| Designator | SWC31a |
| System Type | Concrete Barrier (C) |
| Test Specification | AASHTO MASH 2016 |
| Test Level | TL-3 |
| Anchor Type | Anchored |
| Dynamic Deflection | 12" [305mm] < DD ≤ 24" [610mm] |
| Working Width | 24" [610mm] < WW ≤ 48" [1219mm] |
| Width | 18" [457mm] < W ≤ 24" [610mm] |
| Height | 30" [762mm] < H ≤ 33" [838mm] |
| Drawing Status | In Review |
| Contact | Illinois Tollway |
| Manufacturer | Non-Proprietary |
| FHWA Eligibility Letter | B-373.pdf |
| Components | |
| Drawings | SWC31a_Draft20200915.pdf |
| Other Docs | |
| Archive | |
| External Links |