| Designator | STB15a |
| Type | Bridge Rail-to-Guardrail (B) |
| System 1 | Thrie-Beam Guardrail |
| System 2 | Vertical Concrete Bridge Railing |
| Test Specification | AASHTO MASH 2016 |
| Test Level | TL-3 |
| Drawing Status | As Submitted |
| Perm/Temp | Both |
| Contact | Northern Infrastructure Products |
| Manufacturer | Northern Infrastructure Products |
| FHWA Eligibility Letter | B-377.pdf |
| Components | |
| Drawings | STB15a_Draft06102022.pdf |
| Other Docs | |
| Archive | |
| External Links | northern-ip.com |
Long Span Structure Connection
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