| Designator | SBB31d |
| Material | Steel Tube/Box (B) |
| Test Specification | NCHRP Report 350 |
| Test Level | TL-4 |
| Perm/Temp | Permanent |
| Mounting Type | Side |
| Deck Type | Conventional Reinforced Concrete |
| Aesthetic | No |
| See-Through | Yes |
| Retrofit | No |
| Combo Traffic/Pedestrian | No |
| Contact | Oregon Deptartment of Transportation |
| Drawing Status | No Drawing |
| Manufacturer | Non-Proprietary |
| FHWA Eligibility Letter | |
| Components | |
| Drawings | or_2tubeside_plan.tif or_2tubesideplan.tif |
| Other Docs | or_2tubesidep1.pdf or_2tubesidep2.pdf |
| Archive | |
| External Links |