| Designator | SBB42d |
| Material | Steel Tube/Box (B) |
| Test Specification | NCHRP Report 350 |
| Test Level | TL-4 |
| Perm/Temp | Permanent |
| Mounting Type | Parapet |
| Deck Type | Conventional Reinforced Concrete |
| Aesthetic | Yes |
| See-Through | Yes |
| Retrofit | Yes |
| Combo Traffic/Pedestrian | No |
| Contact | California Department of Transportation |
| Drawing Status | No Drawing |
| Manufacturer | Non-Proprietary |
| FHWA Eligibility Letter | B-128.pdf |
| Components | |
| Drawings | type st-20s-1.pdf type st-20s-2.pdf type st-20s-3.pdf type st-20s-4.pdf |
| Other Docs | FHWA acceptance letter.pdf |
| Archive | |
| External Links |