| Designator | SWM21a |
| System Type | Miscellaneous (M) |
| Test Specification | AASHTO MASH 2016 |
| Test Level | TL-3 |
| Anchor Type | Unknown |
| Dynamic Deflection | Unknown |
| Working Width | Unknown |
| Width | Unknown |
| Height | 30" [762mm] < H ≤ 33" [838mm] |
| Drawing Status | No Drawing |
| Contact | Asynt Solutions |
| Manufacturer | Asynt Solutions |
| FHWA Eligibility Letter | B-390.pdf |
| Components | |
| Drawings | |
| Other Docs | |
| Archive | |
| External Links |
Ape Barrier System
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