| Designator | SGR74a |
| System Type | Roadside Barrier (R) |
| Test Specification | AASHTO MASH 2016 |
| Test Level | TL-3 |
| Rail Type | Concrete |
| Deflection Category | Rigid |
| Dynamic Deflection | 0" [0mm] ≤ DD ≤ 12" [305mm] |
| Working Width | 24" [610mm] < WW ≤ 48" [1219mm] |
| Aesthetic | No |
| Width | 12" [305mm] < W ≤ 24" [610mm] |
| Height | 30" [762mm] < H ≤ 33" [838mm] |
| Manufacturer | Northern Infrastructure Products |
| Drawing Status | Review Complete |
| Contact | Northern Infrastructure Products |
| FHWA Eligibility Letter | B-365.pdf |
| Components | |
| Drawings | SGR74a_20220610.PDF |
| Other Docs | |
| Archive | |
| External Links | |
