| Designator | STG03a | 
| Type | Guardrail-to-Guardrail (G) | 
| System 1 | MGS W-Beam Guardrail | 
| System 2 | Thrie-Beam Guardrail | 
| Test Specification | AASHTO MASH 2016 | 
| Test Level | TL-3 | 
| Drawing Status | Review Complete | 
| Perm/Temp | Permanent | 
| Contact | Midwest Roadside Safety Facility | 
| Manufacturer | Non-Proprietary | 
| FHWA Eligibility Letter | B-231.pdf | 
| Components | 4-Space W-Beam Guardrail Wide-Flange Guardrail Post MGS Timber Blockout for Steel Guardrail Post Asymmetrical W-Thrie Beam Transition Section Guardrail Bolt & Recessed Nut Guardrail Bolt & Recessed Nut Thrie-Beam Timber Blockout for Steel Posts | 
| Drawings | STG03a-b_final20150108.pdf | 
| Other Docs | |
| Archive | |
| External Links | 
Transition from Steel-Post MGS to Thrie-Beam Approach Guardrail
    
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