| Designator | SBB20d | 
| Material | Steel Tube/Box (B) | 
| Test Specification | NCHRP Report 350 | 
| Test Level | TL-4 | 
| Perm/Temp | Permanent | 
| Mounting Type | Curb/Sidewalk | 
| Deck Type | Conventional Reinforced Concrete | 
| Aesthetic | No | 
| See-Through | Yes | 
| Retrofit | No | 
| Combo Traffic/Pedestrian | No | 
| Contact | Michigan Department of Transportation | 
| Drawing Status | No Drawing | 
| Manufacturer | Non-Proprietary | 
| FHWA Eligibility Letter | |
| Components | |
| Drawings | |
| Other Docs | mi_brtp1.pdf mi_brtp2.pdf | 
| Archive | |
| External Links | 
MI Tubular Railing
    
        |
    
     0    
                    
                        
                     
															