| Designator | SBB44d |
| Material | Steel Tube/Box (B) |
| Test Specification | NCHRP Report 350 |
| Test Level | TL-4 |
| Perm/Temp | Permanent |
| Mounting Type | Deck |
| Deck Type | Conventional Reinforced Concrete |
| Aesthetic | Yes |
| See-Through | Yes |
| Retrofit | No |
| Combo Traffic/Pedestrian | Yes |
| Contact | California Department of Transportation |
| Drawing Status | Not Reviewed |
| Manufacturer | Non-Proprietary |
| FHWA Eligibility Letter | b-50.pdf |
| Components | |
| Drawings | Details 1 type st-40-1.pdf Details 2 type st-40-2.pdf |
| Other Docs | ST-40 FHWA approval.pdf Test Report netcr14.pdf |
| Archive | |
| External Links |