LRFD - Standard Culvert Plans - TWC
Twin Box Bell Joints
| Model Name (English) 2020 | Description |
| TWRCB-G1-20 | Index and General Notes |
| TWCBJ 1-20 | Culvert Bell Joints, 8' Span |
| TWCBJ 2-20 | Culvert Bell Joints, 10' & 12' Spans |
| TWCBJ 3-20 | Culvert Bell Joints, All Spans |