| Designator | SGM11a |
| System Type | Median Barrier (M) |
| Test Specification | NCHRP Report 350 |
| Test Level | TL-4 |
| Rail Type | Closed Profile |
| Deflection Category | Rigid |
| Dynamic Deflection | |
| Working Width | |
| Aesthetic | Yes |
| Width | |
| Height | 30" [762mm] < H ≤ 33" [838mm] |
| Manufacturer | Non-Proprietary |
| Drawing Status | Review Complete |
| Contact | Federal Highway Administration |
| FHWA Eligibility Letter | b64.pdf |
| Components | |
| Drawings | SGM11a-b pg1.dwg SGM11a-b pg3.dwg SGM11a-b.pdf |
| Other Docs | SGM11a-b.doc |
| Archive | |
| External Links |