter | B-150A.pdf |
| Components | |
| Drawings | SGM27a-d_draft20111109.pdf |
| Other Docs | B-150.pdf B-150A.pdf B-150B.pdf B-150C.pdf |
| Archive | |
| External Links |
GMS Guardrail: 31" Median W-Beam, 75" Post Spacing
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