| Designator | STB11 |
| Type | Bridge Rail-to-Guardrail (B) |
| System 1 | Thrie-Beam Guardrail |
| System 2 | Timber Bridge Railing |
| Test Specification | NCHRP Report 350 |
| Test Level | TL-4 |
| Drawing Status | No Drawing |
| Perm/Temp | Permanent |
| Contact | Midwest Roadside Safety Facility |
| Manufacturer | Non-Proprietary |
| FHWA Eligibility Letter | b138.pdf |
| Components | |
| Drawings | Tranbloc.dwg TranblocReport.dwg Trancsb.dwg TrancsbReport.dwg Trangrb.dwg Transplt.dwg tran3d.dwg tranmain.DWG trbr12.DWG trbr34.DWG trcondt.DWG |
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